BOK FINANCIAL CORP ET AL, 10-Q filed on 8/1/2014
Quarterly Report
Document And Entity Information (USD $)
6 Months Ended
Jun. 30, 2014
Document and Entity Information [Abstract]
 
Entity Registrant Name
BOK FINANCIAL CORP ET AL 
Entity Central Index Key
0000875357 
Current Fiscal Year End Date
--12-31 
Entity Well-known Seasoned Issuer
Yes 
Entity Voluntary Filers
Yes 
Entity Current Reporting Status
Yes 
Entity Filer Category
Large Accelerated Filer 
Entity Public Float
$ 1,782,640,442 
Entity Common Stock, Shares Outstanding
69,286,001 
Document Fiscal Year Focus
2014 
Document Fiscal Period Focus
Q2 
Document Type
10-Q 
Amendment Flag
false 
Document Period End Date
Jun. 30, 2014 
Consolidated Statements of Earnings (Unaudited) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Interest revenue [Abstract]
 
 
 
 
Loans
$ 125,493 
$ 124,297 
$ 247,964 
$ 249,410 
Residential mortgage loans held for sale
2,523 
2,294 
4,113 
4,086 
Trading securities
408 
621 
819 
1,099 
Taxable securities
3,195 
3,604 
6,477 
7,402 
Tax-exempt securities
1,471 
1,150 
2,975 
2,178 
Total investment securities
4,666 
4,754 
9,452 
9,580 
Taxable securities
46,458 
51,360 
93,713 
106,367 
Tax-exempt securities
631 
687 
1,125 
1,291 
Total available for sale securities
47,089 
52,047 
94,838 
107,658 
Fair value option securities
794 
1,024 
1,645 
2,201 
Restricted equity securities
1,275 
1,462 
2,272 
2,327 
Interest-bearing cash and cash equivalents
383 
278 
648 
462 
Total interest revenue
182,631 
186,777 
361,751 
376,823 
Interest expense [Abstract]
 
 
 
 
Deposits
12,777 
13,909 
25,763 
28,790 
Borrowed funds
1,568 
1,776 
2,902 
3,330 
Subordinated debentures
2,189 
2,200 
4,347 
4,359 
Total interest expense
16,534 
17,885 
33,012 
36,479 
Net interest revenue
166,097 
168,892 
328,739 
340,344 
Provision for credit losses
0 
0 
0 
(8,000)
Net interest revenue after provision for credit losses
166,097 
168,892 
328,739 
348,344 
Other operating revenue [Abstract]
 
 
 
 
Brokerage and trading revenue
39,056 
32,874 
68,572 
64,625 
Transaction card revenue
31,510 
29,942 
60,644 
57,633 
Fiduciary and asset management revenue
29,543 
24,803 
55,265 
47,116 
Deposit service charges and fees
23,133 
23,962 
45,822 
46,928 
Mortgage banking revenue
29,330 
36,596 
52,174 
76,572 
Bank-owned life insurance
2,274 
2,236 
4,380 
5,462 
Other revenue
9,208 
8,760 
18,060 
17,902 
Total fees and commissions
164,054 
159,173 
304,917 
316,238 
Gain (loss) on assets, net
(52)
(1,666)
(4,316)
(1,199)
Gain (loss) on derivatives, net
831 
(2,527)
1,799 
(3,468)
Gain (loss) on fair value option securities, net
4,176 
(9,156)
6,836 
(12,327)
Change in fair value of mortgage servicing rights
(6,444)
14,315 
(10,905)
16,973 
Gain on available for sale securities, net
4 
3,753 
1,244 
8,608 
Total other-than-temporary impairment losses
0 
(1,138)
0 
(1,138)
Portion of loss recognized in (reclassified from) other comprehensive income
0 
586 
0 
339 
Net impairment losses recognized in earnings
0 
(552)
0 
(799)
Total other operating revenue
162,569 
163,340 
299,575 
324,026 
Other operating expense [Abstract]
 
 
 
 
Personnel
123,714 
128,110 
228,147 
253,765 
Business promotion
7,150 
5,770 
12,991 
11,223 
Charitable contributions to BOKF Foundation
0 
0 
2,420 
0 
Professional fees and services
11,054 
8,381 
18,619 
15,366 
Net occupancy and equipment
18,789 
16,909 
35,685 
33,390 
Insurance
4,467 
4,044 
9,008 
7,789 
Data processing and communications
29,071 
26,734 
56,206 
52,184 
Printing, postage and supplies
3,429 
3,580 
6,970 
7,254 
Net losses and operating expenses of repossessed assets
1,118 
282 
2,550 
1,528 
Amortization of intangible assets
949 
875 
1,765 
1,751 
Mortgage banking costs
7,960 
7,910 
11,594 
15,264 
Other expense
7,006 
8,326 
13,856 
15,390 
Total other operating expense
214,707 
210,921 
399,811 
414,904 
Net income before taxes
113,959 
121,311 
228,503 
257,466 
Federal and state income taxes
37,230 
41,423 
74,731 
88,519 
Net income
76,729 
79,888 
153,772 
168,947 
Net income (loss) attributable to non-controlling interest
834 
(43)
1,287 
1,052 
Net income attributable to BOK Financial Corporation shareholders
$ 75,895 
$ 79,931 
$ 152,485 
$ 167,895 
Earnings per share: [Abstract]
 
 
 
 
Basic (in dollars per share)
$ 1.10 
$ 1.16 
$ 2.21 
$ 2.45 
Diluted (in dollars per share)
$ 1.10 
$ 1.16 
$ 2.20 
$ 2.44 
Average shares used in computation: [Abstract]
 
 
 
 
Basic (in shares)
68,359,945 
67,993,822 
68,318,689 
67,904,599 
Diluted (in shares)
68,511,378 
68,212,497 
68,475,802 
68,126,751 
Dividends declared per share (in dollars per share)
$ 0.40 
$ 0.38 
$ 0.80 
$ 0.76 
Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
 
 
 
 
Net income
$ 76,729 
$ 79,888 
$ 153,772 
$ 168,947 
Other comprehensive income (loss) before income taxes: [Abstract]
 
 
 
 
Net change in unrealized gain (loss)
70,038 
(183,186)
124,651 
(204,545)
Reclassification adjustments included in earnings [Abstract]
 
 
 
 
Interest revenue, Investment securities, Taxable securities
(333)
(873)
(736)
(2,021)
Interest expense, Subordinated debentures
71 
72 
154 
124 
Net impairment losses recognized in earnings
0 
552 
0 
799 
Gain on available for sale securities, net
(4)
(3,753)
(1,244)
(8,608)
Other comprehensive income (loss) before income taxes
69,772 
(187,188)
122,825 
(214,251)
Federal and state income taxes
(27,151)
72,819 
(47,786)1
83,345 1
Other comprehensive income (loss), net of income taxes
42,621 
(114,369)
75,039 
(130,906)
Comprehensive income (loss)
119,350 
(34,481)
228,811 
38,041 
Comprehensive income (loss) attributable to non-controlling interests
834 
(43)
1,287 
1,052 
Comprehensive income (loss) attributable to BOK Financial Corp. shareholders
$ 118,516 
$ (34,438)
$ 227,524 
$ 36,989 
Consolidated Balance Sheets (Unaudited) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Assets [Abstract]
 
 
 
Cash and due from banks
$ 615,479 
$ 512,931 
$ 507,551 
Interest-bearing cash and cash equivalents
732,395 
574,282 
570,836 
Trading securities
101,097 
91,616 
190,591 
Investment securities
649,937 1
677,878 2
615,790 3
Available for sale securities
9,699,146 
10,147,162 
10,698,074 
Fair value option securities
185,674 
167,125 
205,756 
Restricted equity securities
91,213 
85,240 
157,847 
Residential mortgage loans held for sale
325,875 
200,546 
301,057 
Loans
13,426,858 
12,792,264 
12,440,782 
Allowance for loan losses
(190,690)
(185,396)
(203,124)
Loans, net of allowance
13,236,168 
12,606,868 
12,237,658 
Premises and equipment, net
280,286 
277,849 
271,191 
Receivables
115,991 
117,126 
136,605 
Goodwill
377,780 
359,759 
359,759 
Intangible assets, net
36,576 
24,564 
26,242 
Mortgage servicing rights
155,740 
153,333 
132,889 
Real estate and other repossessed assets, net of allowance
100,111 
92,272 
110,112 
Derivative contracts
357,680 
265,012 
546,206 
Cash surrender value of bank-owned life insurance
289,231 
284,801 
280,047 
Receivable on unsettled securities sales
14,025 
17,174 
182,147 
Other assets
479,366 
359,894 
277,842 
Total assets
27,843,770 
27,015,432 
27,808,200 
Deposits [Abstract]
 
 
 
Noninterest-bearing demand deposits
7,908,005 
7,316,277 
7,145,323 
Interest-bearing deposits: [Abstract]
 
 
 
Transaction
9,698,404 
9,934,051 
9,266,560 
Savings
349,629 
323,006 
316,375 
Time
2,615,826 
2,695,993 
2,767,972 
Total deposits
20,571,864 
20,269,327 
19,496,230 
Funds purchased
705,573 
868,081 
747,165 
Repurchase agreements
1,072,375 
813,454 
845,106 
Other borrowings
1,231,662 
1,040,353 
2,481,644 
Subordinated debentures
347,890 
347,802 
347,716 
Accrued interest, taxes and expense
100,227 
194,870 
175,677 
Derivative contracts
297,851 
247,185 
521,991 
Due on unsettled securities purchases
124,537 
45,740 
49,369 
Other liabilities
144,145 
133,647 
150,420 
Total liabilities
24,596,124 
23,960,459 
24,815,318 
Shareholders' equity: [Abstract]
 
 
 
Common stock
4 
4 
4 
Capital surplus
938,665 
898,586 
884,238 
Retained earnings
2,447,118 
2,349,428 
2,253,810 
Treasury stock
(222,686)
(202,346)
(199,429)
Accumulated other comprehensive income (loss)
49,416 
(25,623)
19,014 
Total shareholders' equity
3,212,517 
3,020,049 
2,957,637 
Non-controlling interests
35,129 
34,924 
35,245 
Total equity
3,247,646 
3,054,973 
2,992,882 
Total liabilities and equity
$ 27,843,770 
$ 27,015,432 
$ 27,808,200 
Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)
In Thousands, except Share data, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Investment securities [Abstract]
 
 
 
Investment securities, fair value
$ 670,811 
$ 687,127 
$ 625,705 
Real estate and other repossessed assets, Valuation allowance
$ 22,530 
$ 24,195 
$ 26,857 
Shareholders' equity: [Abstract]
 
 
 
Common stock, par value (in dollars per share)
$ 0.00006 
$ 0.00006 
$ 0.00006 
Common stock, shares authorized (in shares)
2,500,000,000 
2,500,000,000 
2,500,000,000 
Common stock, shares issued (in shares)
73,896,899 
73,163,275 
73,029,101 
Common stock, shares outstanding (in shares)
73,896,899 
73,163,275 
73,029,101 
Treasury stock, shares at cost (in shares)
4,610,898 
4,304,782 
4,289,893 
Consolidated Statements of Changes in Equity (Unaudited) (USD $)
In Thousands
Total
Common Stock [Member]
Capital Surplus [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Total Shareholders' Equity [Member]
Non-Controlling Interests [Member]
Balance, beginning of period at Dec. 31, 2012
$ 2,993,681 
$ 4 
$ 859,278 
$ 2,137,541 
$ (188,883)
$ 149,920 
$ 2,957,860 
$ 35,821 
Balance, beginning of period (in shares) at Dec. 31, 2012
 
72,415 
 
 
4,088 
 
 
 
Net income
168,947 
 
 
167,895 
 
 
167,895 
1,052 
Other comprehensive income (loss)
(130,906)
 
 
 
 
(130,906)
(130,906)
 
Issuance of shares for equity compensation (in shares)
 
614 
 
 
202 
 
 
 
Issuance of shares for equity compensation
12,879 
 
23,425 
 
(10,546)
 
12,879 
 
Tax effect from equity compensation, net
178 
 
178 
 
 
 
178 
 
Stock-based compensation
1,357 
 
1,357 
 
 
 
1,357 
 
Cash dividends on common stock
(51,626)
 
 
(51,626)
 
 
(51,626)
 
Capital calls and distributions, net
(1,628)
 
 
 
 
 
 
(1,628)
Balance, end of period at Jun. 30, 2013
2,992,882 
4 
884,238 
2,253,810 
(199,429)
19,014 
2,957,637 
35,245 
Balance, end of period (in shares) at Jun. 30, 2013
 
73,029 
 
 
4,290 
 
 
 
Balance, beginning of period at Dec. 31, 2013
3,054,973 
4 
898,586 
2,349,428 
(202,346)
(25,623)
3,020,049 
34,924 
Balance, beginning of period (in shares) at Dec. 31, 2013
 
73,163 
 
 
4,305 
 
 
 
Net income
153,772 
 
 
152,485 
 
 
152,485 
1,287 
Other comprehensive income (loss)
75,039 
 
 
 
 
75,039 
75,039 
 
Issuance of shares for equity compensation (in shares)
 
734 
 
 
306 
 
 
 
Issuance of shares for equity compensation
(9,376)
 
10,964 
 
(20,340)
 
(9,376)
 
Tax effect from equity compensation, net
7,333 
 
7,333 
 
 
 
7,333 
 
Stock-based compensation
21,782 
 
21,782 
 
 
 
21,782 
 
Cash dividends on common stock
(54,795)
 
 
(54,795)
 
 
(54,795)
 
Capital calls and distributions, net
(1,082)
 
 
 
 
 
 
(1,082)
Balance, end of period at Jun. 30, 2014
$ 3,247,646 
$ 4 
$ 938,665 
$ 2,447,118 
$ (222,686)
$ 49,416 
$ 3,212,517 
$ 35,129 
Balance, end of period (in shares) at Jun. 30, 2014
 
73,897 
 
 
4,611 
 
 
 
Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Cash Flows From Operating Activities:
 
 
Net income
$ 153,772 
$ 168,947 
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
 
 
Provision for credit losses
0 
(8,000)
Change in fair value of mortgage servicing rights
10,905 
(16,973)
Unrealized losses (gains) from derivative contracts
(1,371)
6,137 
Tax effect from equity compensation, net
(7,333)
(178)
Change in bank-owned life insurance
(4,380)
(5,462)
Stock-based compensation
6,710 
1,357 
Depreciation and amortization
26,090 
27,634 
Net amortization of securities discounts and premiums
28,279 
32,867 
Net realized gains on financial instruments and other assets
(2,021)
(9,784)
Net gain on mortgage loans held for sale
(29,733)
(47,998)
Mortgage loans originated for sale
(1,818,145)
(2,152,353)
Proceeds from sale of mortgage loans held for resale
1,721,995 
2,201,324 
Capitalized mortgage servicing rights
(21,816)
(25,932)
Change in trading and fair value option securities
(28,867)
100,889 
Change in receivables
4,608 
(23,890)
Change in other assets
45,929 
38,648 
Change in accrued interest, taxes and expense
(124,579)
(1,001)
Change in other liabilities
23,629 
(13,407)
Net cash provided by (used in) operating activities
(16,328)
272,825 
Cash Flows From Investing Activities:
 
 
Proceeds from maturities or redemptions of investment securities
34,074 
99,020 
Proceeds from maturities or redemptions of available for sale securities
805,216 
1,689,165 
Purchases of investment securities
(9,593)
(217,160)
Purchases of available for sale securities
(1,597,081)
(3,173,504)
Proceeds from sales of available for sale securities
1,340,190 
1,837,970 
Change in amount receivable on unsettled securities transactions
3,149 
28,905 
Loans originated net of principal collected
(604,979)
(130,381)
Net payments on derivative asset contracts
(117,280)
(229,888)
Acquisitions, net of cash acquired
(21,898)
0 
Proceeds from disposition of assets
52,871 
53,191 
Purchases of assets
(56,778)
(115,250)
Net cash used in investing activities
(172,109)
(157,932)
Cash Flows From Financing Activities:
 
 
Net change in demand deposits, transaction deposits and savings accounts
382,704 
(1,482,810)
Net change in time deposits
(80,167)
(200,020)
Net change in other borrowed funds
223,824 
1,311,756 
Net proceeds on derivative liability contracts
119,269 
220,024 
Net change in derivative margin accounts
(218,491)
114,958 
Change in amount due on unsettled security transactions
78,797 
(248,084)
Issuance of common and treasury stock, net
(9,376)
12,879 
Tax effect from equity compensation, net
7,333 
178 
Dividends paid
(54,795)
(51,626)
Net cash provided by (used in) financing activities
449,098 
(322,745)
Net increase (decrease) in cash and cash equivalents
260,661 
(207,852)
Cash and cash equivalents at beginning of period
1,087,213 
1,286,239 
Cash and cash equivalents at end of period
1,347,874 
1,078,387 
Supplemental Cash Flow Information [Abstract]
 
 
Cash paid for interest
32,535 
36,615 
Cash paid for taxes
50,187 
73,527 
Net loans and bank premises transferred to repossessed real estate and other assets
38,797 
52,967 
Residential mortgage loans guaranteed by U.S. government agencies that became eligible for repurchase during the period
63,898 
55,938 
Conveyance of other real estate owned guaranteed by U.S. government agencies
18,312 
22,527 
Issuance of shares in settlement of accrued executive compensation
$ 15,072 
$ 0 
Significant Accounting Policies
Significant Accounting Policies [Text Block]
(1) Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of BOK Financial Corporation (“BOK Financial” or “the Company”) have been prepared in accordance with accounting principles for interim financial information generally accepted in the United States and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.

The unaudited consolidated financial statements include accounts of BOK Financial and its subsidiaries, principally BOKF, NA (“the Bank”), BOSC, Inc., The Milestone Group, Inc. and Cavanal Hill Investment Management Inc. Operating divisions of the Bank include Bank of Albuquerque, Bank of Arizona, Bank of Arkansas, Bank of Oklahoma, Bank of Texas, Colorado State Bank and Trust, Bank of Kansas City, BOK Financial Mortgage and the TransFund electronic funds network.

Certain reclassifications have been made to conform to the current period presentation.

The financial information should be read in conjunction with BOK Financial’s 2013 Form 10-K filed with the Securities and Exchange Commission, which contains audited financial statements. Amounts presented as of December 31, 2013 have been derived from the audited financial statements included in BOK Financial’s 2013 Form 10-K but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. Operating results for the six-month period ended June 30, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014.

Newly Adopted and Pending Accounting Policies

Financial Accounting Standards Board (“FASB”)

FASB Accounting Standards Update No. 2013-08, Financial Services – Investment Companies (Topic 946): Amendments to the Scope, Measurement, and Disclosure Requirements (ASU 2013-08)

On June 7, 2013, the FASB issued ASU 2013-08 which amends the criteria an entity would need to meet to qualify as an investment company under ASC 946, Financial Services - Investment Companies. ASU 2013-08 also provides additional implementation guidance for the assessment and requires additional disclosures. ASU 2013-08 was effective prospectively during interim and annual periods beginning after December 15, 2013, with early adoption prohibited. The adoption of ASU 2013-08 did not have a material impact on the Company's consolidated financial statements.

FASB Accounting Standards Update No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects (ASU 2014-01)

On January 15, 2014, the FASB issued ASU 2014-01 to simplify the amortization method an entity uses and modify the criteria to elect a measurement and presentation alternative, including the simplified amortization method, for certain investments in qualified affordable housing projects. This alternative permits the entity to present the investment's performance net of the related tax benefits as part of income tax expense. ASU 2014-01 is effective for the Company for interim and annual periods beginning after December 15, 2014. Early adoption is permitted. Adoption of ASU 2014-01 may affect income statement presentation, but otherwise is not expected to have a material impact on the Company's consolidated financial statements.

FASB Accounting Standards Update No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans Upon Foreclosure

On January 17, 2014, the FASB issued ASU 2014-04 to clarify when an entity is considered to have obtained physical possession (from an in-substance possession or foreclosure) of a residential real estate property collateralizing a mortgage loan. Upon physical possession of such real property, an entity is required to reclassify the nonperforming mortgage loan to other real estate owned. ASU 2014-04 is effective for the Company for interim and annual periods beginning after December 15, 2014. Early adoption is permitted. Adoption of ASU 2014-04 is not expected to have a material impact on the Company's consolidated financial statements.
Securities
Securities [Text Block]
(2) Securities
Trading Securities
 
The fair value and net unrealized gain (loss) included in trading securities is as follows (in thousands):
 
 
 
June 30, 2014
 
December 31, 2013
 
June 30, 2013
 
 
Fair Value
 
Net Unrealized Gain (Loss)
 
Fair Value
 
Net Unrealized Gain (Loss)
 
Fair
Value
 
Net Unrealized Gain (Loss)
U.S. Government agency debentures
 
$
19,027

 
$
6

 
$
34,120

 
$
77

 
$
60,713

 
$
(552
)
U.S. agency residential mortgage-backed securities
 
13,540

 
3

 
21,011

 
123

 
43,858

 
38

Municipal and other tax-exempt securities
 
32,950

 
28

 
27,350

 
(182
)
 
53,819

 
(1,271
)
Other trading securities
 
35,580

 
20

 
9,135

 
(7
)
 
32,201

 
(717
)
Total
 
$
101,097

 
$
57

 
$
91,616

 
$
11

 
$
190,591

 
$
(2,502
)

Investment Securities
 
The amortized cost and fair values of investment securities are as follows (in thousands):

 
 
June 30, 2014
 
 
Amortized
 
Carrying
 
Fair
 
Gross Unrealized2
 
 
Cost
 
Value1
 
Value
 
Gain
 
Loss
Municipal and other tax-exempt
 
$
425,221

 
$
425,221

 
$
429,051

 
$
4,442

 
$
(612
)
U.S. agency residential mortgage-backed securities – Other
 
40,879

 
41,973

 
44,176

 
2,203

 
—

Other debt securities
 
182,743

 
182,743

 
197,584

 
14,914

 
(73
)
Total
 
$
648,843

 
$
649,937

 
$
670,811

 
$
21,559

 
$
(685
)
1 
Carrying value includes $1.1 million of net unrealized gain which remains in Accumulated other comprehensive income (“AOCI”) in the Consolidated Balance Sheets related to certain securities transferred from the Available for Sale securities portfolio to the Investment securities portfolio as discussed in greater detail following.
2 
Gross unrealized gains and losses are not recognized in AOCI in the Consolidated Balance Sheets.
 
 
December 31, 2013
 
 
Amortized
 
Carrying
 
Fair
 
Gross Unrealized2
 
 
Cost
 
Value1
 
Value
 
Gain
 
Loss
Municipal and other tax-exempt
 
$
440,187

 
$
440,187

 
$
439,870

 
$
2,452

 
$
(2,769
)
U.S. agency residential mortgage-backed securities – Other
 
48,351

 
50,182

 
51,864

 
1,738

 
(56
)
Other debt securities
 
187,509

 
187,509

 
195,393

 
8,497

 
(613
)
Total
 
$
676,047

 
$
677,878

 
$
687,127

 
$
12,687

 
$
(3,438
)
1 
Carrying value includes $1.8 million of net unrealized gain which remains in Accumulated other comprehensive income (“AOCI”) in the Consolidated Balance Sheets related to certain securities transferred from the Available for Sale securities portfolio to the Investment securities portfolio as discussed in greater detail following.
2 
Gross unrealized gains and losses are not recognized in AOCI in the Consolidated Balance Sheets.
 
 
June 30, 2013
 
 
Amortized
 
Carrying
 
Fair
 
Gross Unrealized2
 
 
Cost
 
Value1
 
Value
 
Gain
 
Loss
Municipal and other tax-exempt
 
$
375,317

 
$
375,317

 
$
371,690

 
$
2,189

 
$
(5,816
)
U.S. agency residential mortgage-backed securities – Other
 
61,152

 
64,172

 
66,796

 
2,624

 
—

Other debt securities
 
176,301

 
176,301

 
187,219

 
10,978

 
(60
)
Total
 
$
612,770

 
$
615,790

 
$
625,705

 
$
15,791

 
$
(5,876
)
1 
Carrying value includes $3.0 million of net unrealized gain which remains in Accumulated other comprehensive income (“AOCI”) in the Consolidated Balance Sheets related to certain securities transferred from the Available for Sale securities portfolio to the Investment securities portfolio as discussed in greater detail following.
2 
Gross unrealized gains and losses are not recognized in AOCI in the Consolidated Balance Sheets.

During the three months ended September 30, 2011, the Company transferred certain U.S. government agency residential mortgage-backed securities from the available for sale portfolio to the investment securities (held-to-maturity) portfolio as the Company has the positive intent and ability to hold these securities to maturity. No gains or losses were recognized in the Consolidated Statement of Earnings at the time of the transfer. Transfers of debt securities into the investment securities portfolio (held-to-maturity) are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in accumulated other comprehensive income and in the carrying value of the investment securities portfolio.  Such amounts are amortized over the estimated remaining life of the security as an adjustment to yield, offsetting the related amortization of the premium or accretion of the discount on the transferred securities. At the time of transfer, the fair value totaled $131 million, amortized cost totaled $118 million and the pretax unrealized gain totaled $13 million.

The amortized cost and fair values of investment securities at June 30, 2014, by contractual maturity, are as shown in the following table (dollars in thousands):
 
 
Less than
One Year
 
One to
Five Years
 
Six to
Ten Years
 
Over
Ten Years
 
Total
 
Weighted
Average
Maturity²
Municipal and other tax-exempt:
 
 
 
 
 
 
 
 
 
 
 
 
Carrying value
 
$
36,962

 
$
296,908

 
$
52,328

 
$
39,023

 
$
425,221

 
4.14

Fair value
 
37,136

 
298,655

 
52,567

 
40,693

 
429,051

 
 
Nominal yield¹
 
1.99
%
 
1.70
%
 
2.64
%
 
5.35
%
 
2.18
%
 
 
Other debt securities:
 
 

 
 

 
 

 
 

 
 

 
 
Carrying value
 
12,853

 
32,853

 
47,576

 
89,461

 
182,743

 
8.32

Fair value
 
12,909

 
33,627

 
50,213

 
100,835

 
197,584

 
 
Nominal yield
 
3.54
%
 
4.78
%
 
5.37
%
 
6.32
%
 
5.60
%
 
 
Total fixed maturity securities:
 
 

 
 

 
 

 
 

 
 

 
 
Carrying value
 
$
49,815

 
$
329,761

 
$
99,904

 
$
128,484

 
$
607,964

 
5.39

Fair value
 
50,045

 
332,282

 
102,780

 
141,528

 
626,635

 
 

Nominal yield
 
2.39
%
 
2.01
%
 
3.94
%
 
6.02
%
 
3.20
%
 
 

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 
 

Carrying value
 
 

 
 

 
 

 
 

 
$
41,973

 
³

Fair value
 
 

 
 

 
 

 
 

 
44,176

 
 

Nominal yield4
 
 

 
 

 
 

 
 

 
2.74
%
 
 

Total investment securities:
 
 

 
 

 
 

 
 

 
 

 
 

Carrying value
 
 

 
 

 
 

 
 

 
$
649,937

 
 

Fair value
 
 

 
 

 
 

 
 

 
670,811

 
 

Nominal yield
 
 

 
 

 
 

 
 

 
3.17
%
 
 

1 
Calculated on a taxable equivalent basis using a 39% effective tax rate.
2 
Expected maturities may differ from contractual maturities, because borrowers may have the right to call or prepay obligations with or without penalty.
3 
The average expected lives of residential mortgage-backed securities were 2.9 years based upon current prepayment assumptions.
4 
The nominal yield on residential mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary - Unaudited for current yields on the investment securities portfolio.
Available for Sale Securities 

The amortized cost and fair value of available for sale securities are as follows (in thousands):
 
 
June 30, 2014
 
 
Amortized
 
Fair
 
Gross Unrealized1
 
 
 
 
Cost
 
Value
 
Gain
 
Loss
 
OTTI²
U.S. Treasury
 
$
1,023

 
$
1,024

 
$
1

 
$
—

 
$
—

Municipal and other tax-exempt
 
63,931

 
64,970

 
1,624

 
(585
)
 
—

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

U. S. government agencies:
 
 

 
 

 
 

 
 

 
 

FNMA
 
4,297,579

 
4,364,168

 
82,436

 
(15,847
)
 
—

FHLMC
 
2,055,924

 
2,068,940

 
27,019

 
(14,003
)
 
—

GNMA
 
815,201

 
820,454

 
8,850

 
(3,597
)
 
—

Other
 
5,489

 
5,942

 
453

 
—

 
—

Total U.S. government agencies
 
7,174,193

 
7,259,504

 
118,758

 
(33,447
)
 
—

Private issue:
 
 

 
 

 
 

 
 

 
 

Alt-A loans
 
70,880

 
75,700

 
4,820

 
—

 
—

Jumbo-A loans
 
97,939

 
103,342

 
5,889

 
—

 
(486
)
Total private issue
 
168,819

 
179,042

 
10,709

 
—

 
(486
)
Total residential mortgage-backed securities
 
7,343,012

 
7,438,546

 
129,467

 
(33,447
)
 
(486
)
Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,129,521

 
2,115,295

 
5,539

 
(19,765
)
 
—

Other debt securities
 
34,501

 
34,528

 
195

 
(168
)
 
—

Perpetual preferred stock
 
22,171

 
24,730

 
2,559

 
—

 
—

Equity securities and mutual funds
 
19,507

 
20,053

 
780

 
(234
)
 
—

Total
 
$
9,613,666

 
$
9,699,146

 
$
140,165

 
$
(54,199
)
 
$
(486
)
1 Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet.
2 Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.
 
 
December 31, 2013
 
 
Amortized
 
Fair
 
Gross Unrealized¹
 
 
 
 
Cost
 
Value
 
Gain
 
Loss
 
OTTI²
U.S. Treasury
 
$
1,042

 
$
1,042

 
$
—

 
$
—

 
$
—

Municipal and other tax-exempt
 
73,232

 
73,775

 
1,606

 
(1,063
)
 
—

Residential mortgage-backed securities:
 
 
 
 

 
 

 
 

 
 

U. S. government agencies:
 
 

 
 

 
 

 
 

 
 

FNMA
 
4,224,327

 
4,232,332

 
68,154

 
(60,149
)
 
—

FHLMC
 
2,308,341

 
2,293,943

 
25,813

 
(40,211
)
 
—

GNMA
 
1,151,225

 
1,152,128

 
9,435

 
(8,532
)
 
—

Other
 
36,296

 
37,607

 
1,311

 
—

 
—

Total U.S. government agencies
 
7,720,189

 
7,716,010

 
104,713

 
(108,892
)
 
—

Private issue:
 
 

 
 

 
 

 
 

 
 

Alt-A loans
 
104,559

 
107,212

 
4,386

 
—

 
(1,733
)
Jumbo-A loans
 
109,622

 
113,887

 
4,974

 
—

 
(709
)
Total private issue
 
214,181

 
221,099

 
9,360

 
—

 
(2,442
)
Total residential mortgage-backed securities
 
7,934,370

 
7,937,109

 
114,073

 
(108,892
)
 
(2,442
)
Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,100,146

 
2,055,804

 
1,042

 
(45,384
)
 
—

Other debt securities
 
35,061

 
35,241

 
368

 
(188
)
 
—

Perpetual preferred stock
 
22,171

 
22,863

 
705

 
(13
)
 
—

Equity securities and mutual funds
 
19,069

 
21,328

 
2,326

 
(67
)
 
—

Total
 
$
10,185,091

 
$
10,147,162

 
$
120,120

 
$
(155,607
)
 
$
(2,442
)
1 Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet.
2 Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.

 
 
June 30, 2013
 
 
Amortized
 
Fair
 
Gross Unrealized1
 
 
 
 
Cost
 
Value
 
Gain
 
Loss
 
OTTI²
U.S. Treasury
 
$
1,061

 
$
1,060

 
$
—

 
$
(1
)
 
$
—

Municipal and other tax-exempt
 
95,974

 
95,103

 
1,653

 
(1,870
)
 
(654
)
Residential mortgage-backed securities:
 
 
 
 
 
 
 
 
 
 
U. S. government agencies:
 
 

 
 

 
 

 
 

 
 

FNMA
 
4,648,337

 
4,687,141

 
78,285

 
(39,481
)
 
—

FHLMC
 
2,695,506

 
2,715,896

 
32,994

 
(12,604
)
 
—

GNMA
 
916,646

 
925,081

 
11,163

 
(2,728
)
 
—

Other
 
42,563

 
44,677

 
2,114

 
—

 
—

Total U.S. government agencies
 
8,303,052

 
8,372,795

 
124,556

 
(54,813
)
 
—

Private issue:
 
 

 
 

 
 

 
 

 
 

Alt-A loans
 
113,804

 
115,036

 
2,905

 
—

 
(1,673
)
Jumbo-A loans
 
178,581

 
182,139

 
4,129

 
(274
)
 
(297
)
Total private issue
 
292,385

 
297,175

 
7,034

 
(274
)
 
(1,970
)
Total residential mortgage-backed securities
 
8,595,437

 
8,669,970

 
131,590

 
(55,087
)
 
(1,970
)
Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
1,885,585

 
1,846,943

 
343

 
(38,985
)
 
—

Other debt securities
 
35,622

 
35,894

 
479

 
(207
)
 
—

Perpetual preferred stock
 
22,172

 
25,583

 
3,439

 
(28
)
 
—

Equity securities and mutual funds
 
19,990

 
23,521

 
3,736

 
(205
)
 
—

Total
 
$
10,655,841

 
$
10,698,074

 
$
141,240

 
$
(96,383
)
 
$
(2,624
)
1 
Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet
2 
Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.

The amortized cost and fair values of available for sale securities at June 30, 2014, by contractual maturity, are as shown in the following table (dollars in thousands):
 
Less than
One Year
 
One to
Five Years
 
Six to
Ten Years
 
Over
Ten Years
 
Total
 
Weighted
Average
Maturity5
U.S. Treasuries:
 
 
 
 
 
 
 
 
 
 
 
Amortized cost
$
1,023

 
$
—

 
$
—

 
$
—

 
$
1,023

 
0.63

Fair value
1,024

 
—

 
—

 
—

 
1,024

 
 
Nominal yield
0.24
%
 
—
%
 
—
%
 
—
%
 
0.24
%
 
 
Municipal and other tax-exempt:
 

 
 

 
 

 
 

 
 
 
 
Amortized cost
$
3,404

 
$
33,797

 
$
2,778

 
$
23,952

 
$
63,931

 
8.67

Fair value
3,432

 
35,004

 
3,032

 
23,502

 
64,970

 
 
Nominal yield¹
3.96
%
 
4.00
%
 
6.25
%
 
1.92
%
6 
3.32
%
 
 
Commercial mortgage-backed securities:
 
 
 
 
 
 
 
 
 
 
 
Amortized cost
$
—

 
$
626,496

 
$
1,156,265

 
$
346,760

 
$
2,129,521

 
8.84

Fair value
—

 
624,969

 
1,146,932

 
343,394

 
2,115,295

 
 
Nominal yield
—
%
 
1.30
%
 
1.63
%
 
1.27
%
 
1.47
%
 
 
Other debt securities:
 

 
 

 
 

 
 

 
 
 
 
Amortized cost
$
30,101

 
$
—

 
$
—

 
$
4,400

 
$
34,501

 
4.64

Fair value
30,297

 
—

 
—

 
4,231

 
34,528

 
 
Nominal yield
1.80
%
 
—
%
 
—
%
 
1.71
%
6 
1.79
%
 
 
Total fixed maturity securities:
 

 
 

 
 

 
 

 
 
 
 
Amortized cost
$
34,528

 
$
660,293

 
$
1,159,043

 
$
375,112

 
$
2,228,976

 
8.77

Fair value
34,753

 
659,973

 
1,149,964

 
371,127

 
2,215,817

 
 
Nominal yield
1.97
%
 
1.44
%
 
1.64
%
 
1.32
%
 
1.53
%
 
 
Residential mortgage-backed securities:
 

 
 

 
 

 
 

 
 
 
 
Amortized cost
 

 
 

 
 

 
 

 
$
7,343,012

 
2 

Fair value
 

 
 

 
 

 
 

 
7,438,546

 
 
Nominal yield4
 

 
 

 
 

 
 

 
1.87
%
 
 
Equity securities and mutual funds:
 

 
 

 
 

 
 

 
 

 
 

Amortized cost
 

 
 

 
 

 
 

 
$
41,678

 
³

Fair value
 

 
 

 
 

 
 

 
44,783

 
 

Nominal yield
 

 
 

 
 

 
 

 
1.26
%
 
 

Total available-for-sale securities:
 

 
 

 
 

 
 

 
 
 
 

Amortized cost
 

 
 

 
 

 
 

 
$
9,613,666

 
 

Fair value
 

 
 

 
 

 
 

 
9,699,146

 
 

Nominal yield
 

 
 

 
 

 
 

 
1.79
%
 
 

1 
Calculated on a taxable equivalent basis using a 39% effective tax rate.
2 
The average expected lives of mortgage-backed securities were 3.5 years based upon current prepayment assumptions.
3 
Primarily common stock and preferred stock of corporate issuers with no stated maturity.
4 
The nominal yield on mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary –– Unaudited following for current yields on available for sale securities portfolio.
5 
Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty.
6 
Nominal yield on municipal and other tax-exempt securities and other debt securities with contractual maturity dates over ten years are based on variable rates which generally are reset within 35 days.

Sales of available for sale securities resulted in gains and losses as follows (in thousands):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Proceeds
$
800,405

 
$
1,083,001

 
$
1,331,190

 
$
1,784,881

Gross realized gains
9,894

 
9,992

 
16,327

 
15,784

Gross realized losses
(9,890
)
 
(6,239
)
 
(15,083
)
 
(7,176
)
Related federal and state income tax expense
2

 
1,460

 
484

 
3,349



A summary of investment and available for sale securities that have been pledged as collateral for repurchase agreements, public trust funds on deposit and for other purposes, as required by law was as follows (in thousands):
 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
Investment:
 
 
 
 
 
Carrying value
$
77,835

 
$
89,087

 
$
97,286

Fair value
81,248

 
91,804

 
100,644

 
 
 
 
 
 
Available for sale:
 
 
 
 
 
Amortized cost
5,556,130

 
5,171,782

 
5,078,098

Fair value
5,583,008

 
5,133,530

 
5,103,507



The secured parties do not have the right to sell or re-pledge these securities. In addition, securities may be pledged as collateral on a line of credit for the trading activities of BOSC, Inc. Under the terms of the credit agreement, the creditor has the right to sell or repledge the collateral. There were no securities pledged under this line of credit at June 30, 2014, March 31, 2014 or June 30, 2013.

Temporarily Impaired Securities as of June 30, 2014
(in thousands):
 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Investment:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt
 
42

 
$
—

 
$
—

 
$
104,959

 
$
612

 
$
104,959

 
$
612

U.S. Agency residential mortgage-backed securities – Other
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other debt securities
 
30

 
3,593

 
40

 
808

 
33

 
4,401

 
73

Total investment
 
72

 
$
3,593

 
$
40

 
$
105,767

 
$
645

 
$
109,360

 
$
685


 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Available for sale:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

Municipal and other tax-exempt
 
23

 
$
571

 
$
—

 
$
22,270

 
$
585

 
$
22,841

 
$
585

Residential mortgage-backed securities:
 
 
 
 

 
 

 
 

 
 

 


 


U. S. agencies:
 
 
 
 

 
 

 
 

 
 

 


 


FNMA
 
33

 
—

 
—

 
890,711

 
15,847

 
890,711

 
15,847

FHLMC
 
37

 
255,401

 
951

 
712,951

 
13,052

 
968,352

 
14,003

GNMA
 
7

 
77,869

 
6

 
153,596

 
3,591

 
231,465

 
3,597

Total U.S. agencies
 
77

 
333,270

 
957

 
1,757,258

 
32,490

 
2,090,528

 
33,447

Private issue1:
 
 

 
 

 
 

 
 

 
 

 


 


Alt-A loans
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Jumbo-A loans
 
11

 
19,976

 
486

 
—

 
—

 
19,976

 
486

Total private issue
 
11

 
19,976

 
486

 
—

 
—

 
19,976

 
486

Total residential mortgage-backed securities
 
88

 
353,246

 
1,443

 
1,757,258

 
32,490

 
2,110,504

 
33,933

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
96

 
114,048

 
488

 
1,242,462

 
19,277

 
1,356,510

 
19,765

Other debt securities
 
2

 
—

 
—

 
4,231

 
168

 
4,231

 
168

Perpetual preferred stocks
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Equity securities and mutual   funds
 
80

 
5,298

 
195

 
1,306

 
39

 
6,604

 
234

Total available for sale
 
289

 
$
473,163


$
2,126


$
3,027,527


$
52,559


$
3,500,690


$
54,685

1Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:
Alt-A loans
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Jumbo-A loans
 
11

 
19,976

 
486

 
—

 
—

 
19,976

 
486


Temporarily Impaired Securities as of December 31, 2013
(In thousands)
 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Investment:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt
 
107

 
$
166,382

 
$
1,921

 
$
53,073

 
$
848

 
$
219,455

 
$
2,769

U.S. Agency residential mortgage-backed securities – Other
 
2

 
15,224

 
56

 
—

 
—

 
15,224

 
56

Other debt securities
 
30

 
10,932

 
549

 
777

 
64

 
11,709

 
613

Total investment
 
139

 
$
192,538

 
$
2,526

 
$
53,850

 
$
912

 
$
246,388

 
$
3,438


 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Available for sale:
 
 

 
 

 
 

 
 

 
 

 


 


Municipal and other tax-exempt
 
27

 
$
13,286

 
$
245

 
$
17,805

 
$
818

 
$
31,091

 
$
1,063

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 


 


U. S. agencies:
 
 

 
 

 
 

 
 

 
 

 


 


FNMA
 
81

 
2,281,491

 
60,149

 
—

 
—

 
2,281,491

 
60,149

FHLMC
 
50

 
1,450,588

 
40,211

 
—

 
—

 
1,450,588

 
40,211

GNMA
 
27

 
647,058

 
8,532

 
—

 
—

 
647,058

 
8,532

Total U.S. agencies
 
158

 
4,379,137

 
108,892

 
—

 
—

 
4,379,137

 
108,892

Private issue1:
 
 

 
 

 
 

 
 

 
 

 


 


Alt-A loans
 
7

 
11,043

 
756

 
30,774

 
977

 
41,817

 
1,733

Jumbo-A loans
 
9

 
14,642

 
709

 
—

 
—

 
14,642

 
709

Total private issue
 
16

 
25,685

 
1,465

 
30,774

 
977

 
56,459

 
2,442

Total residential mortgage-backed securities
 
174

 
4,404,822

 
110,357

 
30,774

 
977

 
4,435,596

 
111,334

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
123

 
1,800,717

 
45,302

 
2,286

 
82

 
1,803,003

 
45,384

Other debt securities
 
3

 
4,712

 
188

 
—

 
—

 
4,712

 
188

Perpetual preferred stocks
 
1

 
4,988

 
13

 
—

 
—

 
4,988

 
13

Equity securities and mutual funds
 
118

 
2,070

 
67

 
—

 
—

 
2,070

 
67

Total available for sale
 
446

 
$
6,230,595

 
$
156,172

 
$
50,865

 
$
1,877

 
$
6,281,460

 
$
158,049

1 
Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:
Alt-A loans
 
7

 
$
11,043

 
$
756

 
$
30,774

 
$
977

 
$
41,817

 
$
1,733

Jumbo-A loans
 
9

 
14,642

 
709

 
—

 
—

 
14,642

 
709


Temporarily Impaired Securities as of June 30, 2013
(In thousands)
 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Investment:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt
 
149

 
$
271,897

 
$
5,816

 
$
—

 
$
—

 
$
271,897

 
$
5,816

U.S. Agency residential mortgage-backed securities – Other
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other debt securities
 
14

 
841

 
60

 
—

 
—

 
841

 
60

Total investment
 
163

 
$
272,738

 
$
5,876

 
$
—

 
$
—

 
$
272,738

 
$
5,876


 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Available for sale:
 
 

 
 

 
 

 
 

 
 

 


 


U.S. Treasury
 
1

 
$
1,060

 
$
1

 
$
—

 
$
—

 
$
1,060

 
$
1

Municipal and other tax-exempt1
 
86

 
$
66,168

 
$
2,524

 
$
—

 
$
—

 
$
66,168

 
$
2,524

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 


 


U. S. agencies:
 
 

 
 

 
 

 
 

 
 

 


 


FNMA
 
72

 
2,196,603

 
39,481

 
—

 
—

 
2,196,603

 
39,481

FHLMC
 
38

 
1,202,545

 
12,604

 
—

 
—

 
1,202,545

 
12,604

GNMA
 
13

 
197,149

 
2,728

 
—

 
—

 
197,149

 
2,728

Total U.S. agencies
 
123

 
3,596,297

 
54,813

 
—

 
—

 
3,596,297

 
54,813

Private issue1:
 
 

 
 

 
 

 
 

 
 

 


 


Alt-A loans
 
10

 
51,681

 
1,236

 
3,379

 
437

 
55,060

 
1,673

Jumbo-A loans
 
2

 
17,615

 
296

 
12,298

 
275

 
29,913

 
571

Total private issue
 
12

 
69,296

 
1,532

 
15,677

 
712

 
84,973

 
2,244

Total residential mortgage-backed securities
 
135

 
3,665,593

 
56,345

 
15,677

 
712

 
3,681,270

 
57,057

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
113

 
1,730,306

 
38,985

 
—

 
—

 
1,730,306

 
38,985

Other debt securities
 
4

 
5,193

 
207

 
—

 
—

 
5,193

 
207

Perpetual preferred stocks
 
1

 
4,973

 
28

 
—

 
—

 
4,973

 
28

Equity securities and mutual funds
 
7

 
3,558

 
205

 
—

 
—

 
3,558

 
205

Total available for sale
 
347

 
$
5,476,851

 
$
98,295

 
$
15,677

 
$
712

 
$
5,492,528

 
$
99,007

1 
Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:
Municipal and other tax-exempt
 
21

 
$
11,731

 
$
654

 
$
—

 
$
—

 
$
11,731

 
$
654

Alt-A loans
 
10

 
51,681

 
1,236

 
3,379

 
437

 
55,060

 
1,673

Jumbo-A loans
 
2

 
17,615

 
296

 
—

 
—

 
17,615

 
296



On a quarterly basis, the Company performs separate evaluations of impaired debt and equity investments and available for sale securities to determine if the unrealized losses are temporary.
 
For debt securities, management determines whether it intends to sell or if it is more-likely-than-not that it will be required to sell impaired securities. This determination considers current and forecasted liquidity requirements, regulatory and capital requirements and securities portfolio management. Based on this evaluation as of June 30, 2014, the Company does not intend to sell any impaired available for sale securities before fair value recovers to the current amortized cost and it is more-likely-than-not that the Company will not be required to sell impaired securities before fair value recovers, which may be maturity.

Impairment of debt securities rated investment grade by all nationally-recognized rating agencies is considered temporary unless specific contrary information is identified. None of the debt securities rated investment grade were considered to be other-than-temporarily impaired at June 30, 2014.
At June 30, 2014, the composition of the Company’s investment and available for sale securities portfolios by the lowest current credit rating assigned by any of the three nationally-recognized rating agencies is as follows (in thousands):
 
 
 
U.S. Govt / GSE 1
 

AAA - AA
 
 
A - BBB
 
 
Below Investment Grade
 
 
Not Rated
 
 
Total
 
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
Investment:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt
 
$
—

 
$
—

 
$
271,498

 
$
272,244

 
$
16,497

 
$
16,721

 
$
—

 
$
—

 
$
137,226

 
$
140,086

 
$
425,221

 
$
429,051

Mortgage-backed securities -- other
 
41,973

 
44,176

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
41,973

 
44,176

Other debt securities
 
—

 
—

 
160,353

 
175,071

 
—

 
—

 
—

 
—

 
22,390

 
22,513

 
182,743

 
197,584

Total investment securities
 
$
41,973

 
$
44,176

 
$
431,851

 
$
447,315

 
$
16,497

 
$
16,721

 
$
—

 
$
—

 
$
159,616

 
$
162,599

 
$
649,937

 
$
670,811

 
 
U.S. Govt / GSE 1
 
AAA - AA
 
 
A - BBB
 
Below Investment Grade
 
Not Rated
 
Total
 
 
Amortized Cost
 
Fair
Value
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair
Value
Available for Sale:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

U.S. Treasury
 
$
1,023

 
$
1,024

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
1,023

 
$
1,024

Municipal and other tax-exempt
 
—

 
—

 
40,967

 
42,360

 
11,505

 
11,225

 
—

 
—

 
11,459

 
11,385

 
63,931

 
64,970

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 


 


U. S. government agencies:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 


 


FNMA
 
4,297,579

 
4,364,168

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
4,297,579

 
4,364,168

FHLMC
 
2,055,924

 
2,068,940

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
2,055,924

 
2,068,940

GNMA
 
815,201

 
820,454

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
815,201

 
820,454

Other
 
5,489

 
5,942

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
5,489

 
5,942

Total U.S. government agencies
 
7,174,193

 
7,259,504

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
7,174,193

 
7,259,504

Private issue:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 


 


Alt-A loans
 
—

 
—

 
—

 
—

 
—

 
—

 
70,880

 
75,700

 
—

 
—

 
70,880

 
75,700

Jumbo-A loans
 
—

 
—

 
—

 
—

 
—

 
—

 
97,939

 
103,342

 
—

 
—

 
97,939

 
103,342

Total private issue
 
—

 
—

 
—

 
—

 
—

 
—

 
168,819

 
179,042

 
—

 
—

 
168,819

 
179,042

Total residential mortgage-backed securities
 
7,174,193

 
7,259,504

 
—

 
—

 
—

 
—

 
168,819

 
179,042

 
—

 
—

 
7,343,012

 
7,438,546

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,129,521

 
2,115,295

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
2,129,521

 
2,115,295

Other debt securities
 
—

 
—

 
4,400

 
4,231

 
30,101

 
30,297

 
—

 
—

 
—

 
—

 
34,501

 
34,528

Perpetual preferred stock
 
—

 
—

 
—

 
—

 
11,406

 
12,588

 
10,765

 
12,142

 
—

 
—

 
22,171

 
24,730

Equity securities and mutual funds
 
—

 
—

 
4

 
505

 
—

 
—

 
—

 
—

 
19,503

 
19,548

 
19,507

 
20,053

Total available for sale securities
 
$
9,304,737

 
$
9,375,823

 
$
45,371

 
$
47,096

 
$
53,012

 
$
54,110

 
$
179,584

 
$
191,184

 
$
30,962

 
$
30,933

 
$
9,613,666

 
$
9,699,146

1 
U.S. government and government sponsored enterprises are not rated by the nationally-recognized rating agencies as these securities are guaranteed by agencies of the U.S. government or government-sponsored enterprises.
At June 30, 2014, the entire portfolio of privately issued residential mortgage-backed securities was rated below investment grade. The gross unrealized loss on these securities totaled $486 thousand. Ratings by the nationally-recognized rating agencies are subjective in nature and accordingly ratings can vary significantly amongst the agencies. Limitations generally expressed by the rating agencies include statements that ratings do not predict the specific percentage default likelihood over any given period of time and that ratings do not opine on expected loss severity of an obligation should the issuer default. As such, the impairment of securities rated below investment grade was evaluated to determine if we expect not to recover the entire amortized cost basis of the security. This evaluation was based on projections of estimated cash flows based on individual loans underlying each security using current and anticipated increases in unemployment and default rates, decreases in housing prices and estimated liquidation costs at foreclosure.

The primary assumptions used in this evaluation were:

 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
 
 
 
 
 
 
Unemployment rate
Held constant at 6.7% over the next 12 months and remains at 6.7% thereafter.
 
Increasing to 7.3% over the next 12 months and remain at 7.3% thereafter.
 
Increasing to 8% over the next 12 months and remain at 8% thereafter.
Housing price appreciation/depreciation
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 4% over the next 12 months, then flat for the following 12 months and then appreciating at 2% per year thereafter.
 
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 4% over the next 12 months, then flat for the following 12 months and then appreciating at 2% per year thereafter.
 
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 5% over the next 12 months, then flat for he following 12 months and then appreciating at 2% per year thereafter.
Estimated liquidation costs
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.
 
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.
 
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.
Discount rates
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.
 
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.
 
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.

1 
Federal Housing Finance Agency

We also consider the current loan-to-value ratio and remaining credit enhancement as part of the assessment of the cash flows available to recover the amortized cost of the debt securities. Each factor is considered in the evaluation.

The Company calculates the current loan-to-value ratio for each mortgage-backed security using loan-level data. The current loan-to-value ratio is the current outstanding loan amount divided by an estimate of the current home value. The current home value is derived from FHFA data. FHFA provides historical information on home price depreciation at both the Metropolitan Statistical Area and state level.  This information is matched to each loan to estimate the home price depreciation. Data is accumulated from the loan level to determine the current loan-to-value ratio for the security as a whole.

Remaining credit enhancement is the amount of credit enhancement available to absorb current projected losses within the pool of loans that support the security. The Company acquires the benefit of credit enhancement by investing in senior or super-senior tranches for many of our residential mortgage-backed securities. Subordinated tranches held by other investors are specifically designed to absorb losses before the senior or super-senior tranches, which effectively increases the typical credit support for these types of bonds. Current projected losses consider depreciation of home prices based on FHFA data, estimated costs and additional losses to liquidate collateral and delinquency status of the individual loans underlying the security.

Credit loss impairment is recorded as a charge to earnings. Additional impairment based on the difference between the total unrealized loss and the estimated credit loss on these securities is charged against other comprehensive income, net of deferred taxes. No credit loss impairments were recognized in earnings on privately issued residential mortgage-backed securities during the three months ended June 30, 2014.

A distribution of the amortized cost (after recognition of the other-than-temporary impairment), fair value and credit loss impairments recognized on our privately issued residential mortgage-backed securities is as follows (in thousands, except for number of securities):
 
 
 
 
 
 
 
 
Credit Losses Recognized
 
 
 
 
 
 
 
 
Three months ended
 
 
 
 
 
 
 
 
 
 
June 30, 2014
 
Life-to-date
 
 
Number of Securities
 
Amortized Cost
 
Fair Value
 
Number of
Securities
 
Amount
 
Number of Securities
 
Amount
Alt-A
 
14

 
$
70,880

 
$
75,700

 
—

 
$
—

 
14

 
$
36,127

Jumbo-A
 
30

 
97,939

 
103,342

 
—

 
—

 
29

 
18,220

Total
 
44

 
$
168,819

 
$
179,042

 
—

 
$
—

 
43

 
$
54,347



Impaired equity securities, including perpetual preferred stocks, are evaluated based on management's ability and intent to hold the securities until fair value recovers over periods not to exceed three years. The assessment of the ability and intent to hold these securities focuses on the liquidity needs, asset/liability management objectives and securities portfolio objectives. Factors considered when assessing recovery include forecasts of general economic conditions and specific performance of the issuer, analyst ratings and credit spreads for preferred stocks which have debt-like characteristics. The Company has evaluated the near-term prospects of the investments in relation to the severity and duration of the impairment and based on that evaluation has the ability and intent to hold these investments until a recovery in fair value. Accordingly, all impairment of equity securities was considered temporary at June 30, 2014.

The following is a tabular roll forward of the amount of credit-related OTTI recognized on available for sale debt securities in earnings (in thousands):
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Balance of credit-related OTTI recognized on available for sale debt, beginning of period
 
$
54,347

 
$
75,475

 
$
67,346

 
$
75,228

Additions for credit-related OTTI not previously recognized
 
—

 
552

 
—

 
552

Additions for increases in credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost
 
—

 
—

 
—

 
247

Reductions for change in intent to hold before recovery
 
—

 
—

 
—

 
—

Sales
 
—

 
—

 
(12,999
)
 
—

Balance of credit-related OTTI recognized on available for sale debt securities, end of period
 
$
54,347

 
$
76,027

 
$
54,347

 
$
76,027



Additions above exclude other-than-temporary impairment recorded due to change in intent to hold before recovery.
Fair Value Option Securities
 
Fair value option securities represent securities which the Company has elected to carry at fair value and are separately identified on the Consolidated Balance Sheets. Changes in the fair value are recognized in earnings as they occur. Certain residential mortgage-backed securities issued by U.S. government agencies and derivative contracts are held as an economic hedge of the mortgage servicing rights. In addition, certain corporate debt securities are economically hedged by derivative contracts to manage interest rate risk. Derivative contracts that have not been designated as hedging instruments effectively modify these fixed rate securities into variable rate securities.

The fair value and net unrealized gain (loss) included in fair value option securities is as follows (in thousands):
 
 
June 30, 2014
 
December 31, 2013
 
June 30, 2013
 
 
Fair Value
 
Net Unrealized Gain (Loss)
 
Fair Value
 
Net Unrealized Gain (Loss)
 
Fair
Value
 
Net Unrealized Gain (Loss)
U.S. agency residential mortgage-backed securities
 
$
181,205

 
$
(1,720
)
 
$
157,431

 
$
(8,378
)
 
$
203,816

 
$
(8,048
)
Other securities
 
4,469

 
387

 
9,694

 
209

 
1,940

 
(8
)
Total
 
$
185,674

 
$
(1,333
)
 
$
167,125

 
$
(8,169
)
 
$
205,756

 
$
(8,056
)



Restricted Equity Securities

Restricted equity securities include stock we are required to hold as members of the Federal Reserve system and the Federal Home Loan Banks ("FHLB"). Restricted equity securities are carried at cost as these securities do not have a readily determined fair value because ownership of these shares are restricted and lacks a market. A summary of restricted equity securities follows (in thousands):

 
June 30, 2014
 
December 31, 2013
 
June 30, 2013
Federal Reserve stock
$
33,971

 
$
33,742

 
$
33,695

Federal Home Loan Bank stock
57,242

 
51,498

 
124,152

Total
$
91,213

 
$
85,240

 
$
157,847

Derivatives
Derivatives [Text Block]
(3) Derivatives
 
Derivative instruments may be used by the Company as part of its interest rate risk management programs or may be offered to customers. All derivative instruments are carried at fair value and changes in fair value are reported in earnings as they occur. Credit risk is also considered in determining fair value.

When bilateral netting agreements or similar arrangements exist between the Company and its counterparties that create a single legal claim or obligation to pay or receive the net amount in settlement of the individual derivative contracts, the Company reports derivative assets and liabilities on a net by derivative contract type by counterparty basis.

Derivative contracts may require the Company to provide or receive cash margin as collateral for derivative assets and liabilities. Derivative assets and liabilities are reported net of cash margin when certain conditions are met. In addition, derivative contracts executed with customers under Customer Risk Management Programs may be secured by non-cash collateral in conjunction with a credit agreement with that customer. Access to collateral, in the event of default is reasonably assured. As of June 30, 2014, a decrease in BOK Financial's credit rating to below investment grade would increase our obligation to post cash margin on existing contracts by approximately $21 million.
 
None of these derivative contracts have been designated as hedging instruments.

Customer Risk Management Programs
 
BOK Financial offers programs to permit its customers to manage various risks, including fluctuations in energy, cattle and other agricultural products, and foreign exchange rates, or to take positions in derivative contracts. Customers may also manage interest rate risk through interest rate swaps used by borrowers to modify interest rate terms of their loans or to-be-announced securities used by mortgage banking customers to hedge their loan production. Derivative contracts are executed between the customers and BOK Financial. Offsetting contracts are executed between BOK Financial and other selected counterparties to minimize the risk of changes in commodity prices, interest rates or foreign exchange rates. The counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to BOK Financial as profit and compensation for administrative costs and credit risk which is recognized over the life of the contracts and included in other operating revenue – brokerage and trading revenue in the Consolidated Statements of Earnings.
 
Interest Rate Risk Management Programs
 
BOK Financial may use derivative contracts in managing its interest rate sensitivity and as part of its economic hedge of the change in the fair value of mortgage servicing rights. Interest rate swaps are generally used to reduce overall asset sensitivity by converting specific fixed-rate liabilities to floating-rate based on LIBOR. As of June 30, 2014, BOK Financial had interest rate swaps with a notional value of $47 million used as part of the economic hedge of the change in the fair value of the mortgage servicing rights.

As discussed in Note 6, certain derivative contracts not designated as hedging instruments related to mortgage loan commitments and forward sales contracts are included in Residential mortgage loans held for sale on the Consolidated Balance Sheets. See Note 6 for additional discussion of notional, fair value and impact on earnings of these contracts. Forward sales contracts are not considered swaps under the Commodity and Futures Trading Commission final rules.


The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at June 30, 2014 (in thousands):
 
 
Assets
 
 
Notional1
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
14,576,481

 
$
134,411

 
$
(53,746
)
 
$
80,665

 
$
—

 
$
80,665

Interest rate swaps
 
1,266,228

 
39,974

 
—

 
39,974

 
—

 
39,974

Energy contracts
 
1,063,840

 
67,831

 
(23,169
)
 
44,662

 
—

 
44,662

Agricultural contracts
 
36,050

 
2,528

 
(223
)
 
2,305

 
—

 
2,305

Foreign exchange contracts
 
242,866

 
174,802

 
—

 
174,802

 
—

 
174,802

Equity option contracts
 
205,904

 
16,962

 
—

 
16,962

 
(1,690
)
 
15,272

Total customer risk management programs
 
17,391,369

 
436,508

 
(77,138
)
 
359,370

 
(1,690
)
 
357,680

Interest rate risk management programs
 
—

 
—

 
—

 
—

 
—

 
—

Total derivative contracts
 
$
17,391,369

 
$
436,508

 
$
(77,138
)
 
$
359,370

 
$
(1,690
)
 
$
357,680

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
Notional¹
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
14,734,106

 
$
131,256

 
$
(53,746
)
 
$
77,510

 
$
—

 
$
77,510

Interest rate swaps
 
1,266,228

 
40,218

 
—

 
40,218

 
(19,700
)
 
20,518

Energy contracts
 
1,049,835

 
66,742

 
(23,169
)
 
43,573

 
(36,355
)
 
7,218

Agricultural contracts
 
36,036

 
2,538

 
(223
)
 
2,315

 
(2,298
)
 
17

Foreign exchange contracts
 
242,791

 
174,477

 
—

 
174,477

 
(680
)
 
173,797

Equity option contracts
 
205,904

 
16,962

 
—

 
16,962

 
—

 
16,962

Total customer risk management programs
 
17,534,900

 
432,193

 
(77,138
)
 
355,055

 
(59,033
)
 
296,022

Interest rate risk management programs
 
47,000

 
1,829

 
—

 
1,829

 
—

 
1,829

Total derivative contracts
 
$
17,581,900

 
$
434,022

 
$
(77,138
)
 
$
356,884

 
$
(59,033
)
 
$
297,851

1 
Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract.


The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at December 31, 2013 (in thousands):

 
 
Assets
 
 
Notional
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
10,817,159

 
$
102,921

 
$
(46,623
)
 
$
56,298

 
$
—

 
$
56,298

Interest rate swaps
 
1,283,379

 
44,124

 
—

 
44,124

 
(731
)
 
43,393

Energy contracts
 
1,263,266

 
48,078

 
(29,957
)
 
18,121

 
(2,575
)
 
15,546

Agricultural contracts
 
100,886

 
2,060

 
(1,166
)
 
894

 
—

 
894

Foreign exchange contracts
 
136,543

 
136,543

 
—

 
136,543

 
(2,147
)
 
134,396

Equity option contracts
 
210,816

 
17,957

 
—

 
17,957

 
(3,472
)
 
14,485

Total customer risk management programs
 
13,812,049

 
351,683

 
(77,746
)
 
273,937

 
(8,925
)
 
265,012

Interest rate risk management programs
 
—

 
—

 
—

 
—

 
—

 
—

Total derivative contracts
 
$
13,812,049

 
$
351,683

 
$
(77,746
)
 
$
273,937

 
$
(8,925
)
 
$
265,012

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
Notional
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
10,982,049

 
$
99,830

 
$
(46,623
)
 
$
53,207

 
$
—

 
$
53,207

Interest rate swaps
 
1,283,379

 
44,377

 
—

 
44,377

 
(17,853
)
 
26,524

Energy contracts
 
1,216,426

 
46,095

 
(29,957
)
 
16,138

 
(6,055
)
 
10,083

Agricultural contracts
 
99,191

 
2,009

 
(1,166
)
 
843

 
—

 
843

Foreign exchange contracts
 
135,237

 
135,237

 
—

 
135,237

 
(294
)
 
134,943

Equity option contracts
 
210,816

 
17,957

 
—

 
17,957

 
—

 
17,957

Total customer risk management programs
 
13,927,098

 
345,505

 
(77,746
)
 
267,759

 
(24,202
)
 
243,557

Interest rate risk management programs
 
47,000

 
3,628

 
—

 
3,628

 
—

 
3,628

Total derivative contracts
 
$
13,974,098

 
$
349,133

 
$
(77,746
)
 
$
271,387

 
$
(24,202
)
 
$
247,185

1 
Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract.




The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at June 30, 2013 (in thousands):
 
 
Assets
 
 
Notional1
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
16,351,395

 
$
545,290

 
$
(268,087
)
 
$
277,203

 
$
—

 
$
277,203

Interest rate swaps
 
1,381,836

 
51,745

 
—

 
51,745

 
—

 
51,745

Energy contracts
 
1,501,959

 
65,414

 
(35,376
)
 
30,038

 
(2,537
)
 
27,501

Agricultural contracts
 
207,439

 
5,871

 
(4,658
)
 
1,213

 
—

 
1,213

Foreign exchange contracts
 
177,643

 
177,643

 
—

 
177,643

 
—

 
177,643

Equity option contracts
 
211,595

 
13,469

 
—

 
13,469

 
(2,568
)
 
10,901

Total customer risk management programs
 
19,831,867

 
859,432

 
(308,121
)
 
551,311

 
(5,105
)
 
546,206

Interest rate risk management programs
 
—

 
—

 
—

 
—

 
—

 
—

Total derivative contracts
 
$
19,831,867

 
$
859,432

 
$
(308,121
)
 
$
551,311

 
$
(5,105
)
 
$
546,206

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
Notional1
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
16,439,531

 
$
540,540

 
$
(268,087
)
 
$
272,453

 
$
—

 
$
272,453

Interest rate swaps
 
1,381,836

 
52,095

 
—

 
52,095

 
(19,381
)
 
32,714

Energy contracts
 
1,441,957

 
63,515

 
(35,376
)
 
28,139

 
(5,865
)
 
22,274

Agricultural contracts
 
207,329

 
5,824

 
(4,658
)
 
1,166

 
—

 
1,166

Foreign exchange contracts
 
177,187

 
177,187

 
—

 
177,187

 
—

 
177,187

Equity option contracts
 
211,595

 
13,469

 
—

 
13,469

 
—

 
13,469

Total customer risk management programs
 
19,859,435

 
852,630

 
(308,121
)
 
544,509

 
(25,246
)
 
519,263

Interest rate risk management programs
 
47,000

 
2,728

 
—

 
2,728

 
—

 
2,728

Total derivative contracts
 
$
19,906,435

 
$
855,358

 
$
(308,121
)
 
$
547,237

 
$
(25,246
)
 
$
521,991

1 
Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract.






The following summarizes the pre-tax net gains (losses) on derivative instruments and where they are recorded in the income statement (in thousands):
 
 
Three Months Ended
 
 
June 30, 2014
 
June 30, 2013
 
 
Brokerage
and Trading Revenue
 
Gain (Loss)
on Derivatives, Net
 
Brokerage
and Trading
Revenue
 
Gain (Loss)
on Derivatives,
Net
Customer Risk Management Programs:
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
224

 
$
—

 
$
1,716

 
$
—

Interest rate swaps
 
524

 
—

 
768

 
—

Energy contracts
 
2,613

 
—

 
2,436

 
—

Agricultural contracts
 
38

 
—

 
77

 
—

Foreign exchange contracts
 
333

 
—

 
172

 
—

Equity option contracts
 
—

 
—

 
—

 
—

Total customer risk management programs
 
3,732

 
—

 
5,169

 
—

Interest Rate Risk Management Programs
 
—

 
831

 
—

 
(2,527
)
Total Derivative Contracts
 
$
3,732

 
$
831

 
$
5,169

 
$
(2,527
)


 
 
Six Months Ended
 
 
June 30, 2014
 
June 30, 2013
 
 
Brokerage
and Trading Revenue
 
Gain (Loss)
on Derivatives, Net
 
Brokerage
and Trading
Revenue
 
Gain (Loss)
on Derivatives,
Net
Customer Risk Management Programs:
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
64

 
$
—

 
$
1,701

 
$
—

Interest rate swaps
 
1,031

 
—

 
1,535

 
—

Energy contracts
 
3,484

 
—

 
4,219

 
—

Agricultural contracts
 
101

 
—

 
185

 
—

Foreign exchange contracts
 
552

 
—

 
360

 
—

Equity option contracts
 
—

 
—

 
—

 
—

Total customer risk management programs
 
5,232

 
—

 
8,000

 
—

Interest Rate Risk Management Programs
 
—

 
1,799

 
—

 
(3,468
)
Total Derivative Contracts
 
$
5,232

 
$
1,799

 
$
8,000

 
$
(3,468
)


Net interest revenue was not significantly impacted by the settlement of amounts receivable or payable on interest rate swaps for the three and six months ended June 30, 2014 and 2013, respectively.
Loans and Allowances for Credit Losses
Loans [Text Block]
(4) Loans and Allowances for Credit Losses

Loans

Loans are either secured or unsecured based on the type of loan and the financial condition of the borrower. Repayment is generally expected from cash flow or proceeds from the sale of selected assets of the borrower. BOK Financial is exposed to risk of loss on loans due to the borrower’s difficulties, which may arise from any number of factors, including problems within the respective industry or local economic conditions. Access to collateral, in the event of borrower default, is reasonably assured through adherence to applicable lending laws and through sound lending standards and credit review procedures. Accounting policies for all loans, excluding residential mortgage loans guaranteed by U.S. government agencies, are as follows.

Interest is accrued at the applicable interest rate on the principal amount outstanding. Loans are placed on nonaccruing status when, in the opinion of management, full collection of principal or interest is uncertain. Internally risk graded loans are individually evaluated for nonaccruing status quarterly. Non-risk graded loans are generally placed on nonaccruing status when more than 90 days past due or within 60 days of being notified of the borrower's bankruptcy filing. Interest previously accrued but not collected is charged against interest income when the loan is placed on nonaccruing status. Payments on nonaccruing loans are applied to principal or recognized as interest income, according to management’s judgment as to the collectability of principal. Loans may be returned to accruing status when, in the opinion of management, full collection of principal and interest, including principal previously charged off, is probable based on improvements in the borrower’s financial condition or a sustained period of performance.

Loans to borrowers experiencing financial difficulties may be modified in troubled debt restructurings ("TDRs"). All TDRs are classified as nonaccruing. Modifications generally consist of extension of payment terms or interest rate concessions and may result either voluntarily through negotiations with the borrower or involuntarily through court order. Generally, principal and accrued but unpaid interest is not voluntarily forgiven.

Performing loans may be renewed under then current collateral value, debt service ratio and other underwriting standards. Nonaccruing loans may be renewed and will remain classified as nonaccruing. 

All loans are charged off when the loan balance or a portion of the loan balance is no longer supported by the paying capacity of the borrower or when the required cash flow is reduced in a TDR. The charge-off amount is determined through a quarterly evaluation of available cash resources and collateral value and charge-offs are taken in the quarter in which the loss is identified. Non-risk graded loans that are past due between 60 and 180 days, based on the loan product type, are charged off. Loans to borrowers whose personal obligation has been discharged through Chapter 7 bankruptcy proceedings are charged off within 60 days of notice of the bankruptcy filing, regardless of payment status.

Loan origination and commitment fees and direct loan acquisition and origination costs are deferred and amortized as an adjustment to yield over the life of the loan or over the commitment period, as applicable.

Qualifying residential mortgage loans guaranteed by U.S. government agencies have been sold into GNMA pools. Under certain performance conditions specified in government programs, the Company may have the right, but not the obligation to repurchase loans from GNMA pools. These loans no longer qualify for sale accounting and are recognized in the Consolidated Balance Sheets. Guaranteed loans are considered impaired because we do not expect to receive all principal and interest based on the loan's contractual terms. The principal balance continues to be guaranteed; however, interest accrues at a curtailed rate as specified in the programs. The carrying value of these loans is reduced based on an estimate of the expected cash flows discounted at the original note rate plus a liquidity spread. Guaranteed loans may be modified in TDRs in accordance with U.S. government agency guidelines. Interest continues to accrue based on the modified rate. Guaranteed loans may either be resold into GNMA pools after a performance period specified by the programs or foreclosed and conveyed to the guarantors.

Loans are disaggregated into portfolio segments and further disaggregated into classes. The portfolio segment is the level at which the Company develops and documents a systematic method for determining its allowance for credit losses. Classes are a further disaggregation of portfolio segments based on the risk characteristics of the loans and the Company’s method for monitoring and assessing credit risk. 

Portfolio segments of the loan portfolio are as follows (in thousands):

 
 
June 30, 2014
 
December 31, 2013
 
 
Fixed
Rate
 
Variable
Rate
 
Non-accrual
 
Total
 
Fixed
Rate
 
Variable
Rate
 
Non-accrual
 
Total
Commercial
 
$
1,681,348

 
$
6,669,210

 
$
17,103

 
$
8,367,661

 
$
1,637,620

 
$
6,288,841

 
$
16,760

 
$
7,943,221

Commercial real estate
 
744,101

 
1,876,405

 
34,472

 
2,654,978

 
770,908

 
1,603,595

 
40,850

 
2,415,353

Residential mortgage
 
1,753,186

 
210,689

 
44,340

 
2,008,215

 
1,783,615

 
226,092

 
42,319

 
2,052,026

Consumer
 
115,185

 
280,054

 
765

 
396,004

 
135,494

 
244,950

 
1,220

 
381,664

Total
 
$
4,293,820

 
$
9,036,358

 
$
96,680

 
$
13,426,858

 
$
4,327,637

 
$
8,363,478

 
$
101,149

 
$
12,792,264

Accruing loans past due (90 days)1
 
 

 
 

 
 

 
$
67

 
 

 
 

 
 

 
$
1,415

 
 
June 30, 2013
 
 
Fixed
Rate
 
Variable
Rate
 
Non-accrual
 
Total
Commercial
 
$
1,447,823

 
$
6,239,428

 
$
20,869

 
$
7,708,120

Commercial real estate
 
698,242

 
1,560,161

 
58,693

 
2,317,096

Residential mortgage
 
1,768,607

 
230,644

 
40,534

 
2,039,785

Consumer
 
142,737

 
231,007

 
2,037

 
375,781

Total
 
$
4,057,409

 
$
8,261,240

 
$
122,133

 
$
12,440,782

Accruing loans past due (90 days)1
 
 

 
 

 
 

 
$
2,460

1 
Excludes residential mortgage loans guaranteed by agencies of the U.S. government

At June 30, 2014, $4.4 billion or 33% of our total loan portfolio is to businesses and individuals attributed to the Texas market and $3.4 billion or 26% of the total loan portfolio is to businesses and individuals attributed to the Oklahoma market. These geographic concentrations subject the loan portfolio to the general economic conditions within these areas.

Commercial

Commercial loans represent loans for working capital, facilities acquisition or expansion, purchases of equipment and other needs of commercial customers primarily located within our geographical footprint. Commercial loans are underwritten individually and represent on-going relationships based on a thorough knowledge of the customer, the customer’s industry and market. While commercial loans are generally secured by the customer’s assets including real property, inventory, accounts receivable, operating equipment, interest in mineral rights and other property and may also include personal guarantees of the owners and related parties, the primary source of repayment of the loans is the on-going cash flow from operations of the customer’s business. Inherent lending risk is centrally monitored on a continuous basis from underwriting throughout the life of the loan for compliance with commercial lending policies.

At June 30, 2014, commercial loans attributed to the Texas market totaled $2.8 billion or 34% of the commercial loan portfolio segment and commercial loans attributed to the Oklahoma market totaled $2.0 billion or 24% of the commercial loan portfolio segment.

The commercial loan portfolio segment is further divided into loan classes. The energy loan class totaled $2.4 billion or 18% of total loans at June 30, 2014, including $2.1 billion of outstanding loans to energy producers. Approximately 59% of committed production loans are secured by properties primarily producing oil and 41% are secured by properties producing natural gas. The services loan class totaled $2.4 billion at June 30, 2014. Approximately $1.2 billion of loans in the services category consist of loans with individual balances of less than $10 million.  Businesses included in the services class include gaming, educational, public finance, insurance and community foundations.

Commercial Real Estate

Commercial real estate loans are for the construction of buildings or other improvements to real estate and property held by borrowers for investment purposes primarily within our geographical footprint. We require collateral values in excess of the loan amounts, demonstrated cash flows in excess of expected debt service requirements, equity investment in the project and a portion of the project already sold, leased or permanent financing already secured. The expected cash flows from all significant new or renewed income producing property commitments are stress tested to reflect the risks in varying interest rates, vacancy rates and rental rates. As with commercial loans, inherent lending risks are centrally monitored on a continuous basis from underwriting throughout the life of the loan for compliance with applicable lending policies.

At June 30, 2014, 33% of commercial real estate loans are secured by properties primarily located in the Dallas and Houston areas of Texas. An additional 17% of commercial real estate loans are secured by properties located primarily in the Tulsa and Oklahoma City metropolitan areas of Oklahoma. 

Residential Mortgage and Consumer

Residential mortgage loans provide funds for our customers to purchase or refinance their primary residence or to borrow against the equity in their home. Residential mortgage loans are secured by a first or second mortgage on the customer’s primary residence. Consumer loans include direct loans secured by and for the purchase of automobiles, recreational and marine equipment as well as other unsecured loans. Consumer loans also include indirect automobile loans made through primary dealers. Residential mortgage and consumer loans are made in accordance with underwriting policies we believe to be conservative and are fully documented. Credit scoring is assessed based on significant credit characteristics including credit history, residential and employment stability. Residential mortgage loans retained in the Company’s portfolio are primarily composed of various mortgage programs to support customer relationships including jumbo mortgage loans, non-builder construction loans and special loan programs for high net worth individuals and certain professionals. Jumbo loans may be fixed or variable rate and are fully amortizing. Jumbo loans generally conform to government sponsored entity standards, except that the loan size exceeds maximums required under these standards. These loans generally require a minimum FICO score of 720 and a maximum debt-to-income ratio (“DTI”) of 38%.  Loan-to-value (“LTV”) ratios are tiered from 60% to 100%, depending on the market. Special mortgage programs include fixed and variable fully amortizing loans tailored to the needs of certain healthcare professionals. Variable rate loans are fully indexed at origination and may have fixed rates for three to ten years, then adjust annually thereafter. 

At June 30, 2014, residential mortgage loans included $188 million of loans guaranteed by U.S. government agencies previously sold into GNMA mortgage pools. These loans either have been repurchased or are eligible to be repurchased by the Company when certain defined delinquency criteria are met. Although payments on these loans generally are past due more than 90 days, interest continues to accrue based on the government guarantee.

Home equity loans totaled $799 million at June 30, 2014. Approximately, 69% of the home equity loan portfolio is comprised of first lien loans and 31% of the home equity portfolio is comprised of junior lien loans. Junior lien loans are distributed 73% to amortizing term loans and 27% to revolving lines of credit. Home equity loans generally require a minimum FICO score of 700 and a maximum DTI of 40%. The maximum loan amount available for our home equity loan products is generally $400 thousand. Revolving loans have a 5 year revolving period followed by a 15 year term of amortizing repayments. Interest-only home equity loans may not be extended for any additional revolving time. All other home equity loans may be extended at management's discretion for an additional 5 year revolving term, subject to an update of certain credit information.

Credit Commitments
 
Commitments to extend credit are agreements to lend to a customer as long as there is no violation of conditions established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. At June 30, 2014, outstanding commitments totaled $7.5 billion. Because some commitments are expected to expire before being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. BOK Financial uses the same credit policies in making commitments as it does loans.

The amount of collateral obtained, if deemed necessary, is based upon management’s credit evaluation of the borrower.

Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Because the credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan commitments, BOK Financial uses the same credit policies in evaluating the creditworthiness of the customer. Additionally, BOK Financial uses the same evaluation process in obtaining collateral on standby letters of credit as it does for loan commitments. The term of these standby letters of credit is defined in each commitment and typically corresponds with the underlying loan commitment. At June 30, 2014, outstanding standby letters of credit totaled $469 million. Commercial letters of credit are used to facilitate customer trade transactions with the drafts being drawn when the underlying transaction is consummated. At June 30, 2014, outstanding commercial letters of credit totaled $11 million.

Allowances for Credit Losses

BOK Financial maintains an allowance for loan losses and an accrual for off-balance sheet credit risk. The accrual for off-balance sheet credit risk is maintained at a level that is appropriate to cover estimated losses associated with credit instruments that are not currently recognized as assets such as loan commitments, standby letters of credit or guarantees. As discussed in greater detail in Note 6, the Company also has separate accruals for off-balance sheet credit risk related to residential mortgage loans previously sold with full or partial recourse and for residential mortgage loans sold to government sponsored agencies under standard representations and warranties.

The appropriateness of the allowance for loan losses and accrual for off-balance sheet credit losses (collectively "allowance for credit losses") is assessed by management based on an on-going quarterly evaluation of the probable estimated losses inherent in the portfolio, including probable losses on both outstanding loans and unused commitments.

The allowance for loan losses consists of specific allowances attributed to impaired loans that have not yet been charged down to amounts we expect to recover, general allowances for unimpaired loans based on estimated loss rates by loan class and nonspecific allowances based on general economic conditions, risk concentration and related factors. There have been no material changes in the approach or techniques utilized in developing the allowance for loan losses and the accrual for off-balance sheet credit losses for the three and six months ended June 30, 2014.

Loans are considered to be impaired when it becomes probable that BOK Financial will be unable to collect all amounts due according to the contractual terms of the loan agreements. Internally risk graded loans are evaluated individually for impairment. Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk graded based on evaluation of the borrowers' ability to repay. Certain commercial loans and most residential mortgage and consumer loans are small balance, homogeneous pools of loans that are not risk graded. Non-risk graded loans are identified as impaired based on performance status. Generally, non-risk graded loans 90 days or more past due or modified in a TDR or in bankruptcy are considered to be impaired.

Specific allowances for impaired loans are measured by an evaluation of estimated future cash flows discounted at the loans’ initial effective interest rate or the fair value of collateral for certain collateral dependent loans. Collateral value of real property is generally based on third party appraisals that conform to Uniform Standards of Professional Appraisal Practice, less estimated selling costs. Appraised values are on an "as-is" basis and are generally not adjusted by the Company. Updated appraisals are obtained at least annually or more frequently if market conditions indicate collateral values have declined. Collateral value of mineral rights is generally determined by our internal staff of engineers based on projected cash flows under current market conditions. Collateral values and available cash resources that support impaired loans are evaluated quarterly. Historical statistics may be used as a practical way to estimate impairment in limited situations, such as when a collateral dependent loan is identified as impaired at the end of a reporting period, until an updated appraisal of collateral value is received or a full assessment of future cash flows is completed. Estimates of future cash flows and collateral values require significant judgments and may be volatile.

General allowances for unimpaired loans are based on estimated loss rates by loan class. The gross loss rate for each loan class is determined by the greater of the current gross loss rate based on the most recent twelve months or a ten-year gross loss rate. Recoveries are not directly considered in the estimation of loss rates. Recoveries generally do not follow predictable patterns and are not received until well after the charge-off date as a result of protracted legal actions. For risk graded loans, gross loss rates are adjusted for changes in risk grading. For each loan class, the current weighted average risk grade is compared to the long-term average risk grade. This comparison determines whether credit risk in each loan class is increasing or decreasing. Loss rates are adjusted upward or downward in proportion to changes in average risk grading. General allowances for unimpaired loans also consider inherent risks identified for each loan class. Inherent risks consider loss rates that most appropriately represent the current credit cycle and other factors attributable to specific loan classes which have not yet been represented in the gross loss rates or risk grading. These factors include changes in commodity prices or engineering imprecision, which may affect the value of reserves that secure our energy loan portfolio, construction risk that may affect commercial real estate loans, changes in regulations and public policy that may disproportionately impact health care loans and changes in loan products.

Nonspecific allowances are maintained for risks beyond factors specific to a particular loan or loan class. These factors include trends in the economy of our primary lending areas, concentrations in large balance loans and other relevant factors.

An accrual for off-balance sheet credit losses is included in Other liabilities in the Consolidated Balance Sheets. The appropriateness of this accrual is determined in the same manner as the allowance for loan losses.

A provision for credit losses is charged against or credited to earnings in amounts necessary to maintain an appropriate allowance for credit losses. Recoveries of loans previously charged off are added to the allowance when received.

The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended June 30, 2014 is summarized as follows (in thousands):
 
 
Commercial
 
Commercial Real Estate
 
Residential Mortgage
 
Consumer
 
Nonspecific Allowance
 
Total
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
85,246

 
$
41,589

 
$
28,307

 
$
6,211

 
$
26,965

 
$
188,318

Provision for loan losses
 
1,393

 
(2,958
)
 
467

 
1,484

 
(16
)
 
370

Loans charged off
 
(29
)
 
—

 
(1,842
)
 
(1,651
)
 
—

 
(3,522
)
Recoveries
 
1,196

 
2,621

 
722

 
985

 
—

 
5,524

Ending balance
 
$
87,806

 
$
41,252

 
$
27,654

 
$
7,029

 
$
26,949

 
$
190,690

Allowance for off-balance sheet credit losses:
 
 

 
 

 
 

 
 

 
 

 
 

Beginning balance
 
$
576

 
$
1,040

 
$
62

 
$
—

 
$
—

 
$
1,678

Provision for off-balance sheet credit losses
 
(231
)
 
(138
)
 
(19
)
 
18

 
—

 
(370
)
Ending balance
 
$
345

 
$
902

 
$
43

 
$
18

 
$
—

 
$
1,308

 
 
 
 
 
 
 
 
 
 
 
 
 
Total provision for credit losses
 
$
1,162

 
$
(3,096
)
 
$
448

 
$
1,502

 
$
(16
)
 
$
—


The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the six months ended June 30, 2014 is summarized as follows (in thousands):
 
 
Commercial
 
Commercial Real Estate
 
Residential Mortgage
 
Consumer
 
Nonspecific Allowance
 
Total
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
79,180

 
$
41,573

 
$
29,465

 
$
6,965

 
$
28,213

 
$
185,396

Provision for loan losses
 
5,618

 
(4,549
)
 
(49
)
 
1,024

 
(1,264
)
 
780

Loans charged off
 
(173
)
 
(220
)
 
(2,838
)
 
(3,139
)
 
—

 
(6,370
)
Recoveries
 
3,181

 
4,448

 
1,076

 
2,179

 
—

 
10,884

Ending balance
 
$
87,806

 
$
41,252

 
$
27,654

 
$
7,029

 
$
26,949

 
$
190,690

Allowance for off-balance sheet credit losses:
 
 

 
 

 
 

 
 

 
 

 
 

Beginning balance
 
$
119

 
$
1,876

 
$
90

 
$
3

 
$
—

 
$
2,088

Provision for off-balance sheet credit losses
 
226

 
(974
)
 
(47
)
 
15

 
—

 
(780
)
Ending balance
 
$
345

 
$
902

 
$
43

 
$
18

 
$
—

 
$
1,308

 
 
 
 
 
 
 
 
 
 
 
 
 
Total provision for credit losses
 
$
5,844

 
$
(5,523
)
 
$
(96
)
 
$
1,039

 
$
(1,264
)
 
$
—



The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended June 30, 2013 is summarized as follows (in thousands):
 
 
Commercial
 
Commercial Real Estate
 
Residential Mortgage
 
Consumer
 
Nonspecific Allowance
 
Total
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
66,419

 
$
48,528

 
$
40,222

 
$
7,984

 
$
42,812

 
$
205,965

Provision for loan losses
 
223

 
(1,118
)
 
597

 
162

 
(363
)
 
(499
)
Loans charged off
 
(4,538
)
 
(450
)
 
(2,057
)
 
(1,507
)
 
—

 
(8,552
)
Recoveries
 
1,940

 
2,727

 
444

 
1,099

 
—

 
6,210

Ending balance
 
$
64,044

 
$
49,687

 
$
39,206

 
$
7,738

 
$
42,449

 
$
203,124

Allowance for off-balance sheet credit losses:
 
 

 
 

 
 

 
 

 
 

 
 

Beginning balance
 
$
405

 
$
618

 
$
72

 
$
10

 
$
—

 
$
1,105

Provision for off-balance sheet credit losses
 
(3
)
 
560

 
(66
)
 
8

 
—

 
499

Ending balance
 
$
402

 
$
1,178

 
$
6

 
$
18

 
$
—

 
$
1,604

 
 
 
 
 
 
 
 
 
 
 
 
 
Total provision for credit losses
 
$
220

 
$
(558
)
 
$
531

 
$
170

 
$
(363
)
 
$
—


The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the six months ended June 30, 2013 is summarized as follows (in thousands):
 
 
Commercial
 
Commercial Real Estate
 
Residential Mortgage
 
Consumer
 
Nonspecific Allowance
 
Total
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
65,280

 
$
54,884

 
$
41,703

 
$
9,453

 
$
44,187

 
$
215,507

Provision for loan losses
 
(1,733
)
 
(3,798
)
 
323

 
(743
)
 
(1,738
)
 
(7,689
)
Loans charged off
 
(4,836
)
 
(5,250
)
 
(3,836
)
 
(3,539
)
 
—

 
(17,461
)
Recoveries
 
5,333

 
3,851

 
1,016

 
2,567

 
—

 
12,767

Ending balance
 
$
64,044

 
$
49,687

 
$
39,206

 
$
7,738

 
$
42,449

 
$
203,124

Allowance for off-balance sheet credit losses:
 
 

 
 

 
 

 
 

 
 

 
 

Beginning balance
 
$
475

 
$
1,353

 
$
78

 
$
9

 
$
—

 
$
1,915

Provision for off-balance sheet credit losses
 
(73
)
 
(175
)
 
(72
)
 
9

 
—

 
(311
)
Ending balance
 
$
402

 
$
1,178

 
$
6

 
$
18

 
$
—

 
$
1,604

 
 
 
 
 
 
 
 
 
 
 
 
 
Total provision for credit losses
 
$
(1,806
)
 
$
(3,973
)
 
$
251

 
$
(734
)
 
$
(1,738
)
 
$
(8,000
)


The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at June 30, 2014 is as follows (in thousands):

 
 
Collectively Measured
for Impairment
 
Individually Measured
for Impairment
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
8,350,558

 
$
84,639

 
$
17,103

 
$
3,167

 
$
8,367,661

 
$
87,806

Commercial real estate
 
2,620,506

 
41,069

 
34,472

 
183

 
2,654,978

 
41,252

Residential mortgage
 
1,963,875

 
27,571

 
44,340

 
83

 
2,008,215

 
27,654

Consumer
 
395,239

 
7,029

 
765

 
—

 
396,004

 
7,029

Total
 
13,330,178

 
160,308

 
96,680

 
3,433

 
13,426,858

 
163,741

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
26,949

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
13,330,178

 
$
160,308

 
$
96,680

 
$
3,433

 
$
13,426,858

 
$
190,690



The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at December 31, 2013 is as follows (in thousands):

 
 
Collectively Measured
for Impairment
 
Individually Measured
for Impairment
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
7,926,461

 
$
78,607

 
$
16,760

 
$
573

 
$
7,943,221

 
$
79,180

Commercial real estate
 
2,374,503

 
41,440

 
40,850

 
133

 
2,415,353

 
41,573

Residential mortgage
 
2,010,483

 
29,217

 
41,543

 
248

 
2,052,026

 
29,465

Consumer
 
380,445

 
6,965

 
1,219

 
—

 
381,664

 
6,965

Total
 
12,691,892

 
156,229

 
100,372

 
954

 
12,792,264

 
157,183

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
28,213

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
12,691,892

 
$
156,229

 
$
100,372

 
$
954

 
$
12,792,264

 
$
185,396



The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at June 30, 2013 is as follows (in thousands):

 
 
Collectively Measured
for Impairment
 
Individually Measured
for Impairment
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
7,687,251

 
$
63,492

 
$
20,869

 
$
552

 
$
7,708,120

 
$
64,044

Commercial real estate
 
2,258,403

 
48,493

 
58,693

 
1,194

 
2,317,096

 
49,687

Residential mortgage
 
1,999,334

 
39,028

 
40,451

 
178

 
2,039,785

 
39,206

Consumer
 
373,744

 
7,618

 
2,037

 
120

 
375,781

 
7,738

Total
 
12,318,732

 
158,631

 
122,050

 
2,044

 
12,440,782

 
160,675

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
42,449

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
12,318,732

 
$
158,631

 
$
122,050

 
$
2,044

 
$
12,440,782

 
$
203,124

Credit Quality Indicators

The Company utilizes loan class and risk grading as primary credit quality indicators. Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk graded based on a quarterly evaluation of the borrowers’ ability to repay the loans. Certain commercial loans and most residential mortgage and consumer loans are small, homogeneous pools that are not risk graded. 

The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at June 30, 2014 is as follows (in thousands):

 
 
Internally Risk Graded
 
Non-Graded
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
8,341,114

 
$
86,893

 
$
26,547

 
$
913

 
$
8,367,661

 
$
87,806

Commercial real estate
 
2,654,978

 
41,252

 
—

 
—

 
2,654,978

 
41,252

Residential mortgage
 
203,097

 
4,169

 
1,805,118

 
23,485

 
2,008,215

 
27,654

Consumer
 
295,762

 
2,980

 
100,242

 
4,049

 
396,004

 
7,029

Total
 
11,494,951

 
135,294

 
1,931,907

 
28,447

 
13,426,858

 
163,741

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
26,949

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
11,494,951

 
$
135,294

 
$
1,931,907

 
$
28,447

 
$
13,426,858

 
$
190,690

 
The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at December 31, 2013 is as follows (in thousands):

 
 
Internally Risk Graded
 
Non-Graded
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
7,888,219

 
$
78,250

 
$
55,002

 
$
930

 
$
7,943,221

 
$
79,180

Commercial real estate
 
2,415,353

 
41,573

 
—

 
—

 
2,415,353

 
41,573

Residential mortgage
 
220,635

 
5,481

 
1,831,391

 
23,984

 
2,052,026

 
29,465

Consumer
 
265,533

 
2,657

 
116,131

 
4,308

 
381,664

 
6,965

Total
 
10,789,740

 
127,961

 
2,002,524

 
29,222

 
12,792,264

 
157,183

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
28,213

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
10,789,740

 
$
127,961

 
$
2,002,524

 
$
29,222

 
$
12,792,264

 
$
185,396


The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at June 30, 2013 is as follows (in thousands):

 
 
Internally Risk Graded
 
Non-Graded
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
7,689,954

 
$
62,830

 
$
18,166

 
$
1,214

 
$
7,708,120

 
$
64,044

Commercial real estate
 
2,317,096

 
49,687

 
—

 
—

 
2,317,096

 
49,687

Residential mortgage
 
230,359

 
3,753

 
1,809,426

 
35,453

 
2,039,785

 
39,206

Consumer
 
243,384

 
2,316

 
132,397

 
5,422

 
375,781

 
7,738

Total
 
10,480,793

 
118,586

 
1,959,989

 
42,089

 
12,440,782

 
160,675

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
42,449

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
10,480,793

 
$
118,586

 
$
1,959,989

 
$
42,089

 
$
12,440,782

 
$
203,124



Loans are considered to be performing if they are in compliance with the original terms of the agreement, which is consistent with the regulatory guideline of “pass.” Performing also includes loans considered to be “other loans especially mentioned” by regulatory guidelines. Other loans especially mentioned are in compliance with the original terms of the agreement but may have a weakness that deserves management’s close attention. Performing loans also include past due residential mortgages that are guaranteed by agencies of the U.S. government.

The risk grading process identified certain criticized loans as potential problem loans. These loans have a well-defined weakness (e.g. inadequate debt service coverage or liquidity or marginal capitalization; repayment may depend on collateral or other risk mitigation) that may jeopardize liquidation of the debt and represent a greater risk due to deterioration in the financial condition of the borrower. This is consistent with the regulatory guideline for “substandard.” Because the borrowers are still performing in accordance with the original terms of the loan agreements, these loans were not placed in nonaccruing status. Known information does, however, cause concern as to the borrowers’ continued compliance with current repayment terms. Nonaccruing loans represent loans for which full collection of principal and interest is uncertain. This is substantially the same criteria used to determine whether a loan is impaired and includes certain loans considered “substandard” and all loans considered “doubtful” by regulatory guidelines.

The following table summarizes the Company’s loan portfolio at June 30, 2014 by the risk grade categories (in thousands): 
 
 
Internally Risk Graded
 
Non-Graded
 
 
 
 
Performing
 
Potential Problem
 
Nonaccrual
 
Performing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,395,942

 
$
22,227

 
$
1,619

 
$
—

 
$
—

 
$
2,419,788

Services
 
2,352,450

 
20,946

 
3,669

 
—

 
—

 
2,377,065

Wholesale/retail
 
1,307,426

 
4,840

 
5,885

 
—

 
—

 
1,318,151

Manufacturing
 
442,493

 
6,866

 
3,507

 
—

 
—

 
452,866

Healthcare
 
1,385,395

 
7,339

 
1,422

 
—

 
—

 
1,394,156

Other commercial and industrial
 
374,556

 
3,593

 
939

 
26,485

 
62

 
405,635

Total commercial
 
8,258,262

 
65,811

 
17,041

 
26,485

 
62

 
8,367,661

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
152,228

 
17,405

 
15,146

 
—

 
—

 
184,779

Retail
 
636,332

 
1,579

 
4,199

 
—

 
—

 
642,110

Office
 
389,487

 
1,139

 
3,591

 
—

 
—

 
394,217

Multifamily
 
663,349

 
14,054

 
—

 
—

 
—

 
677,403

Industrial
 
341,449

 
—

 
631

 
—

 
—

 
342,080

Other commercial real estate
 
400,709

 
2,775

 
10,905

 
—

 
—

 
414,389

Total commercial real estate
 
2,583,554

 
36,952

 
34,472

 
—

 
—

 
2,654,978

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
197,005

 
2,187

 
3,905

 
788,784

 
29,047

 
1,020,928

Permanent mortgages guaranteed by U.S. government agencies
 
—

 
—

 
—

 
186,140

 
1,947

 
188,087

Home equity
 
—

 
—

 
—

 
789,759

 
9,441

 
799,200

Total residential mortgage
 
197,005

 
2,187

 
3,905

 
1,764,683

 
40,435

 
2,008,215

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
295,552

 
25

 
185

 
99,662

 
580

 
396,004

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
11,334,373

 
$
104,975

 
$
55,603

 
$
1,890,830

 
$
41,077

 
$
13,426,858


The following table summarizes the Company’s loan portfolio at December 31, 2013 by the risk grade categories (in thousands): 
 
 
Internally Risk Graded
 
Non-Graded
 
 
 
 
Performing
 
Potential Problem
 
Nonaccrual
 
Performing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,347,519

 
$
2,381

 
$
1,860

 
$
—

 
$
—

 
$
2,351,760

Services
 
2,265,984

 
11,304

 
4,922

 
—

 
—

 
2,282,210

Wholesale/retail
 
1,191,791

 
2,604

 
6,969

 
—

 
—

 
1,201,364

Manufacturing
 
381,794

 
9,365

 
592

 
—

 
—

 
391,751

Healthcare
 
1,272,626

 
34

 
1,586

 
—

 
—

 
1,274,246

Other commercial and industrial
 
381,394

 
4,736

 
758

 
54,929

 
73

 
441,890

Total commercial
 
7,841,108

 
30,424

 
16,687

 
54,929

 
73

 
7,943,221

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
173,488

 
15,393

 
17,377

 
—

 
—

 
206,258

Retail
 
579,506

 
1,684

 
4,857

 
—

 
—

 
586,047

Office
 
403,951

 
1,157

 
6,391

 
—

 
—

 
411,499

Multifamily
 
562,800

 
13,695

 
7

 
—

 
—

 
576,502

Industrial
 
243,625

 
—

 
252

 
—

 
—

 
243,877

Other commercial real estate
 
371,628

 
7,576

 
11,966

 
—

 
—

 
391,170

Total commercial real estate
 
2,334,998

 
39,505

 
40,850

 
—

 
—

 
2,415,353

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
210,142

 
3,283

 
7,210

 
815,040

 
27,069

 
1,062,744

Permanent mortgages guaranteed by U.S. government agencies
 
—

 
—

 
—

 
180,821

 
777

 
181,598

Home equity
 
—

 
—

 
—

 
800,420

 
7,264

 
807,684

Total residential mortgage
 
210,142

 
3,283

 
7,210

 
1,796,281

 
35,110

 
2,052,026

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
264,536

 
795

 
202

 
115,114

 
1,017

 
381,664

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
10,650,784

 
$
74,007

 
$
64,949

 
$
1,966,324

 
$
36,200

 
$
12,792,264


The following table summarizes the Company’s loan portfolio at June 30, 2013 by the risk grade categories (in thousands): 
 
 
Internally Risk Graded
 
Non-Graded
 
 
 
 
Performing
 
Potential Problem
 
Nonaccrual
 
Performing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,378,187

 
$
4,282

 
$
2,277

 
$
—

 
$
—

 
$
2,384,746

Services
 
2,170,695

 
26,110

 
7,448

 
—

 
—

 
2,204,253

Wholesale/retail
 
1,167,215

 
1,628

 
6,700

 
—

 
—

 
1,175,543

Manufacturing
 
381,729

 
3,528

 
876

 
—

 
—

 
386,133

Healthcare
 
1,116,089

 
51

 
2,670

 
—

 
—

 
1,118,810

Other commercial and industrial
 
410,237

 
9,395

 
837

 
18,105

 
61

 
438,635

Total commercial
 
7,624,152

 
44,994

 
20,808

 
18,105

 
61

 
7,708,120

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
184,216

 
20,303

 
21,135

 
—

 
—

 
225,654

Retail
 
540,872

 
4,134

 
8,406

 
—

 
—

 
553,412

Office
 
450,790

 
940

 
7,828

 
—

 
—

 
459,558

Multifamily
 
491,864

 
2,141

 
6,447

 
—

 
—

 
500,452

Industrial
 
253,732

 
258

 
—

 
—

 
—

 
253,990

Other commercial real estate
 
296,864

 
12,289

 
14,877

 
—

 
—

 
324,030

Total commercial real estate
 
2,218,338

 
40,065

 
58,693

 
—

 
—

 
2,317,096

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
219,222

 
4,789

 
6,348

 
839,113

 
26,399

 
1,095,871

Permanent mortgages guaranteed by U.S. government agencies
 
—

 
—

 
—

 
156,804

 
83

 
156,887

Home equity
 
—

 
—

 
—

 
779,323

 
7,704

 
787,027

Total residential mortgage
 
219,222

 
4,789

 
6,348

 
1,775,240

 
34,186

 
2,039,785

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
242,059

 
930

 
395

 
130,755

 
1,642

 
375,781

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
10,303,771

 
$
90,778

 
$
86,244

 
$
1,924,100

 
$
35,889

 
$
12,440,782




Impaired Loans

Loans are considered to be impaired when it is probable that the Company will not be able to collect all amounts due according to the contractual terms of the loan agreement. This includes all nonaccruing loans, all loans modified in a TDR and all loans repurchased from GNMA pools.

A summary of impaired loans follows (in thousands):
 
As of
 
For the
 
For the
 
June 30, 2014
 
Three Months Ended
 
Six Months Ended
 
 
 
Recorded Investment
 
 
 
June 30, 2014
 
June 30, 2014
 
Unpaid
Principal
Balance
 
Total
 
With No
Allowance
 
With Allowance
 
Related Allowance
 
Average Recorded
Investment
 
Interest Income Recognized
 
Average Recorded
Investment
 
Interest Income Recognized
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
1,646

 
$
1,619

 
$
1,619

 
$
—

 
$
—

 
$
1,689

 
$
—

 
$
1,739

 
$
—

Services
6,530

 
3,669

 
2,917

 
752

 
158

 
4,125

 
—

 
4,295

 
—

Wholesale/retail
10,966

 
5,885

 
5,853

 
32

 
9

 
6,369

 
—

 
6,427

 
—

Manufacturing
3,764

 
3,507

 
507

 
3,000

 
3,000

 
3,536

 
—

 
2,050

 
—

Healthcare
2,438

 
1,422

 
1,422

 
—

 
—

 
1,433

 
—

 
1,504

 
—

Other commercial and industrial
8,668

 
1,001

 
1,001

 
—

 
—

 
923

 
—

 
916

 
—

Total commercial
34,012

 
17,103

 
13,319

 
3,784

 
3,167

 
18,075

 
—

 
16,931

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
19,441

 
15,146

 
14,504

 
642

 
162

 
15,846

 
—

 
16,261

 
—

Retail
5,679

 
4,199

 
4,199

 
—

 
—

 
4,413

 
—

 
4,529

 
—

Office
6,039

 
3,591

 
3,588

 
3

 
3

 
4,946

 
—

 
4,991

 
—

Multifamily
—

 
—

 
—

 
—

 
—

 
—

 
—

 
3

 
—

Industrial
790

 
631

 
631

 
—

 
—

 
758

 
—

 
441

 
—

Other real estate loans
17,617

 
10,905

 
10,725

 
180

 
18

 
10,925

 
—

 
11,436

 
—

Total commercial real estate
49,566

 
34,472

 
33,647

 
825

 
183

 
36,888

 
—

 
37,661

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
41,646

 
32,952

 
32,817

 
135

 
83

 
34,647

 
293

 
33,615

 
638

Permanent mortgage guaranteed by U.S. government agencies1
194,178

 
188,087

 
188,087

 
—

 
—

 
187,505

 
2,054

 
187,247

 
4,190

Home equity
9,482

 
9,441

 
9,441

 
—

 
—

 
8,453

 
—

 
8,353

 
—

Total residential mortgage
245,306

 
230,480

 
230,345

 
135

 
83

 
230,605

 
2,347

 
229,215

 
4,828

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
781

 
765

 
765

 
—

 
—

 
870

 
—

 
992

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
329,665

 
$
282,820

 
$
278,076

 
$
4,744

 
$
3,433

 
$
286,438

 
$
2,347

 
$
284,799

 
$
4,828

1 
All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At June 30, 2014, $1.9 million of these loans were nonaccruing and $186 million were accruing based on the guarantee by U.S. government agencies.

Generally, no interest income is recognized on impaired loans until all principal balances, including amounts charged-off, are recovered.

A summary of impaired loans at December 31, 2013 follows (in thousands): 
 
 
 
 
Recorded Investment
 
 
 
 
Unpaid
Principal
Balance
 
Total
 
With No
Allowance
 
With Allowance
 
Related Allowance
Commercial:
 
 
 
 
 
 
 
 
 
 
Energy
 
$
1,860

 
$
1,860

 
$
1,860

 
$
—

 
$
—

Services
 
6,486

 
4,922

 
3,791

 
1,131

 
516

Wholesale/retail
 
11,009

 
6,969

 
6,937

 
32

 
9

Manufacturing
 
746

 
592

 
592

 
—

 
—

Healthcare
 
2,193

 
1,586

 
1,538

 
48

 
48

Other commercial and industrial
 
8,532

 
831

 
831

 
—

 
—

Total commercial
 
30,826

 
16,760

 
15,549

 
1,211

 
573

 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
20,804

 
17,377

 
17,050

 
327

 
107

Retail
 
6,133

 
4,857

 
4,857

 
—

 
—

Office
 
7,848

 
6,391

 
6,383

 
8

 
8

Multifamily
 
7

 
7

 
7

 
—

 
—

Industrial
 
252

 
252

 
252

 
—

 
—

Other real estate loans
 
14,593

 
11,966

 
11,779

 
187

 
18

Total commercial real estate
 
49,637

 
40,850

 
40,328

 
522

 
133

 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
41,870

 
34,279

 
33,869

 
410

 
248

Permanent mortgage guaranteed by U.S. government agencies1
 
188,436

 
181,598

 
181,598

 
—

 
—

Home equity
 
7,537

 
7,264

 
7,264

 
—

 
—

Total residential mortgage
 
237,843

 
223,141

 
222,731

 
410

 
248

 
 
 
 
 
 
 
 
 
 
 
Total consumer
 
1,228

 
1,219

 
1,219

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
Total
 
$
319,534

 
$
281,970

 
$
279,827

 
$
2,143

 
$
954

1 
All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At December 31, 2013, $777 thousand of these loans were nonaccruing and $181 million were accruing based on the guarantee by U.S. government agencies.

A summary of impaired loans at June 30, 2013 follows (in thousands): 
 
As of
 
For the
 
For the
 
As of June 30, 2013
 
Three Months Ended
 
Six Months Ended
 
 
 
Recorded Investment
 
 
 
June 30, 2013
 
June 30, 2013
 
Unpaid
Principal
Balance
 
Total
 
With No
Allowance
 
With Allowance
 
Related Allowance
 
Average Recorded
Investment
 
Interest Income Recognized
 
Average Recorded
Investment
 
Interest Income Recognized
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
2,277

 
$
2,277

 
$
2,277

 
$
—

 
$
—

 
$
2,327

 
$
—

 
$
2,369

 
$
—

Services
9,631

 
7,448

 
6,283

 
1,165

 
493

 
8,461

 
—

 
9,769

 
—

Wholesale/retail
10,916

 
6,700

 
6,656

 
44

 
11

 
4,470

 
—

 
4,889

 
—

Manufacturing
1,168

 
876

 
876

 
—

 
—

 
1,362

 
—

 
1,442

 
—

Healthcare
3,357

 
2,670

 
2,622

 
48

 
48

 
2,816

 
—

 
2,918

 
—

Other commercial and industrial
8,398

 
898

 
898

 
—

 
—

 
930

 
—

 
1,283

 
—

Total commercial
35,747

 
20,869

 
19,612

 
1,257

 
552

 
20,366

 
—

 
22,670

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 

Residential construction and land development
24,752

 
21,135

 
20,841

 
294

 
102

 
22,299

 
—

 
23,633

 
—

Retail
9,827

 
8,406

 
8,406

 
—

 
—

 
8,664

 
—

 
8,262

 
—

Office
9,245

 
7,828

 
7,820

 
8

 
8

 
10,340

 
—

 
7,329

 
—

Multifamily
6,447

 
6,447

 
4,415

 
2,032

 
196

 
5,474

 
—

 
4,577

 
—

Industrial
—

 
—

 
—

 
—

 
—

 
1,099

 
—

 
1,984

 
—

Other real estate loans
17,196

 
14,877

 
13,113

 
1,764

 
888

 
14,060

 
—

 
13,876

 
—

Total commercial real estate
67,467

 
58,693

 
54,595

 
4,098

 
1,194

 
61,936

 
—

 
59,661

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 

Permanent mortgage
42,983

 
32,747

 
32,495

 
252

 
178

 
35,450

 
285

 
36,304

 
603

Permanent mortgage guaranteed by U.S. government agencies1
165,431

 
156,887

 
156,887

 
—

 
—

 
158,038

 
1,628

 
162,256

 
3,408

Home equity
7,704

 
7,704

 
7,704

 
—

 
—

 
7,382

 
—

 
6,980

 
—

Total residential mortgage
216,118

 
197,338

 
197,086

 
252

 
178

 
200,870

 
1,913

 
205,540

 
4,011

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total consumer
2,103

 
2,037

 
1,917

 
120

 
120

 
2,105

 
—

 
2,373

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
321,435

 
$
278,937

 
$
273,210

 
$
5,727

 
$
2,044

 
$
285,277

 
$
1,913

 
$
290,244

 
$
4,011

1 
All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At June 30, 2013, $83 thousand of these loans were nonaccruing and $157 million were accruing based on the guarantee by U.S. government agencies.

Troubled Debt Restructurings

A summary of troubled debt restructurings ("TDRs") by accruing status as of June 30, 2014 is as follows (in thousands):
 
 
As of June 30, 2014
 
Amounts Charged Off During
 
 
Recorded
Investment
 
Performing in Accordance With Modified Terms
 
Not
Performing in Accordance With Modified Terms
 
Specific
Allowance
 
Three Months Ended June 30, 2014
 
Six Months Ended
June 30, 2014
Nonaccruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
 
1,762

 
742

 
1,020

 
148

 
—

 
—

Wholesale/retail
 
3,719

 
3,598

 
121

 
9

 
—

 
—

Manufacturing
 
3,369

 
369

 
3,000

 
3,000

 
—

 
—

Healthcare
 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
 
726

 
54

 
672

 
—

 
—

 
—

Total commercial
 
9,576

 
4,763

 
4,813

 
3,157

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
9,482

 
1,622

 
7,860

 
162

 
—

 
—

Retail
 
3,727

 
2,535

 
1,192

 
—

 
—

 
—

Office
 
2,378

 
1,416

 
962

 
—

 
—

 
—

Multifamily
 
—

 
—

 
—

 
—

 
—

 
—

Industrial
 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
 
3,151

 
3,151

 
—

 
—

 
—

 
—

Total commercial real estate
 
18,738

 
8,724

 
10,014

 
162

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
17,182

 
11,605

 
5,577

 
83

 
107

 
108

Permanent mortgage guaranteed by U.S. government agencies
 
855

 
180

 
675

 
—

 
—

 
—

Home equity
 
5,076

 
3,923

 
1,153

 
—

 
52

 
65

Total residential mortgage
 
23,113

 
15,708

 
7,405

 
83

 
159

 
173

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
610

 
440

 
170

 
—

 
1

 
1

 
 
 
 
 
 
 
 
 
 
 
 
 
Total nonaccruing TDRs
 
$
52,037

 
$
29,635

 
$
22,402

 
$
3,402

 
$
160

 
$
174

 
 
 
 
 
 
 
 
 
 
 
 
 
Accruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgages guaranteed by U.S. government agencies
 
57,818

 
17,269

 
40,549

 
—

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Total TDRs
 
$
109,855

 
$
46,904

 
$
62,951

 
$
3,402

 
$
160

 
$
174

A summary of troubled debt restructurings by accruing status as of December 31, 2013 is as follows (in thousands):

 
 
As of
 
 
December 31, 2013
 
 
Recorded
Investment
 
Performing in Accordance With Modified Terms
 
Not
Performing in Accordance With Modified Terms
 
Specific
Allowance
Nonaccruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial:
 
 
 
 
 
 
 
 
Energy
 
$
—

 
$
—

 
$
—

 
$
—

Services
 
2,235

 
852

 
1,383

 
237

Wholesale/retail
 
235

 
89

 
146

 
9

Manufacturing
 
391

 
—

 
391

 
—

Healthcare
 
—

 
—

 
—

 
—

Other commercial and industrial
 
771

 
173

 
598

 
—

Total commercial
 
3,632

 
1,114

 
2,518

 
246

 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

Residential construction and land development
 
10,148

 
1,444

 
8,704

 
107

Retail
 
4,359

 
3,141

 
1,218

 
—

Office
 
5,059

 
3,872

 
1,187

 
—

Multifamily
 
—

 
—

 
—

 
—

Industrial
 
—

 
—

 
—

 
—

Other real estate loans
 
5,011

 
2,885

 
2,126

 
—

Total commercial real estate
 
24,577

 
11,342

 
13,235

 
107

 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

Permanent mortgage
 
18,697

 
12,214

 
6,483

 
88

Home equity
 
4,045

 
3,531

 
514

 
—

Total residential mortgage
 
22,742

 
15,745

 
6,997

 
88

 
 
 
 
 
 
 
 
 
Consumer
 
1,008

 
758

 
250

 
—

 
 
 
 
 
 
 
 
 
Total nonaccuring TDRs
 
$
51,959

 
$
28,959

 
$
23,000

 
$
441

 
 
 
 
 
 
 
 
 
Accruing TDRs:
 
 
 
 
 
 
 
 
Permanent mortgages guaranteed by U.S. government agencies
 
54,322

 
13,384

 
40,938

 
—

Total TDRs
 
$
106,281

 
$
42,343

 
$
63,938

 
$
441


A summary of troubled debt restructurings by accruing status as of June 30, 2013 is as follows (in thousands):
 
 
As of June 30, 2013
 
Amount Charged Off During
 
 
Recorded
Investment
 
Performing in Accordance With Modified Terms
 
Not
Performing in Accordance With Modified Terms
 
Specific
Allowance
 
Three Months Ended June 30, 2013
 
Six Months Ended
June 30, 2013
Nonaccruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
 
3,065

 
710

 
2,355

 
228

 
—

 
—

Wholesale/retail
 
1,107

 
968

 
139

 
12

 
—

 
—

Manufacturing
 
—

 
—

 
—

 
—

 
—

 
—

Healthcare
 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
 
821

 
189

 
632

 
—

 
—

 
—

Total commercial
 
4,993

 
1,867

 
3,126

 
240

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
11,734

 
1,934

 
9,800

 
23

 
54

 
54

Retail
 
5,681

 
1,604

 
4,077

 
—

 
—

 
627

Office
 
5,488

 
1,313

 
4,175

 
—

 
77

 
77

Multifamily
 
990

 
208

 
782

 
—

 
—

 
—

Industrial
 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
 
8,746

 
3,739

 
5,007

 
—

 
—

 
—

Total commercial real estate
 
32,639

 
8,798

 
23,841

 
23

 
131

 
758

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
17,639

 
10,917

 
6,722

 
54

 
8

 
348

Home equity
 
3,504

 
3,264

 
240

 
—

 
69

 
69

Total residential mortgage
 
21,143

 
14,181

 
6,962

 
54

 
77

 
417

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
1,542

 
1,324

 
218

 
78

 
—

 
1

 
 
 
 
 
 
 
 
 
 
 
 
 
Total nonaccruing TDRs
 
$
60,317

 
$
26,170

 
$
34,147

 
$
395

 
$
208

 
$
1,176

 
 
 
 
 
 
 
 
 
 
 
 
 
Accruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgages guaranteed by U.S. government agencies
 
48,733

 
12,598

 
36,135

 
—

 
—

 
—

Total TDRs
 
$
109,050

 
$
38,768

 
$
70,282

 
$
395

 
$
208

 
$
1,176

Troubled debt restructurings generally consist of interest rate concessions, payment stream concessions or a combination of concessions to distressed borrowers. The following tables detail the recorded balance of loans at June 30, 2014 by class that were restructured during the three and six months ended June 30, 2014 by primary type of concession (in thousands):

 
Three Months Ended
June 30, 2014
 
Accruing
 
Nonaccrual
 
Total
 
Payment Stream
 
Combination & Other
 
Total
 
Interest Rate
 
Payment Stream
 
Combination & Other
 
Total
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Wholesale/retail
—

 
—

 
—

 
—

 
3,542

 
—

 
3,542

 
3,542

Manufacturing
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Healthcare
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Total commercial
—

 
—

 
—

 
—

 
3,542

 
—

 
3,542

 
3,542

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
—

 
—

 
—

 
—

 
307

 
307

 
307

Retail
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Office
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Multifamily
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Total commercial real estate
—

 
—

 
—

 
—

 
—

 
307

 
307

 
307

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
—

 
—

 
—

 
218

 
1,821

 
2,039

 
2,039

Permanent mortgage guaranteed by U.S. government agencies
4,260

 
6,694

 
10,954

 
—

 
—

 
230

 
230

 
11,184

Home equity
—

 
—

 
—

 
—

 
—

 
1,276

 
1,276

 
1,276

Total residential mortgage
4,260

 
6,694

 
10,954

 
—

 
218

 
3,327

 
3,545

 
14,499

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
—

 
—

 
—

 
—

 
33

 
33

 
33

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
4,260

 
$
6,694

 
$
10,954

 
$
—

 
$
3,760

 
$
3,667

 
$
7,427

 
$
18,381


 
Six Months Ended
June 30, 2014
 
Accruing
 
Nonaccrual
 
Total
 
Payment Stream
 
Combination & Other
 
Total
 
Interest Rate
 
Payment Stream
 
Combination & Other
 
Total
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Wholesale/retail
—

 
—

 
—

 
—

 
3,542

 
—

 
3,542

 
3,542

Manufacturing
—

 
—

 
—

 
—

 
3,000

 
—

 
3,000

 
3,000

Healthcare
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
—

 
26

 
26

 
26

Total commercial
—

 
—

 
—

 
—

 
6,542

 
26

 
6,568

 
6,568

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
—

 
—

 
—

 
422

 
307

 
729

 
729

Retail
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Office
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Multifamily
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Total commercial real estate
—

 
—

 
—

 
—

 
422

 
307

 
729

 
729

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
—

 
—

 
—

 
348

 
2,062

 
2,410

 
2,410

Permanent mortgage guaranteed by U.S. government agencies
5,773

 
10,300

 
16,073

 
—

 
—

 
411

 
411

 
16,484

Home equity
—

 
—

 
—

 
—

 
—

 
1,564

 
1,564

 
1,564

Total residential mortgage
5,773

 
10,300

 
16,073

 
—

 
348

 
4,037

 
4,385

 
20,458

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
—

 
—

 
—

 
—

 
46

 
46

 
46

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
5,773

 
$
10,300

 
$
16,073

 
$
—

 
$
7,312

 
$
4,416

 
$
11,728

 
$
27,801



Troubled debt restructurings generally consist of interest rate concessions, payment stream concessions or a combination of concessions to distressed borrowers. The following tables detail the recorded balance of loans by class that were restructured during the three and six months ended June 30, 2013 by primary type of concession (in thousands):

 
Three Months Ended
June 30, 2013
 
Accruing
 
Nonaccrual
 
Total
 
Payment Stream
 
Combination & Other
 
Total
 
Interest Rate
 
Payment Stream
 
Combination & Other
 
Total
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
—

 
—

 
—

 
1,140

 
—

 
1,140

 
1,140

Wholesale/retail
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Manufacturing
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Healthcare
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Total commercial
—

 
—

 
—

 
—

 
1,140

 
—

 
1,140

 
1,140

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Retail
—

 
—

 
—

 
—

 
612

 
—

 
612

 
612

Office
—

 
—

 
—

 
—

 
3,181

 
—

 
3,181

 
3,181

Multifamily
—

 
—

 
—

 
—

 
990

 
—

 
990

 
990

Industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
3,931

 
—

 
3,931

 
3,931

Total commercial real estate
—

 
—

 
—

 
—

 
8,714

 
—

 
8,714

 
8,714

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
—

 
—

 
—

 
—

 
1,132

 
1,132

 
1,132

Permanent mortgage guaranteed by U.S. government agencies
3,087

 
5,809

 
8,896

 
—

 
—

 
—

 
—

 
8,896

Home equity
—

 
—

 
—

 
—

 
—

 
1,798

 
1,798

 
1,798

Total residential mortgage
3,087

 
5,809

 
8,896

 
—

 
—

 
2,930

 
2,930

 
11,826

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
—

 
—

 
—

 
—

 
777

 
777

 
777

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
3,087

 
$
5,809

 
$
8,896

 
$
—

 
$
9,854

 
$
3,707

 
$
13,561

 
$
22,457



 
Six Months Ended
June 30, 2013
 
Accruing
 
Nonaccrual
 
Total
 
Payment Stream
 
Combination & Other
 
Total
 
Interest Rate
 
Payment Stream
 
Combination & Other
 
Total
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
—

 
—

 
—

 
1,173

 
—

 
1,173

 
1,173

Wholesale/retail
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Manufacturing
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Healthcare
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
147

 
—

 
—

 
147

 
147

Total commercial
—

 
—

 
—

 
147

 
1,173

 
—

 
1,320

 
1,320

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Retail
—

 
—

 
—

 
—

 
612

 
—

 
612

 
612

Office
—

 
—

 
—

 
—

 
3,181

 
—

 
3,181

 
3,181

Multifamily
—

 
—

 
—

 
—

 
990

 
—

 
990

 
990

Industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
3,931

 
—

 
3,931

 
3,931

Total commercial real estate
—

 
—

 
—

 
—

 
8,714

 
—

 
8,714

 
8,714

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
—

 
—

 
—

 
27

 
1,377

 
1,404

 
1,404

Permanent mortgage guaranteed by U.S. government agencies
8,694

 
8,949

 
17,643

 
—

 
—

 
—

 
—

 
17,643

Home equity
—

 
—

 
—

 
—

 
—

 
2,108

 
2,108

 
2,108

Total residential mortgage
8,694

 
8,949

 
17,643

 
—

 
27

 
3,485

 
3,512

 
21,155

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
—

 
—

 
87

 
—

 
823

 
910

 
910

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
8,694

 
$
8,949

 
$
17,643

 
$
234

 
$
9,914

 
$
4,308

 
$
14,456

 
$
32,099


The following table summarizes, by loan class, the recorded investment at June 30, 2014 of loans modified as TDRs within the previous 12 months and for which there was a payment default during the three months ended June 30, 2014 (in thousands):

 
Three Months Ended
June 30, 2014
 
Six Months Ended
June 30, 2014
 
Accruing
 
Nonaccrual
 
Total
 
Accruing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
1,020

 
1,020

 
—

 
1,020

 
1,020

Wholesale/retail
—

 
—

 
—

 
—

 
—

 
—

Manufacturing
—

 
3,000

 
3,000

 
—

 
3,369

 
3,369

Healthcare
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
—

 
—

Total commercial
—

 
4,020

 
4,020

 
—

 
4,389

 
4,389

 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
422

 
422

 
—

 
422

 
422

Retail
—

 
459

 
459

 
—

 
459

 
459

Office
—

 
—

 
—

 
—

 
199

 
199

Multifamily
—

 
—

 
—

 
—

 
—

 
—

Industrial
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
—

 
—

Total commercial real estate
—

 
881

 
881

 
—

 
1,080

 
1,080

 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
2,324

 
2,324

 
—

 
2,769

 
2,769

Permanent mortgage guaranteed by U.S. government agencies
20,492

 
383

 
20,875

 
20,912

 
383

 
21,295

Home equity
—

 
1,002

 
1,002

 
—

 
1,021

 
1,021

Total residential mortgage
20,492

 
3,709

 
24,201

 
20,912

 
4,173

 
25,085

 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
14

 
14

 
—

 
14

 
14

 
 
 
 
 
 
 
 
 
 
 
 
Total
$
20,492

 
$
8,624

 
$
29,116

 
$
20,912

 
$
9,656

 
$
30,568


A payment default is defined as being 30 days or more past due. The table above includes loans that experienced a payment default during the period, but may be performing in accordance with the modified terms as of the balance sheet date.

The following table summarizes, by loan class, the recorded investment at June 30, 2013 of loans modified as TDRs within the previous 12 months and for which there was a payment default during the three months ended June 30, 2013 (in thousands):
 
Three Months Ended
June 30, 2013
 
Six Months Ended
June 30, 2013
 
Accruing
 
Nonaccrual
 
Total
 
Accruing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
2,007

 
2,007

 
—

 
2,007

 
2,007

Wholesale/retail
—

 
—

 
—

 
—

 
—

 
—

Manufacturing
—

 
—

 
—

 
—

 
—

 
—

Healthcare
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
33

 
33

Total commercial
—

 
2,007

 
2,007

 
—

 
2,040

 
2,040

 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
6,889

 
6,889

 
—

 
6,889

 
6,889

Retail
—

 
612

 
612

 
—

 
612

 
612

Office
—

 
3,181

 
3,181

 
—

 
3,181

 
3,181

Multifamily
—

 
782

 
782

 
—

 
990

 
990

Industrial
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
3,398

 
3,398

 
—

 
3,931

 
3,931

Total commercial real estate
—

 
14,862

 
14,862

 
—

 
15,603

 
15,603

 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
1,949

 
1,949

 
—

 
1,969

 
1,969

Permanent mortgage guaranteed by U.S. government agencies
22,784

 
—

 
22,784

 
26,767

 
—

 
26,767

Home equity
—

 
240

 
240

 
—

 
371

 
371

Total residential mortgage
22,784

 
2,189

 
24,973

 
26,767

 
2,340

 
29,107

 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
85

 
85

 
—

 
122

 
122

 
 
 
 
 
 
 
 
 
 
 
 
Total
$
22,784

 
$
19,143

 
$
41,927

 
$
26,767

 
$
20,105

 
$
46,872


Nonaccrual & Past Due Loans

Past due status for all loan classes is based on the actual number of days since the last payment was due according to the contractual terms of the loans.

A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of June 30, 2014 is as follows (in thousands):
 
 
 
 
Past Due
 
 
 
 
 
 
Current
 
30 to 89
Days
 
90 Days
or More
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,416,139

 
$
2,005

 
$
25

 
$
1,619

 
$
2,419,788

Services
 
2,373,081

 
315

 
—

 
3,669

 
2,377,065

Wholesale/retail
 
1,312,255

 
11

 
—

 
5,885

 
1,318,151

Manufacturing
 
448,656

 
703

 
—

 
3,507

 
452,866

Healthcare
 
1,392,718

 
16

 
—

 
1,422

 
1,394,156

Other commercial and industrial
 
404,248

 
386

 
—

 
1,001

 
405,635

Total commercial
 
8,347,097

 
3,436

 
25

 
17,103

 
8,367,661

 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
169,627

 
6

 
—

 
15,146

 
184,779

Retail
 
637,609

 
302

 
—

 
4,199

 
642,110

Office
 
390,626

 
—

 
—

 
3,591

 
394,217

Multifamily
 
677,403

 
—

 
—

 
—

 
677,403

Industrial
 
341,449

 
—

 
—

 
631

 
342,080

Other real estate loans
 
403,484

 
—

 
—

 
10,905

 
414,389

Total commercial real estate
 
2,620,198

 
308

 
—

 
34,472

 
2,654,978

 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
977,897

 
10,079

 
—

 
32,952

 
1,020,928

Permanent mortgages guaranteed by U.S. government agencies
 
27,855

 
19,231

 
139,054

 
1,947

 
188,087

Home equity
 
787,863

 
1,855

 
41

 
9,441

 
799,200

Total residential mortgage
 
1,793,615

 
31,165

 
139,095

 
44,340

 
2,008,215

 
 
 
 
 
 
 
 
 
 
 
Consumer
 
394,246

 
992

 
1

 
765

 
396,004

 
 
 
 
 
 
 
 
 
 
 
Total
 
$
13,155,156

 
$
35,901

 
$
139,121

 
$
96,680

 
$
13,426,858


A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of December 31, 2013 is as follows (in thousands):

 
 
 
 
Past Due
 
 
 
 
 
 
Current
 
30 to 89
Days
 
90 Days
or More
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,347,267

 
$
2,483

 
$
150

 
$
1,860

 
$
2,351,760

Services
 
2,276,036

 
1,210

 
42

 
4,922

 
2,282,210

Wholesale/retail
 
1,193,905

 
338

 
152

 
6,969

 
1,201,364

Manufacturing
 
391,159

 
—

 
—

 
592

 
391,751

Healthcare
 
1,272,660

 
—

 
—

 
1,586

 
1,274,246

Other commercial and industrial
 
440,973

 
81

 
5

 
831

 
441,890

Total commercial
 
7,922,000

 
4,112

 
349

 
16,760

 
7,943,221

 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
188,434

 
428

 
19

 
17,377

 
206,258

Retail
 
580,926

 
264

 
—

 
4,857

 
586,047

Office
 
404,505

 
603

 
—

 
6,391

 
411,499

Multifamily
 
576,495

 
—

 
—

 
7

 
576,502

Industrial
 
243,625

 
—

 
—

 
252

 
243,877

Other real estate loans
 
376,699

 
1,493

 
1,012

 
11,966

 
391,170

Total commercial real estate
 
2,370,684

 
2,788

 
1,031

 
40,850

 
2,415,353

 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
1,018,670

 
9,795

 
—

 
34,279

 
1,062,744

Permanent mortgages guaranteed by U.S. government agencies
 
21,916

 
17,290

 
141,615

 
777

 
181,598

Home equity
 
797,299

 
3,087

 
34

 
7,264

 
807,684

Total residential mortgage
 
1,837,885

 
30,172

 
141,649

 
42,320

 
2,052,026

 
 
 
 
 
 
 
 
 
 
 
Consumer
 
379,417

 
1,027

 
1

 
1,219

 
381,664

 
 
 
 
 
 
 
 
 
 
 
Total
 
$
12,509,986

 
$
38,099

 
$
143,030

 
$
101,149

 
$
12,792,264

A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of June 30, 2013 is as follows (in thousands):

 
 
 
 
Past Due
 
 
 
 
 
 
Current
 
30 to 89
Days
 
90 Days
or More
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,382,377

 
$
92

 
$
—

 
$
2,277

 
$
2,384,746

Services
 
2,192,771

 
1,769

 
2,265

 
7,448

 
2,204,253

Wholesale/retail
 
1,168,686

 
—

 
157

 
6,700

 
1,175,543

Manufacturing
 
385,257

 
—

 
—

 
876

 
386,133

Healthcare
 
1,115,187

 
953

 
—

 
2,670

 
1,118,810

Other commercial and industrial
 
437,558

 
160

 
19

 
898

 
438,635

Total commercial
 
7,681,836

 
2,974

 
2,441

 
20,869

 
7,708,120

 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
204,519

 
—

 
—

 
21,135

 
225,654

Retail
 
542,946

 
2,060

 
—

 
8,406

 
553,412

Office
 
451,730

 
—

 
—

 
7,828

 
459,558

Multifamily
 
492,306

 
1,699

 
—

 
6,447

 
500,452

Industrial
 
253,990

 
—

 
—

 
—

 
253,990

Other real estate loans
 
308,373

 
780

 
—

 
14,877

 
324,030

Total commercial real estate
 
2,253,864

 
4,539

 
—

 
58,693

 
2,317,096

 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
1,054,435

 
8,689

 
—

 
32,747

 
1,095,871

Permanent mortgages guaranteed by U.S. government agencies
 
22,328

 
17,670

 
116,806

 
83

 
156,887

Home equity
 
776,872

 
2,451

 
—

 
7,704

 
787,027

Total residential mortgage
 
1,853,635

 
28,810

 
116,806

 
40,534

 
2,039,785

 
 
 
 
 
 
 
 
 
 
 
Consumer
 
371,243

 
2,482

 
19

 
2,037

 
375,781

 
 
 
 
 
 
 
 
 
 
 
Total
 
$
12,160,578

 
$
38,805

 
$
119,266

 
$
122,133

 
$
12,440,782

Acquisitions Acquisitions (Notes)
Acquisitions [Text Block]
(5) Acquisitions

On February 28, 2014, the Company acquired GTRUST Financial Corporation ("GTRUST"), a Topeka-based independent trust and asset management company with approximately $631 million of assets under management or custody at the date of acquisition.

On April 30, 2014, the Company acquired MBM Advisors, a Houston-based independent, full service retirement and pension plan investment firm and an SEC registered investment adviser with approximately $1.3 billion of assets under management at the date of acquisition.

The purchase price for these acquisitions totaled approximately $27 million including $23 million paid in cash and $4 million of contingent consideration. The purchase price allocation included $14 million of identifiable intangible assets and $18 million of goodwill. The pro-forma impact of these transactions was not material to the Company's consolidated financial statements.
Mortgage Banking Activities
Mortgage Banking Activities [Text Block]
Mortgage Banking Activities

Residential Mortgage Loan Production

The Company originates, markets and services conventional and government-sponsored residential mortgage loans. Generally, conforming fixed rate residential mortgage loans are held for sale in the secondary market and non-conforming and adjustable-rate residential mortgage loans are held for investment. All residential mortgage loans originated for sale by the Company are carried at fair value based on sales commitments and market quotes. Changes in the fair value of mortgage loans held for sale are included in Other operating revenue – Mortgage banking revenue. Residential mortgage loans held for sale also includes the fair value of residential mortgage loan commitments and forward sale commitments which are considered derivative contracts that have not been designated as hedging instruments. The volume of mortgage loans originated for sale and secondary market prices are the primary drivers of originating and marketing revenue.

Residential mortgage loan commitments are generally outstanding for 60 to 90 days, which represents the typical period from commitment to originate a residential mortgage loan to when the closed loan is sold to an investor. Residential mortgage loan commitments are subject to both credit and interest rate risk. Credit risk is managed through underwriting policies and procedures, including collateral requirements, which are generally accepted by the secondary loan markets. Exposure to interest rate fluctuations is partially managed through forward sales of residential mortgage-backed securities and forward sales contracts. These latter contracts set the price for loans that will be delivered in the next 60 to 90 days.

The unpaid principal balance of residential mortgage loans held for sale, notional amounts of derivative contracts related to residential mortgage loan commitments and forward contract sales and their related fair values included in Mortgage loans held for sale on the Consolidated Balance Sheets were (in thousands):
 
 
June 30, 2014
 
December 31, 2013
 
June 30, 2013
 
 
Unpaid Principal Balance/
Notional
 
Fair Value
 
Unpaid Principal Balance/
Notional
 
Fair Value
 
Unpaid
Principal
 Balance/
Notional
 
Fair Value
Residential mortgage loans held for sale
 
$
310,341

 
$
319,508

 
$
192,266

 
$
193,584

 
$
284,454

 
$
280,962

Residential mortgage loan commitments
 
546,864

 
13,616

 
258,873

 
2,656

 
547,508

 
(1,709
)
Forward sales contracts
 
828,739

 
(7,249
)
 
435,867

 
4,306

 
740,752

 
21,804

 
 
 

 
$
325,875

 
 

 
$
200,546

 
 

 
$
301,057



No residential mortgage loans held for sale were 90 days or more past due or considered impaired as of June 30, 2014, December 31, 2013 or June 30, 2013. No credit losses were recognized on residential mortgage loans held for sale for the six month periods ended June 30, 2014 and 2013.

Mortgage banking revenue was as follows (in thousands):
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
 
2014
 
2013
 
2014
 
2013
Production revenue:
 
 
 
 
 
 
 
 
Residential mortgages loan held for sale
 
$
17,764

 
$
17,763

 
$
29,732

 
$
47,998

Residential mortgage loan commitments
 
7,614

 
(15,052
)
 
11,001

 
(14,442
)
Forward sales contracts
 
(7,651
)
 
23,645

 
(11,554
)
 
22,710

Total production revenue
 
17,727

 
26,356

 
29,179

 
56,266

Servicing revenue
 
11,603

 
10,240

 
22,995

 
20,306

Total mortgage banking revenue
 
$
29,330

 
$
36,596

 
$
52,174

 
$
76,572



Production revenue includes gain (loss) on residential mortgage loans held for sale and changes in the fair value of derivative contracts not designated as hedging instruments related to residential mortgage loan commitments and forward sales contracts. Servicing revenue includes servicing fee income and late charges on loans serviced for others.

Residential Mortgage Servicing

Mortgage servicing rights may be recognized when mortgage loans are originated pursuant to an existing plan for sale or, if no such plan exists, when the mortgage loans are sold. Mortgage servicing rights may also be purchased. Both originated and purchased mortgage servicing rights are initially recognized at fair value. The Company has elected to carry all mortgage servicing rights at fair value. Changes in the fair value are recognized in earnings as they occur. The unpaid principal balance of loans serviced for others is the primary driver of servicing revenue.

The following represents a summary of mortgage servicing rights (Dollars in thousands):
 
 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
Number of residential mortgage loans serviced for others
 
110,404

 
106,137

 
101,498

Outstanding principal balance of residential mortgage loans serviced for others
 
$
14,626,291

 
$
13,718,942

 
$
12,741,651

Weighted average interest rate
 
4.36
%
 
4.40
%
 
4.47
%
Remaining term (in months)
 
293

 
292

 
291



Activity in capitalized mortgage servicing rights during the three months ended June 30, 2014 was as follows (in thousands):
 
 
Purchased
 
Originated
 
Total
Balance, March 31, 2014
 
$
14,790

 
$
138,984

 
$
153,774

Additions, net
 
—

 
13,172

 
13,172

Change in fair value due to loan runoff
 
(599
)
 
(4,163
)
 
(4,762
)
Change in fair value due to market changes
 
(1,109
)
 
(5,335
)
 
(6,444
)
Balance, June 30, 2014
 
$
13,082

 
$
142,658

 
$
155,740


Activity in capitalized mortgage servicing rights during the six months ended June 30, 2014 was as follows (in thousands):
 
 
Purchased
 
Originated
 
Total
Balance, December 31, 2013
 
$
15,935

 
$
137,398

 
$
153,333

Additions, net
 
—

 
21,816

 
21,816

Change in fair value due to loan runoff
 
(1,114
)
 
(7,390
)
 
(8,504
)
Change in fair value due to market changes
 
(1,739
)
 
(9,166
)
 
(10,905
)
Balance, June 30, 2014
 
$
13,082

 
$
142,658

 
$
155,740


Activity in capitalized mortgage servicing rights during the three months ended June 30, 2013 was as follows (in thousands):
 
 
Purchased
 
Originated
 
Total
Balance, March 31, 2013
 
$
13,203

 
$
96,637

 
$
109,840

Additions, net
 
—

 
14,499

 
14,499

Change in fair value due to loan runoff
 
(940
)
 
(4,825
)
 
(5,765
)
Change in fair value due to market changes
 
3,319

 
10,996

 
14,315

Balance, June 30, 2013
 
$
15,582

 
$
117,307

 
$
132,889


Activity in capitalized mortgage servicing rights during the six months ended June 30, 2013 was as follows (in thousands):
 
 
Purchased
 
Originated
 
Total
Balance, December 31, 2012
 
$
12,976

 
$
87,836

 
$
100,812

Additions, net
 
—

 
25,932

 
25,932

Change in fair value due to loan runoff
 
(1,811
)
 
(9,017
)
 
(10,828
)
Change in fair value due to market changes
 
4,417

 
12,556

 
16,973

Balance, June 30, 2013
 
$
15,582

 
$
117,307

 
$
132,889

Changes in the fair value of mortgage servicing rights are included in Other operating revenue in the Consolidated Statements of Earnings. Changes in fair value due to loan runoff are included in Mortgage banking costs. Changes in fair value due to market changes are reported separately. Changes in fair value due to market changes during the period relate to assets held at the reporting date.

There is no active market for trading in mortgage servicing rights after origination. Fair value is determined by discounting the projected net cash flows. Significant assumptions used to determine fair value based on significant unobservable inputs were as follows:

 
 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
Discount rate – risk-free rate plus a market premium
 
10.20%
 
10.21%
 
10.25%
Loan servicing costs – annually per loan based upon loan type:
 
 
 
 
 
 
    Performing loans
 
$60-$105
 
$60 - $105
 
$58 - $105
    Delinquent loans
 
$150 - $500
 
$150 - $500
 
$135 - $500
    Loans in foreclosure
 
$1,000-$4,250
 
$1,000 - $4,250
 
$875 - $4,250
Escrow earnings rate – indexed to rates paid on deposit accounts with comparable average life
 
1.69%
 
1.80%
 
1.56%


The Company is exposed to interest rate risk as benchmark residential mortgage interest rates directly affect the prepayment speeds used in valuing our mortgage servicing rights, which is partially managed through forward sales of residential mortgage-backed securities and forward sales contracts. A separate third party model is used to estimate prepayment speeds based on interest rates, housing turnover rates, estimated loan curtailment, anticipated defaults and other relevant factors. The prepayment model is updated daily for changes in market conditions and adjusted to better correlate with actual performance of BOK Financial’s servicing portfolio.

Stratification of the residential mortgage loan servicing portfolio and outstanding principal of loans serviced for others by interest rate at June 30, 2014 follows (in thousands):
 
 
< 4.00%
 
4.00% - 4.99%

 
5.00% - 5.99%

 
> 5.99%
 
Total
Fair value
 
$
61,918

 
$
65,639

 
$
22,702

 
$
5,481

 
$
155,740

Outstanding principal of loans serviced for others
 
$
5,682,055

 
$
5,687,478

 
$
2,187,993

 
$
1,068,765

 
$
14,626,291

Weighted average prepayment rate1
 
7.33
%
 
8.26
%
 
12.60
%
 
28.53
%
 
10.03
%
1 
Annual prepayment estimates based upon loan interest rate, original term and loan type. Weighted average prepayment rate is determined by weighting the prepayment speed for each loan by its unpaid principal balance.

The interest rate sensitivity of our mortgage servicing rights and securities and derivative contracts held as an economic hedge is modeled over a range of +/- 50 basis points. At June 30, 2014, a 50 basis point increase in mortgage interest rates is expected to increase the fair value of our mortgage servicing rights, net of economic hedge by $4.0 million. A 50 basis point decrease in mortgage interest rates is expected to decrease the fair value of our mortgage servicing rights, net of economic hedge by $4.5 million. In the model, changes in the value of servicing rights due to changes in interest rates assume stable relationships between residential mortgage rates and prepayment speeds. Changes in market conditions can cause variations from these assumptions. These factors and others may cause changes in the value of our mortgage servicing rights to differ from our expectations.

The aging status of our mortgage loans serviced for others by investor at June 30, 2014 follows (in thousands):
 
 
 
 
Past Due
 
 
 
 
Current
 
30 to 59
Days
 
60 to 89
Days
 
90 Days or More
 
Total
FHLMC
 
$
4,681,165

 
$
36,913

 
$
9,828

 
$
31,543

 
$
4,759,449

FNMA
 
4,628,707

 
25,380

 
7,206

 
20,149

 
4,681,442

GNMA
 
4,538,079

 
125,530

 
35,461

 
14,487

 
4,713,557

Other
 
458,621

 
6,382

 
1,922

 
4,918

 
471,843

Total
 
$
14,306,572

 
$
194,205

 
$
54,417

 
$
71,097

 
$
14,626,291


The Company has off-balance sheet credit risk related to residential mortgage loans sold to U.S. government agencies with recourse prior to 2008 under various community development programs. These loans consist of first lien, fixed-rate residential mortgage loans underwritten to standards approved by the agencies including full documentation and originated under programs available only for owner-occupied properties. However, these loans have a higher risk of delinquency and loss given default than traditional residential mortgage loans. The Company no longer sells residential mortgage loans with recourse other than obligations under standard representations and warranties. The recourse obligation relates to loan performance for the life of the loan and the Company is obligated to repurchase the loan at the time of foreclosure for the unpaid principal balance plus unpaid interest. The principal balance of residential mortgage loans sold subject to recourse obligations totaled $181 million at June 30, 2014, $191 million at December 31, 2013 and $212 million at June 30, 2013. A separate accrual for these off-balance sheet commitments is included in Other liabilities in the Consolidated Balance Sheets totaling $9 million at June 30, 2014, $10 million at December 31, 2013 and $11 million at June 30, 2013. At June 30, 2014, approximately 4% of the loans sold with recourse with an outstanding principal balance of $6.6 million were either delinquent more than 90 days, in bankruptcy or in foreclosure and 5% with an outstanding balance of $10 million were past due 30 to 89 days. The provision for credit losses on loans sold with recourse is included in Mortgage banking costs in the Consolidated Statements of Earnings.

The activity in the allowance for losses on loans sold with recourse included in Other liabilities in the Consolidated Balance Sheets is summarized as follows (in thousands):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Beginning balance
$
9,066

 
$
11,420

 
$
9,562

 
$
13,158

Provision for recourse losses
183

 
416

 
167

 
(348
)
Loans charged off, net
(559
)
 
(916
)
 
(1,039
)
 
(1,890
)
Ending balance
$
8,690

 
$
10,920

 
$
8,690

 
$
10,920



The Company also has an off-balance sheet obligation to repurchase or provide indemnification for residential mortgage loans sold to government sponsored entities due to standard representations and warranties made under contractual agreements. The Company has established an accrual for credit losses related to potential loan repurchases under representations and warranties that is included in Other liabilities in the Consolidated Balance Sheets and in Mortgage banking costs in the Consolidated Statements of Earnings. The level of repurchases and indemnifications related to standard representations and warranties has remained low. The Company repurchased nine loans from the agencies for $1.3 million during the second quarter of 2014. There were two indemnifications on loans paid during the second quarter of 2014. Losses recognized on indemnifications and repurchases were insignificant.

A summary of unresolved deficiency requests from the agencies follows (in thousands, except for number of unresolved deficiency requests):
 
June 30,
2014
 
June 30,
2013
Number of unresolved deficiency requests
188

 
464

Aggregate outstanding principal balance subject to unresolved deficiency requests
$
16,497

 
$
55,517

Unpaid principal balance subject to indemnification by the Company
2,248

 
1,774



The activity in the accrual for credit losses related to potential loan repurchases and indemnifications under representations and warranties is summarized as follows (in thousands).
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Beginning balance
$
7,877

 
$
5,877

 
$
8,845

 
$
5,291

Provision for repurchase losses
(2,229
)
 
453

 
(3,071
)
 
1,429

Losses on repurchases and indemnifications, net
(75
)
 
(149
)
 
(201
)
 
(539
)
Ending balance
$
5,573


$
6,181


$
5,573


$
6,181

Employee Benefits
Employee Benefits [Text Block]
(7) Employee Benefits

BOK Financial has sponsored a defined benefit Pension Plan for all employees who satisfied certain age and service requirements.  Pension Plan benefits were curtailed as of April 1, 2006. The Company recognized periodic pension expense of $149 thousand and $500 thousand for the three months ended June 30, 2014 and 2013, respectively and $297 thousand and $1.0 million for the six months ended June 30, 2014 and 2013, respectively. The Company made no Pension Plan contributions during the three and six months ended June 30, 2014 and 2013.

No minimum contribution is required for 2014.
Commitments and Contingent Liabilities
Commitments and Contingent Liabilities
(8)  Commitments and Contingent Liabilities

Litigation Contingencies

As a member of Visa, BOK Financial is obligated for a proportionate share of certain covered litigation losses incurred by Visa under a retrospective responsibility plan. A contingent liability was recognized for the Company’s share of Visa’s covered litigation liabilities. Visa funded an escrow account to cover litigation claims, including covered litigation losses under the retrospective responsibility plan, with proceeds from its initial public offering in 2008 and from available cash. 

BOK Financial currently owns 251,837 Visa Class B shares which are convertible into 105,992 shares of Visa Class A shares after the final settlement of all covered litigation. Class B shares may be diluted in the future if the escrow fund is not adequate to cover future covered litigation costs. Therefore, no value has been currently assigned to the Class B shares and no value may be assigned until the Class B shares are converted into a known number of Class A shares.

In the ordinary course of business, BOK Financial and its subsidiaries are subject to legal actions and complaints. Management believes, based upon the opinion of counsel, that the actions and liability or loss, if any, resulting from the final outcomes of the proceedings, will not have a material effect on the Company’s financial condition, results of operations or cash flows.

Alternative Investment Commitments

The Company sponsors two private equity funds and invests in several tax credit entities and other funds as permitted by banking regulations. Consolidation of these investments is based on the variable interest model determined by the nature of the entity. Variable interest entities are generally defined as entities that either do not have sufficient equity to finance their activities without support from other parties or whose equity investors lack a controlling financial interest. Variable interest entities are consolidated based on the determination that the Company is the primary beneficiary including the power to direct the activities that most significantly impact the variable interest's economic performance and the obligation to absorb losses of the variable interest or the right to receive benefits of the variable interest that could be significant to the variable interest.

BOKF Equity, LLC, an indirect wholly-owned subsidiary, is the general partner of two consolidated private equity funds (“the Funds”). The Funds provide alternative investment opportunities to certain customers, some of which are related parties, through unaffiliated limited partnerships. These unaffiliated limited partnerships generally invest in distressed assets, asset buy-outs or venture capital companies. As general partner, BOKF Equity, LLC has the power to direct activities that most significantly affect the Funds' performance and contingent obligations to make additional investments totaling $6.0 million at June 30, 2014. Substantially all of the obligations are offset by limited partner commitments. The Company does not accrue its contingent liability to fund investments. The Volcker Rule in Title VI of the Dodd-Frank Act will limit both the amount and structure of these types of investments.

Consolidated tax credit investment entities represent the Company's interest in entities earning federal new market tax credits related to qualifying loans. The Company has the power to direct the activities that most significantly impact the variable interest's economic performance of the entity including being the primary beneficiary of or the obligation to absorb losses of the variable interest that could be significant to the variable interest.

The Company also has interests in various unrelated alternative investments generally consisting of unconsolidated limited partnership interests in or loans to entities for which investment return is primarily in the form of tax credits or that invest in distressed real estate loans and properties, energy development, venture capital and other activities. The Company is prohibited by banking regulations from controlling or actively managing the activities of these investments and the Company's maximum exposure to loss is restricted to its investment balance. The Company's obligation to fund alternative investments is included in Other liabilities in the Consolidated Balance Sheets.

A summary of consolidated and unconsolidated alternative investments as of June 30, 2014, December 31, 2013 and June 30, 2013 is as follows (in thousands):

 
 
June 30, 2014
 
 
Loans
 
Other
assets
 
Other
liabilities
 
Other
borrowings
 
Non-controlling
interests
Consolidated:
 
 
 
 
 
 
 
 
 
 
Private equity funds
 
$
—

 
$
27,834

 
$
—

 
$
—

 
$
23,112

Tax credit entities
 
10,000

 
13,137

 
—

 
10,964

 
10,000

Other
 
—

 
7,112

 
—

 
—

 
2,017

Total consolidated
 
$
10,000

 
$
48,083

 
$
—

 
$
10,964

 
$
35,129

 
 
 
 
 
 
 
 
 
 
 
Unconsolidated:
 
 
 
 
 
 
 
 
 
 
Tax credit entities
 
$
19,855

 
$
95,251

 
$
30,782

 
$
—

 
$
—

Other
 
—

 
6,321

 
1,657

 
—

 
—

Total unconsolidated
 
$
19,855

 
$
101,572

 
$
32,439

 
$
—

 
$
—


 
 
December 31, 2013
 
 
Loans
 
Other
assets
 
Other
liabilities
 
Other
borrowings
 
Non-controlling
interests
Consolidated:
 
 
 
 
 
 
 
 
 
 
Private equity funds
 
$
—

 
$
27,341

 
$
—

 
$
—

 
$
23,036

Tax credit entities
 
10,000

 
13,448

 
—

 
10,964

 
9,869

Other
 
—

 
9,178

 
—

 
—

 
2,019

Total consolidated
 
$
10,000

 
$
49,967

 
$
—

 
$
10,964

 
$
34,924

 
 
 
 
 
 
 
 
 
 
 
Unconsolidated:
 
 
 
 
 
 
 
 
 
 
Tax credit entities
 
$
27,319

 
$
90,260

 
$
35,776

 
$
—

 
$
—

Other
 
—

 
9,257

 
1,681

 
—

 
—

Total unconsolidated
 
$
27,319

 
$
99,517

 
$
37,457

 
$
—

 
$
—


 
 
June 30, 2013
 
 
Loans
 
Other
assets
 
Other
liabilities
 
Other
borrowings
 
Non-controlling
interests
Consolidated:
 
 
 
 
 
 
 
 
 
 
Private equity funds
 
$
—

 
$
28,379

 
$
—

 
$
—

 
$
23,418

Tax credit entities
 
10,000

 
13,706

 
—

 
10,964

 
10,000

Other
 
—

 
8,483

 
—

 
—

 
1,827

Total consolidated
 
$
10,000

 
$
50,568

 
$
—

 
$
10,964

 
$
35,245

 
 
 
 
 
 
 
 
 
 
 
Unconsolidated:
 
 
 
 
 
 
 
 
 
 
Tax credit entities
 
$
26,851

 
$
86,327

 
$
37,864

 
$
—

 
$
—

Other
 
—

 
9,371

 
1,775

 
—

 
—

Total unconsolidated
 
$
26,851

 
$
95,698

 
$
39,639

 
$
—

 
$
—




Other Commitments and Contingencies

At June 30, 2014, Cavanal Hill Funds’ assets included $991 million of U.S. Treasury, $1.1 billion of cash management and $241 million of tax-free money market funds. Assets of these funds consist of highly-rated, short-term obligations of the U.S. Treasury, corporate issuers and U.S. states and municipalities. The net asset value of units in these funds was $1.00 at June 30, 2014. An investment in these funds is not insured by the Federal Deposit Insurance Corporation or guaranteed by BOK Financial or any of its subsidiaries. BOK Financial may, but is not obligated to purchase assets from these funds to maintain the net asset value at $1.00. No assets were purchased from the funds in 2014 or 2013.

Cottonwood Valley Ventures, Inc. (“CVV, Inc.”), an indirectly wholly-owned subsidiary of BOK Financial, is being audited by the Oklahoma Tax Commission (“OTC”) for tax years 2007 through 2009. CVV, Inc. is a qualified venture capital company under the applicable Oklahoma statute. As authorized by the statute, CVV, Inc. guarantees transferable Oklahoma state income tax credits by providing direct debt financing to private companies which qualify as statutory business ventures. Due to certain statutory limitations on utilization of such credits, CVV, Inc. must sell the majority of the credits to provide the economic incentives provided for by the statute. During the third quarter of 2012, CVV, Inc. and credit purchasers settled the assessment related to the 2008 tax credits disallowed with no material adverse impact to the consolidated financial statements. Management does not anticipate that the remaining issue under audit will have a material adverse impact to the consolidated financial statements.

The Company agreed to guarantee rents totaling $29 million through September of 2017 to the City of Tulsa as owner of a building immediately adjacent to the Bank’s main office for space currently rented by third-party tenants in the building. All rent payments are current. Remaining guaranteed rents totaled $10 million at June 30, 2014. In return for this guarantee, the Company will receive 80% of net cash flow as defined in an agreement with the City of Tulsa through September 2017 from rental of space that was vacant at the inception of the agreement. The maximum amount that the Company may receive under this agreement is $4.5 million.
Shareholders' Equity
Shareholders' Equity [Text Block]
(9) Shareholders' Equity

On July 29, 2014, the Company declared a a quarterly cash dividend of $0.40 per common share on or about August 29, 2014 to shareholders of record as of August 15, 2014.

Dividends declared were $0.40 and $0.80 per share during the three and six months ended June 30, 2014, respectively. Dividends declared were $0.38 and $0.76 per share during the three and six months ended June 30, 2013, respectively.

Accumulated Other Comprehensive Income (Loss)

AOCI includes unrealized gains and losses on available for sale ("AFS") securities and non-credit related unrealized losses on AFS securities for which an other-than-temporary impairment has been recorded in earnings. AOCI also includes unrealized gains on AFS securities that were transferred from AFS to investment securities in the third quarter of 2011. Such amounts are being amortized over the estimated remaining life of the security as an adjustment to yield, offsetting the related amortization of premium on the transferred securities. Unrealized losses on employee benefit plans will be reclassified into income as pension plan costs are recognized over the remaining service period of plan participants. Accumulated losses on the interest rate lock hedge of the 2005 subordinated debt issuance are being reclassified into income over the ten-year life of the debt. Gains and losses in AOCI are net of deferred income taxes.

A rollforward of the components of accumulated other comprehensive income (loss) is included as follows (in thousands):
 
 
Unrealized Gain (Loss) on
 
 
 
 
 
 
Available for Sale Securities
 
Investment Securities Transferred from AFS
 
Employee Benefit Plans
 
Loss on Effective Cash Flow Hedges
 
Total
Balance, December 31, 2012
 
$
155,553

 
$
3,078

 
$
(8,296
)
 
$
(415
)
 
$
149,920

Net change in unrealized gain (loss)
 
(204,545
)
 
—

 
—

 
—

 
(204,545
)
Reclassification adjustments included in earnings:
 
 
 
 
 
 
 
 
 
 
Interest revenue, Investment securities, Taxable securities
 
—

 
(2,021
)
 
—

 
—

 
(2,021
)
Interest expense, Subordinated debentures
 
—

 
—

 
—

 
124

 
124

Net impairment losses recognized in earnings
 
799

 
—

 
—

 
—

 
799

Gain on available for sale securities, net
 
(8,608
)
 
—

 
—

 
—

 
(8,608
)
Other comprehensive income (loss), before income taxes
 
(212,354
)
 
(2,021
)
 
—

 
124

 
(214,251
)
Federal and state income taxes1
 
82,605

 
788

 
—

 
(48
)
 
83,345

Other comprehensive income (loss), net of income taxes
 
(129,749
)
 
(1,233
)
 
—

 
76

 
(130,906
)
Balance, June 30, 2013
 
$
25,804

 
$
1,845

 
$
(8,296
)
 
$
(339
)
 
$
19,014

 
 
 
 
 
 
 
 
 
 
 
Balance, December 31, 2013
 
$
(23,175
)
 
$
1,118

 
$
(3,311
)
 
$
(255
)
 
$
(25,623
)
Net change in unrealized gains (losses)
 
124,653

 
—

 
(2
)
 
—

 
124,651

Reclassification adjustments included in earnings:
 
 
 
 
 
 
 
 
 
 
Interest revenue, Investment securities, Taxable securities
 
—

 
(736
)
 
—

 
—

 
(736
)
Interest expense, Subordinated debentures
 
—

 
—

 
—

 
154

 
154

Gain on available for sale securities, net
 
(1,244
)
 
—

 
—

 
—

 
(1,244
)
Other comprehensive income (loss), before income taxes
 
123,409

 
(736
)
 
(2
)
 
154

 
122,825

Federal and state income taxes1
 
(48,013
)
 
286

 
1

 
(60
)
 
(47,786
)
Other comprehensive income (loss), net of income taxes
 
75,396

 
(450
)
 
(1
)
 
94

 
75,039

Balance, June 30, 2014
 
$
52,221

 
$
668

 
$
(3,312
)
 
$
(161
)
 
$
49,416


1 
Calculated using a 39% effective tax rate.
Earnings Per Share
Earnings Per Share [Text Block]
(10)  Earnings Per Share
 
(In thousands, except share and per share amounts)
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Numerator:
 
 
 
 
 
 
 
 
Net income attributable to BOK Financial Corp. shareholders
 
$
75,895

 
$
79,931

 
$
152,485

 
$
167,895

Less: Earnings allocated to participating securities
 
884

 
854

 
1,579

 
1,825

Numerator for basic earnings per share – income available to common shareholders
 
75,011

 
79,077

 
150,906

 
166,070

Effect of reallocating undistributed earnings of participating securities
 
1

 
2

 
2

 
4

Numerator for diluted earnings per share – income available to common shareholders
 
$
75,012

 
$
79,079

 
$
150,908

 
$
166,074

 
 
 
 
 
 
 
 
 
Denominator:
 
 

 
 

 
 

 
 

Weighted average shares outstanding
 
69,162,724

 
68,719,694

 
69,031,961

 
68,645,247

Less:  Participating securities included in weighted average shares outstanding
 
802,779

 
725,872

 
713,272

 
740,648

Denominator for basic earnings per common share
 
68,359,945

 
67,993,822

 
68,318,689

 
67,904,599

Dilutive effect of employee stock compensation plans1
 
151,433

 
218,675

 
157,113

 
222,152

Denominator for diluted earnings per common share
 
68,511,378

 
68,212,497

 
68,475,802

 
68,126,751

 
 
 
 
 
 
 
 
 
Basic earnings per share
 
$
1.10

 
$
1.16

 
$
2.21

 
$
2.45

Diluted earnings per share
 
$
1.10

 
$
1.16

 
$
2.20

 
$
2.44

1  Excludes employee stock options with exercise prices greater than current market price.
 
—

 
—

 
—

 
—

Reportable Segments
Reportable Segments [Text Block]
(11)  Reportable Segments

Reportable segments reconciliation to the Consolidated Financial Statements for the three months ended June 30, 2014 is as follows (in thousands):
 
 
Commercial
 
Consumer
 
Wealth
Management
 
Funds Management and Other
 
BOK
Financial
Consolidated
Net interest revenue from external sources
 
$
95,018

 
$
24,170

 
$
5,765

 
$
41,144

 
$
166,097

Net interest revenue (expense) from internal sources
 
(7,857
)
 
4,666

 
$
4,719

 
(1,528
)
 
—

Net interest revenue
 
87,161

 
28,836

 
10,484

 
39,616

 
166,097

Provision for credit losses
 
(2,812
)
 
1,345

 
19

 
1,448

 
—

Net interest revenue after provision for credit losses
 
89,973

 
27,491

 
10,465

 
38,168

 
166,097

Other operating revenue
 
44,836

 
51,256

 
65,527

 
950

 
162,569

Other operating expense
 
50,922

 
49,087

 
55,156

 
59,542

 
214,707

Net direct contribution
 
83,887

 
29,660

 
20,836

 
(20,424
)
 
113,959

Corporate expense allocations
 
18,367

 
16,911

 
12,388

 
(47,666
)
 
—

Net income before taxes
 
65,520

 
12,749

 
8,448

 
27,242

 
113,959

Federal and state income taxes
 
25,487

 
4,959

 
3,286

 
3,498

 
37,230

Net income
 
40,033

 
7,790

 
5,162

 
23,744

 
76,729

Net income attributable to non-controlling interests
 
—

 
—

 
—

 
834

 
834

Net income attributable to BOK Financial Corp. shareholders
 
$
40,033

 
$
7,790

 
$
5,162

 
$
22,910

 
$
75,895

 
 
 
 
 
 
 
 
 
 
 
Average assets
 
$
11,243,678

 
$
5,668,256

 
$
4,556,825

 
$
6,018,062

 
$
27,486,821

Average invested capital
 
937,085

 
276,294

 
214,936

 
1,748,409

 
3,176,724

 
 
 
 
 
 
 
 
 
 
 
Performance measurements:
 
 

 
 

 
 

 
 

 
 

Return on average assets
 
1.43
%
 
0.55
%
 
0.45
%
 
 
 
1.11
%
Return on average invested capital
 
17.14
%
 
11.31
%
 
9.63
%
 
 
 
9.58
%
Efficiency ratio
 
38.52
%
 
55.11
%
 
72.29
%
 
 
 
63.62
%

Reportable segments reconciliation to the Consolidated Financial Statements for the six months ended June 30, 2014 is as follows (in thousands):
 
 
Commercial
 
Consumer
 
Wealth
Management
 
Funds Management and Other
 
BOK
Financial
Consolidated
Net interest revenue from external sources
 
$
186,037

 
$
48,826

 
$
11,604

 
$
82,272

 
$
328,739

Net interest revenue (expense) from internal sources
 
(16,714
)
 
8,860

 
$
9,403

 
(1,549
)
 
—

Net interest revenue
 
169,323

 
57,686

 
21,007

 
80,723

 
328,739

Provision for credit losses
 
(6,043
)
 
2,201

 
(26
)
 
3,868

 
—

Net interest revenue after provision for credit losses
 
175,366

 
55,485

 
21,033

 
76,855

 
328,739

Other operating revenue
 
85,525

 
94,668

 
119,787

 
(405
)
 
299,575

Other operating expense
 
100,310

 
90,932

 
104,403

 
104,166

 
399,811

Net direct contribution
 
160,581

 
59,221

 
36,417

 
(27,716
)
 
228,503

Corporate expense allocations
 
35,653

 
32,750

 
23,810

 
(92,213
)
 
—

Net income before taxes
 
124,928

 
26,471

 
12,607

 
64,497

 
228,503

Federal and state income taxes
 
48,597

 
10,297

 
4,904

 
10,933

 
74,731

Net income
 
76,331

 
16,174

 
7,703

 
53,564

 
153,772

Net income attributable to non-controlling interests
 
—

 
—

 
—

 
1,287

 
1,287

Net income attributable to BOK Financial Corp. shareholders
 
$
76,331

 
$
16,174

 
$
7,703

 
$
52,277

 
$
152,485

 
 
 
 
 
 
 
 
 
 
 
Average assets
 
$
11,100,687

 
$
5,642,181

 
$
4,589,141

 
$
6,031,471

 
$
27,363,480

Average invested capital
 
934,768

 
279,897

 
208,909

 
1,717,523

 
3,141,097

 
 
 
 
 
 
 
 
 
 
 
Performance measurements:
 
 

 
 

 
 

 
 

 
 

Return on average assets
 
1.39
%
 
0.58
%
 
0.34
%
 
 
 
1.12
%
Return on average invested capital
 
16.47
%
 
11.65
%
 
7.44
%
 
 
 
9.79
%
Efficiency ratio
 
39.07
%
 
53.74
%
 
73.72
%
 
 
 
61.74
%



Reportable segments reconciliation to the Consolidated Financial Statements for the three months ended June 30, 2013 is as follows (in thousands):
 
 
Commercial
 
Consumer
 
Wealth
Management
 
Funds Management and Other
 
BOK
Financial
Consolidated
Net interest revenue from external sources
 
$
90,551

 
$
24,830

 
$
6,512

 
$
46,999

 
$
168,892

Net interest revenue (expense) from internal sources
 
(9,389
)
 
5,167

 
5,107

 
(885
)
 
—

Net interest revenue
 
81,162

 
29,997

 
11,619

 
46,114

 
168,892

Provision for credit losses
 
86

 
1,402

 
931

 
(2,419
)
 
—

Net interest revenue after provision for credit losses
 
81,076

 
28,595

 
10,688

 
48,533

 
168,892

Other operating revenue
 
43,330

 
62,309

 
55,287

 
2,414

 
163,340

Other operating expense
 
47,342

 
47,151

 
51,440

 
64,988

 
210,921

Net direct contribution
 
77,064

 
43,753

 
14,535

 
(14,041
)
 
121,311

Corporate expense allocations
 
18,080

 
14,690

 
13,019

 
(45,789
)
 
—

Net income before taxes
 
58,984

 
29,063

 
1,516

 
31,748

 
121,311

Federal and state income taxes
 
22,945

 
11,306

 
590

 
6,582

 
41,423

Net income
 
36,039

 
17,757

 
926

 
25,166

 
79,888

Net loss attributable to non-controlling interests
 
—

 
—

 
—

 
(43
)
 
(43
)
Net income attributable to BOK Financial Corp. shareholders
 
$
36,039

 
$
17,757

 
$
926

 
$
25,209

 
$
79,931

 
 
 
 
 
 
 
 
 
 
 
Average assets
 
$
10,363,144

 
$
5,695,096

 
$
4,544,061

 
$
7,057,023

 
$
27,659,324

Average invested capital
 
899,087

 
297,674

 
206,219

 
1,624,674

 
3,027,654

 
 
 
 
 
 
 
 
 
 
 
Performance measurements:
 
 

 
 

 
 

 
 

 
 

Return on average assets
 
1.39
%
 
1.25
%
 
0.08
%
 
 
 
1.16
%
Return on average invested capital
 
16.08
%
 
23.93
%
 
1.80
%
 
 
 
10.59
%
Efficiency ratio
 
37.96
%
 
49.26
%
 
76.87
%
 
 
 
63.11
%


Reportable segments reconciliation to the Consolidated Financial Statements for the six months ended June 30, 2013 is as follows (in thousands):
 
 
Commercial
 
Consumer
 
Wealth
Management
 
Funds Management and Other
 
BOK
Financial
Consolidated
Net interest revenue from external sources
 
$
181,433

 
$
48,925

 
$
12,991

 
$
96,995

 
$
340,344

Net interest revenue (expense) from internal sources
 
(18,534
)
 
10,650

 
10,403

 
(2,519
)
 
—

Net interest revenue
 
162,899

 
59,575

 
23,394

 
94,476

 
340,344

Provision for credit losses
 
1,107

 
2,332

 
1,449

 
(12,888
)
 
(8,000
)
Net interest revenue after provision for credit losses
 
161,792

 
57,243

 
21,945

 
107,364

 
348,344

Other operating revenue
 
84,781

 
122,108

 
106,778

 
10,359

 
324,026

Other operating expense
 
94,002

 
92,159

 
98,562

 
130,181

 
414,904

Net direct contribution
 
152,571

 
87,192

 
30,161

 
(12,458
)
 
257,466

Corporate expense allocations
 
36,079

 
28,859

 
25,559

 
(90,497
)
 
—

Net income before taxes
 
116,492

 
58,333

 
4,602

 
78,039

 
257,466

Federal and state income taxes
 
45,315

 
22,692

 
1,790

 
18,722

 
88,519

Net income
 
71,177

 
35,641

 
2,812

 
59,317

 
168,947

Net income attributable to non-controlling interests
 
—

 
—

 
—

 
1,052

 
1,052

Net income attributable to BOK Financial Corp. shareholders
 
$
71,177

 
$
35,641

 
$
2,812

 
$
58,265

 
$
167,895

 
 
 
 
 
 
 
 
 
 
 
Average assets
 
$
10,486,544

 
$
5,709,446

 
$
4,615,169

 
$
6,775,621

 
$
27,586,780

Average invested capital
 
895,748

 
297,375

 
204,161

 
1,615,544

 
3,012,828

 
 
 
 
 
 
 
 
 
 
 
Performance measurements:
 
 

 
 

 
 

 
 

 
 

Return on average assets
 
1.37
%
 
1.26
%
 
0.12
%
 
 
 
1.23
%
Return on average invested capital
 
16.02
%
 
24.17
%
 
2.78
%
 
 
 
11.24
%
Efficiency ratio
 
37.89
%
 
47.91
%
 
75.24
%
 
 
 
62.07
%
Fair Value Measurements
Fair Value Measurements [Text Block]
(12) Fair Value Measurements

Fair value is defined by applicable accounting guidance as the price to sell an asset or transfer a liability in an orderly transaction between market participants in the principal market for the given asset or liability at the measurement date based on market conditions at that date. Certain assets and liabilities are recorded in the Company’s financial statements at fair value. Some are recorded on a recurring basis and some on a non-recurring basis.

For some assets and liabilities, observable market transactions and market information might be available. For other assets and liabilities, observable market transactions and market information might not be available. A hierarchy for fair value has been established which categorizes into three levels the inputs to valuation techniques used to measure fair value. The three levels are as follows:

Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) - fair value is based on unadjusted quoted prices in active markets for identical assets or liabilities.

Significant Other Observable Inputs (Level 2) - Fair value is based on significant other observable inputs which are generally determined based on a single price for each financial instrument provided to us by an applicable third-party pricing service and is based on one or more of the following:

•
Quoted prices for similar, but not identical, assets or liabilities in active markets;
•
Quoted prices for identical or similar assets or liabilities in inactive markets;
•
Inputs other than quoted prices that are observable, such as interest rate and yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates;
•
Other inputs derived from or corroborated by observable market inputs.

Significant Unobservable Inputs (Level 3) - Fair value is based upon model-based valuation techniques for which at least one significant assumption is not observable in the market.

Transfers between levels are recognized as of the end of the reporting period. There were no transfers in or out of quoted prices in active markets for identical instruments, significant other observable inputs or significant unobservable inputs during the six months ended June 30, 2014 and 2013, respectively.

The underlying methods used by the third-party pricing services are considered in determining the primary inputs used to determine fair values. Management has evaluated the methodologies employed by the third-party pricing services by comparing the price provided by the pricing service with other sources, including brokers' quotes, sales or purchases of similar instruments and discounted cash flows to establish a basis for reliance on the pricing service values. Significant differences between the pricing service provided value and other sources are discussed with the pricing service to understand the basis for their values. Based on all observable inputs, management may adjust prices obtained from third-party pricing services to more appropriately reflect the prices that would be received to sell assets or paid to transfer liabilities in orderly transactions in the current market. No significant adjustments were made to prices provided by third-party pricing services at June 30, 2014, December 31, 2013 or June 30, 2013.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of June 30, 2014 (in thousands):
 
 
Total
 
Quoted Prices in Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
19,027

 
$
—

 
$
19,027

 
$
—

U.S. agency residential mortgage-backed securities
 
13,540

 
—

 
13,540

 
—

Municipal and other tax-exempt securities
 
32,950

 
—

 
32,950

 
—

Other trading securities
 
35,580

 
—

 
35,580

 
—

Total trading securities
 
101,097

 
—

 
101,097

 
—

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,024

 
1,024

 
—

 
—

Municipal and other tax-exempt
 
64,970

 
—

 
54,525

 
10,445

U.S. agency residential mortgage-backed securities
 
7,259,504

 
—

 
7,259,504

 
—

Privately issued residential mortgage-backed securities
 
179,042

 
—

 
179,042

 
—

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,115,295

 
—

 
2,115,295

 
—

Other debt securities
 
34,528

 
—

 
30,297

 
4,231

Perpetual preferred stock
 
24,730

 
—

 
24,730

 
—

Equity securities and mutual funds
 
20,053

 
5,106

 
14,947

 
—

Total available for sale securities
 
9,699,146

 
6,130

 
9,678,340

 
14,676

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
181,205

 
—

 
181,205

 
—

     Other securities
 
4,469

 
—

 
4,469

 
—

Total fair value option securities
 
185,674

 
—

 
185,674

 
—

Residential mortgage loans held for sale
 
325,875

 
—

 
325,875

 
—

Mortgage servicing rights1
 
155,740

 
—

 
—

 
155,740

Derivative contracts, net of cash collateral2
 
357,680

 
800

 
356,880

 
—

Other assets – private equity funds
 
27,834

 
—

 
—

 
27,834

Liabilities:
 
 

 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
297,851

 
—

 
297,851

 
—

1 
A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities.
2 
See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts in asset positions that were valued based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy derivative contacts, net of cash margin. Derivative contacts in liability positions that were valued using quoted prices in active market for identical instruments are exchange-traded energy, agricultural and interest rate derivative contracts that were fully offset by cash margin.

The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of December 31, 2013 (in thousands):
 
 
Total
 
Quoted Prices in Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
34,120

 
$
—

 
$
34,120

 
$
—

U.S. agency residential mortgage-backed securities
 
21,011

 
—

 
21,011

 
—

Municipal and other tax-exempt securities
 
27,350

 
—

 
27,350

 
—

Other trading securities
 
9,135

 
—

 
9,135

 
—

Total trading securities
 
91,616

 
—

 
91,616

 
—

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,042

 
1,042

 
—

 
—

Municipal and other tax-exempt
 
73,775

 
—

 
55,970

 
17,805

U.S. agency residential mortgage-backed securities
 
7,716,010

 
—

 
7,716,010

 
—

Privately issued residential mortgage-backed securities
 
221,099

 
—

 
221,099

 
—

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,055,804

 
—

 
2,055,804

 
—

Other debt securities
 
35,241

 
—

 
30,529

 
4,712

Perpetual preferred stock
 
22,863

 
—

 
22,863

 
—

Equity securities and mutual funds
 
21,328

 
—

 
17,121

 
4,207

Total available for sale securities
 
10,147,162

 
1,042

 
10,119,396

 
26,724

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
157,431

 
—

 
157,431

 
—

     Other securities
 
9,694

 
—

 
9,694

 
—

Total fair value option securities
 
167,125

 
—

 
167,125

 
—

Residential mortgage loans held for sale
 
200,546

 
—

 
200,546

 
—

Mortgage servicing rights1
 
153,333

 
—

 
—

 
153,333

Derivative contracts, net of cash collateral2
 
265,012

 
2,712

 
262,300

 
—

Other assets – private equity funds
 
27,341

 
—

 
—

 
27,341

Liabilities:
 


 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
247,185

 
—

 
247,185

 
—

1 
A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities.
2 
See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy derivative contacts, net of cash margin.


The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of June 30, 2013 (in thousands):
 
 
Total
 
Quoted Prices in
Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
60,713

 
$
—

 
$
60,713

 
$
—

U.S. agency residential mortgage-backed securities
 
43,858

 
—

 
43,858

 
—

Municipal and other tax-exempt securities
 
53,819

 
—

 
53,819

 
—

Other trading securities
 
32,201

 
—

 
32,201

 
—

Total trading securities
 
190,591

 
—

 
190,591

 
—

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,060

 
1,060

 
—

 
—

Municipal and other tax-exempt
 
95,103

 
—

 
56,256

 
38,847

U.S. agency residential mortgage-backed securities
 
8,372,795

 
—

 
8,372,795

 
—

Privately issued residential mortgage-backed securities
 
297,175

 
—

 
297,175

 
—

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
1,846,943

 
—

 
1,846,943

 
—

Other debt securities
 
35,894

 
—

 
30,701

 
5,193

Perpetual preferred stock
 
25,583

 
—

 
25,583

 
—

Equity securities and mutual funds
 
23,521

 
5,119

 
16,155

 
2,247

Total available for sale securities
 
10,698,074

 
6,179

 
10,645,608

 
46,287

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
203,816

 
—

 
203,816

 
—

Other securities
 
1,940

 
—

 
1,940

 
—

Total fair value option securities
 
205,756

 
—

 
205,756

 
—

Residential mortgage loans held for sale
 
301,057

 
—

 
301,057

 
—

Mortgage servicing rights1
 
132,889

 
—

 
—

 
132,889

Derivative contracts, net of cash collateral2
 
546,206

 
17,588

 
528,618

 
—

Other assets – private equity funds
 
28,379

 
—

 
—

 
28,379

Liabilities:
 
 

 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
521,991

 
—

 
521,991

 
—

1 
A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities.
2 
See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy and agricultural derivative contacts, net of cash margin.


Following is a description of the Company's valuation methodologies used for assets and liabilities measured on a recurring basis:
Securities
The fair values of trading, available for sale and fair value option securities are based on quoted prices for identical instruments in active markets, when available. If quoted prices for identical instruments are not available, fair values are based on significant other observable inputs such as quoted prices of comparable instruments or interest rates and credit spreads, yield curves, volatilities, prepayment speeds and loss severities.

The fair value of certain available for sale municipal and other debt securities may be based on significant unobservable inputs. These significant unobservable inputs include limited observed trades, projected cash flows, current credit rating of the issuers and, when applicable, the insurers of the debt and observed trades of similar debt. Discount rates are primarily based on reference to interest rate spreads on comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies adjusted for a lack of trading volume. Significant unobservable inputs are developed by investment securities professionals involved in the active trading of similar securities. A summary of significant inputs used to value these securities follows. A management committee composed of senior members from the Company's Capital Markets, Risk Management and Finance departments assess the appropriateness of these inputs monthly.

Derivatives

All derivative instruments are carried on the balance sheet at fair value. Fair values for exchange-traded contracts are based on quoted prices. Fair values for over-the-counter interest rate, commodity and foreign exchange contracts are based on valuations provided either by third-party dealers in the contracts, quotes provided by independent pricing services, or a third-party provided pricing model that uses significant other observable market inputs.

Credit risk is considered in determining the fair value of derivative instruments. Management determines fair value adjustments based on various risk factors including but not limited to counterparty credit rating or equivalent loan grading, derivative contract notional size, price volatility of the underlying commodity, duration of the derivative contracts and expected loss severity. Expected loss severity is based on historical losses for similarly risk graded commercial loan customers. Decreases in counterparty credit rating or grading and increases in price volatility and expected loss severity all tend to increase the credit quality adjustment which reduces the fair value of asset contracts. The reduction in fair value is recognized in earnings during the current period.

We also consider our own credit risk in determining the fair value of derivative contracts. Changes in our credit rating would affect the fair value of our derivative liabilities. In the event of a credit downgrade, the fair value of our derivative liabilities would increase. The change in the fair value would be recognized in earnings in the current period.
Residential Mortgage Loans Held for Sale
Residential mortgage loans held for sale are carried on the balance sheet at fair value. The fair values of residential mortgage loans held for sale are based upon quoted market prices of such loans sold in securitization transactions, including related unfunded loan commitments.

Other Assets - Private Equity Funds
The fair value of the portfolio investments of the Company's two private equity funds are based upon net asset value reported by the underlying funds, as adjusted by the general partner when necessary to represent the price that would be received to sell the assets. The Company's private equity funds provide customers alternative investment opportunities as limited partners of the funds. As fund of funds, the private equity funds invest in other limited partnerships or limited liability companies that invest substantially all of their assets in U.S. companies pursuing diversified investment strategies including early-stage venture capital, distressed securities and corporate or asset buy-outs. Private equity fund assets are long-term, illiquid investments. No secondary market exists for these assets. The private equity funds typically invest in funds that provide no redemption rights to investors. The fair value of the private equity investments may only be realized through cash distributions from the underlying funds.

The following represents the changes for the three months ended June 30, 2014 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, March 31, 2014
 
$
15,523

 
$
4,712

 
$
—

 
$
27,466

Transfer to Level 3 from Level 2
 
—

 
—

 
—

 
—

Purchases and capital calls
 
—

 
—

 
—

 
220

Redemptions and distributions
 
(5,165
)
 
(500
)
 
—

 
(2,076
)
Gain (loss) recognized in earnings:
 
 
 
 
 
 
 
 
Gain on other assets, net
 
—

 
—

 
—

 
2,223

Loss on available for sale securities, net
 
(157
)
 
—

 
—

 
—

Charitable contributions to BOKF Foundation
 
—

 
—

 
—

 
—

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
244

 
19

 
—

 
—

Balance, June 30, 2014
 
$
10,445

 
$
4,231

 
$
—

 
$
27,833


The following represents the changes for the six months ended June 30, 2014 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, December 31, 2013
 
$
17,805

 
$
4,712

 
$
4,207

 
$
27,341

Transfer to Level 3 from Level 2
 
—

 
—

 
—

 
—

Purchases and capital calls
 
—

 
—

 
—

 
425

Redemptions and distributions
 
(7,487
)
 
(500
)
 
—

 
(3,181
)
Gain (loss) recognized in earnings:
 
 
 
 
 
 
 
 
Gain on other assets, net
 
—

 
—

 
—

 
3,248

Loss on available for sale securities, net
 
(235
)
 
—

 
—

 
—

Charitable contributions to BOKF Foundation
 
—

 
—

 
(2,420
)
 
—

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
362

 
19

 
(1,787
)
 
—

Balance, June 30, 2014
 
$
10,445

 
$
4,231

 
$
—

 
$
27,833


The following represents the changes for the six months ended June 30, 2013 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, March 31, 2013
 
$
39,007

 
$
5,193

 
$
2,472

 
$
29,216

Transfer to Level 3 from Level 2
 
—

 
—

 
—

 
—

Purchases, and capital calls
 
—

 
—

 
—

 
148

Redemptions and distributions
 
—

 
—

 
—

 
(1,005
)
Gain (loss) recognized in earnings
 
 
 
 
 
 
 
 
Gain on other assets, net
 
—

 
—

 
—

 
20

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
(160
)
 
—

 
(225
)
 
—

Balance, June 30, 2013
 
$
38,847

 
$
5,193

 
$
2,247

 
$
28,379


The following represents the changes for the three months ended June 30, 2013 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, December 31, 2012
 
$
40,702

 
$
5,399

 
$
2,161

 
$
28,169

Transfer to Level 3 from Level 2
 
—

 
—

 
—

 
—

Purchases, and capital calls
 
—

 
—

 
—

 
640

Redemptions and distributions
 
(98
)
 
—

 
—

 
(1,835
)
Gain (loss) recognized in earnings
 
 
 
 
 
 
 
 
Gain on other assets, net
 
—

 
—

 
—

 
1,405

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
(1,757
)
 
(206
)
 
86

 
—

Balance, June 30, 2013
 
$
38,847

 
$
5,193

 
$
2,247

 
$
28,379




A summary of quantitative information about assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as of June 30, 2014 follows (in thousands):
Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Par
Value
 
Amortized
Cost
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
$
10,970

 
$
10,903

 
$
10,445

 
Discounted cash flows
1 
Interest rate spread
 
4.91%-5.21% (5.17%)
2 
95.11%-96.13% (95.38%)
3 
Other debt securities
 
4,400

 
4,400

 
4,231

 
Discounted cash flows
1 
Interest rate spread
 
4.38%-5.65% (5.51%)
4 
95.11% - 95.28 (95.17%)
3 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
27,834

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 480 to 508 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.

The fair value of these securities measured at fair value using significant unobservable inputs are sensitive primarily to changes in interest rate spreads. At June 30, 2014, for tax-exempt securities rated investment grade by all nationally-recognized rating agencies, a 100 basis point increase in the spreads over average yields for comparable securities would result in an additional decrease in the fair value of $101 thousand. For taxable securities rated investment grade by all nationally-recognized rating agencies, a 100 basis point increase in the spreads over average yield for comparable securities would result in an additional decrease in the fair value of $41 thousand.

A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of December 31, 2013 follows (in thousands):
Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
Par
Value
 
Amortized
Cost
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
$
18,695

 
$
18,624

 
$
17,805

 
Discounted cash flows
1 
Interest rate spread
 
4.97%-5.27% (5.16%)
2 
95.02%-95.50% (95.24%)
3 
Other debt securities
 
4,900

 
4,900

 
4,712

 
Discounted cash flows
1 
Interest rate spread
 
5.67% (5.67%)
4 
96.16% (96.16%)
3 
Equity securities and mutual funds
 
N/A
 
2,420

 
4,207

 
Publicly announced preliminary purchase price information from acquirer.
 
Discount for settlement uncertainty.
 
N/A
5 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
27,341

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 467 to 518 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.
5 
Fair value of shares of a smaller privately-held financial institution were valued using preliminary announced purchase information by a publicly-traded acquirer.

A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2013 follows (in thousands):

Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
Par
Value
 
Amortized
Cost6
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Investment grade
 
$
28,470

 
$
28,375

 
$
27,116

 
Discounted cash flows
1 
Interest rate spread
 
4.99%-5.49% (5.24%)
2 
95.01%-95.60% (95.25%)
3 
Below investment grade
 
17,000

 
12,384

 
11,731

 
Discounted cash flows
1 
Interest rate spread
 
9.15%-11.19% (9.87%)
4 
68.91%-69.09% (69.01%)
3 
Total municipal and other tax-exempt securities
 
45,470

 
40,759

 
38,847

 
 
 
 
 
 
 
Other debt securities
 
5,400

 
5,400

 
5,193

 
Discounted cash flows
1 
Interest rate spread
 
4.41%-5.69% (5.48%)
5 
96.13% - 96.16 (96.16%)
3 
Equity securities and mutual funds
 
N/A
 
2,420

 
2,247

 
Tangible book value per share of publicly traded financial institutions of similar size, less liquidity discount.
 
Peer group tangible book per share and liquidity discount.
 
N/A
7 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
28,379

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 457 to 520 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields determined using a spread of 700 basis points over comparable municipal securities of varying durations.
5 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.
6 
Amortized cost reduced by other-than-temporary impairments recorded in earnings. See Note 2 for additional discussion.
7 
Fair value of shares of a smaller privately-held financial institution were valued using the tangible book value per share of similarly sized financial institutions within the immediate geographical market with a discount of 20% due to the liquidity of the shares.


Fair Value of Assets and Liabilities Measured on a Non-Recurring Basis

Assets measured at fair value on a non-recurring basis include collateral for certain impaired loans and real property and other assets acquired to satisfy loans, which are based primarily on comparisons to completed sales of similar assets.

The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2014 for which the fair value was adjusted during the six months ended June 30, 2014:
 
 
 
 
 
 
 
Fair Value Adjustments for the
 
 
 
 
 
Carrying Value at June 30, 2014
 
Three Months Ended
June 30, 2014
Recognized in:
 
Six Months Ended
June 30, 2014
Recognized in:
 
Quoted Prices
in Active Markets for Identical Instruments
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
Impaired loans
$
—

 
$
5,182

 
$
65

 
$
949

 
$
—

 
$
1,627

 
$
—

Real estate and other repossessed assets
—

 
8,303

 
27

 
—

 
(21
)
 
—

 
1,308

 
The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2013 for which the fair value was adjusted during the six months ended June 30, 2013:
 
 
 
 
 
 
 
Fair Value Adjustments for the
 
 
 
 
 
Carrying Value at June 30, 2013
 
Three Months Ended
June 30, 2013
Recognized in:
 
Six Months Ended
June 30, 2013
Recognized in:
 
Quoted Prices
in Active Markets for Identical Instruments
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
Impaired loans
$
—

 
$
10,245

 
$
4,930

 
$
5,060

 
$
—

 
$
6,601

 
$
—

Real estate and other repossessed assets
—

 
7,949

 
271

 
—

 
863

 
—

 
1,014



The fair value of collateral-dependent impaired loans and real estate and other repossessed assets and the related fair value adjustments are generally based on unadjusted third-party appraisals. Our appraisal review policies require appraised values to be supported by observed inputs derived principally from or corroborated by observable market data. Appraisals that are not based on observable inputs or that require significant adjustments or fair value measurements that are not based on third-party appraisals are considered to be based on significant unobservable inputs. Non-recurring fair value measurements of collateral-dependent impaired loans and real estate and other repossessed assets based on significant unobservable inputs are generally due to estimates of current fair values between appraisal dates. Significant unobservable inputs include listing prices for the same or comparable assets, uncorroborated expert opinions or management's knowledge of the collateral or industry. These inputs are developed by asset management and workout professionals and approved by senior Credit Administration executives.

A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2014 follows (in thousands):
Quantitative Information about Level 3 Non-recurring Fair Value Measurements
 
 
Fair Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
Impaired loans
 
$
65

 
Appraised value, as adjusted
 
Broker quotes and management's knowledge of industry and collateral.
 
N/A
Real estate and other repossessed assets
 
$
27

 
Listing value, less cost to sell
 
Marketability adjustment off appraised value
 
77%1

1 
Marketability adjustments include consideration of estimated costs to sell, which is approximately 10% of fair value.


A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2013 follows (in thousands):
Quantitative Information about Level 3 Non-recurring Fair Value Measurements
 
 
Fair Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
Impaired loans
 
$
4,930

 
Appraised value, as adjusted
 
Broker quotes and management's knowledge of industry and collateral.
 
N/A
Real estate and other repossessed assets
 
271

 
Listing value, less cost to sell
 
Marketability adjustments off appraised value
 
71%-81% (76%)1
1 
Marketability adjustments include consideration of estimated costs to sell, which is approximately 15% of fair value.
Fair Value of Financial Instruments

The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of June 30, 2014 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
615,479

 
 
 
 
 
 
 
$
615,479

Interest-bearing cash and cash equivalents
 
732,395

 
 
 
 
 
 
 
732,395

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
19,027

 
 
 
 
 
 
 
19,027

U.S. agency residential mortgage-backed securities
 
13,540

 
 
 
 
 
 
 
13,540

Municipal and other tax-exempt securities
 
32,950

 
 
 
 
 
 
 
32,950

Other trading securities
 
35,580

 
 
 
 
 
 
 
35,580

Total trading securities
 
101,097

 
 
 
 
 
 
 
101,097

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
425,221

 
 
 
 
 
 
 
429,051

U.S. agency residential mortgage-backed securities
 
41,973

 
 
 
 
 
 
 
44,176

Other debt securities
 
182,743

 
 
 
 
 
 
 
197,584

Total investment securities
 
649,937

 
 
 
 
 
 
 
670,811

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,024

 
 
 
 
 
 
 
1,024

Municipal and other tax-exempt
 
64,970

 
 
 
 
 
 
 
64,970

U.S. agency residential mortgage-backed securities
 
7,259,504

 
 
 
 
 
 
 
7,259,504

Privately issued residential mortgage-backed securities
 
179,042

 
 
 
 
 
 
 
179,042

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,115,295

 
 
 
 
 
 
 
2,115,295

Other debt securities
 
34,528

 
 
 
 
 
 
 
34,528

Perpetual preferred stock
 
24,730

 
 
 
 
 
 
 
24,730

Equity securities and mutual funds
 
20,053

 
 
 
 
 
 
 
20,053

Total available for sale securities
 
9,699,146

 
 
 
 
 
 
 
9,699,146

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
181,205

 
 
 
 
 
 
 
181,205

      Other securities
 
4,469

 
 
 
 
 
 
 
4,469

Total fair value option securities
 
185,674

 
 
 
 
 
 
 
185,674

Residential mortgage loans held for sale
 
325,875

 
 
 
 
 
 
 
325,875

Loans:
 
 

 
 
 
 
 
 
 
 

Commercial
 
8,367,661

 
0.16% - 30.00%
 
0.67

 
0.55% - 4.28%

 
8,244,031

Commercial real estate
 
2,654,978

 
0.38% - 18.00%
 
0.83

 
1.14% - 3.59%

 
2,635,903

Residential mortgage
 
2,008,215

 
1.20% - 18.00%
 
2.49

 
0.55% - 4.18%

 
2,043,551

Consumer
 
396,004

 
0.38% - 21.00%
 
0.49

 
1.07% - 3.79%

 
39,038

Total loans
 
13,426,858

 
 
 
 

 
 

 
12,962,523

Allowance for loan losses
 
(190,690
)
 
 
 
 

 
 

 
—

Loans, net of allowance
 
13,236,168

 
 
 
 

 
 

 
12,962,523

Mortgage servicing rights
 
155,740

 
 
 
 

 
 

 
155,740

Derivative instruments with positive fair value, net of cash margin
 
357,680

 
 
 
 

 
 

 
357,680

Other assets – private equity funds
 
27,834

 
 
 
 

 
 

 
27,834

Deposits with no stated maturity
 
17,956,038

 
 
 
 

 
 

 
17,956,038

Time deposits
 
2,615,826

 
0.03% - 9.64%
 
2.07

 
0.74% - 1.29%

 
2,623,086

Other borrowed funds
 
3,009,610

 
0.25% - 6.80%
 
—

 
0.09% - 2.62%

 
2,984,331

Subordinated debentures
 
347,890

 
0.91% - 5.00%
 
2.16

 
2.20
%
 
344,717

Derivative instruments with negative fair value, net of cash margin
 
297,851

 
 
 
 

 
 

 
297,851


The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of December 31, 2013 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
512,931

 
 
 
 
 
 
 
$
512,931

Interest-bearing cash and cash equivalents
 
574,282

 
 
 
 
 
 
 
574,282

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
34,120

 
 
 
 
 
 
 
34,120

U.S. agency residential mortgage-backed securities
 
21,011

 
 
 
 
 
 
 
21,011

Municipal and other tax-exempt securities
 
27,350

 
 
 
 
 
 
 
27,350

Other trading securities
 
9,135

 
 
 
 
 
 
 
9,135

Total trading securities
 
91,616

 
 
 
 
 
 
 
91,616

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
440,187

 
 
 
 
 
 
 
439,870

U.S. agency residential mortgage-backed securities
 
50,182

 
 
 
 
 
 
 
51,864

Other debt securities
 
187,509

 
 
 
 
 
 
 
195,393

Total investment securities
 
677,878

 
 
 
 
 
 
 
687,127

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,042

 
 
 
 
 
 
 
1,042

Municipal and other tax-exempt
 
73,775

 
 
 
 
 
 
 
73,775

U.S. agency residential mortgage-backed securities
 
7,716,010

 
 
 
 
 
 
 
7,716,010

Privately issued residential mortgage-backed securities
 
221,099

 
 
 
 
 
 
 
221,099

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,055,804

 
 
 
 
 
 
 
2,055,804

Other debt securities
 
35,241

 
 
 
 
 
 
 
35,241

Perpetual preferred stock
 
22,863

 
 
 
 
 
 
 
22,863

Equity securities and mutual funds
 
21,328

 
 
 
 
 
 
 
21,328

Total available for sale securities
 
10,147,162

 
 
 
 
 
 
 
10,147,162

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
157,431

 
 
 
 
 
 
 
157,431

      Other securities
 
9,694

 
 
 
 
 
 
 
9,694

Total fair value option securities
 
167,125

 
 
 
 
 
 
 
167,125

Residential mortgage loans held for sale
 
200,546

 
 
 
 
 
 
 
200,546

Loans:
 
 

 
 
 
 

 
 

 
 

Commercial
 
7,943,221

 
0.04% - 30.00%
 
0.49

 
0.48% - 4.33%

 
7,835,325

Commercial real estate
 
2,415,353

 
0.38% - 18.00%
 
0.78

 
1.21% - 3.49%

 
2,394,443

Residential mortgage
 
2,052,026

 
0.38% - 18.00%
 
2.63

 
0.59% - 4.73%

 
2,068,690

Consumer
 
381,664

 
0.38% - 21.00%
 
0.55

 
1.22% - 3.75%

 
375,962

Total loans
 
12,792,264

 
 
 
 

 
 

 
12,674,420

Allowance for loan losses
 
(185,396
)
 
 
 
 

 
 

 
—

Loans, net of allowance
 
12,606,868

 
 
 
 

 
 

 
12,674,420

Mortgage servicing rights
 
153,333

 
 
 
 

 
 

 
153,333

Derivative instruments with positive fair value, net of cash margin
 
265,012

 
 
 
 

 
 

 
265,012

Other assets – private equity funds
 
27,341

 
 
 
 

 
 

 
27,341

Deposits with no stated maturity
 
17,573,334

 
 
 
 

 
 

 
17,573,334

Time deposits
 
2,695,993

 
0.01% - 9.64%
 
2.12

 
0.75% - 1.33%

 
2,697,290

Other borrowed funds
 
2,721,888

 
0.25% - 4.78%
 
0.03

 
0.08% - 2.64%

 
2,693,788

Subordinated debentures
 
347,802

 
0.95% - 5.00%
 
2.63

 
2.22
%
 
344,783

Derivative instruments with negative fair value, net of cash margin
 
247,185

 
 
 
 

 
 

 
247,185


The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of June 30, 2013 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
507,551

 
 
 
 
 
 
 
$
507,551

Interest-bearing cash and cash equivalents
 
570,836

 
 
 
 
 
 
 
570,836

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
60,713

 
 
 
 
 
 
 
60,713

U.S. agency residential mortgage-backed securities
 
43,858

 
 
 
 
 
 
 
43,858

Municipal and other tax-exempt securities
 
53,819

 
 
 
 
 
 
 
53,819

Other trading securities
 
32,201

 
 
 
 
 
 
 
32,201

Total trading securities
 
190,591

 
 
 
 
 
 
 
190,591

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
375,317

 
 
 
 
 
 
 
371,690

U.S. agency residential mortgage-backed securities
 
64,172

 
 
 
 
 
 
 
66,796

Other debt securities
 
176,301

 
 
 
 
 
 
 
187,219

Total investment securities
 
615,790

 
 
 
 
 
 
 
625,705

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,060

 
 
 
 
 
 
 
1,060

Municipal and other tax-exempt
 
95,103

 
 
 
 
 
 
 
95,103

U.S. agency residential mortgage-backed securities
 
8,372,795

 
 
 
 
 
 
 
8,372,795

Privately issued residential mortgage-backed securities
 
297,175

 
 
 
 
 
 
 
297,175

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
1,846,943

 
 
 
 
 
 
 
1,846,943

Other debt securities
 
35,894

 
 
 
 
 
 
 
35,894

Perpetual preferred stock
 
25,583

 
 
 
 
 
 
 
25,583

Equity securities and mutual funds
 
23,521

 
 
 
 
 
 
 
23,521

Total available for sale securities
 
10,698,074

 
 
 
 
 
 
 
10,698,074

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
203,816

 
 
 
 
 
 
 
203,816

Other securities
 
1,940

 
 
 
 
 
 
 
1,940

Total fair value option securities
 
205,756

 
 
 
 
 
 
 
205,756

Residential mortgage loans held for sale
 
301,057

 
 
 
 
 
 
 
301,057

Loans:
 
 

 
 
 
 
 
 
 
 

Commercial
 
7,708,120

 
0.25% - 30.00%
 
0.63

 
0.59% - 4.19%

 
7,638,327

Commercial real estate
 
2,317,096

 
0.38% - 18.00%
 
0.83

 
1.23% - 3.47%

 
2,288,188

Residential mortgage
 
2,039,785

 
0.38% - 18.00%
 
3.64

 
0.70% - 4.46%

 
2,038,375

Consumer
 
375,781

 
0.38% - 21.00%
 
0.35

 
1.26% - 3.74%

 
369,375

Total loans
 
12,440,782

 
 
 
 

 
 

 
12,334,265

Allowance for loan losses
 
(203,124
)
 
 
 
 

 
 

 
—

Loans, net of allowance
 
12,237,658

 
 
 
 

 
 

 
12,334,265

Mortgage servicing rights
 
132,889

 
 
 
 

 
 

 
132,889

Derivative instruments with positive fair value, net of cash margin
 
546,206

 
 
 
 

 
 

 
546,206

Other assets – private equity funds
 
28,379

 
 
 
 

 
 

 
28,379

Deposits with no stated maturity
 
16,728,258

 
 
 
 

 
 

 
16,728,258

Time deposits
 
2,767,972

 
0.03% - 9.64%
 
2.02

 
0.76% - 1.30%

 
2,781,202

Other borrowed funds
 
4,073,915

 
0.25% - 5.25%
 
—

 
0.07% - 2.66%

 
4,034,685

Subordinated debentures
 
347,716

 
0.97% - 5.00%
 
3.10

 
2.24
%
 
345,201

Derivative instruments with negative fair value, net of cash margin
 
521,991

 
 
 
 

 
 

 
521,991


Because no market exists for certain of these financial instruments and management does not intend to sell these financial instruments, the fair values shown in the tables above may not represent values at which the respective financial instruments could be sold individually or in the aggregate at the given reporting date.

The following methods and assumptions were used in estimating the fair value of these financial instruments:
 
Cash and Cash Equivalents
 
The book value reported in the consolidated balance sheets for cash and short-term instruments approximates those assets’ fair values.
 
Securities
 
The fair values of securities are generally based on Significant Other Observable Inputs such as quoted prices for comparable instruments or interest rates and credit spreads, yield curves, volatilities, prepayment speeds and loss severities. 

Loans
 
The fair value of loans, excluding loans held for sale, are based on discounted cash flow analyses using interest rates and credit and liquidity spreads currently being offered for loans with similar remaining terms to maturity and risk, adjusted for the impact of interest rate floors and ceilings which are classified as Significant Unobservable Inputs. The fair values of loans were estimated to approximate their discounted cash flows less loan loss allowances allocated to these loans of $164 million at June 30, 2014, $157 million at December 31, 2013 and $161 million at June 30, 2013.
 
Deposits
 
The fair values of time deposits are based on discounted cash flow analyses using interest rates currently being offered on similar transactions which are considered Significant Unobservable Inputs. Estimated fair value of deposits with no stated maturity, which includes demand deposits, transaction deposits, money market deposits and savings accounts, is equal to the amount payable on demand. Although market premiums paid reflect an additional value for these low cost deposits, adjusting fair value for the expected benefit of these deposits is prohibited. Accordingly, the positive effect of such deposits is not included in the tables above.
 
Other Borrowings and Subordinated Debentures
 
The fair values of these instruments are based upon discounted cash flow analyses using interest rates currently being offered on similar instruments which are considered Significant Unobservable Inputs.

Off-Balance Sheet Instruments
 
The fair values of commercial loan commitments are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements. The fair values of these off-balance sheet instruments were not significant at June 30, 2014, December 31, 2013 or June 30, 2013.
Fair Value Election

As more fully disclosed in Note 2 and Note 6 to the Consolidated Financial Statements, the Company has elected to carry all residential mortgage-backed securities which have been designated as economic hedges against changes in the fair value of mortgage servicing rights, certain corporate debt securities economically hedged by derivative contracts to manage interest rate risk and all residential mortgage loans originated for sale at fair value. Changes in the fair value of these financial instruments are recognized in earnings.
Federal and State Income Taxes
Federal and State Income Taxes
(13) Federal and State Income Taxes

The reconciliations of income (loss) attributable to continuing operations at the U.S. federal statutory tax rate to income tax expense are as follows (in thousands):
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Amount:
 
 
 
 
 
 
 
 
Federal statutory tax
 
$
39,886

 
$
42,459

 
$
79,976

 
$
90,113

Tax exempt revenue
 
(2,099
)
 
(1,803
)
 
(4,090
)
 
(3,545
)
Effect of state income taxes, net of federal benefit
 
2,457

 
3,122

 
5,327

 
6,500

Utilization of tax credits
 
(2,836
)
 
(1,826
)
 
(5,466
)
 
(3,548
)
Bank-owned life insurance
 
(784
)
 
(993
)
 
(1,552
)
 
(1,878
)
Charitable contributions to BOKF Foundation
 
—

 
—

 
(427
)
 
—

Other, net
 
606

 
464

 
963

 
877

Total
 
$
37,230

 
$
41,423

 
$
74,731

 
$
88,519


 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Percent of pretax income:
 
 
 
 
 
 
 
 
Federal statutory tax
 
35
 %
 
35
 %
 
35
 %
 
35
 %
Tax exempt revenue
 
(2
)
 
(1
)
 
(2
)
 
(1
)
Effect of state income taxes, net of federal benefit
 
3

 
3

 
3

 
2

Utilization of tax credits
 
(2
)
 
(2
)
 
(2
)
 
(1
)
Bank-owned life insurance
 
(1
)
 
(1
)
 
(1
)
 
(1
)
Charitable contributions to BOKF Foundation
 
—

 
—

 
—

 
—

Other, net
 
—

 
—

 
—

 
—

Total
 
33
 %
 
34
 %
 
33
 %
 
34
 %
Subsequent Events
Subsequent Events
(14) Subsequent Events

The Company evaluated events from the date of the consolidated financial statements on June 30, 2014 through the issuance of those consolidated financial statements included in this Quarterly Report on Form 10-Q. No events were identified requiring recognition in and/or disclosure in the consolidated financial statements.
Significant Accounting Policies (Policies)
Principles of Consolidation [Policy Text Block] 
The unaudited consolidated financial statements include accounts of BOK Financial and its subsidiaries, principally BOKF, NA (“the Bank”), BOSC, Inc., The Milestone Group, Inc. and Cavanal Hill Investment Management Inc. Operating divisions of the Bank include Bank of Albuquerque, Bank of Arizona, Bank of Arkansas, Bank of Oklahoma, Bank of Texas, Colorado State Bank and Trust, Bank of Kansas City, BOK Financial Mortgage and the TransFund electronic funds network.

Reclassification, Policy [Policy Text Block] 
Certain reclassifications have been made to conform to the current period presentation.
Newly Adopted and Pending Accounting Policies [Policy Text Block] 
Newly Adopted and Pending Accounting Policies

Financial Accounting Standards Board (“FASB”)

FASB Accounting Standards Update No. 2013-08, Financial Services – Investment Companies (Topic 946): Amendments to the Scope, Measurement, and Disclosure Requirements (ASU 2013-08)

On June 7, 2013, the FASB issued ASU 2013-08 which amends the criteria an entity would need to meet to qualify as an investment company under ASC 946, Financial Services - Investment Companies. ASU 2013-08 also provides additional implementation guidance for the assessment and requires additional disclosures. ASU 2013-08 was effective prospectively during interim and annual periods beginning after December 15, 2013, with early adoption prohibited. The adoption of ASU 2013-08 did not have a material impact on the Company's consolidated financial statements.

FASB Accounting Standards Update No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects (ASU 2014-01)

On January 15, 2014, the FASB issued ASU 2014-01 to simplify the amortization method an entity uses and modify the criteria to elect a measurement and presentation alternative, including the simplified amortization method, for certain investments in qualified affordable housing projects. This alternative permits the entity to present the investment's performance net of the related tax benefits as part of income tax expense. ASU 2014-01 is effective for the Company for interim and annual periods beginning after December 15, 2014. Early adoption is permitted. Adoption of ASU 2014-01 may affect income statement presentation, but otherwise is not expected to have a material impact on the Company's consolidated financial statements.

FASB Accounting Standards Update No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans Upon Foreclosure

On January 17, 2014, the FASB issued ASU 2014-04 to clarify when an entity is considered to have obtained physical possession (from an in-substance possession or foreclosure) of a residential real estate property collateralizing a mortgage loan. Upon physical possession of such real property, an entity is required to reclassify the nonperforming mortgage loan to other real estate owned. ASU 2014-04 is effective for the Company for interim and annual periods beginning after December 15, 2014. Early adoption is permitted. Adoption of ASU 2014-04 is not expected to have a material impact on the Company's consolidated financial statements.
Derivatives, Policy [Policy Text Block] 
Derivative instruments may be used by the Company as part of its interest rate risk management programs or may be offered to customers. All derivative instruments are carried at fair value and changes in fair value are reported in earnings as they occur. Credit risk is also considered in determining fair value.

When bilateral netting agreements or similar arrangements exist between the Company and its counterparties that create a single legal claim or obligation to pay or receive the net amount in settlement of the individual derivative contracts, the Company reports derivative assets and liabilities on a net by derivative contract type by counterparty basis.

Derivative contracts may require the Company to provide or receive cash margin as collateral for derivative assets and liabilities. Derivative assets and liabilities are reported net of cash margin when certain conditions are met. In addition, derivative contracts executed with customers under Customer Risk Management Programs may be secured by non-cash collateral in conjunction with a credit agreement with that customer. Access to collateral, in the event of default is reasonably assured. As of June 30, 2014, a decrease in BOK Financial's credit rating to below investment grade would increase our obligation to post cash margin on existing contracts by approximately $21 million.
 
None of these derivative contracts have been designated as hedging instruments.

Customer Risk Management Programs
 
BOK Financial offers programs to permit its customers to manage various risks, including fluctuations in energy, cattle and other agricultural products, and foreign exchange rates, or to take positions in derivative contracts. Customers may also manage interest rate risk through interest rate swaps used by borrowers to modify interest rate terms of their loans or to-be-announced securities used by mortgage banking customers to hedge their loan production. Derivative contracts are executed between the customers and BOK Financial. Offsetting contracts are executed between BOK Financial and other selected counterparties to minimize the risk of changes in commodity prices, interest rates or foreign exchange rates. The counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to BOK Financial as profit and compensation for administrative costs and credit risk which is recognized over the life of the contracts and included in other operating revenue – brokerage and trading revenue in the Consolidated Statements of Earnings.
 
Interest Rate Risk Management Programs
 
BOK Financial may use derivative contracts in managing its interest rate sensitivity and as part of its economic hedge of the change in the fair value of mortgage servicing rights. Interest rate swaps are generally used to reduce overall asset sensitivity by converting specific fixed-rate liabilities to floating-rate based on LIBOR. As of June 30, 2014, BOK Financial had interest rate swaps with a notional value of $47 million used as part of the economic hedge of the change in the fair value of the mortgage servicing rights.

As discussed in Note 6, certain derivative contracts not designated as hedging instruments related to mortgage loan commitments and forward sales contracts are included in Residential mortgage loans held for sale on the Consolidated Balance Sheets. See Note 6 for additional discussion of notional, fair value and impact on earnings of these contracts. Forward sales contracts are not considered swaps under the Commodity and Futures Trading Commission final rules.

Loans and Allowances for Credit Losses, Loans [Policy Text Block] 
Loans

Loans are either secured or unsecured based on the type of loan and the financial condition of the borrower. Repayment is generally expected from cash flow or proceeds from the sale of selected assets of the borrower. BOK Financial is exposed to risk of loss on loans due to the borrower’s difficulties, which may arise from any number of factors, including problems within the respective industry or local economic conditions. Access to collateral, in the event of borrower default, is reasonably assured through adherence to applicable lending laws and through sound lending standards and credit review procedures. Accounting policies for all loans, excluding residential mortgage loans guaranteed by U.S. government agencies, are as follows.

Interest is accrued at the applicable interest rate on the principal amount outstanding. Loans are placed on nonaccruing status when, in the opinion of management, full collection of principal or interest is uncertain. Internally risk graded loans are individually evaluated for nonaccruing status quarterly. Non-risk graded loans are generally placed on nonaccruing status when more than 90 days past due or within 60 days of being notified of the borrower's bankruptcy filing. Interest previously accrued but not collected is charged against interest income when the loan is placed on nonaccruing status. Payments on nonaccruing loans are applied to principal or recognized as interest income, according to management’s judgment as to the collectability of principal. Loans may be returned to accruing status when, in the opinion of management, full collection of principal and interest, including principal previously charged off, is probable based on improvements in the borrower’s financial condition or a sustained period of performance.

Loans to borrowers experiencing financial difficulties may be modified in troubled debt restructurings ("TDRs"). All TDRs are classified as nonaccruing. Modifications generally consist of extension of payment terms or interest rate concessions and may result either voluntarily through negotiations with the borrower or involuntarily through court order. Generally, principal and accrued but unpaid interest is not voluntarily forgiven.

Performing loans may be renewed under then current collateral value, debt service ratio and other underwriting standards. Nonaccruing loans may be renewed and will remain classified as nonaccruing. 

All loans are charged off when the loan balance or a portion of the loan balance is no longer supported by the paying capacity of the borrower or when the required cash flow is reduced in a TDR. The charge-off amount is determined through a quarterly evaluation of available cash resources and collateral value and charge-offs are taken in the quarter in which the loss is identified. Non-risk graded loans that are past due between 60 and 180 days, based on the loan product type, are charged off. Loans to borrowers whose personal obligation has been discharged through Chapter 7 bankruptcy proceedings are charged off within 60 days of notice of the bankruptcy filing, regardless of payment status.

Loan origination and commitment fees and direct loan acquisition and origination costs are deferred and amortized as an adjustment to yield over the life of the loan or over the commitment period, as applicable.

Qualifying residential mortgage loans guaranteed by U.S. government agencies have been sold into GNMA pools. Under certain performance conditions specified in government programs, the Company may have the right, but not the obligation to repurchase loans from GNMA pools. These loans no longer qualify for sale accounting and are recognized in the Consolidated Balance Sheets. Guaranteed loans are considered impaired because we do not expect to receive all principal and interest based on the loan's contractual terms. The principal balance continues to be guaranteed; however, interest accrues at a curtailed rate as specified in the programs. The carrying value of these loans is reduced based on an estimate of the expected cash flows discounted at the original note rate plus a liquidity spread. Guaranteed loans may be modified in TDRs in accordance with U.S. government agency guidelines. Interest continues to accrue based on the modified rate. Guaranteed loans may either be resold into GNMA pools after a performance period specified by the programs or foreclosed and conveyed to the guarantors.

Loans are disaggregated into portfolio segments and further disaggregated into classes. The portfolio segment is the level at which the Company develops and documents a systematic method for determining its allowance for credit losses. Classes are a further disaggregation of portfolio segments based on the risk characteristics of the loans and the Company’s method for monitoring and assessing credit risk.
Loans and Allowances for Credit Losses, Allowances for Credit Losses [Policy Text Block] 
Allowances for Credit Losses

BOK Financial maintains an allowance for loan losses and an accrual for off-balance sheet credit risk. The accrual for off-balance sheet credit risk is maintained at a level that is appropriate to cover estimated losses associated with credit instruments that are not currently recognized as assets such as loan commitments, standby letters of credit or guarantees. As discussed in greater detail in Note 6, the Company also has separate accruals for off-balance sheet credit risk related to residential mortgage loans previously sold with full or partial recourse and for residential mortgage loans sold to government sponsored agencies under standard representations and warranties.

The appropriateness of the allowance for loan losses and accrual for off-balance sheet credit losses (collectively "allowance for credit losses") is assessed by management based on an on-going quarterly evaluation of the probable estimated losses inherent in the portfolio, including probable losses on both outstanding loans and unused commitments.

The allowance for loan losses consists of specific allowances attributed to impaired loans that have not yet been charged down to amounts we expect to recover, general allowances for unimpaired loans based on estimated loss rates by loan class and nonspecific allowances based on general economic conditions, risk concentration and related factors. There have been no material changes in the approach or techniques utilized in developing the allowance for loan losses and the accrual for off-balance sheet credit losses for the three and six months ended June 30, 2014.

Loans are considered to be impaired when it becomes probable that BOK Financial will be unable to collect all amounts due according to the contractual terms of the loan agreements. Internally risk graded loans are evaluated individually for impairment. Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk graded based on evaluation of the borrowers' ability to repay. Certain commercial loans and most residential mortgage and consumer loans are small balance, homogeneous pools of loans that are not risk graded. Non-risk graded loans are identified as impaired based on performance status. Generally, non-risk graded loans 90 days or more past due or modified in a TDR or in bankruptcy are considered to be impaired.

Specific allowances for impaired loans are measured by an evaluation of estimated future cash flows discounted at the loans’ initial effective interest rate or the fair value of collateral for certain collateral dependent loans. Collateral value of real property is generally based on third party appraisals that conform to Uniform Standards of Professional Appraisal Practice, less estimated selling costs. Appraised values are on an "as-is" basis and are generally not adjusted by the Company. Updated appraisals are obtained at least annually or more frequently if market conditions indicate collateral values have declined. Collateral value of mineral rights is generally determined by our internal staff of engineers based on projected cash flows under current market conditions. Collateral values and available cash resources that support impaired loans are evaluated quarterly. Historical statistics may be used as a practical way to estimate impairment in limited situations, such as when a collateral dependent loan is identified as impaired at the end of a reporting period, until an updated appraisal of collateral value is received or a full assessment of future cash flows is completed. Estimates of future cash flows and collateral values require significant judgments and may be volatile.

General allowances for unimpaired loans are based on estimated loss rates by loan class. The gross loss rate for each loan class is determined by the greater of the current gross loss rate based on the most recent twelve months or a ten-year gross loss rate. Recoveries are not directly considered in the estimation of loss rates. Recoveries generally do not follow predictable patterns and are not received until well after the charge-off date as a result of protracted legal actions. For risk graded loans, gross loss rates are adjusted for changes in risk grading. For each loan class, the current weighted average risk grade is compared to the long-term average risk grade. This comparison determines whether credit risk in each loan class is increasing or decreasing. Loss rates are adjusted upward or downward in proportion to changes in average risk grading. General allowances for unimpaired loans also consider inherent risks identified for each loan class. Inherent risks consider loss rates that most appropriately represent the current credit cycle and other factors attributable to specific loan classes which have not yet been represented in the gross loss rates or risk grading. These factors include changes in commodity prices or engineering imprecision, which may affect the value of reserves that secure our energy loan portfolio, construction risk that may affect commercial real estate loans, changes in regulations and public policy that may disproportionately impact health care loans and changes in loan products.

Nonspecific allowances are maintained for risks beyond factors specific to a particular loan or loan class. These factors include trends in the economy of our primary lending areas, concentrations in large balance loans and other relevant factors.

An accrual for off-balance sheet credit losses is included in Other liabilities in the Consolidated Balance Sheets. The appropriateness of this accrual is determined in the same manner as the allowance for loan losses.

A provision for credit losses is charged against or credited to earnings in amounts necessary to maintain an appropriate allowance for credit losses. Recoveries of loans previously charged off are added to the allowance when received.
Securities (Tables)
Trading Securities [Table Text Block] 
The fair value and net unrealized gain (loss) included in trading securities is as follows (in thousands):
 
 
 
June 30, 2014
 
December 31, 2013
 
June 30, 2013
 
 
Fair Value
 
Net Unrealized Gain (Loss)
 
Fair Value
 
Net Unrealized Gain (Loss)
 
Fair
Value
 
Net Unrealized Gain (Loss)
U.S. Government agency debentures
 
$
19,027

 
$
6

 
$
34,120

 
$
77

 
$
60,713

 
$
(552
)
U.S. agency residential mortgage-backed securities
 
13,540

 
3

 
21,011

 
123

 
43,858

 
38

Municipal and other tax-exempt securities
 
32,950

 
28

 
27,350

 
(182
)
 
53,819

 
(1,271
)
Other trading securities
 
35,580

 
20

 
9,135

 
(7
)
 
32,201

 
(717
)
Total
 
$
101,097

 
$
57

 
$
91,616

 
$
11

 
$
190,591

 
$
(2,502
)
Investment Securities (Held-to-Maturity) [Table Text Block] 
The amortized cost and fair values of investment securities are as follows (in thousands):

 
 
June 30, 2014
 
 
Amortized
 
Carrying
 
Fair
 
Gross Unrealized2
 
 
Cost
 
Value1
 
Value
 
Gain
 
Loss
Municipal and other tax-exempt
 
$
425,221

 
$
425,221

 
$
429,051

 
$
4,442

 
$
(612
)
U.S. agency residential mortgage-backed securities – Other
 
40,879

 
41,973

 
44,176

 
2,203

 
—

Other debt securities
 
182,743

 
182,743

 
197,584

 
14,914

 
(73
)
Total
 
$
648,843

 
$
649,937

 
$
670,811

 
$
21,559

 
$
(685
)
1 
Carrying value includes $1.1 million of net unrealized gain which remains in Accumulated other comprehensive income (“AOCI”) in the Consolidated Balance Sheets related to certain securities transferred from the Available for Sale securities portfolio to the Investment securities portfolio as discussed in greater detail following.
2 
Gross unrealized gains and losses are not recognized in AOCI in the Consolidated Balance Sheets.
 
 
December 31, 2013
 
 
Amortized
 
Carrying
 
Fair
 
Gross Unrealized2
 
 
Cost
 
Value1
 
Value
 
Gain
 
Loss
Municipal and other tax-exempt
 
$
440,187

 
$
440,187

 
$
439,870

 
$
2,452

 
$
(2,769
)
U.S. agency residential mortgage-backed securities – Other
 
48,351

 
50,182

 
51,864

 
1,738

 
(56
)
Other debt securities
 
187,509

 
187,509

 
195,393

 
8,497

 
(613
)
Total
 
$
676,047

 
$
677,878

 
$
687,127

 
$
12,687

 
$
(3,438
)
1 
Carrying value includes $1.8 million of net unrealized gain which remains in Accumulated other comprehensive income (“AOCI”) in the Consolidated Balance Sheets related to certain securities transferred from the Available for Sale securities portfolio to the Investment securities portfolio as discussed in greater detail following.
2 
Gross unrealized gains and losses are not recognized in AOCI in the Consolidated Balance Sheets.
 
 
June 30, 2013
 
 
Amortized
 
Carrying
 
Fair
 
Gross Unrealized2
 
 
Cost
 
Value1
 
Value
 
Gain
 
Loss
Municipal and other tax-exempt
 
$
375,317

 
$
375,317

 
$
371,690

 
$
2,189

 
$
(5,816
)
U.S. agency residential mortgage-backed securities – Other
 
61,152

 
64,172

 
66,796

 
2,624

 
—

Other debt securities
 
176,301

 
176,301

 
187,219

 
10,978

 
(60
)
Total
 
$
612,770

 
$
615,790

 
$
625,705

 
$
15,791

 
$
(5,876
)
1 
Carrying value includes $3.0 million of net unrealized gain which remains in Accumulated other comprehensive income (“AOCI”) in the Consolidated Balance Sheets related to certain securities transferred from the Available for Sale securities portfolio to the Investment securities portfolio as discussed in greater detail following.
2 
Gross unrealized gains and losses are not recognized in AOCI in the Consolidated Balance Sheets.

During the three months ended September 30, 2011, the Company transferred certain U.S. government agency residential mortgage-backed securities from the available for sale portfolio to the investment securities (held-to-maturity) portfolio as the Company has the positive intent and ability to hold these securities to maturity. No gains or losses were recognized in the Consolidated Statement of Earnings at the time of the transfer. Transfers of debt securities into the investment securities portfolio (held-to-maturity) are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in accumulated other comprehensive income and in the carrying value of the investment securities portfolio.  Such amounts are amortized over the estimated remaining life of the security as an adjustment to yield, offsetting the related amortization of the premium or accretion of the discount on the transferred securities. At the time of transfer, the fair value totaled $131 million, amortized cost totaled $118 million and the pretax unrealized gain totaled $13 million.

The amortized cost and fair values of investment securities at June 30, 2014, by contractual maturity, are as shown in the following table (dollars in thousands):
 
 
Less than
One Year
 
One to
Five Years
 
Six to
Ten Years
 
Over
Ten Years
 
Total
 
Weighted
Average
Maturity²
Municipal and other tax-exempt:
 
 
 
 
 
 
 
 
 
 
 
 
Carrying value
 
$
36,962

 
$
296,908

 
$
52,328

 
$
39,023

 
$
425,221

 
4.14

Fair value
 
37,136

 
298,655

 
52,567

 
40,693

 
429,051

 
 
Nominal yield¹
 
1.99
%
 
1.70
%
 
2.64
%
 
5.35
%
 
2.18
%
 
 
Other debt securities:
 
 

 
 

 
 

 
 

 
 

 
 
Carrying value
 
12,853

 
32,853

 
47,576

 
89,461

 
182,743

 
8.32

Fair value
 
12,909

 
33,627

 
50,213

 
100,835

 
197,584

 
 
Nominal yield
 
3.54
%
 
4.78
%
 
5.37
%
 
6.32
%
 
5.60
%
 
 
Total fixed maturity securities:
 
 

 
 

 
 

 
 

 
 

 
 
Carrying value
 
$
49,815

 
$
329,761

 
$
99,904

 
$
128,484

 
$
607,964

 
5.39

Fair value
 
50,045

 
332,282

 
102,780

 
141,528

 
626,635

 
 

Nominal yield
 
2.39
%
 
2.01
%
 
3.94
%
 
6.02
%
 
3.20
%
 
 

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 
 

Carrying value
 
 

 
 

 
 

 
 

 
$
41,973

 
³

Fair value
 
 

 
 

 
 

 
 

 
44,176

 
 

Nominal yield4
 
 

 
 

 
 

 
 

 
2.74
%
 
 

Total investment securities:
 
 

 
 

 
 

 
 

 
 

 
 

Carrying value
 
 

 
 

 
 

 
 

 
$
649,937

 
 

Fair value
 
 

 
 

 
 

 
 

 
670,811

 
 

Nominal yield
 
 

 
 

 
 

 
 

 
3.17
%
 
 

1 
Calculated on a taxable equivalent basis using a 39% effective tax rate.
2 
Expected maturities may differ from contractual maturities, because borrowers may have the right to call or prepay obligations with or without penalty.
3 
The average expected lives of residential mortgage-backed securities were 2.9 years based upon current prepayment assumptions.
4 
The nominal yield on residential mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary - Unaudited for current yields on the investment securities portfolio.
Available For Sale Securities [Table Text Block] 
The amortized cost and fair value of available for sale securities are as follows (in thousands):
 
 
June 30, 2014
 
 
Amortized
 
Fair
 
Gross Unrealized1
 
 
 
 
Cost
 
Value
 
Gain
 
Loss
 
OTTI²
U.S. Treasury
 
$
1,023

 
$
1,024

 
$
1

 
$
—

 
$
—

Municipal and other tax-exempt
 
63,931

 
64,970

 
1,624

 
(585
)
 
—

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

U. S. government agencies:
 
 

 
 

 
 

 
 

 
 

FNMA
 
4,297,579

 
4,364,168

 
82,436

 
(15,847
)
 
—

FHLMC
 
2,055,924

 
2,068,940

 
27,019

 
(14,003
)
 
—

GNMA
 
815,201

 
820,454

 
8,850

 
(3,597
)
 
—

Other
 
5,489

 
5,942

 
453

 
—

 
—

Total U.S. government agencies
 
7,174,193

 
7,259,504

 
118,758

 
(33,447
)
 
—

Private issue:
 
 

 
 

 
 

 
 

 
 

Alt-A loans
 
70,880

 
75,700

 
4,820

 
—

 
—

Jumbo-A loans
 
97,939

 
103,342

 
5,889

 
—

 
(486
)
Total private issue
 
168,819

 
179,042

 
10,709

 
—

 
(486
)
Total residential mortgage-backed securities
 
7,343,012

 
7,438,546

 
129,467

 
(33,447
)
 
(486
)
Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,129,521

 
2,115,295

 
5,539

 
(19,765
)
 
—

Other debt securities
 
34,501

 
34,528

 
195

 
(168
)
 
—

Perpetual preferred stock
 
22,171

 
24,730

 
2,559

 
—

 
—

Equity securities and mutual funds
 
19,507

 
20,053

 
780

 
(234
)
 
—

Total
 
$
9,613,666

 
$
9,699,146

 
$
140,165

 
$
(54,199
)
 
$
(486
)
1 Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet.
2 Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.
 
 
December 31, 2013
 
 
Amortized
 
Fair
 
Gross Unrealized¹
 
 
 
 
Cost
 
Value
 
Gain
 
Loss
 
OTTI²
U.S. Treasury
 
$
1,042

 
$
1,042

 
$
—

 
$
—

 
$
—

Municipal and other tax-exempt
 
73,232

 
73,775

 
1,606

 
(1,063
)
 
—

Residential mortgage-backed securities:
 
 
 
 

 
 

 
 

 
 

U. S. government agencies:
 
 

 
 

 
 

 
 

 
 

FNMA
 
4,224,327

 
4,232,332

 
68,154

 
(60,149
)
 
—

FHLMC
 
2,308,341

 
2,293,943

 
25,813

 
(40,211
)
 
—

GNMA
 
1,151,225

 
1,152,128

 
9,435

 
(8,532
)
 
—

Other
 
36,296

 
37,607

 
1,311

 
—

 
—

Total U.S. government agencies
 
7,720,189

 
7,716,010

 
104,713

 
(108,892
)
 
—

Private issue:
 
 

 
 

 
 

 
 

 
 

Alt-A loans
 
104,559

 
107,212

 
4,386

 
—

 
(1,733
)
Jumbo-A loans
 
109,622

 
113,887

 
4,974

 
—

 
(709
)
Total private issue
 
214,181

 
221,099

 
9,360

 
—

 
(2,442
)
Total residential mortgage-backed securities
 
7,934,370

 
7,937,109

 
114,073

 
(108,892
)
 
(2,442
)
Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,100,146

 
2,055,804

 
1,042

 
(45,384
)
 
—

Other debt securities
 
35,061

 
35,241

 
368

 
(188
)
 
—

Perpetual preferred stock
 
22,171

 
22,863

 
705

 
(13
)
 
—

Equity securities and mutual funds
 
19,069

 
21,328

 
2,326

 
(67
)
 
—

Total
 
$
10,185,091

 
$
10,147,162

 
$
120,120

 
$
(155,607
)
 
$
(2,442
)
1 Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet.
2 Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.

 
 
June 30, 2013
 
 
Amortized
 
Fair
 
Gross Unrealized1
 
 
 
 
Cost
 
Value
 
Gain
 
Loss
 
OTTI²
U.S. Treasury
 
$
1,061

 
$
1,060

 
$
—

 
$
(1
)
 
$
—

Municipal and other tax-exempt
 
95,974

 
95,103

 
1,653

 
(1,870
)
 
(654
)
Residential mortgage-backed securities:
 
 
 
 
 
 
 
 
 
 
U. S. government agencies:
 
 

 
 

 
 

 
 

 
 

FNMA
 
4,648,337

 
4,687,141

 
78,285

 
(39,481
)
 
—

FHLMC
 
2,695,506

 
2,715,896

 
32,994

 
(12,604
)
 
—

GNMA
 
916,646

 
925,081

 
11,163

 
(2,728
)
 
—

Other
 
42,563

 
44,677

 
2,114

 
—

 
—

Total U.S. government agencies
 
8,303,052

 
8,372,795

 
124,556

 
(54,813
)
 
—

Private issue:
 
 

 
 

 
 

 
 

 
 

Alt-A loans
 
113,804

 
115,036

 
2,905

 
—

 
(1,673
)
Jumbo-A loans
 
178,581

 
182,139

 
4,129

 
(274
)
 
(297
)
Total private issue
 
292,385

 
297,175

 
7,034

 
(274
)
 
(1,970
)
Total residential mortgage-backed securities
 
8,595,437

 
8,669,970

 
131,590

 
(55,087
)
 
(1,970
)
Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
1,885,585

 
1,846,943

 
343

 
(38,985
)
 
—

Other debt securities
 
35,622

 
35,894

 
479

 
(207
)
 
—

Perpetual preferred stock
 
22,172

 
25,583

 
3,439

 
(28
)
 
—

Equity securities and mutual funds
 
19,990

 
23,521

 
3,736

 
(205
)
 
—

Total
 
$
10,655,841

 
$
10,698,074

 
$
141,240

 
$
(96,383
)
 
$
(2,624
)
1 
Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet
2 
Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.

The amortized cost and fair values of available for sale securities at June 30, 2014, by contractual maturity, are as shown in the following table (dollars in thousands):
 
Less than
One Year
 
One to
Five Years
 
Six to
Ten Years
 
Over
Ten Years
 
Total
 
Weighted
Average
Maturity5
U.S. Treasuries:
 
 
 
 
 
 
 
 
 
 
 
Amortized cost
$
1,023

 
$
—

 
$
—

 
$
—

 
$
1,023

 
0.63

Fair value
1,024

 
—

 
—

 
—

 
1,024

 
 
Nominal yield
0.24
%
 
—
%
 
—
%
 
—
%
 
0.24
%
 
 
Municipal and other tax-exempt:
 

 
 

 
 

 
 

 
 
 
 
Amortized cost
$
3,404

 
$
33,797

 
$
2,778

 
$
23,952

 
$
63,931

 
8.67

Fair value
3,432

 
35,004

 
3,032

 
23,502

 
64,970

 
 
Nominal yield¹
3.96
%
 
4.00
%
 
6.25
%
 
1.92
%
6 
3.32
%
 
 
Commercial mortgage-backed securities:
 
 
 
 
 
 
 
 
 
 
 
Amortized cost
$
—

 
$
626,496

 
$
1,156,265

 
$
346,760

 
$
2,129,521

 
8.84

Fair value
—

 
624,969

 
1,146,932

 
343,394

 
2,115,295

 
 
Nominal yield
—
%
 
1.30
%
 
1.63
%
 
1.27
%
 
1.47
%
 
 
Other debt securities:
 

 
 

 
 

 
 

 
 
 
 
Amortized cost
$
30,101

 
$
—

 
$
—

 
$
4,400

 
$
34,501

 
4.64

Fair value
30,297

 
—

 
—

 
4,231

 
34,528

 
 
Nominal yield
1.80
%
 
—
%
 
—
%
 
1.71
%
6 
1.79
%
 
 
Total fixed maturity securities:
 

 
 

 
 

 
 

 
 
 
 
Amortized cost
$
34,528

 
$
660,293

 
$
1,159,043

 
$
375,112

 
$
2,228,976

 
8.77

Fair value
34,753

 
659,973

 
1,149,964

 
371,127

 
2,215,817

 
 
Nominal yield
1.97
%
 
1.44
%
 
1.64
%
 
1.32
%
 
1.53
%
 
 
Residential mortgage-backed securities:
 

 
 

 
 

 
 

 
 
 
 
Amortized cost
 

 
 

 
 

 
 

 
$
7,343,012

 
2 

Fair value
 

 
 

 
 

 
 

 
7,438,546

 
 
Nominal yield4
 

 
 

 
 

 
 

 
1.87
%
 
 
Equity securities and mutual funds:
 

 
 

 
 

 
 

 
 

 
 

Amortized cost
 

 
 

 
 

 
 

 
$
41,678

 
³

Fair value
 

 
 

 
 

 
 

 
44,783

 
 

Nominal yield
 

 
 

 
 

 
 

 
1.26
%
 
 

Total available-for-sale securities:
 

 
 

 
 

 
 

 
 
 
 

Amortized cost
 

 
 

 
 

 
 

 
$
9,613,666

 
 

Fair value
 

 
 

 
 

 
 

 
9,699,146

 
 

Nominal yield
 

 
 

 
 

 
 

 
1.79
%
 
 

1 
Calculated on a taxable equivalent basis using a 39% effective tax rate.
2 
The average expected lives of mortgage-backed securities were 3.5 years based upon current prepayment assumptions.
3 
Primarily common stock and preferred stock of corporate issuers with no stated maturity.
4 
The nominal yield on mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary –– Unaudited following for current yields on available for sale securities portfolio.
5 
Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty.
6 
Nominal yield on municipal and other tax-exempt securities and other debt securities with contractual maturity dates over ten years are based on variable rates which generally are reset within 35 days.

Sales of available for sale securities resulted in gains and losses as follows (in thousands):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Proceeds
$
800,405

 
$
1,083,001

 
$
1,331,190

 
$
1,784,881

Gross realized gains
9,894

 
9,992

 
16,327

 
15,784

Gross realized losses
(9,890
)
 
(6,239
)
 
(15,083
)
 
(7,176
)
Related federal and state income tax expense
2

 
1,460

 
484

 
3,349

Securities Pledged As Collateral [Table Text Block] 
 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
Investment:
 
 
 
 
 
Carrying value
$
77,835

 
$
89,087

 
$
97,286

Fair value
81,248

 
91,804

 
100,644

 
 
 
 
 
 
Available for sale:
 
 
 
 
 
Amortized cost
5,556,130

 
5,171,782

 
5,078,098

Fair value
5,583,008

 
5,133,530

 
5,103,507

Schedule of Unrealized Loss on Investments [Table Text Block] 
Temporarily Impaired Securities as of June 30, 2014
(in thousands):
 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Investment:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt
 
42

 
$
—

 
$
—

 
$
104,959

 
$
612

 
$
104,959

 
$
612

U.S. Agency residential mortgage-backed securities – Other
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other debt securities
 
30

 
3,593

 
40

 
808

 
33

 
4,401

 
73

Total investment
 
72

 
$
3,593

 
$
40

 
$
105,767

 
$
645

 
$
109,360

 
$
685


 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Available for sale:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

Municipal and other tax-exempt
 
23

 
$
571

 
$
—

 
$
22,270

 
$
585

 
$
22,841

 
$
585

Residential mortgage-backed securities:
 
 
 
 

 
 

 
 

 
 

 


 


U. S. agencies:
 
 
 
 

 
 

 
 

 
 

 


 


FNMA
 
33

 
—

 
—

 
890,711

 
15,847

 
890,711

 
15,847

FHLMC
 
37

 
255,401

 
951

 
712,951

 
13,052

 
968,352

 
14,003

GNMA
 
7

 
77,869

 
6

 
153,596

 
3,591

 
231,465

 
3,597

Total U.S. agencies
 
77

 
333,270

 
957

 
1,757,258

 
32,490

 
2,090,528

 
33,447

Private issue1:
 
 

 
 

 
 

 
 

 
 

 


 


Alt-A loans
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Jumbo-A loans
 
11

 
19,976

 
486

 
—

 
—

 
19,976

 
486

Total private issue
 
11

 
19,976

 
486

 
—

 
—

 
19,976

 
486

Total residential mortgage-backed securities
 
88

 
353,246

 
1,443

 
1,757,258

 
32,490

 
2,110,504

 
33,933

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
96

 
114,048

 
488

 
1,242,462

 
19,277

 
1,356,510

 
19,765

Other debt securities
 
2

 
—

 
—

 
4,231

 
168

 
4,231

 
168

Perpetual preferred stocks
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Equity securities and mutual   funds
 
80

 
5,298

 
195

 
1,306

 
39

 
6,604

 
234

Total available for sale
 
289

 
$
473,163


$
2,126


$
3,027,527


$
52,559


$
3,500,690


$
54,685

1Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:
Alt-A loans
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Jumbo-A loans
 
11

 
19,976

 
486

 
—

 
—

 
19,976

 
486


Temporarily Impaired Securities as of December 31, 2013
(In thousands)
 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Investment:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt
 
107

 
$
166,382

 
$
1,921

 
$
53,073

 
$
848

 
$
219,455

 
$
2,769

U.S. Agency residential mortgage-backed securities – Other
 
2

 
15,224

 
56

 
—

 
—

 
15,224

 
56

Other debt securities
 
30

 
10,932

 
549

 
777

 
64

 
11,709

 
613

Total investment
 
139

 
$
192,538

 
$
2,526

 
$
53,850

 
$
912

 
$
246,388

 
$
3,438


 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Available for sale:
 
 

 
 

 
 

 
 

 
 

 


 


Municipal and other tax-exempt
 
27

 
$
13,286

 
$
245

 
$
17,805

 
$
818

 
$
31,091

 
$
1,063

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 


 


U. S. agencies:
 
 

 
 

 
 

 
 

 
 

 


 


FNMA
 
81

 
2,281,491

 
60,149

 
—

 
—

 
2,281,491

 
60,149

FHLMC
 
50

 
1,450,588

 
40,211

 
—

 
—

 
1,450,588

 
40,211

GNMA
 
27

 
647,058

 
8,532

 
—

 
—

 
647,058

 
8,532

Total U.S. agencies
 
158

 
4,379,137

 
108,892

 
—

 
—

 
4,379,137

 
108,892

Private issue1:
 
 

 
 

 
 

 
 

 
 

 


 


Alt-A loans
 
7

 
11,043

 
756

 
30,774

 
977

 
41,817

 
1,733

Jumbo-A loans
 
9

 
14,642

 
709

 
—

 
—

 
14,642

 
709

Total private issue
 
16

 
25,685

 
1,465

 
30,774

 
977

 
56,459

 
2,442

Total residential mortgage-backed securities
 
174

 
4,404,822

 
110,357

 
30,774

 
977

 
4,435,596

 
111,334

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
123

 
1,800,717

 
45,302

 
2,286

 
82

 
1,803,003

 
45,384

Other debt securities
 
3

 
4,712

 
188

 
—

 
—

 
4,712

 
188

Perpetual preferred stocks
 
1

 
4,988

 
13

 
—

 
—

 
4,988

 
13

Equity securities and mutual funds
 
118

 
2,070

 
67

 
—

 
—

 
2,070

 
67

Total available for sale
 
446

 
$
6,230,595

 
$
156,172

 
$
50,865

 
$
1,877

 
$
6,281,460

 
$
158,049

1 
Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:
Alt-A loans
 
7

 
$
11,043

 
$
756

 
$
30,774

 
$
977

 
$
41,817

 
$
1,733

Jumbo-A loans
 
9

 
14,642

 
709

 
—

 
—

 
14,642

 
709


Temporarily Impaired Securities as of June 30, 2013
(In thousands)
 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Investment:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt
 
149

 
$
271,897

 
$
5,816

 
$
—

 
$
—

 
$
271,897

 
$
5,816

U.S. Agency residential mortgage-backed securities – Other
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other debt securities
 
14

 
841

 
60

 
—

 
—

 
841

 
60

Total investment
 
163

 
$
272,738

 
$
5,876

 
$
—

 
$
—

 
$
272,738

 
$
5,876


 
 
Number of Securities
 
Less Than 12 Months
 
12 Months or Longer
 
Total
 
 
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
Available for sale:
 
 

 
 

 
 

 
 

 
 

 


 


U.S. Treasury
 
1

 
$
1,060

 
$
1

 
$
—

 
$
—

 
$
1,060

 
$
1

Municipal and other tax-exempt1
 
86

 
$
66,168

 
$
2,524

 
$
—

 
$
—

 
$
66,168

 
$
2,524

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 


 


U. S. agencies:
 
 

 
 

 
 

 
 

 
 

 


 


FNMA
 
72

 
2,196,603

 
39,481

 
—

 
—

 
2,196,603

 
39,481

FHLMC
 
38

 
1,202,545

 
12,604

 
—

 
—

 
1,202,545

 
12,604

GNMA
 
13

 
197,149

 
2,728

 
—

 
—

 
197,149

 
2,728

Total U.S. agencies
 
123

 
3,596,297

 
54,813

 
—

 
—

 
3,596,297

 
54,813

Private issue1:
 
 

 
 

 
 

 
 

 
 

 


 


Alt-A loans
 
10

 
51,681

 
1,236

 
3,379

 
437

 
55,060

 
1,673

Jumbo-A loans
 
2

 
17,615

 
296

 
12,298

 
275

 
29,913

 
571

Total private issue
 
12

 
69,296

 
1,532

 
15,677

 
712

 
84,973

 
2,244

Total residential mortgage-backed securities
 
135

 
3,665,593

 
56,345

 
15,677

 
712

 
3,681,270

 
57,057

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
113

 
1,730,306

 
38,985

 
—

 
—

 
1,730,306

 
38,985

Other debt securities
 
4

 
5,193

 
207

 
—

 
—

 
5,193

 
207

Perpetual preferred stocks
 
1

 
4,973

 
28

 
—

 
—

 
4,973

 
28

Equity securities and mutual funds
 
7

 
3,558

 
205

 
—

 
—

 
3,558

 
205

Total available for sale
 
347

 
$
5,476,851

 
$
98,295

 
$
15,677

 
$
712

 
$
5,492,528

 
$
99,007

1 
Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:
Municipal and other tax-exempt
 
21

 
$
11,731

 
$
654

 
$
—

 
$
—

 
$
11,731

 
$
654

Alt-A loans
 
10

 
51,681

 
1,236

 
3,379

 
437

 
55,060

 
1,673

Jumbo-A loans
 
2

 
17,615

 
296

 
—

 
—

 
17,615

 
296

Investments by Lowest Credit Rating [Table Text Block] 
At June 30, 2014, the composition of the Company’s investment and available for sale securities portfolios by the lowest current credit rating assigned by any of the three nationally-recognized rating agencies is as follows (in thousands):
 
 
 
U.S. Govt / GSE 1
 

AAA - AA
 
 
A - BBB
 
 
Below Investment Grade
 
 
Not Rated
 
 
Total
 
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
Investment:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt
 
$
—

 
$
—

 
$
271,498

 
$
272,244

 
$
16,497

 
$
16,721

 
$
—

 
$
—

 
$
137,226

 
$
140,086

 
$
425,221

 
$
429,051

Mortgage-backed securities -- other
 
41,973

 
44,176

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
41,973

 
44,176

Other debt securities
 
—

 
—

 
160,353

 
175,071

 
—

 
—

 
—

 
—

 
22,390

 
22,513

 
182,743

 
197,584

Total investment securities
 
$
41,973

 
$
44,176

 
$
431,851

 
$
447,315

 
$
16,497

 
$
16,721

 
$
—

 
$
—

 
$
159,616

 
$
162,599

 
$
649,937

 
$
670,811

 
 
U.S. Govt / GSE 1
 
AAA - AA
 
 
A - BBB
 
Below Investment Grade
 
Not Rated
 
Total
 
 
Amortized Cost
 
Fair
Value
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair
Value
Available for Sale:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

U.S. Treasury
 
$
1,023

 
$
1,024

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
1,023

 
$
1,024

Municipal and other tax-exempt
 
—

 
—

 
40,967

 
42,360

 
11,505

 
11,225

 
—

 
—

 
11,459

 
11,385

 
63,931

 
64,970

Residential mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 


 


U. S. government agencies:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 


 


FNMA
 
4,297,579

 
4,364,168

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
4,297,579

 
4,364,168

FHLMC
 
2,055,924

 
2,068,940

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
2,055,924

 
2,068,940

GNMA
 
815,201

 
820,454

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
815,201

 
820,454

Other
 
5,489

 
5,942

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
5,489

 
5,942

Total U.S. government agencies
 
7,174,193

 
7,259,504

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
7,174,193

 
7,259,504

Private issue:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 


 


Alt-A loans
 
—

 
—

 
—

 
—

 
—

 
—

 
70,880

 
75,700

 
—

 
—

 
70,880

 
75,700

Jumbo-A loans
 
—

 
—

 
—

 
—

 
—

 
—

 
97,939

 
103,342

 
—

 
—

 
97,939

 
103,342

Total private issue
 
—

 
—

 
—

 
—

 
—

 
—

 
168,819

 
179,042

 
—

 
—

 
168,819

 
179,042

Total residential mortgage-backed securities
 
7,174,193

 
7,259,504

 
—

 
—

 
—

 
—

 
168,819

 
179,042

 
—

 
—

 
7,343,012

 
7,438,546

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,129,521

 
2,115,295

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
2,129,521

 
2,115,295

Other debt securities
 
—

 
—

 
4,400

 
4,231

 
30,101

 
30,297

 
—

 
—

 
—

 
—

 
34,501

 
34,528

Perpetual preferred stock
 
—

 
—

 
—

 
—

 
11,406

 
12,588

 
10,765

 
12,142

 
—

 
—

 
22,171

 
24,730

Equity securities and mutual funds
 
—

 
—

 
4

 
505

 
—

 
—

 
—

 
—

 
19,503

 
19,548

 
19,507

 
20,053

Total available for sale securities
 
$
9,304,737

 
$
9,375,823

 
$
45,371

 
$
47,096

 
$
53,012

 
$
54,110

 
$
179,584

 
$
191,184

 
$
30,962

 
$
30,933

 
$
9,613,666

 
$
9,699,146

1 
U.S. government and government sponsored enterprises are not rated by the nationally-recognized rating agencies as these securities are guaranteed by agencies of the U.S. government or government-sponsored enterprises.
Other-than-temporary impairement, Private Lable Mortgage-Backed Securities, Assumptions Used to Develop Projected Cash Flows [Table Text Block] 
The primary assumptions used in this evaluation were:

 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
 
 
 
 
 
 
Unemployment rate
Held constant at 6.7% over the next 12 months and remains at 6.7% thereafter.
 
Increasing to 7.3% over the next 12 months and remain at 7.3% thereafter.
 
Increasing to 8% over the next 12 months and remain at 8% thereafter.
Housing price appreciation/depreciation
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 4% over the next 12 months, then flat for the following 12 months and then appreciating at 2% per year thereafter.
 
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 4% over the next 12 months, then flat for the following 12 months and then appreciating at 2% per year thereafter.
 
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 5% over the next 12 months, then flat for he following 12 months and then appreciating at 2% per year thereafter.
Estimated liquidation costs
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.
 
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.
 
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.
Discount rates
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.
 
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.
 
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.
Schedule of Privately Issued Residential Mortgage-backed Securities [Table Text Block] 
 
 
 
 
 
 
 
 
Credit Losses Recognized
 
 
 
 
 
 
 
 
Three months ended
 
 
 
 
 
 
 
 
 
 
June 30, 2014
 
Life-to-date
 
 
Number of Securities
 
Amortized Cost
 
Fair Value
 
Number of
Securities
 
Amount
 
Number of Securities
 
Amount
Alt-A
 
14

 
$
70,880

 
$
75,700

 
—

 
$
—

 
14

 
$
36,127

Jumbo-A
 
30

 
97,939

 
103,342

 
—

 
—

 
29

 
18,220

Total
 
44

 
$
168,819

 
$
179,042

 
—

 
$
—

 
43

 
$
54,347

Rollforward Other-than-temporary Impairment Credit Losses Recognized in Earnings [Table Text Block] 
The following is a tabular roll forward of the amount of credit-related OTTI recognized on available for sale debt securities in earnings (in thousands):
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Balance of credit-related OTTI recognized on available for sale debt, beginning of period
 
$
54,347

 
$
75,475

 
$
67,346

 
$
75,228

Additions for credit-related OTTI not previously recognized
 
—

 
552

 
—

 
552

Additions for increases in credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost
 
—

 
—

 
—

 
247

Reductions for change in intent to hold before recovery
 
—

 
—

 
—

 
—

Sales
 
—

 
—

 
(12,999
)
 
—

Balance of credit-related OTTI recognized on available for sale debt securities, end of period
 
$
54,347

 
$
76,027

 
$
54,347

 
$
76,027

Fair Value Option Securities [Table Text Block] 
The fair value and net unrealized gain (loss) included in fair value option securities is as follows (in thousands):
 
 
June 30, 2014
 
December 31, 2013
 
June 30, 2013
 
 
Fair Value
 
Net Unrealized Gain (Loss)
 
Fair Value
 
Net Unrealized Gain (Loss)
 
Fair
Value
 
Net Unrealized Gain (Loss)
U.S. agency residential mortgage-backed securities
 
$
181,205

 
$
(1,720
)
 
$
157,431

 
$
(8,378
)
 
$
203,816

 
$
(8,048
)
Other securities
 
4,469

 
387

 
9,694

 
209

 
1,940

 
(8
)
Total
 
$
185,674

 
$
(1,333
)
 
$
167,125

 
$
(8,169
)
 
$
205,756

 
$
(8,056
)
Schedule of Restricted Equity Securities [Table Text Block] 
 
June 30, 2014
 
December 31, 2013
 
June 30, 2013
Federal Reserve stock
$
33,971

 
$
33,742

 
$
33,695

Federal Home Loan Bank stock
57,242

 
51,498

 
124,152

Total
$
91,213

 
$
85,240

 
$
157,847

Derivatives (Tables)
Derivative Contracts [Table Text Block] 
The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at June 30, 2014 (in thousands):
 
 
Assets
 
 
Notional1
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
14,576,481

 
$
134,411

 
$
(53,746
)
 
$
80,665

 
$
—

 
$
80,665

Interest rate swaps
 
1,266,228

 
39,974

 
—

 
39,974

 
—

 
39,974

Energy contracts
 
1,063,840

 
67,831

 
(23,169
)
 
44,662

 
—

 
44,662

Agricultural contracts
 
36,050

 
2,528

 
(223
)
 
2,305

 
—

 
2,305

Foreign exchange contracts
 
242,866

 
174,802

 
—

 
174,802

 
—

 
174,802

Equity option contracts
 
205,904

 
16,962

 
—

 
16,962

 
(1,690
)
 
15,272

Total customer risk management programs
 
17,391,369

 
436,508

 
(77,138
)
 
359,370

 
(1,690
)
 
357,680

Interest rate risk management programs
 
—

 
—

 
—

 
—

 
—

 
—

Total derivative contracts
 
$
17,391,369

 
$
436,508

 
$
(77,138
)
 
$
359,370

 
$
(1,690
)
 
$
357,680

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
Notional¹
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
14,734,106

 
$
131,256

 
$
(53,746
)
 
$
77,510

 
$
—

 
$
77,510

Interest rate swaps
 
1,266,228

 
40,218

 
—

 
40,218

 
(19,700
)
 
20,518

Energy contracts
 
1,049,835

 
66,742

 
(23,169
)
 
43,573

 
(36,355
)
 
7,218

Agricultural contracts
 
36,036

 
2,538

 
(223
)
 
2,315

 
(2,298
)
 
17

Foreign exchange contracts
 
242,791

 
174,477

 
—

 
174,477

 
(680
)
 
173,797

Equity option contracts
 
205,904

 
16,962

 
—

 
16,962

 
—

 
16,962

Total customer risk management programs
 
17,534,900

 
432,193

 
(77,138
)
 
355,055

 
(59,033
)
 
296,022

Interest rate risk management programs
 
47,000

 
1,829

 
—

 
1,829

 
—

 
1,829

Total derivative contracts
 
$
17,581,900

 
$
434,022

 
$
(77,138
)
 
$
356,884

 
$
(59,033
)
 
$
297,851

1 
Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract.


The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at December 31, 2013 (in thousands):

 
 
Assets
 
 
Notional
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
10,817,159

 
$
102,921

 
$
(46,623
)
 
$
56,298

 
$
—

 
$
56,298

Interest rate swaps
 
1,283,379

 
44,124

 
—

 
44,124

 
(731
)
 
43,393

Energy contracts
 
1,263,266

 
48,078

 
(29,957
)
 
18,121

 
(2,575
)
 
15,546

Agricultural contracts
 
100,886

 
2,060

 
(1,166
)
 
894

 
—

 
894

Foreign exchange contracts
 
136,543

 
136,543

 
—

 
136,543

 
(2,147
)
 
134,396

Equity option contracts
 
210,816

 
17,957

 
—

 
17,957

 
(3,472
)
 
14,485

Total customer risk management programs
 
13,812,049

 
351,683

 
(77,746
)
 
273,937

 
(8,925
)
 
265,012

Interest rate risk management programs
 
—

 
—

 
—

 
—

 
—

 
—

Total derivative contracts
 
$
13,812,049

 
$
351,683

 
$
(77,746
)
 
$
273,937

 
$
(8,925
)
 
$
265,012

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
Notional
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
10,982,049

 
$
99,830

 
$
(46,623
)
 
$
53,207

 
$
—

 
$
53,207

Interest rate swaps
 
1,283,379

 
44,377

 
—

 
44,377

 
(17,853
)
 
26,524

Energy contracts
 
1,216,426

 
46,095

 
(29,957
)
 
16,138

 
(6,055
)
 
10,083

Agricultural contracts
 
99,191

 
2,009

 
(1,166
)
 
843

 
—

 
843

Foreign exchange contracts
 
135,237

 
135,237

 
—

 
135,237

 
(294
)
 
134,943

Equity option contracts
 
210,816

 
17,957

 
—

 
17,957

 
—

 
17,957

Total customer risk management programs
 
13,927,098

 
345,505

 
(77,746
)
 
267,759

 
(24,202
)
 
243,557

Interest rate risk management programs
 
47,000

 
3,628

 
—

 
3,628

 
—

 
3,628

Total derivative contracts
 
$
13,974,098

 
$
349,133

 
$
(77,746
)
 
$
271,387

 
$
(24,202
)
 
$
247,185

1 
Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract.




The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at June 30, 2013 (in thousands):
 
 
Assets
 
 
Notional1
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
16,351,395

 
$
545,290

 
$
(268,087
)
 
$
277,203

 
$
—

 
$
277,203

Interest rate swaps
 
1,381,836

 
51,745

 
—

 
51,745

 
—

 
51,745

Energy contracts
 
1,501,959

 
65,414

 
(35,376
)
 
30,038

 
(2,537
)
 
27,501

Agricultural contracts
 
207,439

 
5,871

 
(4,658
)
 
1,213

 
—

 
1,213

Foreign exchange contracts
 
177,643

 
177,643

 
—

 
177,643

 
—

 
177,643

Equity option contracts
 
211,595

 
13,469

 
—

 
13,469

 
(2,568
)
 
10,901

Total customer risk management programs
 
19,831,867

 
859,432

 
(308,121
)
 
551,311

 
(5,105
)
 
546,206

Interest rate risk management programs
 
—

 
—

 
—

 
—

 
—

 
—

Total derivative contracts
 
$
19,831,867

 
$
859,432

 
$
(308,121
)
 
$
551,311

 
$
(5,105
)
 
$
546,206

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
Notional1
 
Gross Fair Value
 
Netting Adjustments
 
Net Fair Value Before Cash Collateral
 
Cash Collateral
 
Fair Value Net of Cash Collateral
Customer risk management programs:
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
16,439,531

 
$
540,540

 
$
(268,087
)
 
$
272,453

 
$
—

 
$
272,453

Interest rate swaps
 
1,381,836

 
52,095

 
—

 
52,095

 
(19,381
)
 
32,714

Energy contracts
 
1,441,957

 
63,515

 
(35,376
)
 
28,139

 
(5,865
)
 
22,274

Agricultural contracts
 
207,329

 
5,824

 
(4,658
)
 
1,166

 
—

 
1,166

Foreign exchange contracts
 
177,187

 
177,187

 
—

 
177,187

 
—

 
177,187

Equity option contracts
 
211,595

 
13,469

 
—

 
13,469

 
—

 
13,469

Total customer risk management programs
 
19,859,435

 
852,630

 
(308,121
)
 
544,509

 
(25,246
)
 
519,263

Interest rate risk management programs
 
47,000

 
2,728

 
—

 
2,728

 
—

 
2,728

Total derivative contracts
 
$
19,906,435

 
$
855,358

 
$
(308,121
)
 
$
547,237

 
$
(25,246
)
 
$
521,991

1 
Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract.
Derivative Instruments, Gain (Loss) in Statement of Earnings [Table Text Block] 
The following summarizes the pre-tax net gains (losses) on derivative instruments and where they are recorded in the income statement (in thousands):
 
 
Three Months Ended
 
 
June 30, 2014
 
June 30, 2013
 
 
Brokerage
and Trading Revenue
 
Gain (Loss)
on Derivatives, Net
 
Brokerage
and Trading
Revenue
 
Gain (Loss)
on Derivatives,
Net
Customer Risk Management Programs:
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
224

 
$
—

 
$
1,716

 
$
—

Interest rate swaps
 
524

 
—

 
768

 
—

Energy contracts
 
2,613

 
—

 
2,436

 
—

Agricultural contracts
 
38

 
—

 
77

 
—

Foreign exchange contracts
 
333

 
—

 
172

 
—

Equity option contracts
 
—

 
—

 
—

 
—

Total customer risk management programs
 
3,732

 
—

 
5,169

 
—

Interest Rate Risk Management Programs
 
—

 
831

 
—

 
(2,527
)
Total Derivative Contracts
 
$
3,732

 
$
831

 
$
5,169

 
$
(2,527
)


 
 
Six Months Ended
 
 
June 30, 2014
 
June 30, 2013
 
 
Brokerage
and Trading Revenue
 
Gain (Loss)
on Derivatives, Net
 
Brokerage
and Trading
Revenue
 
Gain (Loss)
on Derivatives,
Net
Customer Risk Management Programs:
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
To-be-announced residential mortgage-backed securities
 
$
64

 
$
—

 
$
1,701

 
$
—

Interest rate swaps
 
1,031

 
—

 
1,535

 
—

Energy contracts
 
3,484

 
—

 
4,219

 
—

Agricultural contracts
 
101

 
—

 
185

 
—

Foreign exchange contracts
 
552

 
—

 
360

 
—

Equity option contracts
 
—

 
—

 
—

 
—

Total customer risk management programs
 
5,232

 
—

 
8,000

 
—

Interest Rate Risk Management Programs
 
—

 
1,799

 
—

 
(3,468
)
Total Derivative Contracts
 
$
5,232

 
$
1,799

 
$
8,000

 
$
(3,468
)
Loans and Allowances for Credit Losses (Tables)
Schedule of Loans by Portfolio Segment [Table Text Block] 
Portfolio segments of the loan portfolio are as follows (in thousands):

 
 
June 30, 2014
 
December 31, 2013
 
 
Fixed
Rate
 
Variable
Rate
 
Non-accrual
 
Total
 
Fixed
Rate
 
Variable
Rate
 
Non-accrual
 
Total
Commercial
 
$
1,681,348

 
$
6,669,210

 
$
17,103

 
$
8,367,661

 
$
1,637,620

 
$
6,288,841

 
$
16,760

 
$
7,943,221

Commercial real estate
 
744,101

 
1,876,405

 
34,472

 
2,654,978

 
770,908

 
1,603,595

 
40,850

 
2,415,353

Residential mortgage
 
1,753,186

 
210,689

 
44,340

 
2,008,215

 
1,783,615

 
226,092

 
42,319

 
2,052,026

Consumer
 
115,185

 
280,054

 
765

 
396,004

 
135,494

 
244,950

 
1,220

 
381,664

Total
 
$
4,293,820

 
$
9,036,358

 
$
96,680

 
$
13,426,858

 
$
4,327,637

 
$
8,363,478

 
$
101,149

 
$
12,792,264

Accruing loans past due (90 days)1
 
 

 
 

 
 

 
$
67

 
 

 
 

 
 

 
$
1,415

 
 
June 30, 2013
 
 
Fixed
Rate
 
Variable
Rate
 
Non-accrual
 
Total
Commercial
 
$
1,447,823

 
$
6,239,428

 
$
20,869

 
$
7,708,120

Commercial real estate
 
698,242

 
1,560,161

 
58,693

 
2,317,096

Residential mortgage
 
1,768,607

 
230,644

 
40,534

 
2,039,785

Consumer
 
142,737

 
231,007

 
2,037

 
375,781

Total
 
$
4,057,409

 
$
8,261,240

 
$
122,133

 
$
12,440,782

Accruing loans past due (90 days)1
 
 

 
 

 
 

 
$
2,460

1 
Excludes residential mortgage loans guaranteed by agencies of the U.S. government
Rollforward of Allowance For Loan Losses And Accrual for Off-Balance Sheet Credit Losses [Table Text Block] 
The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended June 30, 2014 is summarized as follows (in thousands):
 
 
Commercial
 
Commercial Real Estate
 
Residential Mortgage
 
Consumer
 
Nonspecific Allowance
 
Total
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
85,246

 
$
41,589

 
$
28,307

 
$
6,211

 
$
26,965

 
$
188,318

Provision for loan losses
 
1,393

 
(2,958
)
 
467

 
1,484

 
(16
)
 
370

Loans charged off
 
(29
)
 
—

 
(1,842
)
 
(1,651
)
 
—

 
(3,522
)
Recoveries
 
1,196

 
2,621

 
722

 
985

 
—

 
5,524

Ending balance
 
$
87,806

 
$
41,252

 
$
27,654

 
$
7,029

 
$
26,949

 
$
190,690

Allowance for off-balance sheet credit losses:
 
 

 
 

 
 

 
 

 
 

 
 

Beginning balance
 
$
576

 
$
1,040

 
$
62

 
$
—

 
$
—

 
$
1,678

Provision for off-balance sheet credit losses
 
(231
)
 
(138
)
 
(19
)
 
18

 
—

 
(370
)
Ending balance
 
$
345

 
$
902

 
$
43

 
$
18

 
$
—

 
$
1,308

 
 
 
 
 
 
 
 
 
 
 
 
 
Total provision for credit losses
 
$
1,162

 
$
(3,096
)
 
$
448

 
$
1,502

 
$
(16
)
 
$
—


The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the six months ended June 30, 2014 is summarized as follows (in thousands):
 
 
Commercial
 
Commercial Real Estate
 
Residential Mortgage
 
Consumer
 
Nonspecific Allowance
 
Total
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
79,180

 
$
41,573

 
$
29,465

 
$
6,965

 
$
28,213

 
$
185,396

Provision for loan losses
 
5,618

 
(4,549
)
 
(49
)
 
1,024

 
(1,264
)
 
780

Loans charged off
 
(173
)
 
(220
)
 
(2,838
)
 
(3,139
)
 
—

 
(6,370
)
Recoveries
 
3,181

 
4,448

 
1,076

 
2,179

 
—

 
10,884

Ending balance
 
$
87,806

 
$
41,252

 
$
27,654

 
$
7,029

 
$
26,949

 
$
190,690

Allowance for off-balance sheet credit losses:
 
 

 
 

 
 

 
 

 
 

 
 

Beginning balance
 
$
119

 
$
1,876

 
$
90

 
$
3

 
$
—

 
$
2,088

Provision for off-balance sheet credit losses
 
226

 
(974
)
 
(47
)
 
15

 
—

 
(780
)
Ending balance
 
$
345

 
$
902

 
$
43

 
$
18

 
$
—

 
$
1,308

 
 
 
 
 
 
 
 
 
 
 
 
 
Total provision for credit losses
 
$
5,844

 
$
(5,523
)
 
$
(96
)
 
$
1,039

 
$
(1,264
)
 
$
—



The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended June 30, 2013 is summarized as follows (in thousands):
 
 
Commercial
 
Commercial Real Estate
 
Residential Mortgage
 
Consumer
 
Nonspecific Allowance
 
Total
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
66,419

 
$
48,528

 
$
40,222

 
$
7,984

 
$
42,812

 
$
205,965

Provision for loan losses
 
223

 
(1,118
)
 
597

 
162

 
(363
)
 
(499
)
Loans charged off
 
(4,538
)
 
(450
)
 
(2,057
)
 
(1,507
)
 
—

 
(8,552
)
Recoveries
 
1,940

 
2,727

 
444

 
1,099

 
—

 
6,210

Ending balance
 
$
64,044

 
$
49,687

 
$
39,206

 
$
7,738

 
$
42,449

 
$
203,124

Allowance for off-balance sheet credit losses:
 
 

 
 

 
 

 
 

 
 

 
 

Beginning balance
 
$
405

 
$
618

 
$
72

 
$
10

 
$
—

 
$
1,105

Provision for off-balance sheet credit losses
 
(3
)
 
560

 
(66
)
 
8

 
—

 
499

Ending balance
 
$
402

 
$
1,178

 
$
6

 
$
18

 
$
—

 
$
1,604

 
 
 
 
 
 
 
 
 
 
 
 
 
Total provision for credit losses
 
$
220

 
$
(558
)
 
$
531

 
$
170

 
$
(363
)
 
$
—


The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the six months ended June 30, 2013 is summarized as follows (in thousands):
 
 
Commercial
 
Commercial Real Estate
 
Residential Mortgage
 
Consumer
 
Nonspecific Allowance
 
Total
Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
65,280

 
$
54,884

 
$
41,703

 
$
9,453

 
$
44,187

 
$
215,507

Provision for loan losses
 
(1,733
)
 
(3,798
)
 
323

 
(743
)
 
(1,738
)
 
(7,689
)
Loans charged off
 
(4,836
)
 
(5,250
)
 
(3,836
)
 
(3,539
)
 
—

 
(17,461
)
Recoveries
 
5,333

 
3,851

 
1,016

 
2,567

 
—

 
12,767

Ending balance
 
$
64,044

 
$
49,687

 
$
39,206

 
$
7,738

 
$
42,449

 
$
203,124

Allowance for off-balance sheet credit losses:
 
 

 
 

 
 

 
 

 
 

 
 

Beginning balance
 
$
475

 
$
1,353

 
$
78

 
$
9

 
$
—

 
$
1,915

Provision for off-balance sheet credit losses
 
(73
)
 
(175
)
 
(72
)
 
9

 
—

 
(311
)
Ending balance
 
$
402

 
$
1,178

 
$
6

 
$
18

 
$
—

 
$
1,604

 
 
 
 
 
 
 
 
 
 
 
 
 
Total provision for credit losses
 
$
(1,806
)
 
$
(3,973
)
 
$
251

 
$
(734
)
 
$
(1,738
)
 
$
(8,000
)


Schedule of Allowance for Loan Losses and Recorded Investment by Impairment Methodology [Table Text Block] 
The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at June 30, 2014 is as follows (in thousands):

 
 
Collectively Measured
for Impairment
 
Individually Measured
for Impairment
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
8,350,558

 
$
84,639

 
$
17,103

 
$
3,167

 
$
8,367,661

 
$
87,806

Commercial real estate
 
2,620,506

 
41,069

 
34,472

 
183

 
2,654,978

 
41,252

Residential mortgage
 
1,963,875

 
27,571

 
44,340

 
83

 
2,008,215

 
27,654

Consumer
 
395,239

 
7,029

 
765

 
—

 
396,004

 
7,029

Total
 
13,330,178

 
160,308

 
96,680

 
3,433

 
13,426,858

 
163,741

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
26,949

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
13,330,178

 
$
160,308

 
$
96,680

 
$
3,433

 
$
13,426,858

 
$
190,690



The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at December 31, 2013 is as follows (in thousands):

 
 
Collectively Measured
for Impairment
 
Individually Measured
for Impairment
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
7,926,461

 
$
78,607

 
$
16,760

 
$
573

 
$
7,943,221

 
$
79,180

Commercial real estate
 
2,374,503

 
41,440

 
40,850

 
133

 
2,415,353

 
41,573

Residential mortgage
 
2,010,483

 
29,217

 
41,543

 
248

 
2,052,026

 
29,465

Consumer
 
380,445

 
6,965

 
1,219

 
—

 
381,664

 
6,965

Total
 
12,691,892

 
156,229

 
100,372

 
954

 
12,792,264

 
157,183

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
28,213

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
12,691,892

 
$
156,229

 
$
100,372

 
$
954

 
$
12,792,264

 
$
185,396



The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at June 30, 2013 is as follows (in thousands):

 
 
Collectively Measured
for Impairment
 
Individually Measured
for Impairment
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
7,687,251

 
$
63,492

 
$
20,869

 
$
552

 
$
7,708,120

 
$
64,044

Commercial real estate
 
2,258,403

 
48,493

 
58,693

 
1,194

 
2,317,096

 
49,687

Residential mortgage
 
1,999,334

 
39,028

 
40,451

 
178

 
2,039,785

 
39,206

Consumer
 
373,744

 
7,618

 
2,037

 
120

 
375,781

 
7,738

Total
 
12,318,732

 
158,631

 
122,050

 
2,044

 
12,440,782

 
160,675

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
42,449

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
12,318,732

 
$
158,631

 
$
122,050

 
$
2,044

 
$
12,440,782

 
$
203,124

Schedule of Allowance for Loan Losses and Recorded Investment by Portfolio Segment for Risk Graded and Non-Risk Graded Loans [Table Text Block] 
The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at June 30, 2014 is as follows (in thousands):

 
 
Internally Risk Graded
 
Non-Graded
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
8,341,114

 
$
86,893

 
$
26,547

 
$
913

 
$
8,367,661

 
$
87,806

Commercial real estate
 
2,654,978

 
41,252

 
—

 
—

 
2,654,978

 
41,252

Residential mortgage
 
203,097

 
4,169

 
1,805,118

 
23,485

 
2,008,215

 
27,654

Consumer
 
295,762

 
2,980

 
100,242

 
4,049

 
396,004

 
7,029

Total
 
11,494,951

 
135,294

 
1,931,907

 
28,447

 
13,426,858

 
163,741

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
26,949

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
11,494,951

 
$
135,294

 
$
1,931,907

 
$
28,447

 
$
13,426,858

 
$
190,690

 
The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at December 31, 2013 is as follows (in thousands):

 
 
Internally Risk Graded
 
Non-Graded
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
7,888,219

 
$
78,250

 
$
55,002

 
$
930

 
$
7,943,221

 
$
79,180

Commercial real estate
 
2,415,353

 
41,573

 
—

 
—

 
2,415,353

 
41,573

Residential mortgage
 
220,635

 
5,481

 
1,831,391

 
23,984

 
2,052,026

 
29,465

Consumer
 
265,533

 
2,657

 
116,131

 
4,308

 
381,664

 
6,965

Total
 
10,789,740

 
127,961

 
2,002,524

 
29,222

 
12,792,264

 
157,183

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
28,213

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
10,789,740

 
$
127,961

 
$
2,002,524

 
$
29,222

 
$
12,792,264

 
$
185,396


The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at June 30, 2013 is as follows (in thousands):

 
 
Internally Risk Graded
 
Non-Graded
 
Total
 
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related Allowance
 
Recorded Investment
 
Related
Allowance
Commercial
 
$
7,689,954

 
$
62,830

 
$
18,166

 
$
1,214

 
$
7,708,120

 
$
64,044

Commercial real estate
 
2,317,096

 
49,687

 
—

 
—

 
2,317,096

 
49,687

Residential mortgage
 
230,359

 
3,753

 
1,809,426

 
35,453

 
2,039,785

 
39,206

Consumer
 
243,384

 
2,316

 
132,397

 
5,422

 
375,781

 
7,738

Total
 
10,480,793

 
118,586

 
1,959,989

 
42,089

 
12,440,782

 
160,675

 
 
 
 
 
 
 
 
 
 
 
 
 
Nonspecific allowance
 
—

 
—

 
—

 
—

 
—

 
42,449

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
10,480,793

 
$
118,586

 
$
1,959,989

 
$
42,089

 
$
12,440,782

 
$
203,124

Schedule of Credit Quality Indicators [Table Text Block] 
The following table summarizes the Company’s loan portfolio at June 30, 2014 by the risk grade categories (in thousands): 
 
 
Internally Risk Graded
 
Non-Graded
 
 
 
 
Performing
 
Potential Problem
 
Nonaccrual
 
Performing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,395,942

 
$
22,227

 
$
1,619

 
$
—

 
$
—

 
$
2,419,788

Services
 
2,352,450

 
20,946

 
3,669

 
—

 
—

 
2,377,065

Wholesale/retail
 
1,307,426

 
4,840

 
5,885

 
—

 
—

 
1,318,151

Manufacturing
 
442,493

 
6,866

 
3,507

 
—

 
—

 
452,866

Healthcare
 
1,385,395

 
7,339

 
1,422

 
—

 
—

 
1,394,156

Other commercial and industrial
 
374,556

 
3,593

 
939

 
26,485

 
62

 
405,635

Total commercial
 
8,258,262

 
65,811

 
17,041

 
26,485

 
62

 
8,367,661

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
152,228

 
17,405

 
15,146

 
—

 
—

 
184,779

Retail
 
636,332

 
1,579

 
4,199

 
—

 
—

 
642,110

Office
 
389,487

 
1,139

 
3,591

 
—

 
—

 
394,217

Multifamily
 
663,349

 
14,054

 
—

 
—

 
—

 
677,403

Industrial
 
341,449

 
—

 
631

 
—

 
—

 
342,080

Other commercial real estate
 
400,709

 
2,775

 
10,905

 
—

 
—

 
414,389

Total commercial real estate
 
2,583,554

 
36,952

 
34,472

 
—

 
—

 
2,654,978

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
197,005

 
2,187

 
3,905

 
788,784

 
29,047

 
1,020,928

Permanent mortgages guaranteed by U.S. government agencies
 
—

 
—

 
—

 
186,140

 
1,947

 
188,087

Home equity
 
—

 
—

 
—

 
789,759

 
9,441

 
799,200

Total residential mortgage
 
197,005

 
2,187

 
3,905

 
1,764,683

 
40,435

 
2,008,215

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
295,552

 
25

 
185

 
99,662

 
580

 
396,004

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
11,334,373

 
$
104,975

 
$
55,603

 
$
1,890,830

 
$
41,077

 
$
13,426,858


The following table summarizes the Company’s loan portfolio at December 31, 2013 by the risk grade categories (in thousands): 
 
 
Internally Risk Graded
 
Non-Graded
 
 
 
 
Performing
 
Potential Problem
 
Nonaccrual
 
Performing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,347,519

 
$
2,381

 
$
1,860

 
$
—

 
$
—

 
$
2,351,760

Services
 
2,265,984

 
11,304

 
4,922

 
—

 
—

 
2,282,210

Wholesale/retail
 
1,191,791

 
2,604

 
6,969

 
—

 
—

 
1,201,364

Manufacturing
 
381,794

 
9,365

 
592

 
—

 
—

 
391,751

Healthcare
 
1,272,626

 
34

 
1,586

 
—

 
—

 
1,274,246

Other commercial and industrial
 
381,394

 
4,736

 
758

 
54,929

 
73

 
441,890

Total commercial
 
7,841,108

 
30,424

 
16,687

 
54,929

 
73

 
7,943,221

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
173,488

 
15,393

 
17,377

 
—

 
—

 
206,258

Retail
 
579,506

 
1,684

 
4,857

 
—

 
—

 
586,047

Office
 
403,951

 
1,157

 
6,391

 
—

 
—

 
411,499

Multifamily
 
562,800

 
13,695

 
7

 
—

 
—

 
576,502

Industrial
 
243,625

 
—

 
252

 
—

 
—

 
243,877

Other commercial real estate
 
371,628

 
7,576

 
11,966

 
—

 
—

 
391,170

Total commercial real estate
 
2,334,998

 
39,505

 
40,850

 
—

 
—

 
2,415,353

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
210,142

 
3,283

 
7,210

 
815,040

 
27,069

 
1,062,744

Permanent mortgages guaranteed by U.S. government agencies
 
—

 
—

 
—

 
180,821

 
777

 
181,598

Home equity
 
—

 
—

 
—

 
800,420

 
7,264

 
807,684

Total residential mortgage
 
210,142

 
3,283

 
7,210

 
1,796,281

 
35,110

 
2,052,026

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
264,536

 
795

 
202

 
115,114

 
1,017

 
381,664

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
10,650,784

 
$
74,007

 
$
64,949

 
$
1,966,324

 
$
36,200

 
$
12,792,264


The following table summarizes the Company’s loan portfolio at June 30, 2013 by the risk grade categories (in thousands): 
 
 
Internally Risk Graded
 
Non-Graded
 
 
 
 
Performing
 
Potential Problem
 
Nonaccrual
 
Performing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,378,187

 
$
4,282

 
$
2,277

 
$
—

 
$
—

 
$
2,384,746

Services
 
2,170,695

 
26,110

 
7,448

 
—

 
—

 
2,204,253

Wholesale/retail
 
1,167,215

 
1,628

 
6,700

 
—

 
—

 
1,175,543

Manufacturing
 
381,729

 
3,528

 
876

 
—

 
—

 
386,133

Healthcare
 
1,116,089

 
51

 
2,670

 
—

 
—

 
1,118,810

Other commercial and industrial
 
410,237

 
9,395

 
837

 
18,105

 
61

 
438,635

Total commercial
 
7,624,152

 
44,994

 
20,808

 
18,105

 
61

 
7,708,120

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
184,216

 
20,303

 
21,135

 
—

 
—

 
225,654

Retail
 
540,872

 
4,134

 
8,406

 
—

 
—

 
553,412

Office
 
450,790

 
940

 
7,828

 
—

 
—

 
459,558

Multifamily
 
491,864

 
2,141

 
6,447

 
—

 
—

 
500,452

Industrial
 
253,732

 
258

 
—

 
—

 
—

 
253,990

Other commercial real estate
 
296,864

 
12,289

 
14,877

 
—

 
—

 
324,030

Total commercial real estate
 
2,218,338

 
40,065

 
58,693

 
—

 
—

 
2,317,096

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
219,222

 
4,789

 
6,348

 
839,113

 
26,399

 
1,095,871

Permanent mortgages guaranteed by U.S. government agencies
 
—

 
—

 
—

 
156,804

 
83

 
156,887

Home equity
 
—

 
—

 
—

 
779,323

 
7,704

 
787,027

Total residential mortgage
 
219,222

 
4,789

 
6,348

 
1,775,240

 
34,186

 
2,039,785

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
242,059

 
930

 
395

 
130,755

 
1,642

 
375,781

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
$
10,303,771

 
$
90,778

 
$
86,244

 
$
1,924,100

 
$
35,889

 
$
12,440,782

Summary of Impaired Loans [Table Text Block] 
Impaired Loans

Loans are considered to be impaired when it is probable that the Company will not be able to collect all amounts due according to the contractual terms of the loan agreement. This includes all nonaccruing loans, all loans modified in a TDR and all loans repurchased from GNMA pools.

A summary of impaired loans follows (in thousands):
 
As of
 
For the
 
For the
 
June 30, 2014
 
Three Months Ended
 
Six Months Ended
 
 
 
Recorded Investment
 
 
 
June 30, 2014
 
June 30, 2014
 
Unpaid
Principal
Balance
 
Total
 
With No
Allowance
 
With Allowance
 
Related Allowance
 
Average Recorded
Investment
 
Interest Income Recognized
 
Average Recorded
Investment
 
Interest Income Recognized
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
1,646

 
$
1,619

 
$
1,619

 
$
—

 
$
—

 
$
1,689

 
$
—

 
$
1,739

 
$
—

Services
6,530

 
3,669

 
2,917

 
752

 
158

 
4,125

 
—

 
4,295

 
—

Wholesale/retail
10,966

 
5,885

 
5,853

 
32

 
9

 
6,369

 
—

 
6,427

 
—

Manufacturing
3,764

 
3,507

 
507

 
3,000

 
3,000

 
3,536

 
—

 
2,050

 
—

Healthcare
2,438

 
1,422

 
1,422

 
—

 
—

 
1,433

 
—

 
1,504

 
—

Other commercial and industrial
8,668

 
1,001

 
1,001

 
—

 
—

 
923

 
—

 
916

 
—

Total commercial
34,012

 
17,103

 
13,319

 
3,784

 
3,167

 
18,075

 
—

 
16,931

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
19,441

 
15,146

 
14,504

 
642

 
162

 
15,846

 
—

 
16,261

 
—

Retail
5,679

 
4,199

 
4,199

 
—

 
—

 
4,413

 
—

 
4,529

 
—

Office
6,039

 
3,591

 
3,588

 
3

 
3

 
4,946

 
—

 
4,991

 
—

Multifamily
—

 
—

 
—

 
—

 
—

 
—

 
—

 
3

 
—

Industrial
790

 
631

 
631

 
—

 
—

 
758

 
—

 
441

 
—

Other real estate loans
17,617

 
10,905

 
10,725

 
180

 
18

 
10,925

 
—

 
11,436

 
—

Total commercial real estate
49,566

 
34,472

 
33,647

 
825

 
183

 
36,888

 
—

 
37,661

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
41,646

 
32,952

 
32,817

 
135

 
83

 
34,647

 
293

 
33,615

 
638

Permanent mortgage guaranteed by U.S. government agencies1
194,178

 
188,087

 
188,087

 
—

 
—

 
187,505

 
2,054

 
187,247

 
4,190

Home equity
9,482

 
9,441

 
9,441

 
—

 
—

 
8,453

 
—

 
8,353

 
—

Total residential mortgage
245,306

 
230,480

 
230,345

 
135

 
83

 
230,605

 
2,347

 
229,215

 
4,828

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
781

 
765

 
765

 
—

 
—

 
870

 
—

 
992

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
329,665

 
$
282,820

 
$
278,076

 
$
4,744

 
$
3,433

 
$
286,438

 
$
2,347

 
$
284,799

 
$
4,828

1 
All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At June 30, 2014, $1.9 million of these loans were nonaccruing and $186 million were accruing based on the guarantee by U.S. government agencies.

Generally, no interest income is recognized on impaired loans until all principal balances, including amounts charged-off, are recovered.

A summary of impaired loans at December 31, 2013 follows (in thousands): 
 
 
 
 
Recorded Investment
 
 
 
 
Unpaid
Principal
Balance
 
Total
 
With No
Allowance
 
With Allowance
 
Related Allowance
Commercial:
 
 
 
 
 
 
 
 
 
 
Energy
 
$
1,860

 
$
1,860

 
$
1,860

 
$
—

 
$
—

Services
 
6,486

 
4,922

 
3,791

 
1,131

 
516

Wholesale/retail
 
11,009

 
6,969

 
6,937

 
32

 
9

Manufacturing
 
746

 
592

 
592

 
—

 
—

Healthcare
 
2,193

 
1,586

 
1,538

 
48

 
48

Other commercial and industrial
 
8,532

 
831

 
831

 
—

 
—

Total commercial
 
30,826

 
16,760

 
15,549

 
1,211

 
573

 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
20,804

 
17,377

 
17,050

 
327

 
107

Retail
 
6,133

 
4,857

 
4,857

 
—

 
—

Office
 
7,848

 
6,391

 
6,383

 
8

 
8

Multifamily
 
7

 
7

 
7

 
—

 
—

Industrial
 
252

 
252

 
252

 
—

 
—

Other real estate loans
 
14,593

 
11,966

 
11,779

 
187

 
18

Total commercial real estate
 
49,637

 
40,850

 
40,328

 
522

 
133

 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
41,870

 
34,279

 
33,869

 
410

 
248

Permanent mortgage guaranteed by U.S. government agencies1
 
188,436

 
181,598

 
181,598

 
—

 
—

Home equity
 
7,537

 
7,264

 
7,264

 
—

 
—

Total residential mortgage
 
237,843

 
223,141

 
222,731

 
410

 
248

 
 
 
 
 
 
 
 
 
 
 
Total consumer
 
1,228

 
1,219

 
1,219

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
Total
 
$
319,534

 
$
281,970

 
$
279,827

 
$
2,143

 
$
954

1 
All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At December 31, 2013, $777 thousand of these loans were nonaccruing and $181 million were accruing based on the guarantee by U.S. government agencies.

A summary of impaired loans at June 30, 2013 follows (in thousands): 
 
As of
 
For the
 
For the
 
As of June 30, 2013
 
Three Months Ended
 
Six Months Ended
 
 
 
Recorded Investment
 
 
 
June 30, 2013
 
June 30, 2013
 
Unpaid
Principal
Balance
 
Total
 
With No
Allowance
 
With Allowance
 
Related Allowance
 
Average Recorded
Investment
 
Interest Income Recognized
 
Average Recorded
Investment
 
Interest Income Recognized
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
2,277

 
$
2,277

 
$
2,277

 
$
—

 
$
—

 
$
2,327

 
$
—

 
$
2,369

 
$
—

Services
9,631

 
7,448

 
6,283

 
1,165

 
493

 
8,461

 
—

 
9,769

 
—

Wholesale/retail
10,916

 
6,700

 
6,656

 
44

 
11

 
4,470

 
—

 
4,889

 
—

Manufacturing
1,168

 
876

 
876

 
—

 
—

 
1,362

 
—

 
1,442

 
—

Healthcare
3,357

 
2,670

 
2,622

 
48

 
48

 
2,816

 
—

 
2,918

 
—

Other commercial and industrial
8,398

 
898

 
898

 
—

 
—

 
930

 
—

 
1,283

 
—

Total commercial
35,747

 
20,869

 
19,612

 
1,257

 
552

 
20,366

 
—

 
22,670

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 

Residential construction and land development
24,752

 
21,135

 
20,841

 
294

 
102

 
22,299

 
—

 
23,633

 
—

Retail
9,827

 
8,406

 
8,406

 
—

 
—

 
8,664

 
—

 
8,262

 
—

Office
9,245

 
7,828

 
7,820

 
8

 
8

 
10,340

 
—

 
7,329

 
—

Multifamily
6,447

 
6,447

 
4,415

 
2,032

 
196

 
5,474

 
—

 
4,577

 
—

Industrial
—

 
—

 
—

 
—

 
—

 
1,099

 
—

 
1,984

 
—

Other real estate loans
17,196

 
14,877

 
13,113

 
1,764

 
888

 
14,060

 
—

 
13,876

 
—

Total commercial real estate
67,467

 
58,693

 
54,595

 
4,098

 
1,194

 
61,936

 
—

 
59,661

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 

Permanent mortgage
42,983

 
32,747

 
32,495

 
252

 
178

 
35,450

 
285

 
36,304

 
603

Permanent mortgage guaranteed by U.S. government agencies1
165,431

 
156,887

 
156,887

 
—

 
—

 
158,038

 
1,628

 
162,256

 
3,408

Home equity
7,704

 
7,704

 
7,704

 
—

 
—

 
7,382

 
—

 
6,980

 
—

Total residential mortgage
216,118

 
197,338

 
197,086

 
252

 
178

 
200,870

 
1,913

 
205,540

 
4,011

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total consumer
2,103

 
2,037

 
1,917

 
120

 
120

 
2,105

 
—

 
2,373

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
321,435

 
$
278,937

 
$
273,210

 
$
5,727

 
$
2,044

 
$
285,277

 
$
1,913

 
$
290,244

 
$
4,011

1 
All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At June 30, 2013, $83 thousand of these loans were nonaccruing and $157 million were accruing based on the guarantee by U.S. government agencies.
Troubled Debt Restructurings [Table Text Block] 
Troubled Debt Restructurings

A summary of troubled debt restructurings ("TDRs") by accruing status as of June 30, 2014 is as follows (in thousands):
 
 
As of June 30, 2014
 
Amounts Charged Off During
 
 
Recorded
Investment
 
Performing in Accordance With Modified Terms
 
Not
Performing in Accordance With Modified Terms
 
Specific
Allowance
 
Three Months Ended June 30, 2014
 
Six Months Ended
June 30, 2014
Nonaccruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
 
1,762

 
742

 
1,020

 
148

 
—

 
—

Wholesale/retail
 
3,719

 
3,598

 
121

 
9

 
—

 
—

Manufacturing
 
3,369

 
369

 
3,000

 
3,000

 
—

 
—

Healthcare
 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
 
726

 
54

 
672

 
—

 
—

 
—

Total commercial
 
9,576

 
4,763

 
4,813

 
3,157

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
9,482

 
1,622

 
7,860

 
162

 
—

 
—

Retail
 
3,727

 
2,535

 
1,192

 
—

 
—

 
—

Office
 
2,378

 
1,416

 
962

 
—

 
—

 
—

Multifamily
 
—

 
—

 
—

 
—

 
—

 
—

Industrial
 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
 
3,151

 
3,151

 
—

 
—

 
—

 
—

Total commercial real estate
 
18,738

 
8,724

 
10,014

 
162

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
17,182

 
11,605

 
5,577

 
83

 
107

 
108

Permanent mortgage guaranteed by U.S. government agencies
 
855

 
180

 
675

 
—

 
—

 
—

Home equity
 
5,076

 
3,923

 
1,153

 
—

 
52

 
65

Total residential mortgage
 
23,113

 
15,708

 
7,405

 
83

 
159

 
173

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
610

 
440

 
170

 
—

 
1

 
1

 
 
 
 
 
 
 
 
 
 
 
 
 
Total nonaccruing TDRs
 
$
52,037

 
$
29,635

 
$
22,402

 
$
3,402

 
$
160

 
$
174

 
 
 
 
 
 
 
 
 
 
 
 
 
Accruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgages guaranteed by U.S. government agencies
 
57,818

 
17,269

 
40,549

 
—

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Total TDRs
 
$
109,855

 
$
46,904

 
$
62,951

 
$
3,402

 
$
160

 
$
174

A summary of troubled debt restructurings by accruing status as of December 31, 2013 is as follows (in thousands):

 
 
As of
 
 
December 31, 2013
 
 
Recorded
Investment
 
Performing in Accordance With Modified Terms
 
Not
Performing in Accordance With Modified Terms
 
Specific
Allowance
Nonaccruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial:
 
 
 
 
 
 
 
 
Energy
 
$
—

 
$
—

 
$
—

 
$
—

Services
 
2,235

 
852

 
1,383

 
237

Wholesale/retail
 
235

 
89

 
146

 
9

Manufacturing
 
391

 
—

 
391

 
—

Healthcare
 
—

 
—

 
—

 
—

Other commercial and industrial
 
771

 
173

 
598

 
—

Total commercial
 
3,632

 
1,114

 
2,518

 
246

 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

Residential construction and land development
 
10,148

 
1,444

 
8,704

 
107

Retail
 
4,359

 
3,141

 
1,218

 
—

Office
 
5,059

 
3,872

 
1,187

 
—

Multifamily
 
—

 
—

 
—

 
—

Industrial
 
—

 
—

 
—

 
—

Other real estate loans
 
5,011

 
2,885

 
2,126

 
—

Total commercial real estate
 
24,577

 
11,342

 
13,235

 
107

 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

Permanent mortgage
 
18,697

 
12,214

 
6,483

 
88

Home equity
 
4,045

 
3,531

 
514

 
—

Total residential mortgage
 
22,742

 
15,745

 
6,997

 
88

 
 
 
 
 
 
 
 
 
Consumer
 
1,008

 
758

 
250

 
—

 
 
 
 
 
 
 
 
 
Total nonaccuring TDRs
 
$
51,959

 
$
28,959

 
$
23,000

 
$
441

 
 
 
 
 
 
 
 
 
Accruing TDRs:
 
 
 
 
 
 
 
 
Permanent mortgages guaranteed by U.S. government agencies
 
54,322

 
13,384

 
40,938

 
—

Total TDRs
 
$
106,281

 
$
42,343

 
$
63,938

 
$
441


A summary of troubled debt restructurings by accruing status as of June 30, 2013 is as follows (in thousands):
 
 
As of June 30, 2013
 
Amount Charged Off During
 
 
Recorded
Investment
 
Performing in Accordance With Modified Terms
 
Not
Performing in Accordance With Modified Terms
 
Specific
Allowance
 
Three Months Ended June 30, 2013
 
Six Months Ended
June 30, 2013
Nonaccruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
Energy
 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
 
3,065

 
710

 
2,355

 
228

 
—

 
—

Wholesale/retail
 
1,107

 
968

 
139

 
12

 
—

 
—

Manufacturing
 
—

 
—

 
—

 
—

 
—

 
—

Healthcare
 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
 
821

 
189

 
632

 
—

 
—

 
—

Total commercial
 
4,993

 
1,867

 
3,126

 
240

 
—

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
11,734

 
1,934

 
9,800

 
23

 
54

 
54

Retail
 
5,681

 
1,604

 
4,077

 
—

 
—

 
627

Office
 
5,488

 
1,313

 
4,175

 
—

 
77

 
77

Multifamily
 
990

 
208

 
782

 
—

 
—

 
—

Industrial
 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
 
8,746

 
3,739

 
5,007

 
—

 
—

 
—

Total commercial real estate
 
32,639

 
8,798

 
23,841

 
23

 
131

 
758

 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
17,639

 
10,917

 
6,722

 
54

 
8

 
348

Home equity
 
3,504

 
3,264

 
240

 
—

 
69

 
69

Total residential mortgage
 
21,143

 
14,181

 
6,962

 
54

 
77

 
417

 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
 
1,542

 
1,324

 
218

 
78

 
—

 
1

 
 
 
 
 
 
 
 
 
 
 
 
 
Total nonaccruing TDRs
 
$
60,317

 
$
26,170

 
$
34,147

 
$
395

 
$
208

 
$
1,176

 
 
 
 
 
 
 
 
 
 
 
 
 
Accruing TDRs:
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgages guaranteed by U.S. government agencies
 
48,733

 
12,598

 
36,135

 
—

 
—

 
—

Total TDRs
 
$
109,050

 
$
38,768

 
$
70,282

 
$
395

 
$
208

 
$
1,176

Troubled debt restructurings generally consist of interest rate concessions, payment stream concessions or a combination of concessions to distressed borrowers. The following tables detail the recorded balance of loans at June 30, 2014 by class that were restructured during the three and six months ended June 30, 2014 by primary type of concession (in thousands):

 
Three Months Ended
June 30, 2014
 
Accruing
 
Nonaccrual
 
Total
 
Payment Stream
 
Combination & Other
 
Total
 
Interest Rate
 
Payment Stream
 
Combination & Other
 
Total
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Wholesale/retail
—

 
—

 
—

 
—

 
3,542

 
—

 
3,542

 
3,542

Manufacturing
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Healthcare
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Total commercial
—

 
—

 
—

 
—

 
3,542

 
—

 
3,542

 
3,542

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
—

 
—

 
—

 
—

 
307

 
307

 
307

Retail
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Office
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Multifamily
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Total commercial real estate
—

 
—

 
—

 
—

 
—

 
307

 
307

 
307

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
—

 
—

 
—

 
218

 
1,821

 
2,039

 
2,039

Permanent mortgage guaranteed by U.S. government agencies
4,260

 
6,694

 
10,954

 
—

 
—

 
230

 
230

 
11,184

Home equity
—

 
—

 
—

 
—

 
—

 
1,276

 
1,276

 
1,276

Total residential mortgage
4,260

 
6,694

 
10,954

 
—

 
218

 
3,327

 
3,545

 
14,499

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
—

 
—

 
—

 
—

 
33

 
33

 
33

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
4,260

 
$
6,694

 
$
10,954

 
$
—

 
$
3,760

 
$
3,667

 
$
7,427

 
$
18,381


 
Six Months Ended
June 30, 2014
 
Accruing
 
Nonaccrual
 
Total
 
Payment Stream
 
Combination & Other
 
Total
 
Interest Rate
 
Payment Stream
 
Combination & Other
 
Total
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Wholesale/retail
—

 
—

 
—

 
—

 
3,542

 
—

 
3,542

 
3,542

Manufacturing
—

 
—

 
—

 
—

 
3,000

 
—

 
3,000

 
3,000

Healthcare
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
—

 
26

 
26

 
26

Total commercial
—

 
—

 
—

 
—

 
6,542

 
26

 
6,568

 
6,568

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
—

 
—

 
—

 
422

 
307

 
729

 
729

Retail
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Office
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Multifamily
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Total commercial real estate
—

 
—

 
—

 
—

 
422

 
307

 
729

 
729

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
—

 
—

 
—

 
348

 
2,062

 
2,410

 
2,410

Permanent mortgage guaranteed by U.S. government agencies
5,773

 
10,300

 
16,073

 
—

 
—

 
411

 
411

 
16,484

Home equity
—

 
—

 
—

 
—

 
—

 
1,564

 
1,564

 
1,564

Total residential mortgage
5,773

 
10,300

 
16,073

 
—

 
348

 
4,037

 
4,385

 
20,458

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
—

 
—

 
—

 
—

 
46

 
46

 
46

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
5,773

 
$
10,300

 
$
16,073

 
$
—

 
$
7,312

 
$
4,416

 
$
11,728

 
$
27,801



Troubled debt restructurings generally consist of interest rate concessions, payment stream concessions or a combination of concessions to distressed borrowers. The following tables detail the recorded balance of loans by class that were restructured during the three and six months ended June 30, 2013 by primary type of concession (in thousands):

 
Three Months Ended
June 30, 2013
 
Accruing
 
Nonaccrual
 
Total
 
Payment Stream
 
Combination & Other
 
Total
 
Interest Rate
 
Payment Stream
 
Combination & Other
 
Total
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
—

 
—

 
—

 
1,140

 
—

 
1,140

 
1,140

Wholesale/retail
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Manufacturing
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Healthcare
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Total commercial
—

 
—

 
—

 
—

 
1,140

 
—

 
1,140

 
1,140

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Retail
—

 
—

 
—

 
—

 
612

 
—

 
612

 
612

Office
—

 
—

 
—

 
—

 
3,181

 
—

 
3,181

 
3,181

Multifamily
—

 
—

 
—

 
—

 
990

 
—

 
990

 
990

Industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
3,931

 
—

 
3,931

 
3,931

Total commercial real estate
—

 
—

 
—

 
—

 
8,714

 
—

 
8,714

 
8,714

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
—

 
—

 
—

 
—

 
1,132

 
1,132

 
1,132

Permanent mortgage guaranteed by U.S. government agencies
3,087

 
5,809

 
8,896

 
—

 
—

 
—

 
—

 
8,896

Home equity
—

 
—

 
—

 
—

 
—

 
1,798

 
1,798

 
1,798

Total residential mortgage
3,087

 
5,809

 
8,896

 
—

 
—

 
2,930

 
2,930

 
11,826

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
—

 
—

 
—

 
—

 
777

 
777

 
777

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
3,087

 
$
5,809

 
$
8,896

 
$
—

 
$
9,854

 
$
3,707

 
$
13,561

 
$
22,457



 
Six Months Ended
June 30, 2013
 
Accruing
 
Nonaccrual
 
Total
 
Payment Stream
 
Combination & Other
 
Total
 
Interest Rate
 
Payment Stream
 
Combination & Other
 
Total
 
Commercial:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
—

 
—

 
—

 
1,173

 
—

 
1,173

 
1,173

Wholesale/retail
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Manufacturing
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Healthcare
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
147

 
—

 
—

 
147

 
147

Total commercial
—

 
—

 
—

 
147

 
1,173

 
—

 
1,320

 
1,320

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Retail
—

 
—

 
—

 
—

 
612

 
—

 
612

 
612

Office
—

 
—

 
—

 
—

 
3,181

 
—

 
3,181

 
3,181

Multifamily
—

 
—

 
—

 
—

 
990

 
—

 
990

 
990

Industrial
—

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
3,931

 
—

 
3,931

 
3,931

Total commercial real estate
—

 
—

 
—

 
—

 
8,714

 
—

 
8,714

 
8,714

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
—

 
—

 
—

 
27

 
1,377

 
1,404

 
1,404

Permanent mortgage guaranteed by U.S. government agencies
8,694

 
8,949

 
17,643

 
—

 
—

 
—

 
—

 
17,643

Home equity
—

 
—

 
—

 
—

 
—

 
2,108

 
2,108

 
2,108

Total residential mortgage
8,694

 
8,949

 
17,643

 
—

 
27

 
3,485

 
3,512

 
21,155

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
—

 
—

 
87

 
—

 
823

 
910

 
910

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
8,694

 
$
8,949

 
$
17,643

 
$
234

 
$
9,914

 
$
4,308

 
$
14,456

 
$
32,099


The following table summarizes, by loan class, the recorded investment at June 30, 2014 of loans modified as TDRs within the previous 12 months and for which there was a payment default during the three months ended June 30, 2014 (in thousands):

 
Three Months Ended
June 30, 2014
 
Six Months Ended
June 30, 2014
 
Accruing
 
Nonaccrual
 
Total
 
Accruing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
1,020

 
1,020

 
—

 
1,020

 
1,020

Wholesale/retail
—

 
—

 
—

 
—

 
—

 
—

Manufacturing
—

 
3,000

 
3,000

 
—

 
3,369

 
3,369

Healthcare
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
—

 
—

Total commercial
—

 
4,020

 
4,020

 
—

 
4,389

 
4,389

 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
422

 
422

 
—

 
422

 
422

Retail
—

 
459

 
459

 
—

 
459

 
459

Office
—

 
—

 
—

 
—

 
199

 
199

Multifamily
—

 
—

 
—

 
—

 
—

 
—

Industrial
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
—

 
—

 
—

 
—

 
—

Total commercial real estate
—

 
881

 
881

 
—

 
1,080

 
1,080

 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
2,324

 
2,324

 
—

 
2,769

 
2,769

Permanent mortgage guaranteed by U.S. government agencies
20,492

 
383

 
20,875

 
20,912

 
383

 
21,295

Home equity
—

 
1,002

 
1,002

 
—

 
1,021

 
1,021

Total residential mortgage
20,492

 
3,709

 
24,201

 
20,912

 
4,173

 
25,085

 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
14

 
14

 
—

 
14

 
14

 
 
 
 
 
 
 
 
 
 
 
 
Total
$
20,492

 
$
8,624

 
$
29,116

 
$
20,912

 
$
9,656

 
$
30,568


A payment default is defined as being 30 days or more past due. The table above includes loans that experienced a payment default during the period, but may be performing in accordance with the modified terms as of the balance sheet date.

The following table summarizes, by loan class, the recorded investment at June 30, 2013 of loans modified as TDRs within the previous 12 months and for which there was a payment default during the three months ended June 30, 2013 (in thousands):
 
Three Months Ended
June 30, 2013
 
Six Months Ended
June 30, 2013
 
Accruing
 
Nonaccrual
 
Total
 
Accruing
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
 
Energy
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Services
—

 
2,007

 
2,007

 
—

 
2,007

 
2,007

Wholesale/retail
—

 
—

 
—

 
—

 
—

 
—

Manufacturing
—

 
—

 
—

 
—

 
—

 
—

Healthcare
—

 
—

 
—

 
—

 
—

 
—

Other commercial and industrial
—

 
—

 
—

 
—

 
33

 
33

Total commercial
—

 
2,007

 
2,007

 
—

 
2,040

 
2,040

 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
Residential construction and land development
—

 
6,889

 
6,889

 
—

 
6,889

 
6,889

Retail
—

 
612

 
612

 
—

 
612

 
612

Office
—

 
3,181

 
3,181

 
—

 
3,181

 
3,181

Multifamily
—

 
782

 
782

 
—

 
990

 
990

Industrial
—

 
—

 
—

 
—

 
—

 
—

Other real estate loans
—

 
3,398

 
3,398

 
—

 
3,931

 
3,931

Total commercial real estate
—

 
14,862

 
14,862

 
—

 
15,603

 
15,603

 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 
 
 
 
 
 
 
 
 
 
Permanent mortgage
—

 
1,949

 
1,949

 
—

 
1,969

 
1,969

Permanent mortgage guaranteed by U.S. government agencies
22,784

 
—

 
22,784

 
26,767

 
—

 
26,767

Home equity
—

 
240

 
240

 
—

 
371

 
371

Total residential mortgage
22,784

 
2,189

 
24,973

 
26,767

 
2,340

 
29,107

 
 
 
 
 
 
 
 
 
 
 
 
Consumer
—

 
85

 
85

 
—

 
122

 
122

 
 
 
 
 
 
 
 
 
 
 
 
Total
$
22,784

 
$
19,143

 
$
41,927

 
$
26,767

 
$
20,105

 
$
46,872

Summary of Loans by Aging Status [Table Text Block] 
Nonaccrual & Past Due Loans

Past due status for all loan classes is based on the actual number of days since the last payment was due according to the contractual terms of the loans.

A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of June 30, 2014 is as follows (in thousands):
 
 
 
 
Past Due
 
 
 
 
 
 
Current
 
30 to 89
Days
 
90 Days
or More
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,416,139

 
$
2,005

 
$
25

 
$
1,619

 
$
2,419,788

Services
 
2,373,081

 
315

 
—

 
3,669

 
2,377,065

Wholesale/retail
 
1,312,255

 
11

 
—

 
5,885

 
1,318,151

Manufacturing
 
448,656

 
703

 
—

 
3,507

 
452,866

Healthcare
 
1,392,718

 
16

 
—

 
1,422

 
1,394,156

Other commercial and industrial
 
404,248

 
386

 
—

 
1,001

 
405,635

Total commercial
 
8,347,097

 
3,436

 
25

 
17,103

 
8,367,661

 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
169,627

 
6

 
—

 
15,146

 
184,779

Retail
 
637,609

 
302

 
—

 
4,199

 
642,110

Office
 
390,626

 
—

 
—

 
3,591

 
394,217

Multifamily
 
677,403

 
—

 
—

 
—

 
677,403

Industrial
 
341,449

 
—

 
—

 
631

 
342,080

Other real estate loans
 
403,484

 
—

 
—

 
10,905

 
414,389

Total commercial real estate
 
2,620,198

 
308

 
—

 
34,472

 
2,654,978

 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
977,897

 
10,079

 
—

 
32,952

 
1,020,928

Permanent mortgages guaranteed by U.S. government agencies
 
27,855

 
19,231

 
139,054

 
1,947

 
188,087

Home equity
 
787,863

 
1,855

 
41

 
9,441

 
799,200

Total residential mortgage
 
1,793,615

 
31,165

 
139,095

 
44,340

 
2,008,215

 
 
 
 
 
 
 
 
 
 
 
Consumer
 
394,246

 
992

 
1

 
765

 
396,004

 
 
 
 
 
 
 
 
 
 
 
Total
 
$
13,155,156

 
$
35,901

 
$
139,121

 
$
96,680

 
$
13,426,858


A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of December 31, 2013 is as follows (in thousands):

 
 
 
 
Past Due
 
 
 
 
 
 
Current
 
30 to 89
Days
 
90 Days
or More
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,347,267

 
$
2,483

 
$
150

 
$
1,860

 
$
2,351,760

Services
 
2,276,036

 
1,210

 
42

 
4,922

 
2,282,210

Wholesale/retail
 
1,193,905

 
338

 
152

 
6,969

 
1,201,364

Manufacturing
 
391,159

 
—

 
—

 
592

 
391,751

Healthcare
 
1,272,660

 
—

 
—

 
1,586

 
1,274,246

Other commercial and industrial
 
440,973

 
81

 
5

 
831

 
441,890

Total commercial
 
7,922,000

 
4,112

 
349

 
16,760

 
7,943,221

 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
188,434

 
428

 
19

 
17,377

 
206,258

Retail
 
580,926

 
264

 
—

 
4,857

 
586,047

Office
 
404,505

 
603

 
—

 
6,391

 
411,499

Multifamily
 
576,495

 
—

 
—

 
7

 
576,502

Industrial
 
243,625

 
—

 
—

 
252

 
243,877

Other real estate loans
 
376,699

 
1,493

 
1,012

 
11,966

 
391,170

Total commercial real estate
 
2,370,684

 
2,788

 
1,031

 
40,850

 
2,415,353

 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
1,018,670

 
9,795

 
—

 
34,279

 
1,062,744

Permanent mortgages guaranteed by U.S. government agencies
 
21,916

 
17,290

 
141,615

 
777

 
181,598

Home equity
 
797,299

 
3,087

 
34

 
7,264

 
807,684

Total residential mortgage
 
1,837,885

 
30,172

 
141,649

 
42,320

 
2,052,026

 
 
 
 
 
 
 
 
 
 
 
Consumer
 
379,417

 
1,027

 
1

 
1,219

 
381,664

 
 
 
 
 
 
 
 
 
 
 
Total
 
$
12,509,986

 
$
38,099

 
$
143,030

 
$
101,149

 
$
12,792,264

A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of June 30, 2013 is as follows (in thousands):

 
 
 
 
Past Due
 
 
 
 
 
 
Current
 
30 to 89
Days
 
90 Days
or More
 
Nonaccrual
 
Total
Commercial:
 
 
 
 
 
 
 
 
 
 
Energy
 
$
2,382,377

 
$
92

 
$
—

 
$
2,277

 
$
2,384,746

Services
 
2,192,771

 
1,769

 
2,265

 
7,448

 
2,204,253

Wholesale/retail
 
1,168,686

 
—

 
157

 
6,700

 
1,175,543

Manufacturing
 
385,257

 
—

 
—

 
876

 
386,133

Healthcare
 
1,115,187

 
953

 
—

 
2,670

 
1,118,810

Other commercial and industrial
 
437,558

 
160

 
19

 
898

 
438,635

Total commercial
 
7,681,836

 
2,974

 
2,441

 
20,869

 
7,708,120

 
 
 
 
 
 
 
 
 
 
 
Commercial real estate:
 
 

 
 

 
 

 
 

 
 

Residential construction and land development
 
204,519

 
—

 
—

 
21,135

 
225,654

Retail
 
542,946

 
2,060

 
—

 
8,406

 
553,412

Office
 
451,730

 
—

 
—

 
7,828

 
459,558

Multifamily
 
492,306

 
1,699

 
—

 
6,447

 
500,452

Industrial
 
253,990

 
—

 
—

 
—

 
253,990

Other real estate loans
 
308,373

 
780

 
—

 
14,877

 
324,030

Total commercial real estate
 
2,253,864

 
4,539

 
—

 
58,693

 
2,317,096

 
 
 
 
 
 
 
 
 
 
 
Residential mortgage:
 
 

 
 

 
 

 
 

 
 

Permanent mortgage
 
1,054,435

 
8,689

 
—

 
32,747

 
1,095,871

Permanent mortgages guaranteed by U.S. government agencies
 
22,328

 
17,670

 
116,806

 
83

 
156,887

Home equity
 
776,872

 
2,451

 
—

 
7,704

 
787,027

Total residential mortgage
 
1,853,635

 
28,810

 
116,806

 
40,534

 
2,039,785

 
 
 
 
 
 
 
 
 
 
 
Consumer
 
371,243

 
2,482

 
19

 
2,037

 
375,781

 
 
 
 
 
 
 
 
 
 
 
Total
 
$
12,160,578

 
$
38,805

 
$
119,266

 
$
122,133

 
$
12,440,782

Mortgage Banking Activities (Tables)
Components of Residential Mortgage Loans Held For Sale [Table Text Block] 
 
 
June 30, 2014
 
December 31, 2013
 
June 30, 2013
 
 
Unpaid Principal Balance/
Notional
 
Fair Value
 
Unpaid Principal Balance/
Notional
 
Fair Value
 
Unpaid
Principal
 Balance/
Notional
 
Fair Value
Residential mortgage loans held for sale
 
$
310,341

 
$
319,508

 
$
192,266

 
$
193,584

 
$
284,454

 
$
280,962

Residential mortgage loan commitments
 
546,864

 
13,616

 
258,873

 
2,656

 
547,508

 
(1,709
)
Forward sales contracts
 
828,739

 
(7,249
)
 
435,867

 
4,306

 
740,752

 
21,804

 
 
 

 
$
325,875

 
 

 
$
200,546

 
 

 
$
301,057

Mortgage Banking Revenue [Table Text Block] 
Mortgage banking revenue was as follows (in thousands):
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
 
2014
 
2013
 
2014
 
2013
Production revenue:
 
 
 
 
 
 
 
 
Residential mortgages loan held for sale
 
$
17,764

 
$
17,763

 
$
29,732

 
$
47,998

Residential mortgage loan commitments
 
7,614

 
(15,052
)
 
11,001

 
(14,442
)
Forward sales contracts
 
(7,651
)
 
23,645

 
(11,554
)
 
22,710

Total production revenue
 
17,727

 
26,356

 
29,179

 
56,266

Servicing revenue
 
11,603

 
10,240

 
22,995

 
20,306

Total mortgage banking revenue
 
$
29,330

 
$
36,596

 
$
52,174

 
$
76,572

Summary of Mortgage Servicing Rights [Table Text Block] 
The following represents a summary of mortgage servicing rights (Dollars in thousands):
 
 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
Number of residential mortgage loans serviced for others
 
110,404

 
106,137

 
101,498

Outstanding principal balance of residential mortgage loans serviced for others
 
$
14,626,291

 
$
13,718,942

 
$
12,741,651

Weighted average interest rate
 
4.36
%
 
4.40
%
 
4.47
%
Remaining term (in months)
 
293

 
292

 
291

Activity in Capitalized Mortgage Servicing Rights [Table Text Block] 
Activity in capitalized mortgage servicing rights during the three months ended June 30, 2014 was as follows (in thousands):
 
 
Purchased
 
Originated
 
Total
Balance, March 31, 2014
 
$
14,790

 
$
138,984

 
$
153,774

Additions, net
 
—

 
13,172

 
13,172

Change in fair value due to loan runoff
 
(599
)
 
(4,163
)
 
(4,762
)
Change in fair value due to market changes
 
(1,109
)
 
(5,335
)
 
(6,444
)
Balance, June 30, 2014
 
$
13,082

 
$
142,658

 
$
155,740


Activity in capitalized mortgage servicing rights during the six months ended June 30, 2014 was as follows (in thousands):
 
 
Purchased
 
Originated
 
Total
Balance, December 31, 2013
 
$
15,935

 
$
137,398

 
$
153,333

Additions, net
 
—

 
21,816

 
21,816

Change in fair value due to loan runoff
 
(1,114
)
 
(7,390
)
 
(8,504
)
Change in fair value due to market changes
 
(1,739
)
 
(9,166
)
 
(10,905
)
Balance, June 30, 2014
 
$
13,082

 
$
142,658

 
$
155,740


Activity in capitalized mortgage servicing rights during the three months ended June 30, 2013 was as follows (in thousands):
 
 
Purchased
 
Originated
 
Total
Balance, March 31, 2013
 
$
13,203

 
$
96,637

 
$
109,840

Additions, net
 
—

 
14,499

 
14,499

Change in fair value due to loan runoff
 
(940
)
 
(4,825
)
 
(5,765
)
Change in fair value due to market changes
 
3,319

 
10,996

 
14,315

Balance, June 30, 2013
 
$
15,582

 
$
117,307

 
$
132,889


Assumptions to Value Mortgage Servicing Rights [Table Text Block] 

There is no active market for trading in mortgage servicing rights after origination. Fair value is determined by discounting the projected net cash flows. Significant assumptions used to determine fair value based on significant unobservable inputs were as follows:

 
 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
Discount rate – risk-free rate plus a market premium
 
10.20%
 
10.21%
 
10.25%
Loan servicing costs – annually per loan based upon loan type:
 
 
 
 
 
 
    Performing loans
 
$60-$105
 
$60 - $105
 
$58 - $105
    Delinquent loans
 
$150 - $500
 
$150 - $500
 
$135 - $500
    Loans in foreclosure
 
$1,000-$4,250
 
$1,000 - $4,250
 
$875 - $4,250
Escrow earnings rate – indexed to rates paid on deposit accounts with comparable average life
 
1.69%
 
1.80%
 
1.56%
Stratification of Loan Servicing Portfolio [Table Text Block] 
Stratification of the residential mortgage loan servicing portfolio and outstanding principal of loans serviced for others by interest rate at June 30, 2014 follows (in thousands):
 
 
< 4.00%
 
4.00% - 4.99%

 
5.00% - 5.99%

 
> 5.99%
 
Total
Fair value
 
$
61,918

 
$
65,639

 
$
22,702

 
$
5,481

 
$
155,740

Outstanding principal of loans serviced for others
 
$
5,682,055

 
$
5,687,478

 
$
2,187,993

 
$
1,068,765

 
$
14,626,291

Weighted average prepayment rate1
 
7.33
%
 
8.26
%
 
12.60
%
 
28.53
%
 
10.03
%
1 
Annual prepayment estimates based upon loan interest rate, original term and loan type. Weighted average prepayment rate is determined by weighting the prepayment speed for each loan by its unpaid principal balance.

Aging Status of Mortgage Loans Serviced For Others [Table Text Block] 
The aging status of our mortgage loans serviced for others by investor at June 30, 2014 follows (in thousands):
 
 
 
 
Past Due
 
 
 
 
Current
 
30 to 59
Days
 
60 to 89
Days
 
90 Days or More
 
Total
FHLMC
 
$
4,681,165

 
$
36,913

 
$
9,828

 
$
31,543

 
$
4,759,449

FNMA
 
4,628,707

 
25,380

 
7,206

 
20,149

 
4,681,442

GNMA
 
4,538,079

 
125,530

 
35,461

 
14,487

 
4,713,557

Other
 
458,621

 
6,382

 
1,922

 
4,918

 
471,843

Total
 
$
14,306,572

 
$
194,205

 
$
54,417

 
$
71,097

 
$
14,626,291

Activity in Allowance for Losses On Loans Sold With Recourse [Table Text Block] 
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Beginning balance
$
9,066

 
$
11,420

 
$
9,562

 
$
13,158

Provision for recourse losses
183

 
416

 
167

 
(348
)
Loans charged off, net
(559
)
 
(916
)
 
(1,039
)
 
(1,890
)
Ending balance
$
8,690

 
$
10,920

 
$
8,690

 
$
10,920

Summary of Unresolved Deficiency Requests and Related Accrual for Credit Losses [Table Text Block] 
A summary of unresolved deficiency requests from the agencies follows (in thousands, except for number of unresolved deficiency requests):
 
June 30,
2014
 
June 30,
2013
Number of unresolved deficiency requests
188

 
464

Aggregate outstanding principal balance subject to unresolved deficiency requests
$
16,497

 
$
55,517

Unpaid principal balance subject to indemnification by the Company
2,248

 
1,774



The activity in the accrual for credit losses related to potential loan repurchases and indemnifications under representations and warranties is summarized as follows (in thousands).
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Beginning balance
$
7,877

 
$
5,877

 
$
8,845

 
$
5,291

Provision for repurchase losses
(2,229
)
 
453

 
(3,071
)
 
1,429

Losses on repurchases and indemnifications, net
(75
)
 
(149
)
 
(201
)
 
(539
)
Ending balance
$
5,573


$
6,181


$
5,573


$
6,181

Commitments and Contingent Liabilities Commitments and Contingent Liabilities - Variable Interest Entities (Tables)
Schedule of Variable Interest Entities [Table Text Block]
A summary of consolidated and unconsolidated alternative investments as of June 30, 2014, December 31, 2013 and June 30, 2013 is as follows (in thousands):

 
 
June 30, 2014
 
 
Loans
 
Other
assets
 
Other
liabilities
 
Other
borrowings
 
Non-controlling
interests
Consolidated:
 
 
 
 
 
 
 
 
 
 
Private equity funds
 
$
—

 
$
27,834

 
$
—

 
$
—

 
$
23,112

Tax credit entities
 
10,000

 
13,137

 
—

 
10,964

 
10,000

Other
 
—

 
7,112

 
—

 
—

 
2,017

Total consolidated
 
$
10,000

 
$
48,083

 
$
—

 
$
10,964

 
$
35,129

 
 
 
 
 
 
 
 
 
 
 
Unconsolidated:
 
 
 
 
 
 
 
 
 
 
Tax credit entities
 
$
19,855

 
$
95,251

 
$
30,782

 
$
—

 
$
—

Other
 
—

 
6,321

 
1,657

 
—

 
—

Total unconsolidated
 
$
19,855

 
$
101,572

 
$
32,439

 
$
—

 
$
—


 
 
December 31, 2013
 
 
Loans
 
Other
assets
 
Other
liabilities
 
Other
borrowings
 
Non-controlling
interests
Consolidated:
 
 
 
 
 
 
 
 
 
 
Private equity funds
 
$
—

 
$
27,341

 
$
—

 
$
—

 
$
23,036

Tax credit entities
 
10,000

 
13,448

 
—

 
10,964

 
9,869

Other
 
—

 
9,178

 
—

 
—

 
2,019

Total consolidated
 
$
10,000

 
$
49,967

 
$
—

 
$
10,964

 
$
34,924

 
 
 
 
 
 
 
 
 
 
 
Unconsolidated:
 
 
 
 
 
 
 
 
 
 
Tax credit entities
 
$
27,319

 
$
90,260

 
$
35,776

 
$
—

 
$
—

Other
 
—

 
9,257

 
1,681

 
—

 
—

Total unconsolidated
 
$
27,319

 
$
99,517

 
$
37,457

 
$
—

 
$
—


 
 
June 30, 2013
 
 
Loans
 
Other
assets
 
Other
liabilities
 
Other
borrowings
 
Non-controlling
interests
Consolidated:
 
 
 
 
 
 
 
 
 
 
Private equity funds
 
$
—

 
$
28,379

 
$
—

 
$
—

 
$
23,418

Tax credit entities
 
10,000

 
13,706

 
—

 
10,964

 
10,000

Other
 
—

 
8,483

 
—

 
—

 
1,827

Total consolidated
 
$
10,000

 
$
50,568

 
$
—

 
$
10,964

 
$
35,245

 
 
 
 
 
 
 
 
 
 
 
Unconsolidated:
 
 
 
 
 
 
 
 
 
 
Tax credit entities
 
$
26,851

 
$
86,327

 
$
37,864

 
$
—

 
$
—

Other
 
—

 
9,371

 
1,775

 
—

 
—

Total unconsolidated
 
$
26,851

 
$
95,698

 
$
39,639

 
$
—

 
$
—

Shareholders' Equity (Tables)
Accumulated Other Comprehensive Income (Loss) [Table Text Block]
A rollforward of the components of accumulated other comprehensive income (loss) is included as follows (in thousands):
 
 
Unrealized Gain (Loss) on
 
 
 
 
 
 
Available for Sale Securities
 
Investment Securities Transferred from AFS
 
Employee Benefit Plans
 
Loss on Effective Cash Flow Hedges
 
Total
Balance, December 31, 2012
 
$
155,553

 
$
3,078

 
$
(8,296
)
 
$
(415
)
 
$
149,920

Net change in unrealized gain (loss)
 
(204,545
)
 
—

 
—

 
—

 
(204,545
)
Reclassification adjustments included in earnings:
 
 
 
 
 
 
 
 
 
 
Interest revenue, Investment securities, Taxable securities
 
—

 
(2,021
)
 
—

 
—

 
(2,021
)
Interest expense, Subordinated debentures
 
—

 
—

 
—

 
124

 
124

Net impairment losses recognized in earnings
 
799

 
—

 
—

 
—

 
799

Gain on available for sale securities, net
 
(8,608
)
 
—

 
—

 
—

 
(8,608
)
Other comprehensive income (loss), before income taxes
 
(212,354
)
 
(2,021
)
 
—

 
124

 
(214,251
)
Federal and state income taxes1
 
82,605

 
788

 
—

 
(48
)
 
83,345

Other comprehensive income (loss), net of income taxes
 
(129,749
)
 
(1,233
)
 
—

 
76

 
(130,906
)
Balance, June 30, 2013
 
$
25,804

 
$
1,845

 
$
(8,296
)
 
$
(339
)
 
$
19,014

 
 
 
 
 
 
 
 
 
 
 
Balance, December 31, 2013
 
$
(23,175
)
 
$
1,118

 
$
(3,311
)
 
$
(255
)
 
$
(25,623
)
Net change in unrealized gains (losses)
 
124,653

 
—

 
(2
)
 
—

 
124,651

Reclassification adjustments included in earnings:
 
 
 
 
 
 
 
 
 
 
Interest revenue, Investment securities, Taxable securities
 
—

 
(736
)
 
—

 
—

 
(736
)
Interest expense, Subordinated debentures
 
—

 
—

 
—

 
154

 
154

Gain on available for sale securities, net
 
(1,244
)
 
—

 
—

 
—

 
(1,244
)
Other comprehensive income (loss), before income taxes
 
123,409

 
(736
)
 
(2
)
 
154

 
122,825

Federal and state income taxes1
 
(48,013
)
 
286

 
1

 
(60
)
 
(47,786
)
Other comprehensive income (loss), net of income taxes
 
75,396

 
(450
)
 
(1
)
 
94

 
75,039

Balance, June 30, 2014
 
$
52,221

 
$
668

 
$
(3,312
)
 
$
(161
)
 
$
49,416


1 
Calculated using a 39% effective tax rate.
Earnings Per Share (Tables)
Earnings Per Share [Table Text Block]
(In thousands, except share and per share amounts)
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Numerator:
 
 
 
 
 
 
 
 
Net income attributable to BOK Financial Corp. shareholders
 
$
75,895

 
$
79,931

 
$
152,485

 
$
167,895

Less: Earnings allocated to participating securities
 
884

 
854

 
1,579

 
1,825

Numerator for basic earnings per share – income available to common shareholders
 
75,011

 
79,077

 
150,906

 
166,070

Effect of reallocating undistributed earnings of participating securities
 
1

 
2

 
2

 
4

Numerator for diluted earnings per share – income available to common shareholders
 
$
75,012

 
$
79,079

 
$
150,908

 
$
166,074

 
 
 
 
 
 
 
 
 
Denominator:
 
 

 
 

 
 

 
 

Weighted average shares outstanding
 
69,162,724

 
68,719,694

 
69,031,961

 
68,645,247

Less:  Participating securities included in weighted average shares outstanding
 
802,779

 
725,872

 
713,272

 
740,648

Denominator for basic earnings per common share
 
68,359,945

 
67,993,822

 
68,318,689

 
67,904,599

Dilutive effect of employee stock compensation plans1
 
151,433

 
218,675

 
157,113

 
222,152

Denominator for diluted earnings per common share
 
68,511,378

 
68,212,497

 
68,475,802

 
68,126,751

 
 
 
 
 
 
 
 
 
Basic earnings per share
 
$
1.10

 
$
1.16

 
$
2.21

 
$
2.45

Diluted earnings per share
 
$
1.10

 
$
1.16

 
$
2.20

 
$
2.44

1  Excludes employee stock options with exercise prices greater than current market price.
 
—

 
—

 
—

 
—

Reportable Segments (Tables)
Reportable Segments [Table Text Block]
Reportable segments reconciliation to the Consolidated Financial Statements for the three months ended June 30, 2014 is as follows (in thousands):
 
 
Commercial
 
Consumer
 
Wealth
Management
 
Funds Management and Other
 
BOK
Financial
Consolidated
Net interest revenue from external sources
 
$
95,018

 
$
24,170

 
$
5,765

 
$
41,144

 
$
166,097

Net interest revenue (expense) from internal sources
 
(7,857
)
 
4,666

 
$
4,719

 
(1,528
)
 
—

Net interest revenue
 
87,161

 
28,836

 
10,484

 
39,616

 
166,097

Provision for credit losses
 
(2,812
)
 
1,345

 
19

 
1,448

 
—

Net interest revenue after provision for credit losses
 
89,973

 
27,491

 
10,465

 
38,168

 
166,097

Other operating revenue
 
44,836

 
51,256

 
65,527

 
950

 
162,569

Other operating expense
 
50,922

 
49,087

 
55,156

 
59,542

 
214,707

Net direct contribution
 
83,887

 
29,660

 
20,836

 
(20,424
)
 
113,959

Corporate expense allocations
 
18,367

 
16,911

 
12,388

 
(47,666
)
 
—

Net income before taxes
 
65,520

 
12,749

 
8,448

 
27,242

 
113,959

Federal and state income taxes
 
25,487

 
4,959

 
3,286

 
3,498

 
37,230

Net income
 
40,033

 
7,790

 
5,162

 
23,744

 
76,729

Net income attributable to non-controlling interests
 
—

 
—

 
—

 
834

 
834

Net income attributable to BOK Financial Corp. shareholders
 
$
40,033

 
$
7,790

 
$
5,162

 
$
22,910

 
$
75,895

 
 
 
 
 
 
 
 
 
 
 
Average assets
 
$
11,243,678

 
$
5,668,256

 
$
4,556,825

 
$
6,018,062

 
$
27,486,821

Average invested capital
 
937,085

 
276,294

 
214,936

 
1,748,409

 
3,176,724

 
 
 
 
 
 
 
 
 
 
 
Performance measurements:
 
 

 
 

 
 

 
 

 
 

Return on average assets
 
1.43
%
 
0.55
%
 
0.45
%
 
 
 
1.11
%
Return on average invested capital
 
17.14
%
 
11.31
%
 
9.63
%
 
 
 
9.58
%
Efficiency ratio
 
38.52
%
 
55.11
%
 
72.29
%
 
 
 
63.62
%

Reportable segments reconciliation to the Consolidated Financial Statements for the six months ended June 30, 2014 is as follows (in thousands):
 
 
Commercial
 
Consumer
 
Wealth
Management
 
Funds Management and Other
 
BOK
Financial
Consolidated
Net interest revenue from external sources
 
$
186,037

 
$
48,826

 
$
11,604

 
$
82,272

 
$
328,739

Net interest revenue (expense) from internal sources
 
(16,714
)
 
8,860

 
$
9,403

 
(1,549
)
 
—

Net interest revenue
 
169,323

 
57,686

 
21,007

 
80,723

 
328,739

Provision for credit losses
 
(6,043
)
 
2,201

 
(26
)
 
3,868

 
—

Net interest revenue after provision for credit losses
 
175,366

 
55,485

 
21,033

 
76,855

 
328,739

Other operating revenue
 
85,525

 
94,668

 
119,787

 
(405
)
 
299,575

Other operating expense
 
100,310

 
90,932

 
104,403

 
104,166

 
399,811

Net direct contribution
 
160,581

 
59,221

 
36,417

 
(27,716
)
 
228,503

Corporate expense allocations
 
35,653

 
32,750

 
23,810

 
(92,213
)
 
—

Net income before taxes
 
124,928

 
26,471

 
12,607

 
64,497

 
228,503

Federal and state income taxes
 
48,597

 
10,297

 
4,904

 
10,933

 
74,731

Net income
 
76,331

 
16,174

 
7,703

 
53,564

 
153,772

Net income attributable to non-controlling interests
 
—

 
—

 
—

 
1,287

 
1,287

Net income attributable to BOK Financial Corp. shareholders
 
$
76,331

 
$
16,174

 
$
7,703

 
$
52,277

 
$
152,485

 
 
 
 
 
 
 
 
 
 
 
Average assets
 
$
11,100,687

 
$
5,642,181

 
$
4,589,141

 
$
6,031,471

 
$
27,363,480

Average invested capital
 
934,768

 
279,897

 
208,909

 
1,717,523

 
3,141,097

 
 
 
 
 
 
 
 
 
 
 
Performance measurements:
 
 

 
 

 
 

 
 

 
 

Return on average assets
 
1.39
%
 
0.58
%
 
0.34
%
 
 
 
1.12
%
Return on average invested capital
 
16.47
%
 
11.65
%
 
7.44
%
 
 
 
9.79
%
Efficiency ratio
 
39.07
%
 
53.74
%
 
73.72
%
 
 
 
61.74
%



Reportable segments reconciliation to the Consolidated Financial Statements for the three months ended June 30, 2013 is as follows (in thousands):
 
 
Commercial
 
Consumer
 
Wealth
Management
 
Funds Management and Other
 
BOK
Financial
Consolidated
Net interest revenue from external sources
 
$
90,551

 
$
24,830

 
$
6,512

 
$
46,999

 
$
168,892

Net interest revenue (expense) from internal sources
 
(9,389
)
 
5,167

 
5,107

 
(885
)
 
—

Net interest revenue
 
81,162

 
29,997

 
11,619

 
46,114

 
168,892

Provision for credit losses
 
86

 
1,402

 
931

 
(2,419
)
 
—

Net interest revenue after provision for credit losses
 
81,076

 
28,595

 
10,688

 
48,533

 
168,892

Other operating revenue
 
43,330

 
62,309

 
55,287

 
2,414

 
163,340

Other operating expense
 
47,342

 
47,151

 
51,440

 
64,988

 
210,921

Net direct contribution
 
77,064

 
43,753

 
14,535

 
(14,041
)
 
121,311

Corporate expense allocations
 
18,080

 
14,690

 
13,019

 
(45,789
)
 
—

Net income before taxes
 
58,984

 
29,063

 
1,516

 
31,748

 
121,311

Federal and state income taxes
 
22,945

 
11,306

 
590

 
6,582

 
41,423

Net income
 
36,039

 
17,757

 
926

 
25,166

 
79,888

Net loss attributable to non-controlling interests
 
—

 
—

 
—

 
(43
)
 
(43
)
Net income attributable to BOK Financial Corp. shareholders
 
$
36,039

 
$
17,757

 
$
926

 
$
25,209

 
$
79,931

 
 
 
 
 
 
 
 
 
 
 
Average assets
 
$
10,363,144

 
$
5,695,096

 
$
4,544,061

 
$
7,057,023

 
$
27,659,324

Average invested capital
 
899,087

 
297,674

 
206,219

 
1,624,674

 
3,027,654

 
 
 
 
 
 
 
 
 
 
 
Performance measurements:
 
 

 
 

 
 

 
 

 
 

Return on average assets
 
1.39
%
 
1.25
%
 
0.08
%
 
 
 
1.16
%
Return on average invested capital
 
16.08
%
 
23.93
%
 
1.80
%
 
 
 
10.59
%
Efficiency ratio
 
37.96
%
 
49.26
%
 
76.87
%
 
 
 
63.11
%


Reportable segments reconciliation to the Consolidated Financial Statements for the six months ended June 30, 2013 is as follows (in thousands):
 
 
Commercial
 
Consumer
 
Wealth
Management
 
Funds Management and Other
 
BOK
Financial
Consolidated
Net interest revenue from external sources
 
$
181,433

 
$
48,925

 
$
12,991

 
$
96,995

 
$
340,344

Net interest revenue (expense) from internal sources
 
(18,534
)
 
10,650

 
10,403

 
(2,519
)
 
—

Net interest revenue
 
162,899

 
59,575

 
23,394

 
94,476

 
340,344

Provision for credit losses
 
1,107

 
2,332

 
1,449

 
(12,888
)
 
(8,000
)
Net interest revenue after provision for credit losses
 
161,792

 
57,243

 
21,945

 
107,364

 
348,344

Other operating revenue
 
84,781

 
122,108

 
106,778

 
10,359

 
324,026

Other operating expense
 
94,002

 
92,159

 
98,562

 
130,181

 
414,904

Net direct contribution
 
152,571

 
87,192

 
30,161

 
(12,458
)
 
257,466

Corporate expense allocations
 
36,079

 
28,859

 
25,559

 
(90,497
)
 
—

Net income before taxes
 
116,492

 
58,333

 
4,602

 
78,039

 
257,466

Federal and state income taxes
 
45,315

 
22,692

 
1,790

 
18,722

 
88,519

Net income
 
71,177

 
35,641

 
2,812

 
59,317

 
168,947

Net income attributable to non-controlling interests
 
—

 
—

 
—

 
1,052

 
1,052

Net income attributable to BOK Financial Corp. shareholders
 
$
71,177

 
$
35,641

 
$
2,812

 
$
58,265

 
$
167,895

 
 
 
 
 
 
 
 
 
 
 
Average assets
 
$
10,486,544

 
$
5,709,446

 
$
4,615,169

 
$
6,775,621

 
$
27,586,780

Average invested capital
 
895,748

 
297,375

 
204,161

 
1,615,544

 
3,012,828

 
 
 
 
 
 
 
 
 
 
 
Performance measurements:
 
 

 
 

 
 

 
 

 
 

Return on average assets
 
1.37
%
 
1.26
%
 
0.12
%
 
 
 
1.23
%
Return on average invested capital
 
16.02
%
 
24.17
%
 
2.78
%
 
 
 
11.24
%
Efficiency ratio
 
37.89
%
 
47.91
%
 
75.24
%
 
 
 
62.07
%
Fair Value Measurements (Tables)
Fair Value Assets And Liabilities Measured On A Recurring Basis [Table Text Block] 
The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of June 30, 2014 (in thousands):
 
 
Total
 
Quoted Prices in Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
19,027

 
$
—

 
$
19,027

 
$
—

U.S. agency residential mortgage-backed securities
 
13,540

 
—

 
13,540

 
—

Municipal and other tax-exempt securities
 
32,950

 
—

 
32,950

 
—

Other trading securities
 
35,580

 
—

 
35,580

 
—

Total trading securities
 
101,097

 
—

 
101,097

 
—

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,024

 
1,024

 
—

 
—

Municipal and other tax-exempt
 
64,970

 
—

 
54,525

 
10,445

U.S. agency residential mortgage-backed securities
 
7,259,504

 
—

 
7,259,504

 
—

Privately issued residential mortgage-backed securities
 
179,042

 
—

 
179,042

 
—

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,115,295

 
—

 
2,115,295

 
—

Other debt securities
 
34,528

 
—

 
30,297

 
4,231

Perpetual preferred stock
 
24,730

 
—

 
24,730

 
—

Equity securities and mutual funds
 
20,053

 
5,106

 
14,947

 
—

Total available for sale securities
 
9,699,146

 
6,130

 
9,678,340

 
14,676

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
181,205

 
—

 
181,205

 
—

     Other securities
 
4,469

 
—

 
4,469

 
—

Total fair value option securities
 
185,674

 
—

 
185,674

 
—

Residential mortgage loans held for sale
 
325,875

 
—

 
325,875

 
—

Mortgage servicing rights1
 
155,740

 
—

 
—

 
155,740

Derivative contracts, net of cash collateral2
 
357,680

 
800

 
356,880

 
—

Other assets – private equity funds
 
27,834

 
—

 
—

 
27,834

Liabilities:
 
 

 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
297,851

 
—

 
297,851

 
—

1 
A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities.
2 
See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts in asset positions that were valued based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy derivative contacts, net of cash margin. Derivative contacts in liability positions that were valued using quoted prices in active market for identical instruments are exchange-traded energy, agricultural and interest rate derivative contracts that were fully offset by cash margin.

The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of December 31, 2013 (in thousands):
 
 
Total
 
Quoted Prices in Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
34,120

 
$
—

 
$
34,120

 
$
—

U.S. agency residential mortgage-backed securities
 
21,011

 
—

 
21,011

 
—

Municipal and other tax-exempt securities
 
27,350

 
—

 
27,350

 
—

Other trading securities
 
9,135

 
—

 
9,135

 
—

Total trading securities
 
91,616

 
—

 
91,616

 
—

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,042

 
1,042

 
—

 
—

Municipal and other tax-exempt
 
73,775

 
—

 
55,970

 
17,805

U.S. agency residential mortgage-backed securities
 
7,716,010

 
—

 
7,716,010

 
—

Privately issued residential mortgage-backed securities
 
221,099

 
—

 
221,099

 
—

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,055,804

 
—

 
2,055,804

 
—

Other debt securities
 
35,241

 
—

 
30,529

 
4,712

Perpetual preferred stock
 
22,863

 
—

 
22,863

 
—

Equity securities and mutual funds
 
21,328

 
—

 
17,121

 
4,207

Total available for sale securities
 
10,147,162

 
1,042

 
10,119,396

 
26,724

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
157,431

 
—

 
157,431

 
—

     Other securities
 
9,694

 
—

 
9,694

 
—

Total fair value option securities
 
167,125

 
—

 
167,125

 
—

Residential mortgage loans held for sale
 
200,546

 
—

 
200,546

 
—

Mortgage servicing rights1
 
153,333

 
—

 
—

 
153,333

Derivative contracts, net of cash collateral2
 
265,012

 
2,712

 
262,300

 
—

Other assets – private equity funds
 
27,341

 
—

 
—

 
27,341

Liabilities:
 


 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
247,185

 
—

 
247,185

 
—

1 
A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities.
2 
See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy derivative contacts, net of cash margin.


The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of June 30, 2013 (in thousands):
 
 
Total
 
Quoted Prices in
Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
60,713

 
$
—

 
$
60,713

 
$
—

U.S. agency residential mortgage-backed securities
 
43,858

 
—

 
43,858

 
—

Municipal and other tax-exempt securities
 
53,819

 
—

 
53,819

 
—

Other trading securities
 
32,201

 
—

 
32,201

 
—

Total trading securities
 
190,591

 
—

 
190,591

 
—

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,060

 
1,060

 
—

 
—

Municipal and other tax-exempt
 
95,103

 
—

 
56,256

 
38,847

U.S. agency residential mortgage-backed securities
 
8,372,795

 
—

 
8,372,795

 
—

Privately issued residential mortgage-backed securities
 
297,175

 
—

 
297,175

 
—

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
1,846,943

 
—

 
1,846,943

 
—

Other debt securities
 
35,894

 
—

 
30,701

 
5,193

Perpetual preferred stock
 
25,583

 
—

 
25,583

 
—

Equity securities and mutual funds
 
23,521

 
5,119

 
16,155

 
2,247

Total available for sale securities
 
10,698,074

 
6,179

 
10,645,608

 
46,287

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
203,816

 
—

 
203,816

 
—

Other securities
 
1,940

 
—

 
1,940

 
—

Total fair value option securities
 
205,756

 
—

 
205,756

 
—

Residential mortgage loans held for sale
 
301,057

 
—

 
301,057

 
—

Mortgage servicing rights1
 
132,889

 
—

 
—

 
132,889

Derivative contracts, net of cash collateral2
 
546,206

 
17,588

 
528,618

 
—

Other assets – private equity funds
 
28,379

 
—

 
—

 
28,379

Liabilities:
 
 

 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
521,991

 
—

 
521,991

 
—

1 
A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities.
2 
See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy and agricultural derivative contacts, net of cash margin.

Fair Value Assets Measured On Recurring Basis, Significant Unobservable Inputs [Table Text Block] 
The following represents the changes for the three months ended June 30, 2014 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, March 31, 2014
 
$
15,523

 
$
4,712

 
$
—

 
$
27,466

Transfer to Level 3 from Level 2
 
—

 
—

 
—

 
—

Purchases and capital calls
 
—

 
—

 
—

 
220

Redemptions and distributions
 
(5,165
)
 
(500
)
 
—

 
(2,076
)
Gain (loss) recognized in earnings:
 
 
 
 
 
 
 
 
Gain on other assets, net
 
—

 
—

 
—

 
2,223

Loss on available for sale securities, net
 
(157
)
 
—

 
—

 
—

Charitable contributions to BOKF Foundation
 
—

 
—

 
—

 
—

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
244

 
19

 
—

 
—

Balance, June 30, 2014
 
$
10,445

 
$
4,231

 
$
—

 
$
27,833


The following represents the changes for the six months ended June 30, 2014 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, December 31, 2013
 
$
17,805

 
$
4,712

 
$
4,207

 
$
27,341

Transfer to Level 3 from Level 2
 
—

 
—

 
—

 
—

Purchases and capital calls
 
—

 
—

 
—

 
425

Redemptions and distributions
 
(7,487
)
 
(500
)
 
—

 
(3,181
)
Gain (loss) recognized in earnings:
 
 
 
 
 
 
 
 
Gain on other assets, net
 
—

 
—

 
—

 
3,248

Loss on available for sale securities, net
 
(235
)
 
—

 
—

 
—

Charitable contributions to BOKF Foundation
 
—

 
—

 
(2,420
)
 
—

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
362

 
19

 
(1,787
)
 
—

Balance, June 30, 2014
 
$
10,445

 
$
4,231

 
$
—

 
$
27,833


The following represents the changes for the six months ended June 30, 2013 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, March 31, 2013
 
$
39,007

 
$
5,193

 
$
2,472

 
$
29,216

Transfer to Level 3 from Level 2
 
—

 
—

 
—

 
—

Purchases, and capital calls
 
—

 
—

 
—

 
148

Redemptions and distributions
 
—

 
—

 
—

 
(1,005
)
Gain (loss) recognized in earnings
 
 
 
 
 
 
 
 
Gain on other assets, net
 
—

 
—

 
—

 
20

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
(160
)
 
—

 
(225
)
 
—

Balance, June 30, 2013
 
$
38,847

 
$
5,193

 
$
2,247

 
$
28,379


The following represents the changes for the three months ended June 30, 2013 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, December 31, 2012
 
$
40,702

 
$
5,399

 
$
2,161

 
$
28,169

Transfer to Level 3 from Level 2
 
—

 
—

 
—

 
—

Purchases, and capital calls
 
—

 
—

 
—

 
640

Redemptions and distributions
 
(98
)
 
—

 
—

 
(1,835
)
Gain (loss) recognized in earnings
 
 
 
 
 
 
 
 
Gain on other assets, net
 
—

 
—

 
—

 
1,405

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
(1,757
)
 
(206
)
 
86

 
—

Balance, June 30, 2013
 
$
38,847

 
$
5,193

 
$
2,247

 
$
28,379

Fair Value Inputs, Fair Value Measured On a Recurring Basis, Quantitative Information [Table Text Block] 
A summary of quantitative information about assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as of June 30, 2014 follows (in thousands):
Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Par
Value
 
Amortized
Cost
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
$
10,970

 
$
10,903

 
$
10,445

 
Discounted cash flows
1 
Interest rate spread
 
4.91%-5.21% (5.17%)
2 
95.11%-96.13% (95.38%)
3 
Other debt securities
 
4,400

 
4,400

 
4,231

 
Discounted cash flows
1 
Interest rate spread
 
4.38%-5.65% (5.51%)
4 
95.11% - 95.28 (95.17%)
3 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
27,834

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 480 to 508 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.

The fair value of these securities measured at fair value using significant unobservable inputs are sensitive primarily to changes in interest rate spreads. At June 30, 2014, for tax-exempt securities rated investment grade by all nationally-recognized rating agencies, a 100 basis point increase in the spreads over average yields for comparable securities would result in an additional decrease in the fair value of $101 thousand. For taxable securities rated investment grade by all nationally-recognized rating agencies, a 100 basis point increase in the spreads over average yield for comparable securities would result in an additional decrease in the fair value of $41 thousand.

A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of December 31, 2013 follows (in thousands):
Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
Par
Value
 
Amortized
Cost
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
$
18,695

 
$
18,624

 
$
17,805

 
Discounted cash flows
1 
Interest rate spread
 
4.97%-5.27% (5.16%)
2 
95.02%-95.50% (95.24%)
3 
Other debt securities
 
4,900

 
4,900

 
4,712

 
Discounted cash flows
1 
Interest rate spread
 
5.67% (5.67%)
4 
96.16% (96.16%)
3 
Equity securities and mutual funds
 
N/A
 
2,420

 
4,207

 
Publicly announced preliminary purchase price information from acquirer.
 
Discount for settlement uncertainty.
 
N/A
5 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
27,341

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 467 to 518 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.
5 
Fair value of shares of a smaller privately-held financial institution were valued using preliminary announced purchase information by a publicly-traded acquirer.

A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2013 follows (in thousands):

Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
Par
Value
 
Amortized
Cost6
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Investment grade
 
$
28,470

 
$
28,375

 
$
27,116

 
Discounted cash flows
1 
Interest rate spread
 
4.99%-5.49% (5.24%)
2 
95.01%-95.60% (95.25%)
3 
Below investment grade
 
17,000

 
12,384

 
11,731

 
Discounted cash flows
1 
Interest rate spread
 
9.15%-11.19% (9.87%)
4 
68.91%-69.09% (69.01%)
3 
Total municipal and other tax-exempt securities
 
45,470

 
40,759

 
38,847

 
 
 
 
 
 
 
Other debt securities
 
5,400

 
5,400

 
5,193

 
Discounted cash flows
1 
Interest rate spread
 
4.41%-5.69% (5.48%)
5 
96.13% - 96.16 (96.16%)
3 
Equity securities and mutual funds
 
N/A
 
2,420

 
2,247

 
Tangible book value per share of publicly traded financial institutions of similar size, less liquidity discount.
 
Peer group tangible book per share and liquidity discount.
 
N/A
7 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
28,379

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 457 to 520 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields determined using a spread of 700 basis points over comparable municipal securities of varying durations.
5 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.
6 
Amortized cost reduced by other-than-temporary impairments recorded in earnings. See Note 2 for additional discussion.
7 
Fair value of shares of a smaller privately-held financial institution were valued using the tangible book value per share of similarly sized financial institutions within the immediate geographical market with a discount of 20% due to the liquidity of the shares.
Fair Value Assets Measured on Nonrecurring Basis [Table Text Block] 
The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2014 for which the fair value was adjusted during the six months ended June 30, 2014:
 
 
 
 
 
 
 
Fair Value Adjustments for the
 
 
 
 
 
Carrying Value at June 30, 2014
 
Three Months Ended
June 30, 2014
Recognized in:
 
Six Months Ended
June 30, 2014
Recognized in:
 
Quoted Prices
in Active Markets for Identical Instruments
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
Impaired loans
$
—

 
$
5,182

 
$
65

 
$
949

 
$
—

 
$
1,627

 
$
—

Real estate and other repossessed assets
—

 
8,303

 
27

 
—

 
(21
)
 
—

 
1,308

 
The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2013 for which the fair value was adjusted during the six months ended June 30, 2013:
 
 
 
 
 
 
 
Fair Value Adjustments for the
 
 
 
 
 
Carrying Value at June 30, 2013
 
Three Months Ended
June 30, 2013
Recognized in:
 
Six Months Ended
June 30, 2013
Recognized in:
 
Quoted Prices
in Active Markets for Identical Instruments
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
Impaired loans
$
—

 
$
10,245

 
$
4,930

 
$
5,060

 
$
—

 
$
6,601

 
$
—

Real estate and other repossessed assets
—

 
7,949

 
271

 
—

 
863

 
—

 
1,014

Fair Value Inputs, Fair Value Measured On a Nonrecurring Basis, Quantitative Information [Table Text Block] 
A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2014 follows (in thousands):
Quantitative Information about Level 3 Non-recurring Fair Value Measurements
 
 
Fair Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
Impaired loans
 
$
65

 
Appraised value, as adjusted
 
Broker quotes and management's knowledge of industry and collateral.
 
N/A
Real estate and other repossessed assets
 
$
27

 
Listing value, less cost to sell
 
Marketability adjustment off appraised value
 
77%1

1 
Marketability adjustments include consideration of estimated costs to sell, which is approximately 10% of fair value.


A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2013 follows (in thousands):
Quantitative Information about Level 3 Non-recurring Fair Value Measurements
 
 
Fair Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
Impaired loans
 
$
4,930

 
Appraised value, as adjusted
 
Broker quotes and management's knowledge of industry and collateral.
 
N/A
Real estate and other repossessed assets
 
271

 
Listing value, less cost to sell
 
Marketability adjustments off appraised value
 
71%-81% (76%)1
1 
Marketability adjustments include consideration of estimated costs to sell, which is approximately 15% of fair value.
Fair Value of Financial Instruments [Table Text Block] 
The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of June 30, 2014 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
615,479

 
 
 
 
 
 
 
$
615,479

Interest-bearing cash and cash equivalents
 
732,395

 
 
 
 
 
 
 
732,395

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
19,027

 
 
 
 
 
 
 
19,027

U.S. agency residential mortgage-backed securities
 
13,540

 
 
 
 
 
 
 
13,540

Municipal and other tax-exempt securities
 
32,950

 
 
 
 
 
 
 
32,950

Other trading securities
 
35,580

 
 
 
 
 
 
 
35,580

Total trading securities
 
101,097

 
 
 
 
 
 
 
101,097

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
425,221

 
 
 
 
 
 
 
429,051

U.S. agency residential mortgage-backed securities
 
41,973

 
 
 
 
 
 
 
44,176

Other debt securities
 
182,743

 
 
 
 
 
 
 
197,584

Total investment securities
 
649,937

 
 
 
 
 
 
 
670,811

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,024

 
 
 
 
 
 
 
1,024

Municipal and other tax-exempt
 
64,970

 
 
 
 
 
 
 
64,970

U.S. agency residential mortgage-backed securities
 
7,259,504

 
 
 
 
 
 
 
7,259,504

Privately issued residential mortgage-backed securities
 
179,042

 
 
 
 
 
 
 
179,042

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,115,295

 
 
 
 
 
 
 
2,115,295

Other debt securities
 
34,528

 
 
 
 
 
 
 
34,528

Perpetual preferred stock
 
24,730

 
 
 
 
 
 
 
24,730

Equity securities and mutual funds
 
20,053

 
 
 
 
 
 
 
20,053

Total available for sale securities
 
9,699,146

 
 
 
 
 
 
 
9,699,146

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
181,205

 
 
 
 
 
 
 
181,205

      Other securities
 
4,469

 
 
 
 
 
 
 
4,469

Total fair value option securities
 
185,674

 
 
 
 
 
 
 
185,674

Residential mortgage loans held for sale
 
325,875

 
 
 
 
 
 
 
325,875

Loans:
 
 

 
 
 
 
 
 
 
 

Commercial
 
8,367,661

 
0.16% - 30.00%
 
0.67

 
0.55% - 4.28%

 
8,244,031

Commercial real estate
 
2,654,978

 
0.38% - 18.00%
 
0.83

 
1.14% - 3.59%

 
2,635,903

Residential mortgage
 
2,008,215

 
1.20% - 18.00%
 
2.49

 
0.55% - 4.18%

 
2,043,551

Consumer
 
396,004

 
0.38% - 21.00%
 
0.49

 
1.07% - 3.79%

 
39,038

Total loans
 
13,426,858

 
 
 
 

 
 

 
12,962,523

Allowance for loan losses
 
(190,690
)
 
 
 
 

 
 

 
—

Loans, net of allowance
 
13,236,168

 
 
 
 

 
 

 
12,962,523

Mortgage servicing rights
 
155,740

 
 
 
 

 
 

 
155,740

Derivative instruments with positive fair value, net of cash margin
 
357,680

 
 
 
 

 
 

 
357,680

Other assets – private equity funds
 
27,834

 
 
 
 

 
 

 
27,834

Deposits with no stated maturity
 
17,956,038

 
 
 
 

 
 

 
17,956,038

Time deposits
 
2,615,826

 
0.03% - 9.64%
 
2.07

 
0.74% - 1.29%

 
2,623,086

Other borrowed funds
 
3,009,610

 
0.25% - 6.80%
 
—

 
0.09% - 2.62%

 
2,984,331

Subordinated debentures
 
347,890

 
0.91% - 5.00%
 
2.16

 
2.20
%
 
344,717

Derivative instruments with negative fair value, net of cash margin
 
297,851

 
 
 
 

 
 

 
297,851


The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of December 31, 2013 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
512,931

 
 
 
 
 
 
 
$
512,931

Interest-bearing cash and cash equivalents
 
574,282

 
 
 
 
 
 
 
574,282

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
34,120

 
 
 
 
 
 
 
34,120

U.S. agency residential mortgage-backed securities
 
21,011

 
 
 
 
 
 
 
21,011

Municipal and other tax-exempt securities
 
27,350

 
 
 
 
 
 
 
27,350

Other trading securities
 
9,135

 
 
 
 
 
 
 
9,135

Total trading securities
 
91,616

 
 
 
 
 
 
 
91,616

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
440,187

 
 
 
 
 
 
 
439,870

U.S. agency residential mortgage-backed securities
 
50,182

 
 
 
 
 
 
 
51,864

Other debt securities
 
187,509

 
 
 
 
 
 
 
195,393

Total investment securities
 
677,878

 
 
 
 
 
 
 
687,127

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,042

 
 
 
 
 
 
 
1,042

Municipal and other tax-exempt
 
73,775

 
 
 
 
 
 
 
73,775

U.S. agency residential mortgage-backed securities
 
7,716,010

 
 
 
 
 
 
 
7,716,010

Privately issued residential mortgage-backed securities
 
221,099

 
 
 
 
 
 
 
221,099

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,055,804

 
 
 
 
 
 
 
2,055,804

Other debt securities
 
35,241

 
 
 
 
 
 
 
35,241

Perpetual preferred stock
 
22,863

 
 
 
 
 
 
 
22,863

Equity securities and mutual funds
 
21,328

 
 
 
 
 
 
 
21,328

Total available for sale securities
 
10,147,162

 
 
 
 
 
 
 
10,147,162

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
157,431

 
 
 
 
 
 
 
157,431

      Other securities
 
9,694

 
 
 
 
 
 
 
9,694

Total fair value option securities
 
167,125

 
 
 
 
 
 
 
167,125

Residential mortgage loans held for sale
 
200,546

 
 
 
 
 
 
 
200,546

Loans:
 
 

 
 
 
 

 
 

 
 

Commercial
 
7,943,221

 
0.04% - 30.00%
 
0.49

 
0.48% - 4.33%

 
7,835,325

Commercial real estate
 
2,415,353

 
0.38% - 18.00%
 
0.78

 
1.21% - 3.49%

 
2,394,443

Residential mortgage
 
2,052,026

 
0.38% - 18.00%
 
2.63

 
0.59% - 4.73%

 
2,068,690

Consumer
 
381,664

 
0.38% - 21.00%
 
0.55

 
1.22% - 3.75%

 
375,962

Total loans
 
12,792,264

 
 
 
 

 
 

 
12,674,420

Allowance for loan losses
 
(185,396
)
 
 
 
 

 
 

 
—

Loans, net of allowance
 
12,606,868

 
 
 
 

 
 

 
12,674,420

Mortgage servicing rights
 
153,333

 
 
 
 

 
 

 
153,333

Derivative instruments with positive fair value, net of cash margin
 
265,012

 
 
 
 

 
 

 
265,012

Other assets – private equity funds
 
27,341

 
 
 
 

 
 

 
27,341

Deposits with no stated maturity
 
17,573,334

 
 
 
 

 
 

 
17,573,334

Time deposits
 
2,695,993

 
0.01% - 9.64%
 
2.12

 
0.75% - 1.33%

 
2,697,290

Other borrowed funds
 
2,721,888

 
0.25% - 4.78%
 
0.03

 
0.08% - 2.64%

 
2,693,788

Subordinated debentures
 
347,802

 
0.95% - 5.00%
 
2.63

 
2.22
%
 
344,783

Derivative instruments with negative fair value, net of cash margin
 
247,185

 
 
 
 

 
 

 
247,185


The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of June 30, 2013 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
507,551

 
 
 
 
 
 
 
$
507,551

Interest-bearing cash and cash equivalents
 
570,836

 
 
 
 
 
 
 
570,836

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
60,713

 
 
 
 
 
 
 
60,713

U.S. agency residential mortgage-backed securities
 
43,858

 
 
 
 
 
 
 
43,858

Municipal and other tax-exempt securities
 
53,819

 
 
 
 
 
 
 
53,819

Other trading securities
 
32,201

 
 
 
 
 
 
 
32,201

Total trading securities
 
190,591

 
 
 
 
 
 
 
190,591

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
375,317

 
 
 
 
 
 
 
371,690

U.S. agency residential mortgage-backed securities
 
64,172

 
 
 
 
 
 
 
66,796

Other debt securities
 
176,301

 
 
 
 
 
 
 
187,219

Total investment securities
 
615,790

 
 
 
 
 
 
 
625,705

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,060

 
 
 
 
 
 
 
1,060

Municipal and other tax-exempt
 
95,103

 
 
 
 
 
 
 
95,103

U.S. agency residential mortgage-backed securities
 
8,372,795

 
 
 
 
 
 
 
8,372,795

Privately issued residential mortgage-backed securities
 
297,175

 
 
 
 
 
 
 
297,175

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
1,846,943

 
 
 
 
 
 
 
1,846,943

Other debt securities
 
35,894

 
 
 
 
 
 
 
35,894

Perpetual preferred stock
 
25,583

 
 
 
 
 
 
 
25,583

Equity securities and mutual funds
 
23,521

 
 
 
 
 
 
 
23,521

Total available for sale securities
 
10,698,074

 
 
 
 
 
 
 
10,698,074

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
203,816

 
 
 
 
 
 
 
203,816

Other securities
 
1,940

 
 
 
 
 
 
 
1,940

Total fair value option securities
 
205,756

 
 
 
 
 
 
 
205,756

Residential mortgage loans held for sale
 
301,057

 
 
 
 
 
 
 
301,057

Loans:
 
 

 
 
 
 
 
 
 
 

Commercial
 
7,708,120

 
0.25% - 30.00%
 
0.63

 
0.59% - 4.19%

 
7,638,327

Commercial real estate
 
2,317,096

 
0.38% - 18.00%
 
0.83

 
1.23% - 3.47%

 
2,288,188

Residential mortgage
 
2,039,785

 
0.38% - 18.00%
 
3.64

 
0.70% - 4.46%

 
2,038,375

Consumer
 
375,781

 
0.38% - 21.00%
 
0.35

 
1.26% - 3.74%

 
369,375

Total loans
 
12,440,782

 
 
 
 

 
 

 
12,334,265

Allowance for loan losses
 
(203,124
)
 
 
 
 

 
 

 
—

Loans, net of allowance
 
12,237,658

 
 
 
 

 
 

 
12,334,265

Mortgage servicing rights
 
132,889

 
 
 
 

 
 

 
132,889

Derivative instruments with positive fair value, net of cash margin
 
546,206

 
 
 
 

 
 

 
546,206

Other assets – private equity funds
 
28,379

 
 
 
 

 
 

 
28,379

Deposits with no stated maturity
 
16,728,258

 
 
 
 

 
 

 
16,728,258

Time deposits
 
2,767,972

 
0.03% - 9.64%
 
2.02

 
0.76% - 1.30%

 
2,781,202

Other borrowed funds
 
4,073,915

 
0.25% - 5.25%
 
—

 
0.07% - 2.66%

 
4,034,685

Subordinated debentures
 
347,716

 
0.97% - 5.00%
 
3.10

 
2.24
%
 
345,201

Derivative instruments with negative fair value, net of cash margin
 
521,991

 
 
 
 

 
 

 
521,991


Federal and State Income Taxes (Tables)
Reconciliation of income (loss) to income tax expense
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Amount:
 
 
 
 
 
 
 
 
Federal statutory tax
 
$
39,886

 
$
42,459

 
$
79,976

 
$
90,113

Tax exempt revenue
 
(2,099
)
 
(1,803
)
 
(4,090
)
 
(3,545
)
Effect of state income taxes, net of federal benefit
 
2,457

 
3,122

 
5,327

 
6,500

Utilization of tax credits
 
(2,836
)
 
(1,826
)
 
(5,466
)
 
(3,548
)
Bank-owned life insurance
 
(784
)
 
(993
)
 
(1,552
)
 
(1,878
)
Charitable contributions to BOKF Foundation
 
—

 
—

 
(427
)
 
—

Other, net
 
606

 
464

 
963

 
877

Total
 
$
37,230

 
$
41,423

 
$
74,731

 
$
88,519


 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2014
 
2013
 
2014
 
2013
Percent of pretax income:
 
 
 
 
 
 
 
 
Federal statutory tax
 
35
 %
 
35
 %
 
35
 %
 
35
 %
Tax exempt revenue
 
(2
)
 
(1
)
 
(2
)
 
(1
)
Effect of state income taxes, net of federal benefit
 
3

 
3

 
3

 
2

Utilization of tax credits
 
(2
)
 
(2
)
 
(2
)
 
(1
)
Bank-owned life insurance
 
(1
)
 
(1
)
 
(1
)
 
(1
)
Charitable contributions to BOKF Foundation
 
—

 
—

 
—

 
—

Other, net
 
—

 
—

 
—

 
—

Total
 
33
 %
 
34
 %
 
33
 %
 
34
 %
Significant Accounting Policies Loans and Allowance for Credit Losses (Details)
6 Months Ended
Jun. 30, 2014
Loans and Allowance for Credit Losses [Abstract]
 
Loans, Number of Days Past Due for a Non-Risk Graded Loan to be Placed on Nonaccruing Status
90 days 
Loans, Number of Days After Notification of Chapter 7 Bankruptcy Non-Risk Graded Loan is Placed on Nonaccruing Status
60 days 
Loans and Allowances for Credit Losses, Minimum No of Days After Which Past Due Non-Risk Graded Loans Are Charged Off
60 days 
Loans and Allowances for Credit Losses, Maximum No of Days After Which Past Due Non-Risk Graded Loans Are Charged Off
180 days 
Loans, Number of Days After Notification of Chapter 7 Bankruptcy Non-Risk Graded Loan is Charged Off
60 days 
Trading Securities (Details) (USD $)
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Schedule of Trading Securities [Line Items]
 
 
 
Trading Securities, Fair Value
$ 101,097,000 
$ 91,616,000 
$ 190,591,000 
Trading Securities, Net Unrealized Gain (Loss)
57,000 
11,000 
(2,502,000)
Trading Securities, Pledged as Collateral
0 
0 
0 
U.S. Government agency debentures [Member]
 
 
 
Schedule of Trading Securities [Line Items]
 
 
 
Trading Securities, Fair Value
19,027,000 
34,120,000 
60,713,000 
Trading Securities, Net Unrealized Gain (Loss)
6,000 
77,000 
(552,000)
U.S. agency residential mortgage-backed securities [Member]
 
 
 
Schedule of Trading Securities [Line Items]
 
 
 
Trading Securities, Fair Value
13,540,000 
21,011,000 
43,858,000 
Trading Securities, Net Unrealized Gain (Loss)
3,000 
123,000 
38,000 
Municipal and other tax-exempt securities [Member]
 
 
 
Schedule of Trading Securities [Line Items]
 
 
 
Trading Securities, Fair Value
32,950,000 
27,350,000 
53,819,000 
Trading Securities, Net Unrealized Gain (Loss)
28,000 
(182,000)
(1,271,000)
Other trading securities [Member]
 
 
 
Schedule of Trading Securities [Line Items]
 
 
 
Trading Securities, Fair Value
35,580,000 
9,135,000 
32,201,000 
Trading Securities, Net Unrealized Gain (Loss)
$ 20,000 
$ (7,000)
$ (717,000)
Investment (Held-to-Maturity) Securities (Details) (USD $)
3 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Sep. 30, 2011
Schedule of Investment (Held-to-Maturity) Securities [Line Items]
 
 
 
 
Investment Securities, Amortized Cost
$ 648,843,000 
$ 676,047,000 
$ 612,770,000 
 
Investments Securities, Carrying Value
649,937,000 1
677,878,000 2
615,790,000 3
 
Investment securities, fair value
670,811,000 
687,127,000 
625,705,000 
 
Investment Securities, Gross Unrealized Gain
21,559,000 4
12,687,000 4
15,791,000 4
 
Investment Securities, Gross Unrealized Loss
(685,000)4
(3,438,000)4
(5,876,000)4
 
Investment Securities, Debt Maturities, Net Carrying Value [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Net Carrying Value
649,937,000 1
677,878,000 2
615,790,000 3
 
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Fair value
670,811,000 
687,127,000 
625,705,000 
 
Investment Securities, Debt Maturities, Nominal Yield [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Nominal Yield
3.17% 
 
 
 
Investment Securities, Pledged as Collateral [Abstract]
 
 
 
 
Investment Securities, Pledged as Collateral, Carrying Value
77,835,000 
89,087,000 
97,286,000 
 
Investment Securities, Pledged as Collateral, Fair Value
81,248,000 
91,804,000 
100,644,000 
 
Investment Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
 
 
 
 
Investment Securities, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions
72 
139 
163 
 
Investment Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
3,593,000 
192,538,000 
272,738,000 
 
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
105,767,000 
53,850,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Fair Value
109,360,000 
246,388,000 
272,738,000 
 
Investment Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
40,000 
2,526,000 
5,876,000 
 
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
645,000 
912,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss
685,000 
3,438,000 
5,876,000 
 
Other than Temporary Impairment Losses, Investment Securities, Portion Recognized in Earnings, Net, Qualitative Disclosures, Lowest Current Credit Rating [Abstract]
 
 
 
 
Investment Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Carrying Value
41,973,000 5
 
 
 
Investment Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Fair Value
44,176,000 5
 
 
 
Investment Securities, Portfolio Concentration Rated AAA to AA, Carrying Value
431,851,000 
 
 
 
Investment Securities, Portfolio Concentration Rated AAA to AA, Fair Value
447,315,000 
 
 
 
Investment Securities, Portfolio Concentration Rated A to BBB, Carrying Value
16,497,000 
 
 
 
Investment Securities, Portfolio Concentration Rated A to BBB, Fair Value
16,721,000 
 
 
 
Investment Securities, Portfolio Concentration Rated Below Investment Grade, Carrying Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated Below Investment Grade, Fair Value
0 
 
 
 
Investment Securities, Portfolio Concentration Not Rated, Carrying Value
159,616,000 
 
 
 
Investment Securities, Portfolio Concentration Not Rated, Fair Value
162,599,000 
 
 
 
Fixed Maturity Securities [Member]
 
 
 
 
Schedule of Investment (Held-to-Maturity) Securities [Line Items]
 
 
 
 
Investments Securities, Carrying Value
607,964,000 
 
 
 
Investment securities, fair value
626,635,000 
 
 
 
Investment Securities, Debt Maturities, Net Carrying Value [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less than One Year, Net Carrying Value
49,815,000 
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Net Carrying Value
329,761,000 
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Net Carrying Value
99,904,000 
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Net Carrying Value
128,484,000 
 
 
 
Investment Securities, Debt Maturities, Net Carrying Value
607,964,000 
 
 
 
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less Than One Year, Fair Value
50,045,000 
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Fair Value
332,282,000 
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Fair Value
102,780,000 
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Fair Value
141,528,000 
 
 
 
Investment Securities, Debt Maturities, Fair value
626,635,000 
 
 
 
Investment Securities, Debt Maturities, Nominal Yield [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less Than One Year, Nominal Yield
2.39% 
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Nominal Yield
2.01% 
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Nominal Yield
3.94% 
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Nominal Yield
6.02% 
 
 
 
Investment Securities, Debt Maturities, Nominal Yield
3.20% 
 
 
 
Investment Securities, Debt Maturities, Weighted Average Maturity
5.39 6
 
 
 
Municipal and other tax-exempt securities [Member]
 
 
 
 
Schedule of Investment (Held-to-Maturity) Securities [Line Items]
 
 
 
 
Investment Securities, Amortized Cost
425,221,000 
440,187,000 
375,317,000 
 
Investments Securities, Carrying Value
425,221,000 1
440,187,000 2
375,317,000 3
 
Investment securities, fair value
429,051,000 
439,870,000 
371,690,000 
 
Investment Securities, Gross Unrealized Gain
4,442,000 4
2,452,000 4
2,189,000 4
 
Investment Securities, Gross Unrealized Loss
(612,000)4
(2,769,000)4
(5,816,000)4
 
Investment Securities, Debt Maturities, Net Carrying Value [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less than One Year, Net Carrying Value
36,962,000 
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Net Carrying Value
296,908,000 
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Net Carrying Value
52,328,000 
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Net Carrying Value
39,023,000 
 
 
 
Investment Securities, Debt Maturities, Net Carrying Value
425,221,000 1
440,187,000 2
375,317,000 3
 
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less Than One Year, Fair Value
37,136,000 
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Fair Value
298,655,000 
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Fair Value
52,567,000 
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Fair Value
40,693,000 
 
 
 
Investment Securities, Debt Maturities, Fair value
429,051,000 
439,870,000 
371,690,000 
 
Investment Securities, Debt Maturities, Nominal Yield [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less Than One Year, Nominal Yield
1.99% 7
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Nominal Yield
1.70% 7
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Nominal Yield
2.64% 7
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Nominal Yield
5.35% 7
 
 
 
Investment Securities, Debt Maturities, Nominal Yield
2.18% 7
 
 
 
Investment Securities, Debt Maturities, Weighted Average Maturity
4.14 6
 
 
 
Investment Securities,Debt Maturities, Effective tax rate for nominal yield calculation
39.00% 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
 
 
 
 
Investment Securities, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions
42 
107 
149 
 
Investment Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
0 
166,382,000 
271,897,000 
 
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
104,959,000 
53,073,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Fair Value
104,959,000 
219,455,000 
271,897,000 
 
Investment Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
0 
1,921,000 
5,816,000 
 
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
612,000 
848,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss
612,000 
2,769,000 
5,816,000 
 
Other than Temporary Impairment Losses, Investment Securities, Portion Recognized in Earnings, Net, Qualitative Disclosures, Lowest Current Credit Rating [Abstract]
 
 
 
 
Investment Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Carrying Value
0 5
 
 
 
Investment Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Fair Value
0 5
 
 
 
Investment Securities, Portfolio Concentration Rated AAA to AA, Carrying Value
271,498,000 
 
 
 
Investment Securities, Portfolio Concentration Rated AAA to AA, Fair Value
272,244,000 
 
 
 
Investment Securities, Portfolio Concentration Rated A to BBB, Carrying Value
16,497,000 
 
 
 
Investment Securities, Portfolio Concentration Rated A to BBB, Fair Value
16,721,000 
 
 
 
Investment Securities, Portfolio Concentration Rated Below Investment Grade, Carrying Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated Below Investment Grade, Fair Value
0 
 
 
 
Investment Securities, Portfolio Concentration Not Rated, Carrying Value
137,226,000 
 
 
 
Investment Securities, Portfolio Concentration Not Rated, Fair Value
140,086,000 
 
 
 
Other debt securities [Member]
 
 
 
 
Schedule of Investment (Held-to-Maturity) Securities [Line Items]
 
 
 
 
Investment Securities, Amortized Cost
182,743,000 
187,509,000 
176,301,000 
 
Investments Securities, Carrying Value
182,743,000 1
187,509,000 2
176,301,000 3
 
Investment securities, fair value
197,584,000 
195,393,000 
187,219,000 
 
Investment Securities, Gross Unrealized Gain
14,914,000 4
8,497,000 4
10,978,000 4
 
Investment Securities, Gross Unrealized Loss
(73,000)4
(613,000)4
(60,000)4
 
Investment Securities, Debt Maturities, Net Carrying Value [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less than One Year, Net Carrying Value
12,853,000 
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Net Carrying Value
32,853,000 
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Net Carrying Value
47,576,000 
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Net Carrying Value
89,461,000 
 
 
 
Investment Securities, Debt Maturities, Net Carrying Value
182,743,000 1
187,509,000 2
176,301,000 3
 
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less Than One Year, Fair Value
12,909,000 
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Fair Value
33,627,000 
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Fair Value
50,213,000 
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Fair Value
100,835,000 
 
 
 
Investment Securities, Debt Maturities, Fair value
197,584,000 
195,393,000 
187,219,000 
 
Investment Securities, Debt Maturities, Nominal Yield [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Less Than One Year, Nominal Yield
3.54% 
 
 
 
Investment Securities, Debt Maturities, One to Five Years, Nominal Yield
4.78% 
 
 
 
Investment Securities, Debt Maturities, Six to Ten Years, Nominal Yield
5.37% 
 
 
 
Investment Securities, Debt Maturities, Over Ten Years, Nominal Yield
6.32% 
 
 
 
Investment Securities, Debt Maturities, Nominal Yield
5.60% 
 
 
 
Investment Securities, Debt Maturities, Weighted Average Maturity
8.32 6
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
 
 
 
 
Investment Securities, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions
30 
30 
14 
 
Investment Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
3,593,000 
10,932,000 
841,000 
 
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
808,000 
777,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Fair Value
4,401,000 
11,709,000 
841,000 
 
Investment Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
40,000 
549,000 
60,000 
 
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
33,000 
64,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss
73,000 
613,000 
60,000 
 
Other than Temporary Impairment Losses, Investment Securities, Portion Recognized in Earnings, Net, Qualitative Disclosures, Lowest Current Credit Rating [Abstract]
 
 
 
 
Investment Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Carrying Value
0 5
 
 
 
Investment Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Fair Value
0 5
 
 
 
Investment Securities, Portfolio Concentration Rated AAA to AA, Carrying Value
160,353,000 
 
 
 
Investment Securities, Portfolio Concentration Rated AAA to AA, Fair Value
175,071,000 
 
 
 
Investment Securities, Portfolio Concentration Rated A to BBB, Carrying Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated A to BBB, Fair Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated Below Investment Grade, Carrying Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated Below Investment Grade, Fair Value
0 
 
 
 
Investment Securities, Portfolio Concentration Not Rated, Carrying Value
22,390,000 
 
 
 
Investment Securities, Portfolio Concentration Not Rated, Fair Value
22,513,000 
 
 
 
U.S. agency residential mortgage-backed securities [Member] |
Other [Member]
 
 
 
 
Schedule of Investment (Held-to-Maturity) Securities [Line Items]
 
 
 
 
Investment Securities, Amortized Cost
40,879,000 
48,351,000 
61,152,000 
 
Investments Securities, Carrying Value
41,973,000 1
50,182,000 2
64,172,000 3
 
Investment securities, fair value
44,176,000 
51,864,000 
66,796,000 
 
Investment Securities, Gross Unrealized Gain
2,203,000 4
1,738,000 4
2,624,000 4
 
Investment Securities, Gross Unrealized Loss
0 4
(56,000)4
0 4
 
Investments Securities, Transfers [Abstract]
 
 
 
 
Investment Securities, Transferred From Available For Sale Securities Portfolio, Fair Value
 
 
 
131,000,000 
Investment Securities, Transferred From Available For Sale Securities Portfolio, Amortized Cost
 
 
 
118,000,000 
Investment Securities, Transferred From Available For Sale Securities Portfolio, Net Unrealized Gain
1,100,000 
1,800,000 
3,000,000 
13,000,000 
Investment Securities, Debt Maturities, Net Carrying Value [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Net Carrying Value
41,973,000 1
50,182,000 2
64,172,000 3
 
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Fair value
44,176,000 
51,864,000 
66,796,000 
 
Investment Securities, Debt Maturities, Nominal Yield [Abstract]
 
 
 
 
Investment Securities, Debt Maturities, Nominal Yield
2.74% 8
 
 
 
Investment Securities, Debt Maturities, Average Expected Life of Mortgage-backed Securities
2 years 11 months 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
 
 
 
 
Investment Securities, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions
0 
2 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
0 
15,224,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
0 
0 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Fair Value
0 
15,224,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
 
 
 
 
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
0 
56,000 
0 
 
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
0 
0 
0 
 
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss
0 
56,000 
0 
 
Other than Temporary Impairment Losses, Investment Securities, Portion Recognized in Earnings, Net, Qualitative Disclosures, Lowest Current Credit Rating [Abstract]
 
 
 
 
Investment Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Carrying Value
41,973,000 5
 
 
 
Investment Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Fair Value
44,176,000 5
 
 
 
Investment Securities, Portfolio Concentration Rated AAA to AA, Carrying Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated AAA to AA, Fair Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated A to BBB, Carrying Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated A to BBB, Fair Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated Below Investment Grade, Carrying Value
0 
 
 
 
Investment Securities, Portfolio Concentration Rated Below Investment Grade, Fair Value
0 
 
 
 
Investment Securities, Portfolio Concentration Not Rated, Carrying Value
0 
 
 
 
Investment Securities, Portfolio Concentration Not Rated, Fair Value
$ 0 
 
 
 
Available for Sale Securities (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended 66 Months Ended 3 Months Ended 66 Months Ended 3 Months Ended 66 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Jun. 30, 2014
Fixed Maturity Securities [Member]
Jun. 30, 2014
U.S. Treasury [Member]
Dec. 31, 2013
U.S. Treasury [Member]
Jun. 30, 2013
U.S. Treasury [Member]
Jun. 30, 2014
Municipal and other tax-exempt securities [Member]
Dec. 31, 2013
Municipal and other tax-exempt securities [Member]
Jun. 30, 2013
Municipal and other tax-exempt securities [Member]
Jun. 30, 2014
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
Dec. 31, 2013
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
Jun. 30, 2013
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
Jun. 30, 2014
Other debt securities [Member]
Dec. 31, 2013
Other debt securities [Member]
Jun. 30, 2013
Other debt securities [Member]
Jun. 30, 2014
Residential Mortgage Backed Securities [Member]
Dec. 31, 2013
Residential Mortgage Backed Securities [Member]
Jun. 30, 2013
Residential Mortgage Backed Securities [Member]
Jun. 30, 2014
U.S. agency residential mortgage-backed securities [Member]
Dec. 31, 2013
U.S. agency residential mortgage-backed securities [Member]
Jun. 30, 2013
U.S. agency residential mortgage-backed securities [Member]
Jun. 30, 2014
U.S. agency residential mortgage-backed securities [Member]
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Dec. 31, 2013
U.S. agency residential mortgage-backed securities [Member]
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Jun. 30, 2013
U.S. agency residential mortgage-backed securities [Member]
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Jun. 30, 2014
U.S. agency residential mortgage-backed securities [Member]
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Dec. 31, 2013
U.S. agency residential mortgage-backed securities [Member]
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Jun. 30, 2013
U.S. agency residential mortgage-backed securities [Member]
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Jun. 30, 2014
U.S. agency residential mortgage-backed securities [Member]
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Dec. 31, 2013
U.S. agency residential mortgage-backed securities [Member]
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Jun. 30, 2013
U.S. agency residential mortgage-backed securities [Member]
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Jun. 30, 2014
U.S. agency residential mortgage-backed securities [Member]
Other [Member]
Dec. 31, 2013
U.S. agency residential mortgage-backed securities [Member]
Other [Member]
Jun. 30, 2013
U.S. agency residential mortgage-backed securities [Member]
Other [Member]
Jun. 30, 2014
Privately issued residential mortgage-backed securities [Member]
Dec. 31, 2013
Privately issued residential mortgage-backed securities [Member]
Jun. 30, 2013
Privately issued residential mortgage-backed securities [Member]
Jun. 30, 2014
Privately issued residential mortgage-backed securities [Member]
Jun. 30, 2014
Privately issued residential mortgage-backed securities [Member]
Alt-A [Member]
Jun. 30, 2014
Privately issued residential mortgage-backed securities [Member]
Alt-A [Member]
Dec. 31, 2013
Privately issued residential mortgage-backed securities [Member]
Alt-A [Member]
Jun. 30, 2013
Privately issued residential mortgage-backed securities [Member]
Alt-A [Member]
Jun. 30, 2014
Privately issued residential mortgage-backed securities [Member]
Jumbo-A Loans [Member]
Jun. 30, 2014
Privately issued residential mortgage-backed securities [Member]
Jumbo-A Loans [Member]
Dec. 31, 2013
Privately issued residential mortgage-backed securities [Member]
Jumbo-A Loans [Member]
Jun. 30, 2013
Privately issued residential mortgage-backed securities [Member]
Jumbo-A Loans [Member]
Jun. 30, 2014
Perpetual Preferred, Equity Securities and Mutual Funds [Member]
Jun. 30, 2014
Perpetual preferred stock [Member]
Dec. 31, 2013
Perpetual preferred stock [Member]
Jun. 30, 2013
Perpetual preferred stock [Member]
Jun. 30, 2014
Equity securities and mutual funds [Member]
Dec. 31, 2013
Equity securities and mutual funds [Member]
Jun. 30, 2013
Equity securities and mutual funds [Member]
Schedule of Available-for-sale Securities [Line Items]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Amortized Cost Basis
$ 9,613,666 
$ 10,655,841 
$ 9,613,666 
$ 10,655,841 
$ 10,185,091 
$ 2,228,976 
$ 1,023 
$ 1,042 
$ 1,061 
$ 63,931 
$ 73,232 
$ 95,974 
$ 2,129,521 
$ 2,100,146 
$ 1,885,585 
$ 34,501 
$ 35,061 
$ 35,622 
$ 7,343,012 
$ 7,934,370 
$ 8,595,437 
$ 7,174,193 
$ 7,720,189 
$ 8,303,052 
$ 4,297,579 
$ 4,224,327 
$ 4,648,337 
$ 2,055,924 
$ 2,308,341 
$ 2,695,506 
$ 815,201 
$ 1,151,225 
$ 916,646 
$ 5,489 
$ 36,296 
$ 42,563 
$ 168,819 
$ 214,181 
$ 292,385 
$ 168,819 
$ 70,880 
$ 70,880 
$ 104,559 
$ 113,804 
$ 97,939 
$ 97,939 
$ 109,622 
$ 178,581 
$ 41,678 
$ 22,171 
$ 22,171 
$ 22,172 
$ 19,507 
$ 19,069 
$ 19,990 
Available-for-sale Securities, Fair Value
9,699,146 
10,698,074 
9,699,146 
10,698,074 
10,147,162 
2,215,817 
1,024 
1,042 
1,060 
64,970 
73,775 
95,103 
2,115,295 
2,055,804 
1,846,943 
34,528 
35,241 
35,894 
7,438,546 
7,937,109 
8,669,970 
7,259,504 
7,716,010 
8,372,795 
4,364,168 
4,232,332 
4,687,141 
2,068,940 
2,293,943 
2,715,896 
820,454 
1,152,128 
925,081 
5,942 
37,607 
44,677 
179,042 
221,099 
297,175 
179,042 
75,700 
75,700 
107,212 
115,036 
103,342 
103,342 
113,887 
182,139 
44,783 
24,730 
22,863 
25,583 
20,053 
21,328 
23,521 
Available-for-sale Securities, Gross Unrealized Gain
140,165 1
141,240 1
140,165 1
141,240 1
120,120 1
 
1 1
0 1
0 1
1,624 1
1,606 1
1,653 1
5,539 1
1,042 1
343 1
195 1
368 1
479 1
129,467 1
114,073 1
131,590 1
118,758 1
104,713 1
124,556 1
82,436 1
68,154 1
78,285 1
27,019 1
25,813 1
32,994 1
8,850 1
9,435 1
11,163 1
453 1
1,311 1
2,114 1
10,709 1
9,360 1
7,034 1
10,709 1
4,820 1
4,820 1
4,386 1
2,905 1
5,889 1
5,889 1
4,974 1
4,129 1
 
2,559 1
705 1
3,439 1
780 1
2,326 1
3,736 1
Available-for-sale Securities, Gross Unrealized Loss
(54,199)1
(96,383)1
(54,199)1
(96,383)1
(155,607)1
 
0 1
0 1
(1)1
(585)1
(1,063)1
(1,870)1
(19,765)1
(45,384)1
(38,985)1
(168)1
(188)1
(207)1
(33,447)1
(108,892)1
(55,087)1
(33,447)1
(108,892)1
(54,813)1
(15,847)1
(60,149)1
(39,481)1
(14,003)1
(40,211)1
(12,604)1
(3,597)1
(8,532)1
(2,728)1
0 1
0 1
0 1
0 1
0 1
(274)1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
(274)1
 
0 1
(13)1
(28)1
(234)1
(67)1
(205)1
Available-for-Sale Securities, Other Than Temporary Impairments
(486)2
(2,624)2
(486)2
(2,624)2
(2,442)2
 
0 2
0 2
0 2
0 2
0 2
(654)2
0 2
0 2
0 2
0 2
0 2
0 2
(486)2
(2,442)2
(1,970)2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
0 2
(486)2
(2,442)2
(1,970)2
(486)2
0 2
0 2
(1,733)2
(1,673)2
(486)2
(486)2
(709)2
(297)2
 
0 2
0 2
0 2
0 2
0 2
0 2
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Less than One Year, Amortized Cost Basis
 
 
 
 
 
34,528 
1,023 
 
 
3,404 
 
 
0 
 
 
30,101 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, One to Five Years, Amortized Cost Basis
 
 
 
 
 
660,293 
0 
 
 
33,797 
 
 
626,496 
 
 
0 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Amortized Cost Basis
 
 
 
 
 
1,159,043 
0 
 
 
2,778 
 
 
1,156,265 
 
 
0 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Over Ten Years, Amortized Cost Basis
 
 
 
 
 
375,112 
0 
 
 
23,952 
 
 
346,760 
 
 
4,400 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Less than One Year, Fair Value
 
 
 
 
 
34,753 
1,024 
 
 
3,432 
 
 
0 
 
 
30,297 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, One to Five Years, Fair Value
 
 
 
 
 
659,973 
0 
 
 
35,004 
 
 
624,969 
 
 
0 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Six to Ten Years, Fair Value
 
 
 
 
 
1,149,964 
0 
 
 
3,032 
 
 
1,146,932 
 
 
0 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Over Ten Years, Fair Value
 
 
 
 
 
371,127 
0 
 
 
23,502 
 
 
343,394 
 
 
4,231 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Less than One Year, Nominal Yield
 
 
 
 
 
1.97% 
0.24% 
 
 
3.96% 3
 
 
0.00% 
 
 
1.80% 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, One to Five Years, Nominal Yield
 
 
 
 
 
1.44% 
0.00% 
 
 
4.00% 3
 
 
1.30% 
 
 
0.00% 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Nominal Yield
 
 
 
 
 
1.64% 
0.00% 
 
 
6.25% 3
 
 
1.63% 
 
 
0.00% 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Over Ten Years, Nominal Yield
 
 
 
 
 
1.32% 
0.00% 
 
 
1.92% 3 4
 
 
1.27% 
 
 
1.71% 4
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Nominal Yield
1.79% 
 
1.79% 
 
 
1.53% 
0.24% 
 
 
3.32% 3
 
 
1.47% 
 
 
1.79% 
 
 
1.87% 5
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1.26% 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Weighted Average Maturity
 
 
 
 
 
8.77 6
0.63 6
 
 
8.67 6
 
 
8.84 6
 
 
4.64 6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Effective tax rate for nominal yield calculation
 
 
 
 
 
 
 
 
 
39.00% 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Average Expected Life of Mortgage-backed Securities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3 years 6 months 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Debt Maturities, Number of days for interest rates to reset
 
 
 
 
 
 
 
 
 
35 days 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Gross Realized Gain (Loss), Disclosures [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Proceeds
800,405 
1,083,001 
1,331,190 
1,784,881 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Gross realized gains
9,894 
9,992 
16,327 
15,784 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Gross realized losses
(9,890)
(6,239)
(15,083)
(7,176)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Related federal and state income tax expense
2 
1,460 
484 
3,349 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Pledged as Collateral [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Pledged As Collateral, Amortized cost
5,556,130 
5,078,098 
5,556,130 
5,078,098 
5,171,782 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Pledged As Collateral, Fair value
5,583,008 
5,103,507 
5,583,008 
5,103,507 
5,133,530 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions
289 
347 
289 
347 
446 
 
 
 
1 
23 
27 
86 7
96 
123 
113 
2 
3 
4 
88 
174 
135 
77 
158 
123 
33 
81 
72 
37 
50 
38 
7 
27 
13 
 
 
 
11 8
16 9
12 7
11 8
0 8
0 8
7 9
10 7
11 8
11 8
9 9
2 7
 
0 
1 
1 
80 
118 
7 
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, OTTI Portion, Number of Positions
 
 
 
 
 
 
 
 
 
 
 
21 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0 
0 
7 
10 
11 
11 
9 
2 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
473,163 
5,476,851 
473,163 
5,476,851 
6,230,595 
 
 
 
1,060 
571 
13,286 
66,168 7
114,048 
1,800,717 
1,730,306 
0 
4,712 
5,193 
353,246 
4,404,822 
3,665,593 
333,270 
4,379,137 
3,596,297 
0 
2,281,491 
2,196,603 
255,401 
1,450,588 
1,202,545 
77,869 
647,058 
197,149 
 
 
 
19,976 8
25,685 9
69,296 7
19,976 8
0 8
0 8
11,043 9
51,681 7
19,976 8
19,976 8
14,642 9
17,615 7
 
0 
4,988 
4,973 
5,298 
2,070 
3,558 
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
3,027,527 
15,677 
3,027,527 
15,677 
50,865 
 
 
 
0 
22,270 
17,805 
0 7
1,242,462 
2,286 
0 
4,231 
0 
0 
1,757,258 
30,774 
15,677 
1,757,258 
0 
0 
890,711 
0 
0 
712,951 
0 
0 
153,596 
0 
0 
 
 
 
0 8
30,774 9
15,677 7
0 8
0 8
0 8
30,774 9
3,379 7
0 8
0 8
0 9
12,298 7
 
0 
0 
0 
1,306 
0 
0 
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
3,500,690 
5,492,528 
3,500,690 
5,492,528 
6,281,460 
 
 
 
1,060 
22,841 
31,091 
66,168 7
1,356,510 
1,803,003 
1,730,306 
4,231 
4,712 
5,193 
2,110,504 
4,435,596 
3,681,270 
2,090,528 
4,379,137 
3,596,297 
890,711 
2,281,491 
2,196,603 
968,352 
1,450,588 
1,202,545 
231,465 
647,058 
197,149 
 
 
 
19,976 8
56,459 9
84,973 7
19,976 8
0 8
0 8
41,817 9
55,060 7
19,976 8
19,976 8
14,642 9
29,913 7
 
0 
4,988 
4,973 
6,604 
2,070 
3,558 
Available-for-sale Securities, Continuous Unrealized Loss Position, Less Than Twelve Months, OTTI Portion, Fair Value
 
 
 
 
 
 
 
 
 
 
 
11,731 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0 
0 
11,043 
51,681 
19,976 
19,976 
14,642 
17,615 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, OTTI Portion, Fair Value
 
 
 
 
 
 
 
 
 
 
 
0 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0 
0 
30,774 
3,379 
0 
0 
0 
0 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, OTTI Portion, Fair Value
 
 
 
 
 
 
 
 
 
 
 
11,731 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0 
0 
41,817 
55,060 
19,976 
19,976 
14,642 
17,615 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
2,126 
98,295 
2,126 
98,295 
156,172 
 
 
 
1 
0 
245 
2,524 7
488 
45,302 
38,985 
0 
188 
207 
1,443 
110,357 
56,345 
957 
108,892 
54,813 
0 
60,149 
39,481 
951 
40,211 
12,604 
6 
8,532 
2,728 
 
 
 
486 8
1,465 9
1,532 7
486 8
0 8
0 8
756 9
1,236 7
486 8
486 8
709 9
296 7
 
0 
13 
28 
195 
67 
205 
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
52,559 
712 
52,559 
712 
1,877 
 
 
 
0 
585 
818 
0 7
19,277 
82 
0 
168 
0 
0 
32,490 
977 
712 
32,490 
0 
0 
15,847 
0 
0 
13,052 
0 
0 
3,591 
0 
0 
 
 
 
0 8
977 9
712 7
0 8
0 8
0 8
977 9
437 7
0 8
0 8
0 9
275 7
 
0 
0 
0 
39 
0 
0 
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
54,685 
99,007 
54,685 
99,007 
158,049 
 
 
 
1 
585 
1,063 
2,524 7
19,765 
45,384 
38,985 
168 
188 
207 
33,933 
111,334 
57,057 
33,447 
108,892 
54,813 
15,847 
60,149 
39,481 
14,003 
40,211 
12,604 
3,597 
8,532 
2,728 
 
 
 
486 8
2,442 9
2,244 7
486 8
0 8
0 8
1,733 9
1,673 7
486 8
486 8
709 9
571 7
 
0 
13 
28 
234 
67 
205 
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses
 
 
 
 
 
 
 
 
 
 
 
654 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0 
0 
756 
1,236 
486 
486 
709 
296 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, OTTI Portion, Aggregate Losses
 
 
 
 
 
 
 
 
 
 
 
0 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0 
0 
977 
437 
0 
0 
0 
0 
 
 
 
 
 
 
 
Available-for-sale Securities, Continuous Unrealized Loss Position, OTTI Portion, Aggregate Losses
 
 
 
 
 
 
 
 
 
 
 
654 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0 
0 
1,733 
1,673 
486 
486 
709 
296 
 
 
 
 
 
 
 
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Portion Recognized In Earnings, Net Qualitative Disclosures, Lowest Current Credit Rating [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Amortized Cost
9,304,737 10
 
9,304,737 10
 
 
 
1,023 10
 
 
0 10
 
 
2,129,521 10
 
 
0 10
 
 
7,174,193 10
 
 
7,174,193 10
 
 
4,297,579 10
 
 
2,055,924 10
 
 
815,201 10
 
 
5,489 10
 
 
0 10
 
 
0 10
0 10
0 10
 
 
0 10
0 10
 
 
 
0 10
 
 
0 10
 
 
Available-for-sale Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Fair Value
9,375,823 10
 
9,375,823 10
 
 
 
1,024 10
 
 
0 10
 
 
2,115,295 10
 
 
0 10
 
 
7,259,504 10
 
 
7,259,504 10
 
 
4,364,168 10
 
 
2,068,940 10
 
 
820,454 10
 
 
5,942 10
 
 
0 10
 
 
0 10
0 10
0 10
 
 
0 10
0 10
 
 
 
0 10
 
 
0 10
 
 
Available-for-sale securities, Portfolio Concentration Rated AAA To AA, Amortized Cost
45,371 
 
45,371 
 
 
 
0 
 
 
40,967 
 
 
0 
 
 
4,400 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
0 
0 
 
 
0 
0 
 
 
 
0 
 
 
4 
 
 
Available-for-sale Securities, Portfolio Concentration Rated AAA To AA, Fair Value
47,096 
 
47,096 
 
 
 
0 
 
 
42,360 
 
 
0 
 
 
4,231 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
0 
0 
 
 
0 
0 
 
 
 
0 
 
 
505 
 
 
Available-for-sale Securities, Portfolio Concentration Rated A To BBB, Amortized Cost
53,012 
 
53,012 
 
 
 
0 
 
 
11,505 
 
 
0 
 
 
30,101 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
0 
0 
 
 
0 
0 
 
 
 
11,406 
 
 
0 
 
 
Available-for-sale Securities, Portfolio Concentration Rated A To BBB, Fair Value
54,110 
 
54,110 
 
 
 
0 
 
 
11,225 
 
 
0 
 
 
30,297 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
0 
0 
 
 
0 
0 
 
 
 
12,588 
 
 
0 
 
 
Available-for-sale Securities, Portfolio Concentration Rated Below Investment Grade, Amortized Cost
179,584 
 
179,584 
 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
168,819 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
168,819 
 
 
168,819 
70,880 
70,880 
 
 
97,939 
97,939 
 
 
 
10,765 
 
 
0 
 
 
Available-for-sale Securities, Portfolio Concentration Rated Below Investment Grade, Fair Value
191,184 
 
191,184 
 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
179,042 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
179,042 
 
 
179,042 
75,700 
75,700 
 
 
103,342 
103,342 
 
 
 
12,142 
 
 
0 
 
 
Available-for-sale Securities, Portfolio Concentration Not Rated, Amortized Cost
30,962 
 
30,962 
 
 
 
0 
 
 
11,459 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
0 
0 
 
 
0 
0 
 
 
 
0 
 
 
19,503 
 
 
Available-for-sale Securities, Portfolio Concentration Not Rated, Fair Value
30,933 
 
30,933 
 
 
 
0 
 
 
11,385 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
 
 
0 
0 
0 
 
 
0 
0 
 
 
 
0 
 
 
19,548 
 
 
Other Than Temporary Impairment Losses, Investments, Available-for-sale Securities, Portion Recognized in Earnings, Net, Qualitative Disclosures, Assumptions Used to Develop Projected Cash Flows [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Unemployment rate
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Held constant at 6.7% over the next 12 months and remains at 6.7% thereafter. 
Increasing to 7.3% over the next 12 months and remain at 7.3% thereafter. 
Increasing to 8% over the next 12 months and remain at 8% thereafter. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Housing price appreciation/depreciation
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 4% over the next 12 months, then flat for the following 12 months and then appreciating at 2% per year thereafter. 11
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 4% over the next 12 months, then flat for the following 12 months and then appreciating at 2% per year thereafter. 11
Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 5% over the next 12 months, then flat for he following 12 months and then appreciating at 2% per year thereafter. 11
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Estimated liquidation costs
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company. 
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company. 
Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Discount rates
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields. 
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields. 
Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Portion Recognized in Earnings, Net Qualitative Disclosures, Privately Issued Mortgage-backed Securities [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Privately Issued Residential Mortgage-backed Securities, Number of Securities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
44 
 
 
44 
14 
14 
 
 
30 
30 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Privately Issued Residential Mortgage-backed Securities, Credit losses Recognized [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale Securities, Privately Issued Residential Mortgage-backed Securities, Number of Securities with Credit Losses In Current Period
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0 
 
 
43 
0 
14 
 
 
0 
29 
 
 
 
 
 
 
 
 
 
Amount of Credit Losses Recognized in Current Period
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
$ 0 
 
 
$ 54,347 
$ 0 
$ 36,127 
 
 
$ 0 
$ 18,220 
 
 
 
 
 
 
 
 
 
Rollforward of Credit-Related Other-than-temporary Impairment Recognized in Earnings (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
 
 
 
 
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Beginning Balance
$ 54,347 
$ 75,475 
$ 67,346 
$ 75,228 
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment
0 
552 
0 
552 
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses
0 
0 
0 
247 
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Change in Status
0 
0 
0 
0 
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold
0 
0 
(12,999)
0 
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Ending Balance
$ 54,347 
$ 76,027 
$ 54,347 
$ 76,027 
Securities Fair Value Option Securities (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Schedule of Fair Value Option Securities [Line Items]
 
 
 
Fair Value Option Securities, Fair Value
$ 185,674 
$ 167,125 
$ 205,756 
Fair Value Option Securities, Unrealized Gain or Loss
(1,333)
(8,169)
(8,056)
U.S. agency residential mortgage-backed securities [Member]
 
 
 
Schedule of Fair Value Option Securities [Line Items]
 
 
 
Fair Value Option Securities, Fair Value
181,205 
157,431 
203,816 
Fair Value Option Securities, Unrealized Gain or Loss
(1,720)
(8,378)
(8,048)
Other debt securities [Member]
 
 
 
Schedule of Fair Value Option Securities [Line Items]
 
 
 
Fair Value Option Securities, Fair Value
4,469 
9,694 
1,940 
Fair Value Option Securities, Unrealized Gain or Loss
$ 387 
$ 209 
$ (8)
Securities Restricted Equity Securities (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Restricted Equity Securities [Abstract]
 
 
 
Federal Reserve stock
$ 33,971 
$ 33,742 
$ 33,695 
Federal Home Loan Bank stock
57,242 
51,498 
124,152 
Total
$ 91,213 
$ 85,240 
$ 157,847 
Derivatives, Fair Value of Derivatives Contracts (Details) (USD $)
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derviative contracts, net of cash collateral, assets
$ 357,680,000 
$ 265,012,000 
$ 546,206,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Fair Value, Net of Cash Collateral
297,851,000 
247,185,000 
521,991,000 
Increase in cash margin obligation for derivative holdings with a decrease in credit rating from A1 to below investment grade
21,000,000 
 
 
Not Designated as Hedging Instrument [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
17,391,369,000 1
13,812,049,000 1
19,831,867,000 1
Derivative Liabilities, Notional
17,581,900,000 1
13,974,098,000 1
19,906,435,000 1
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
436,508,000 
351,683,000 
859,432,000 
Derivative Assets, Netting Adjustments
(77,138,000)
(77,746,000)
(308,121,000)
Derivative Assets, Net Fair Value Before Cash Collateral
359,370,000 
273,937,000 
551,311,000 
Derivative Asset, Cash Collateral
(1,690,000)
(8,925,000)
(5,105,000)
Derviative contracts, net of cash collateral, assets
357,680,000 
265,012,000 
546,206,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
434,022,000 
349,133,000 
855,358,000 
Derivative Liabilities, Netting Adjustments
(77,138,000)
(77,746,000)
(308,121,000)
Derivative Liabilities, Net Fair Value Before Cash Collateral
356,884,000 
271,387,000 
547,237,000 
Derivative Liabilities, Fair Value, Cash Collateral
(59,033,000)
(24,202,000)
(25,246,000)
Derivative Liabilities, Fair Value, Net of Cash Collateral
297,851,000 
247,185,000 
521,991,000 
Not Designated as Hedging Instrument [Member] |
To-be-announced residential mortgage-backed securities [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
14,576,481,000 1
10,817,159,000 1
16,351,395,000 1
Derivative Liabilities, Notional
14,734,106,000 1
10,982,049,000 1
16,439,531,000 1
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
134,411,000 
102,921,000 
545,290,000 
Derivative Assets, Netting Adjustments
(53,746,000)
(46,623,000)
(268,087,000)
Derivative Assets, Net Fair Value Before Cash Collateral
80,665,000 
56,298,000 
277,203,000 
Derivative Asset, Cash Collateral
0 
0 
0 
Derviative contracts, net of cash collateral, assets
80,665,000 
56,298,000 
277,203,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
131,256,000 
99,830,000 
540,540,000 
Derivative Liabilities, Netting Adjustments
(53,746,000)
(46,623,000)
(268,087,000)
Derivative Liabilities, Net Fair Value Before Cash Collateral
77,510,000 
53,207,000 
272,453,000 
Derivative Liabilities, Fair Value, Cash Collateral
0 
0 
0 
Derivative Liabilities, Fair Value, Net of Cash Collateral
77,510,000 
53,207,000 
272,453,000 
Not Designated as Hedging Instrument [Member] |
Interest rate swaps [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
1,266,228,000 1
1,283,379,000 1
1,381,836,000 1
Derivative Liabilities, Notional
1,266,228,000 1
1,283,379,000 1
1,381,836,000 1
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
39,974,000 
44,124,000 
51,745,000 
Derivative Assets, Netting Adjustments
0 
0 
0 
Derivative Assets, Net Fair Value Before Cash Collateral
39,974,000 
44,124,000 
51,745,000 
Derivative Asset, Cash Collateral
0 
(731,000)
0 
Derviative contracts, net of cash collateral, assets
39,974,000 
43,393,000 
51,745,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
40,218,000 
44,377,000 
52,095,000 
Derivative Liabilities, Netting Adjustments
0 
0 
0 
Derivative Liabilities, Net Fair Value Before Cash Collateral
40,218,000 
44,377,000 
52,095,000 
Derivative Liabilities, Fair Value, Cash Collateral
(19,700,000)
(17,853,000)
(19,381,000)
Derivative Liabilities, Fair Value, Net of Cash Collateral
20,518,000 
26,524,000 
32,714,000 
Not Designated as Hedging Instrument [Member] |
Energy contracts [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
1,063,840,000 1
1,263,266,000 1
1,501,959,000 1
Derivative Liabilities, Notional
1,049,835,000 1
1,216,426,000 1
1,441,957,000 1
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
67,831,000 
48,078,000 
65,414,000 
Derivative Assets, Netting Adjustments
(23,169,000)
(29,957,000)
(35,376,000)
Derivative Assets, Net Fair Value Before Cash Collateral
44,662,000 
18,121,000 
30,038,000 
Derivative Asset, Cash Collateral
0 
(2,575,000)
(2,537,000)
Derviative contracts, net of cash collateral, assets
44,662,000 
15,546,000 
27,501,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
66,742,000 
46,095,000 
63,515,000 
Derivative Liabilities, Netting Adjustments
(23,169,000)
(29,957,000)
(35,376,000)
Derivative Liabilities, Net Fair Value Before Cash Collateral
43,573,000 
16,138,000 
28,139,000 
Derivative Liabilities, Fair Value, Cash Collateral
(36,355,000)
(6,055,000)
(5,865,000)
Derivative Liabilities, Fair Value, Net of Cash Collateral
7,218,000 
10,083,000 
22,274,000 
Not Designated as Hedging Instrument [Member] |
Agricultural contracts [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
36,050,000 1
100,886,000 1
207,439,000 1
Derivative Liabilities, Notional
36,036,000 1
99,191,000 1
207,329,000 1
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
2,528,000 
2,060,000 
5,871,000 
Derivative Assets, Netting Adjustments
(223,000)
(1,166,000)
(4,658,000)
Derivative Assets, Net Fair Value Before Cash Collateral
2,305,000 
894,000 
1,213,000 
Derivative Asset, Cash Collateral
0 
0 
0 
Derviative contracts, net of cash collateral, assets
2,305,000 
894,000 
1,213,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
2,538,000 
2,009,000 
5,824,000 
Derivative Liabilities, Netting Adjustments
(223,000)
(1,166,000)
(4,658,000)
Derivative Liabilities, Net Fair Value Before Cash Collateral
2,315,000 
843,000 
1,166,000 
Derivative Liabilities, Fair Value, Cash Collateral
(2,298,000)
0 
0 
Derivative Liabilities, Fair Value, Net of Cash Collateral
17,000 
843,000 
1,166,000 
Not Designated as Hedging Instrument [Member] |
Foreign exchange contracts [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
242,866,000 1
136,543,000 1
177,643,000 1
Derivative Liabilities, Notional
242,791,000 1
135,237,000 1
177,187,000 1
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
174,802,000 
136,543,000 
177,643,000 
Derivative Assets, Netting Adjustments
0 
0 
0 
Derivative Assets, Net Fair Value Before Cash Collateral
174,802,000 
136,543,000 
177,643,000 
Derivative Asset, Cash Collateral
0 
(2,147,000)
0 
Derviative contracts, net of cash collateral, assets
174,802,000 
134,396,000 
177,643,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
174,477,000 
135,237,000 
177,187,000 
Derivative Liabilities, Netting Adjustments
0 
0 
0 
Derivative Liabilities, Net Fair Value Before Cash Collateral
174,477,000 
135,237,000 
177,187,000 
Derivative Liabilities, Fair Value, Cash Collateral
(680,000)
(294,000)
0 
Derivative Liabilities, Fair Value, Net of Cash Collateral
173,797,000 
134,943,000 
177,187,000 
Not Designated as Hedging Instrument [Member] |
Equity option contracts [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
205,904,000 1
210,816,000 1
211,595,000 1
Derivative Liabilities, Notional
205,904,000 1
210,816,000 1
211,595,000 1
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
16,962,000 
17,957,000 
13,469,000 
Derivative Assets, Netting Adjustments
0 
0 
0 
Derivative Assets, Net Fair Value Before Cash Collateral
16,962,000 
17,957,000 
13,469,000 
Derivative Asset, Cash Collateral
(1,690,000)
(3,472,000)
(2,568,000)
Derviative contracts, net of cash collateral, assets
15,272,000 
14,485,000 
10,901,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
16,962,000 
17,957,000 
13,469,000 
Derivative Liabilities, Netting Adjustments
0 
0 
0 
Derivative Liabilities, Net Fair Value Before Cash Collateral
16,962,000 
17,957,000 
13,469,000 
Derivative Liabilities, Fair Value, Cash Collateral
0 
0 
0 
Derivative Liabilities, Fair Value, Net of Cash Collateral
16,962,000 
17,957,000 
13,469,000 
Not Designated as Hedging Instrument [Member] |
Customer risk management programs [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
17,391,369,000 1
13,812,049,000 1
19,831,867,000 1
Derivative Liabilities, Notional
17,534,900,000 1
13,927,098,000 1
19,859,435,000 1
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
436,508,000 
351,683,000 
859,432,000 
Derivative Assets, Netting Adjustments
(77,138,000)
(77,746,000)
(308,121,000)
Derivative Assets, Net Fair Value Before Cash Collateral
359,370,000 
273,937,000 
551,311,000 
Derivative Asset, Cash Collateral
(1,690,000)
(8,925,000)
(5,105,000)
Derviative contracts, net of cash collateral, assets
357,680,000 
265,012,000 
546,206,000 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
432,193,000 
345,505,000 
852,630,000 
Derivative Liabilities, Netting Adjustments
(77,138,000)
(77,746,000)
(308,121,000)
Derivative Liabilities, Net Fair Value Before Cash Collateral
355,055,000 
267,759,000 
544,509,000 
Derivative Liabilities, Fair Value, Cash Collateral
(59,033,000)
(24,202,000)
(25,246,000)
Derivative Liabilities, Fair Value, Net of Cash Collateral
296,022,000 
243,557,000 
519,263,000 
Not Designated as Hedging Instrument [Member] |
Interest rate risk management programs [Member]
 
 
 
Notional Amount of Derivatives [Abstract]
 
 
 
Derivative Assets, Notional
0 1
0 1
0 1
Derivative Liabilities, Notional
47,000,000 1
47,000,000 1
47,000,000 1
Derivatives, Notional
47,000,000 1
 
 
Derivative Assets, Fair Value, Net [Abstract]
 
 
 
Derivative Assets, Gross Fair Value
0 
0 
0 
Derivative Assets, Netting Adjustments
0 
0 
0 
Derivative Assets, Net Fair Value Before Cash Collateral
0 
0 
0 
Derivative Asset, Cash Collateral
0 
0 
0 
Derviative contracts, net of cash collateral, assets
0 
0 
0 
Derivative Liabilities, Fair Value, Net [Abstract]
 
 
 
Derivative Liabilities, Gross Fair Value
1,829,000 
3,628,000 
2,728,000 
Derivative Liabilities, Netting Adjustments
0 
0 
0 
Derivative Liabilities, Net Fair Value Before Cash Collateral
1,829,000 
3,628,000 
2,728,000 
Derivative Liabilities, Fair Value, Cash Collateral
0 
0 
0 
Derivative Liabilities, Fair Value, Net of Cash Collateral
$ 1,829,000 
$ 3,628,000 
$ 2,728,000 
Derivatives, Derivatives Instruments Gain (Loss) in Income Statement (Details) (Not Designated as Hedging Instrument [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
$ 3,732 
$ 5,169 
$ 5,232 
$ 8,000 
Gain (Loss) on Derivatives, Net
831 
(2,527)
1,799 
(3,468)
To-be-announced residential mortgage-backed securities [Member]
 
 
 
 
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
224 
1,716 
64 
1,701 
Gain (Loss) on Derivatives, Net
0 
0 
0 
0 
Interest rate swaps [Member]
 
 
 
 
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
524 
768 
1,031 
1,535 
Gain (Loss) on Derivatives, Net
0 
0 
0 
0 
Energy contracts [Member]
 
 
 
 
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
2,613 
2,436 
3,484 
4,219 
Gain (Loss) on Derivatives, Net
0 
0 
0 
0 
Agricultural contracts [Member]
 
 
 
 
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
38 
77 
101 
185 
Gain (Loss) on Derivatives, Net
0 
0 
0 
0 
Foreign exchange contracts [Member]
 
 
 
 
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
333 
172 
552 
360 
Gain (Loss) on Derivatives, Net
0 
0 
0 
0 
Equity option contracts [Member]
 
 
 
 
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
0 
0 
0 
0 
Gain (Loss) on Derivatives, Net
0 
0 
0 
0 
Customer risk management programs [Member]
 
 
 
 
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
3,732 
5,169 
5,232 
8,000 
Gain (Loss) on Derivatives, Net
0 
0 
0 
0 
Interest rate risk management programs [Member]
 
 
 
 
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract]
 
 
 
 
Brokergage and Trading Revenue
0 
0 
0 
0 
Gain (Loss) on Derivatives, Net
$ 831 
$ (2,527)
$ 1,799 
$ (3,468)
Loans and Allowance for Credit Losses Part 1 (Details) (USD $)
6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Loan receivables disclosure [Abstract]
 
 
 
Loans, fixed rate of interest
$ 4,293,820,000 
$ 4,327,637,000 
$ 4,057,409,000 
Loans, variable rate of interest
9,036,358,000 
8,363,478,000 
8,261,240,000 
Loans, non-accrual
96,680,000 
101,149,000 
122,133,000 
Total
13,426,858,000 
12,792,264,000 
12,440,782,000 
Accruing loans past due (90 days)
67,000 1
1,415,000 1
2,460,000 1
Loans receivable, other information [Abstract]
 
 
 
Amount of total loan portfolio to businesses and individuals in Texas
4,400,000,000 
 
 
Percentage of total loan portfolio to businesses and individuals in Texas (in hundredths)
33.00% 
 
 
Amount of total loan portfolio to businesses and individuals in Oklahoma
3,400,000,000 
 
 
Percentage of total loan portfolio to businesses and individuals in Oklahoma (in hundredths)
26.00% 
 
 
Credit Commitments [Abstract]
 
 
 
Outstanding commitments to extend credit
7,500,000,000 
 
 
Outstanding standby letters of credit
469,000,000 
 
 
Outstanding commercial letters of credit
11,000,000 
 
 
Commercial [Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Loans, fixed rate of interest
1,681,348,000 
1,637,620,000 
1,447,823,000 
Loans, variable rate of interest
6,669,210,000 
6,288,841,000 
6,239,428,000 
Loans, non-accrual
17,103,000 
16,760,000 
20,869,000 
Total
8,367,661,000 
7,943,221,000 
7,708,120,000 
Loans receivable, other information [Abstract]
 
 
 
Amount of loan portfolio to businesses in Texas
2,800,000,000 
 
 
Percentage of loan portfolio to businesses in Texas (in hundredths)
34.00% 
 
 
Amount of loan portfolio to businesses in Oklahoma
2,000,000,000 
 
 
Percentage of loan portfolio to businesses in Oklahoma (in hundredths)
24.00% 
 
 
Energy [Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Total
2,419,788,000 
2,351,760,000 
2,384,746,000 
Loans receivable, other information [Abstract]
 
 
 
Percentage of energy loans in loan portfolio
18.00% 
 
 
Amount of loans to energy producers
2,100,000,000 
 
 
Percentage of committed energy production loans secured by oil
59.00% 
 
 
Percentage of committed energy production loans secured by natural gas
41.00% 
 
 
Services [Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Total
2,377,065,000 
2,282,210,000 
2,204,253,000 
Loans receivable, other information [Abstract]
 
 
 
Amount of loans with individual balances less than $10 million
1,200,000,000 
 
 
Maximum loan amount for certain individual loans in category
10,000,000 
 
 
Commercial Real Estate [Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Loans, fixed rate of interest
744,101,000 
770,908,000 
698,242,000 
Loans, variable rate of interest
1,876,405,000 
1,603,595,000 
1,560,161,000 
Loans, non-accrual
34,472,000 
40,850,000 
58,693,000 
Total
2,654,978,000 
2,415,353,000 
2,317,096,000 
Loans receivable, other information [Abstract]
 
 
 
Percentage of loan portfolio secured by property in Texas (in hundredths)
33.00% 
 
 
Percentage of loan portfolio secured by property in Oklahoma (in hundredths)
17.00% 
 
 
Residential Mortgage [Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Loans, fixed rate of interest
1,753,186,000 
1,783,615,000 
1,768,607,000 
Loans, variable rate of interest
210,689,000 
226,092,000 
230,644,000 
Loans, non-accrual
44,340,000 
42,319,000 
40,534,000 
Total
2,008,215,000 
2,052,026,000 
2,039,785,000 
Permanent mortage [Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Total
1,020,928,000 
1,062,744,000 
1,095,871,000 
Loans receivable, other information [Abstract]
 
 
 
Minimum FICO required for jumbo loan approval
720 
 
 
Maximum debt-to-income ratio on jumbo loans (in hundredths)
38.00% 
 
 
Minimum loan-to-value ratio on jumbo loans (in hundredths)
60.00% 
 
 
Maximum loan-to-value ratio on jumbo loans (in hundredths)
100.00% 
 
 
Minimum period for fixed rate on variable rate jumbo loans (in years)
3 years 
 
 
Maximum period for fixed rate on variable rate jumbo loans (in years)
10 years 
 
 
Permanent mortgages guaranteed by US govenment agencies [Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Total
188,087,000 
181,598,000 
156,887,000 
Loans receivable, other information [Abstract]
 
 
 
Amount of loans guaranteed by US government and previously sold into GNMA mortgage pools
188,000,000 
 
 
Home equity {Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Total
799,200,000 
807,684,000 
787,027,000 
Loans receivable, other information [Abstract]
 
 
 
Percentage of home equity portfolio comprised of first lien loans
69.00% 
 
 
Percentage of home equity portfolio comprised of junior lien loans
31.00% 
 
 
Percentage of junior lien home equity loans that are amortizing term loans
73.00% 
 
 
Percentage of junior lien home equity loans that are revolving lines of credit
27.00% 
 
 
Home equity loans, description
Home equity loans generally require a minimum FICO score of 700 and a maximum DTI of 40%. 
 
 
Home equity loans, maximum
400,000 
 
 
Home equity loans, revolving period
5 years 
 
 
Home equity loans, amortization period following revolving period
15 years 
 
 
Home equity loans, discretionary additional revolving period
5 years 
 
 
Consumer [Member]
 
 
 
Loan receivables disclosure [Abstract]
 
 
 
Loans, fixed rate of interest
115,185,000 
135,494,000 
142,737,000 
Loans, variable rate of interest
280,054,000 
244,950,000 
231,007,000 
Loans, non-accrual
765,000 
1,220,000 
2,037,000 
Total
$ 396,004,000 
$ 381,664,000 
$ 375,781,000 
Loans and Allowances for Credit Losses Part 2 (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Allowance for loan losses [Roll Forward]
 
 
 
 
 
Beginning balance
$ 188,318,000 
$ 205,965,000 
$ 185,396,000 
$ 215,507,000 
 
Provision for loan losses
370,000 
(499,000)
780,000 
(7,689,000)
 
Loans charged off
(3,522,000)
(8,552,000)
(6,370,000)
(17,461,000)
 
Recoveries
5,524,000 
6,210,000 
10,884,000 
12,767,000 
 
Ending balance
190,690,000 
203,124,000 
190,690,000 
203,124,000 
 
Allowance for off-balance sheet credit losses [Roll Forward]
 
 
 
 
 
Beginning balance
1,678,000 
1,105,000 
2,088,000 
1,915,000 
 
Provision for off-balance sheet credit losses
(370,000)
499,000 
(780,000)
(311,000)
 
Ending balance
1,308,000 
1,604,000 
1,308,000 
1,604,000 
 
Total provision for credit losses
0 
0 
0 
(8,000,000)
 
Recorded investment [Abstract]
 
 
 
 
 
Collectively measured for impairment, recorded investment
13,330,178,000 
12,318,732,000 
13,330,178,000 
12,318,732,000 
12,691,892,000 
Individually measured for impairment, recorded investment
96,680,000 
122,050,000 
96,680,000 
122,050,000 
100,372,000 
Total
13,426,858,000 
12,440,782,000 
13,426,858,000 
12,440,782,000 
12,792,264,000 
Related allowance [Abstract]
 
 
 
 
 
Collectively measured for impairment, related allowance
160,308,000 
158,631,000 
160,308,000 
158,631,000 
156,229,000 
Individually measured for impairment, related allowance
3,433,000 
2,044,000 
3,433,000 
2,044,000 
954,000 
Total measured for impairment, related allowance
190,690,000 
203,124,000 
190,690,000 
203,124,000 
 
Commercial [Member]
 
 
 
 
 
Allowance for loan losses [Roll Forward]
 
 
 
 
 
Beginning balance
85,246,000 
66,419,000 
79,180,000 
65,280,000 
 
Provision for loan losses
1,393,000 
223,000 
5,618,000 
(1,733,000)
 
Loans charged off
(29,000)
(4,538,000)
(173,000)
(4,836,000)
 
Recoveries
1,196,000 
1,940,000 
3,181,000 
5,333,000 
 
Ending balance
87,806,000 
64,044,000 
87,806,000 
64,044,000 
 
Allowance for off-balance sheet credit losses [Roll Forward]
 
 
 
 
 
Beginning balance
576,000 
405,000 
119,000 
475,000 
 
Provision for off-balance sheet credit losses
(231,000)
(3,000)
226,000 
(73,000)
 
Ending balance
345,000 
402,000 
345,000 
402,000 
 
Total provision for credit losses
1,162,000 
220,000 
5,844,000 
(1,806,000)
 
Recorded investment [Abstract]
 
 
 
 
 
Collectively measured for impairment, recorded investment
8,350,558,000 
7,687,251,000 
8,350,558,000 
7,687,251,000 
7,926,461,000 
Individually measured for impairment, recorded investment
17,103,000 
20,869,000 
17,103,000 
20,869,000 
16,760,000 
Total
8,367,661,000 
7,708,120,000 
8,367,661,000 
7,708,120,000 
7,943,221,000 
Related allowance [Abstract]
 
 
 
 
 
Collectively measured for impairment, related allowance
84,639,000 
63,492,000 
84,639,000 
63,492,000 
78,607,000 
Individually measured for impairment, related allowance
3,167,000 
552,000 
3,167,000 
552,000 
573,000 
Total measured for impairment, related allowance
87,806,000 
64,044,000 
87,806,000 
64,044,000 
 
Commercial Real Estate [Member]
 
 
 
 
 
Allowance for loan losses [Roll Forward]
 
 
 
 
 
Beginning balance
41,589,000 
48,528,000 
41,573,000 
54,884,000 
 
Provision for loan losses
(2,958,000)
(1,118,000)
(4,549,000)
(3,798,000)
 
Loans charged off
0 
(450,000)
(220,000)
(5,250,000)
 
Recoveries
2,621,000 
2,727,000 
4,448,000 
3,851,000 
 
Ending balance
41,252,000 
49,687,000 
41,252,000 
49,687,000 
 
Allowance for off-balance sheet credit losses [Roll Forward]
 
 
 
 
 
Beginning balance
1,040,000 
618,000 
1,876,000 
1,353,000 
 
Provision for off-balance sheet credit losses
(138,000)
560,000 
(974,000)
(175,000)
 
Ending balance
902,000 
1,178,000 
902,000 
1,178,000 
 
Total provision for credit losses
(3,096,000)
(558,000)
(5,523,000)
(3,973,000)
 
Recorded investment [Abstract]
 
 
 
 
 
Collectively measured for impairment, recorded investment
2,620,506,000 
2,258,403,000 
2,620,506,000 
2,258,403,000 
2,374,503,000 
Individually measured for impairment, recorded investment
34,472,000 
58,693,000 
34,472,000 
58,693,000 
40,850,000 
Total
2,654,978,000 
2,317,096,000 
2,654,978,000 
2,317,096,000 
2,415,353,000 
Related allowance [Abstract]
 
 
 
 
 
Collectively measured for impairment, related allowance
41,069,000 
48,493,000 
41,069,000 
48,493,000 
41,440,000 
Individually measured for impairment, related allowance
183,000 
1,194,000 
183,000 
1,194,000 
133,000 
Total measured for impairment, related allowance
41,252,000 
49,687,000 
41,252,000 
49,687,000 
 
Residential Mortgage [Member]
 
 
 
 
 
Allowance for loan losses [Roll Forward]
 
 
 
 
 
Beginning balance
28,307,000 
40,222,000 
29,465,000 
41,703,000 
 
Provision for loan losses
467,000 
597,000 
(49,000)
323,000 
 
Loans charged off
(1,842,000)
(2,057,000)
(2,838,000)
(3,836,000)
 
Recoveries
722,000 
444,000 
1,076,000 
1,016,000 
 
Ending balance
27,654,000 
39,206,000 
27,654,000 
39,206,000 
 
Allowance for off-balance sheet credit losses [Roll Forward]
 
 
 
 
 
Beginning balance
62,000 
72,000 
90,000 
78,000 
 
Provision for off-balance sheet credit losses
(19,000)
(66,000)
(47,000)
(72,000)
 
Ending balance
43,000 
6,000 
43,000 
6,000 
 
Total provision for credit losses
448,000 
531,000 
(96,000)
251,000 
 
Recorded investment [Abstract]
 
 
 
 
 
Collectively measured for impairment, recorded investment
1,963,875,000 
1,999,334,000 
1,963,875,000 
1,999,334,000 
2,010,483,000 
Individually measured for impairment, recorded investment
44,340,000 
40,451,000 
44,340,000 
40,451,000 
41,543,000 
Total
2,008,215,000 
2,039,785,000 
2,008,215,000 
2,039,785,000 
2,052,026,000 
Related allowance [Abstract]
 
 
 
 
 
Collectively measured for impairment, related allowance
27,571,000 
39,028,000 
27,571,000 
39,028,000 
29,217,000 
Individually measured for impairment, related allowance
83,000 
178,000 
83,000 
178,000 
248,000 
Total measured for impairment, related allowance
27,654,000 
39,206,000 
27,654,000 
39,206,000 
 
Consumer [Member]
 
 
 
 
 
Allowance for loan losses [Roll Forward]
 
 
 
 
 
Beginning balance
6,211,000 
7,984,000 
6,965,000 
9,453,000 
 
Provision for loan losses
1,484,000 
162,000 
1,024,000 
(743,000)
 
Loans charged off
(1,651,000)
(1,507,000)
(3,139,000)
(3,539,000)
 
Recoveries
985,000 
1,099,000 
2,179,000 
2,567,000 
 
Ending balance
7,029,000 
7,738,000 
7,029,000 
7,738,000 
 
Allowance for off-balance sheet credit losses [Roll Forward]
 
 
 
 
 
Beginning balance
0 
10,000 
3,000 
9,000 
 
Provision for off-balance sheet credit losses
18,000 
8,000 
15,000 
9,000 
 
Ending balance
18,000 
18,000 
18,000 
18,000 
 
Total provision for credit losses
1,502,000 
170,000 
1,039,000 
(734,000)
 
Recorded investment [Abstract]
 
 
 
 
 
Collectively measured for impairment, recorded investment
395,239,000 
373,744,000 
395,239,000 
373,744,000 
380,445,000 
Individually measured for impairment, recorded investment
765,000 
2,037,000 
765,000 
2,037,000 
1,219,000 
Total
396,004,000 
375,781,000 
396,004,000 
375,781,000 
381,664,000 
Related allowance [Abstract]
 
 
 
 
 
Collectively measured for impairment, related allowance
7,029,000 
7,618,000 
7,029,000 
7,618,000 
6,965,000 
Individually measured for impairment, related allowance
0 
120,000 
0 
120,000 
0 
Total measured for impairment, related allowance
7,029,000 
7,738,000 
7,029,000 
7,738,000 
 
Specific Allowance [Member]
 
 
 
 
 
Allowance for loan losses [Roll Forward]
 
 
 
 
 
Beginning balance
 
 
 
 
157,183,000 
Ending balance
163,741,000 
160,675,000 
163,741,000 
160,675,000 
157,183,000 
Recorded investment [Abstract]
 
 
 
 
 
Collectively measured for impairment, recorded investment
13,330,178,000 
12,318,732,000 
13,330,178,000 
12,318,732,000 
12,691,892,000 
Individually measured for impairment, recorded investment
96,680,000 
122,050,000 
96,680,000 
122,050,000 
100,372,000 
Total
13,426,858,000 
12,440,782,000 
13,426,858,000 
12,440,782,000 
12,792,264,000 
Related allowance [Abstract]
 
 
 
 
 
Collectively measured for impairment, related allowance
160,308,000 
158,631,000 
160,308,000 
158,631,000 
156,229,000 
Individually measured for impairment, related allowance
3,433,000 
2,044,000 
3,433,000 
2,044,000 
954,000 
Total measured for impairment, related allowance
163,741,000 
160,675,000 
163,741,000 
160,675,000 
157,183,000 
Nonspecific Allowance [Member]
 
 
 
 
 
Allowance for loan losses [Roll Forward]
 
 
 
 
 
Beginning balance
26,965,000 
42,812,000 
28,213,000 
44,187,000 
 
Provision for loan losses
(16,000)
(363,000)
(1,264,000)
(1,738,000)
 
Loans charged off
0 
0 
0 
0 
 
Recoveries
0 
0 
0 
0 
 
Ending balance
26,949,000 
42,449,000 
26,949,000 
42,449,000 
 
Allowance for off-balance sheet credit losses [Roll Forward]
 
 
 
 
 
Beginning balance
0 
0 
0 
0 
 
Provision for off-balance sheet credit losses
0 
0 
0 
0 
 
Ending balance
0 
0 
0 
0 
 
Total provision for credit losses
(16,000)
(363,000)
(1,264,000)
(1,738,000)
 
Recorded investment [Abstract]
 
 
 
 
 
Collectively measured for impairment, recorded investment
0 
0 
0 
0 
0 
Individually measured for impairment, recorded investment
0 
0 
0 
0 
0 
Total
0 
0 
0 
0 
0 
Related allowance [Abstract]
 
 
 
 
 
Collectively measured for impairment, related allowance
0 
0 
0 
0 
0 
Individually measured for impairment, related allowance
0 
0 
0 
0 
0 
Total measured for impairment, related allowance
$ 26,949,000 
$ 42,449,000 
$ 26,949,000 
$ 42,449,000 
 
Loans and Allowances for Credit Losses Part 3 (Details) (USD $)
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
$ 11,494,951,000 
 
$ 10,789,740,000 
$ 10,480,793,000 
 
 
Non-Graded, Recorded Investment
1,931,907,000 
 
2,002,524,000 
1,959,989,000 
 
 
Total
13,426,858,000 
 
12,792,264,000 
12,440,782,000 
 
 
Related Allowance [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Allowance
135,294,000 
 
127,961,000 
118,586,000 
 
 
Non-Graded, Allowance
28,447,000 
 
29,222,000 
42,089,000 
 
 
Allowance For Financing Receivable Total
190,690,000 
188,318,000 
185,396,000 
203,124,000 
205,965,000 
215,507,000 
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
11,334,373,000 
 
10,650,784,000 
10,303,771,000 
 
 
Non-Graded, Recorded Investment
1,890,830,000 
 
1,966,324,000 
1,924,100,000 
 
 
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
104,975,000 
 
74,007,000 
90,778,000 
 
 
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
55,603,000 
 
64,949,000 
86,244,000 
 
 
Non-Graded, Recorded Investment
41,077,000 
 
36,200,000 
35,889,000 
 
 
Commercial [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
8,341,114,000 
 
7,888,219,000 
7,689,954,000 
 
 
Non-Graded, Recorded Investment
26,547,000 
 
55,002,000 
18,166,000 
 
 
Total
8,367,661,000 
 
7,943,221,000 
7,708,120,000 
 
 
Related Allowance [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Allowance
86,893,000 
 
78,250,000 
62,830,000 
 
 
Non-Graded, Allowance
913,000 
 
930,000 
1,214,000 
 
 
Allowance For Financing Receivable Total
87,806,000 
 
79,180,000 
64,044,000 
 
 
Commercial [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
8,258,262,000 
 
7,841,108,000 
7,624,152,000 
 
 
Non-Graded, Recorded Investment
26,485,000 
 
54,929,000 
18,105,000 
 
 
Commercial [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
65,811,000 
 
30,424,000 
44,994,000 
 
 
Commercial [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
17,041,000 
 
16,687,000 
20,808,000 
 
 
Non-Graded, Recorded Investment
62,000 
 
73,000 
61,000 
 
 
Energy [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
2,419,788,000 
 
2,351,760,000 
2,384,746,000 
 
 
Energy [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
2,395,942,000 
 
2,347,519,000 
2,378,187,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Energy [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
22,227,000 
 
2,381,000 
4,282,000 
 
 
Energy [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
1,619,000 
 
1,860,000 
2,277,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Services [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
2,377,065,000 
 
2,282,210,000 
2,204,253,000 
 
 
Services [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
2,352,450,000 
 
2,265,984,000 
2,170,695,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Services [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
20,946,000 
 
11,304,000 
26,110,000 
 
 
Services [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
3,669,000 
 
4,922,000 
7,448,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Wholesale/retail [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
1,318,151,000 
 
1,201,364,000 
1,175,543,000 
 
 
Wholesale/retail [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
1,307,426,000 
 
1,191,791,000 
1,167,215,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Wholesale/retail [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
4,840,000 
 
2,604,000 
1,628,000 
 
 
Wholesale/retail [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
5,885,000 
 
6,969,000 
6,700,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Manufacturing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
452,866,000 
 
391,751,000 
386,133,000 
 
 
Manufacturing [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
442,493,000 
 
381,794,000 
381,729,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Manufacturing [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
6,866,000 
 
9,365,000 
3,528,000 
 
 
Manufacturing [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
3,507,000 
 
592,000 
876,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Healthcare [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
1,394,156,000 
 
1,274,246,000 
1,118,810,000 
 
 
Healthcare [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
1,385,395,000 
 
1,272,626,000 
1,116,089,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Healthcare [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
7,339,000 
 
34,000 
51,000 
 
 
Healthcare [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
1,422,000 
 
1,586,000 
2,670,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Other commercial and industrial [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
405,635,000 
 
441,890,000 
438,635,000 
 
 
Other commercial and industrial [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
374,556,000 
 
381,394,000 
410,237,000 
 
 
Non-Graded, Recorded Investment
26,485,000 
 
54,929,000 
18,105,000 
 
 
Other commercial and industrial [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
3,593,000 
 
4,736,000 
9,395,000 
 
 
Other commercial and industrial [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
939,000 
 
758,000 
837,000 
 
 
Non-Graded, Recorded Investment
62,000 
 
73,000 
61,000 
 
 
Commercial Real Estate [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
2,654,978,000 
 
2,415,353,000 
2,317,096,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Total
2,654,978,000 
 
2,415,353,000 
2,317,096,000 
 
 
Related Allowance [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Allowance
41,252,000 
 
41,573,000 
49,687,000 
 
 
Non-Graded, Allowance
0 
 
0 
0 
 
 
Allowance For Financing Receivable Total
41,252,000 
 
41,573,000 
49,687,000 
 
 
Commercial Real Estate [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
2,583,554,000 
 
2,334,998,000 
2,218,338,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Commercial Real Estate [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
36,952,000 
 
39,505,000 
40,065,000 
 
 
Commercial Real Estate [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
34,472,000 
 
40,850,000 
58,693,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Residential construction and land development [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
184,779,000 
 
206,258,000 
225,654,000 
 
 
Residential construction and land development [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
152,228,000 
 
173,488,000 
184,216,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Residential construction and land development [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
17,405,000 
 
15,393,000 
20,303,000 
 
 
Residential construction and land development [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
15,146,000 
 
17,377,000 
21,135,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Retail [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
642,110,000 
 
586,047,000 
553,412,000 
 
 
Retail [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
636,332,000 
 
579,506,000 
540,872,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Retail [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
1,579,000 
 
1,684,000 
4,134,000 
 
 
Retail [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
4,199,000 
 
4,857,000 
8,406,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Office [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
394,217,000 
 
411,499,000 
459,558,000 
 
 
Office [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
389,487,000 
 
403,951,000 
450,790,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Office [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
1,139,000 
 
1,157,000 
940,000 
 
 
Office [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
3,591,000 
 
6,391,000 
7,828,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Multifamily [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
677,403,000 
 
576,502,000 
500,452,000 
 
 
Multifamily [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
663,349,000 
 
562,800,000 
491,864,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Multifamily [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
14,054,000 
 
13,695,000 
2,141,000 
 
 
Multifamily [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
7,000 
6,447,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Industrial [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
342,080,000 
 
243,877,000 
253,990,000 
 
 
Industrial [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
341,449,000 
 
243,625,000 
253,732,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Industrial [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
0 
258,000 
 
 
Industrial [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
631,000 
 
252,000 
0 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Other commercial real estate [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
414,389,000 
 
391,170,000 
324,030,000 
 
 
Other commercial real estate [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
400,709,000 
 
371,628,000 
296,864,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Other commercial real estate [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
2,775,000 
 
7,576,000 
12,289,000 
 
 
Other commercial real estate [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
10,905,000 
 
11,966,000 
14,877,000 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Residential Mortgage [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
203,097,000 
 
220,635,000 
230,359,000 
 
 
Non-Graded, Recorded Investment
1,805,118,000 
 
1,831,391,000 
1,809,426,000 
 
 
Total
2,008,215,000 
 
2,052,026,000 
2,039,785,000 
 
 
Related Allowance [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Allowance
4,169,000 
 
5,481,000 
3,753,000 
 
 
Non-Graded, Allowance
23,485,000 
 
23,984,000 
35,453,000 
 
 
Allowance For Financing Receivable Total
27,654,000 
 
29,465,000 
39,206,000 
 
 
Residential Mortgage [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
197,005,000 
 
210,142,000 
219,222,000 
 
 
Non-Graded, Recorded Investment
1,764,683,000 
 
1,796,281,000 
1,775,240,000 
 
 
Residential Mortgage [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
2,187,000 
 
3,283,000 
4,789,000 
 
 
Residential Mortgage [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
3,905,000 
 
7,210,000 
6,348,000 
 
 
Non-Graded, Recorded Investment
40,435,000 
 
35,110,000 
34,186,000 
 
 
Permanent mortage [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
1,020,928,000 
 
1,062,744,000 
1,095,871,000 
 
 
Permanent mortage [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
197,005,000 
 
210,142,000 
219,222,000 
 
 
Non-Graded, Recorded Investment
788,784,000 
 
815,040,000 
839,113,000 
 
 
Permanent mortage [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
2,187,000 
 
3,283,000 
4,789,000 
 
 
Permanent mortage [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
3,905,000 
 
7,210,000 
6,348,000 
 
 
Non-Graded, Recorded Investment
29,047,000 
 
27,069,000 
26,399,000 
 
 
Permanent mortgages guaranteed by US govenment agencies [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
188,087,000 
 
181,598,000 
156,887,000 
 
 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
0 
0 
 
 
Non-Graded, Recorded Investment
186,140,000 
 
180,821,000 
156,804,000 
 
 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
0 
0 
 
 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
0 
0 
 
 
Non-Graded, Recorded Investment
1,947,000 
 
777,000 
83,000 
 
 
Home equity {Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Total
799,200,000 
 
807,684,000 
787,027,000 
 
 
Home equity {Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
0 
0 
 
 
Non-Graded, Recorded Investment
789,759,000 
 
800,420,000 
779,323,000 
 
 
Home equity {Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
0 
0 
 
 
Home equity {Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
0 
0 
 
 
Non-Graded, Recorded Investment
9,441,000 
 
7,264,000 
7,704,000 
 
 
Consumer [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
295,762,000 
 
265,533,000 
243,384,000 
 
 
Non-Graded, Recorded Investment
100,242,000 
 
116,131,000 
132,397,000 
 
 
Total
396,004,000 
 
381,664,000 
375,781,000 
 
 
Related Allowance [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Allowance
2,980,000 
 
2,657,000 
2,316,000 
 
 
Non-Graded, Allowance
4,049,000 
 
4,308,000 
5,422,000 
 
 
Allowance For Financing Receivable Total
7,029,000 
 
6,965,000 
7,738,000 
 
 
Consumer [Member] |
Performing [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
295,552,000 
 
264,536,000 
242,059,000 
 
 
Non-Graded, Recorded Investment
99,662,000 
 
115,114,000 
130,755,000 
 
 
Consumer [Member] |
Potential Problem [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
25,000 
 
795,000 
930,000 
 
 
Consumer [Member] |
Nonaccrual [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
185,000 
 
202,000 
395,000 
 
 
Non-Graded, Recorded Investment
580,000 
 
1,017,000 
1,642,000 
 
 
Specific Allowance [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
11,494,951,000 
 
10,789,740,000 
10,480,793,000 
 
 
Non-Graded, Recorded Investment
1,931,907,000 
 
2,002,524,000 
1,959,989,000 
 
 
Total
13,426,858,000 
 
12,792,264,000 
12,440,782,000 
 
 
Related Allowance [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Allowance
135,294,000 
 
127,961,000 
118,586,000 
 
 
Non-Graded, Allowance
28,447,000 
 
29,222,000 
42,089,000 
 
 
Allowance For Financing Receivable Total
163,741,000 
 
157,183,000 
160,675,000 
 
 
Nonspecific Allowance [Member]
 
 
 
 
 
 
Recorded Investment [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Recorded Investment
0 
 
0 
0 
 
 
Non-Graded, Recorded Investment
0 
 
0 
0 
 
 
Total
0 
 
0 
0 
 
 
Related Allowance [Abstract]
 
 
 
 
 
 
Internally Risk Graded, Allowance
0 
 
0 
0 
 
 
Non-Graded, Allowance
0 
 
0 
0 
 
 
Allowance For Financing Receivable Total
$ 26,949,000 
$ 26,965,000 
$ 28,213,000 
$ 42,449,000 
$ 42,812,000 
$ 44,187,000 
Loans and Allowances for Credit Losses Part 4 (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
$ 329,665 
$ 321,435 
$ 329,665 
$ 321,435 
$ 319,534 
Impaired loans, recorded investment, total
282,820 
278,937 
282,820 
278,937 
281,970 
Impaired loans, recorded investment with no related allowance
278,076 
273,210 
278,076 
273,210 
279,827 
Impaired loans, recorded investment with related allowance
4,744 
5,727 
4,744 
5,727 
2,143 
Impaired loans, related allowance
3,433 
2,044 
3,433 
2,044 
954 
Impaired loans, average recorded investment
286,438 
285,277 
284,799 
290,244 
 
Impaired loans, interest income recognized
2,347 
1,913 
4,828 
4,011 
 
Commercial [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
34,012 
35,747 
34,012 
35,747 
30,826 
Impaired loans, recorded investment, total
17,103 
20,869 
17,103 
20,869 
16,760 
Impaired loans, recorded investment with no related allowance
13,319 
19,612 
13,319 
19,612 
15,549 
Impaired loans, recorded investment with related allowance
3,784 
1,257 
3,784 
1,257 
1,211 
Impaired loans, related allowance
3,167 
552 
3,167 
552 
573 
Impaired loans, average recorded investment
18,075 
20,366 
16,931 
22,670 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Energy [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
1,646 
2,277 
1,646 
2,277 
1,860 
Impaired loans, recorded investment, total
1,619 
2,277 
1,619 
2,277 
1,860 
Impaired loans, recorded investment with no related allowance
1,619 
2,277 
1,619 
2,277 
1,860 
Impaired loans, recorded investment with related allowance
0 
0 
0 
0 
0 
Impaired loans, related allowance
0 
0 
0 
0 
0 
Impaired loans, average recorded investment
1,689 
2,327 
1,739 
2,369 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Services [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
6,530 
9,631 
6,530 
9,631 
6,486 
Impaired loans, recorded investment, total
3,669 
7,448 
3,669 
7,448 
4,922 
Impaired loans, recorded investment with no related allowance
2,917 
6,283 
2,917 
6,283 
3,791 
Impaired loans, recorded investment with related allowance
752 
1,165 
752 
1,165 
1,131 
Impaired loans, related allowance
158 
493 
158 
493 
516 
Impaired loans, average recorded investment
4,125 
8,461 
4,295 
9,769 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Wholesale/retail [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
10,966 
10,916 
10,966 
10,916 
11,009 
Impaired loans, recorded investment, total
5,885 
6,700 
5,885 
6,700 
6,969 
Impaired loans, recorded investment with no related allowance
5,853 
6,656 
5,853 
6,656 
6,937 
Impaired loans, recorded investment with related allowance
32 
44 
32 
44 
32 
Impaired loans, related allowance
9 
11 
9 
11 
9 
Impaired loans, average recorded investment
6,369 
4,470 
6,427 
4,889 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Healthcare [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
2,438 
3,357 
2,438 
3,357 
2,193 
Impaired loans, recorded investment, total
1,422 
2,670 
1,422 
2,670 
1,586 
Impaired loans, recorded investment with no related allowance
1,422 
2,622 
1,422 
2,622 
1,538 
Impaired loans, recorded investment with related allowance
0 
48 
0 
48 
48 
Impaired loans, related allowance
0 
48 
0 
48 
48 
Impaired loans, average recorded investment
1,433 
2,816 
1,504 
2,918 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Manufacturing [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
3,764 
1,168 
3,764 
1,168 
746 
Impaired loans, recorded investment, total
3,507 
876 
3,507 
876 
592 
Impaired loans, recorded investment with no related allowance
507 
876 
507 
876 
592 
Impaired loans, recorded investment with related allowance
3,000 
0 
3,000 
0 
0 
Impaired loans, related allowance
3,000 
0 
3,000 
0 
0 
Impaired loans, average recorded investment
3,536 
1,362 
2,050 
1,442 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Other commercial and industrial [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
8,668 
8,398 
8,668 
8,398 
8,532 
Impaired loans, recorded investment, total
1,001 
898 
1,001 
898 
831 
Impaired loans, recorded investment with no related allowance
1,001 
898 
1,001 
898 
831 
Impaired loans, recorded investment with related allowance
0 
0 
0 
0 
0 
Impaired loans, related allowance
0 
0 
0 
0 
0 
Impaired loans, average recorded investment
923 
930 
916 
1,283 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Commercial Real Estate [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
49,566 
67,467 
49,566 
67,467 
49,637 
Impaired loans, recorded investment, total
34,472 
58,693 
34,472 
58,693 
40,850 
Impaired loans, recorded investment with no related allowance
33,647 
54,595 
33,647 
54,595 
40,328 
Impaired loans, recorded investment with related allowance
825 
4,098 
825 
4,098 
522 
Impaired loans, related allowance
183 
1,194 
183 
1,194 
133 
Impaired loans, average recorded investment
36,888 
61,936 
37,661 
59,661 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Residential construction and land development [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
19,441 
24,752 
19,441 
24,752 
20,804 
Impaired loans, recorded investment, total
15,146 
21,135 
15,146 
21,135 
17,377 
Impaired loans, recorded investment with no related allowance
14,504 
20,841 
14,504 
20,841 
17,050 
Impaired loans, recorded investment with related allowance
642 
294 
642 
294 
327 
Impaired loans, related allowance
162 
102 
162 
102 
107 
Impaired loans, average recorded investment
15,846 
22,299 
16,261 
23,633 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Retail [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
5,679 
9,827 
5,679 
9,827 
6,133 
Impaired loans, recorded investment, total
4,199 
8,406 
4,199 
8,406 
4,857 
Impaired loans, recorded investment with no related allowance
4,199 
8,406 
4,199 
8,406 
4,857 
Impaired loans, recorded investment with related allowance
0 
0 
0 
0 
0 
Impaired loans, related allowance
0 
0 
0 
0 
0 
Impaired loans, average recorded investment
4,413 
8,664 
4,529 
8,262 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Office [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
6,039 
9,245 
6,039 
9,245 
7,848 
Impaired loans, recorded investment, total
3,591 
7,828 
3,591 
7,828 
6,391 
Impaired loans, recorded investment with no related allowance
3,588 
7,820 
3,588 
7,820 
6,383 
Impaired loans, recorded investment with related allowance
3 
8 
3 
8 
8 
Impaired loans, related allowance
3 
8 
3 
8 
8 
Impaired loans, average recorded investment
4,946 
10,340 
4,991 
7,329 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Multifamily [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
0 
6,447 
0 
6,447 
7 
Impaired loans, recorded investment, total
0 
6,447 
0 
6,447 
7 
Impaired loans, recorded investment with no related allowance
0 
4,415 
0 
4,415 
7 
Impaired loans, recorded investment with related allowance
0 
2,032 
0 
2,032 
0 
Impaired loans, related allowance
0 
196 
0 
196 
0 
Impaired loans, average recorded investment
0 
5,474 
3 
4,577 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Industrial [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
790 
0 
790 
0 
252 
Impaired loans, recorded investment, total
631 
0 
631 
0 
252 
Impaired loans, recorded investment with no related allowance
631 
0 
631 
0 
252 
Impaired loans, recorded investment with related allowance
0 
0 
0 
0 
0 
Impaired loans, related allowance
0 
0 
0 
0 
0 
Impaired loans, average recorded investment
758 
1,099 
441 
1,984 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Other commercial real estate [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
17,617 
17,196 
17,617 
17,196 
14,593 
Impaired loans, recorded investment, total
10,905 
14,877 
10,905 
14,877 
11,966 
Impaired loans, recorded investment with no related allowance
10,725 
13,113 
10,725 
13,113 
11,779 
Impaired loans, recorded investment with related allowance
180 
1,764 
180 
1,764 
187 
Impaired loans, related allowance
18 
888 
18 
888 
18 
Impaired loans, average recorded investment
10,925 
14,060 
11,436 
13,876 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Residential Mortgage [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
245,306 
216,118 
245,306 
216,118 
237,843 
Impaired loans, recorded investment, total
230,480 
197,338 
230,480 
197,338 
223,141 
Impaired loans, recorded investment with no related allowance
230,345 
197,086 
230,345 
197,086 
222,731 
Impaired loans, recorded investment with related allowance
135 
252 
135 
252 
410 
Impaired loans, related allowance
83 
178 
83 
178 
248 
Impaired loans, average recorded investment
230,605 
200,870 
229,215 
205,540 
 
Impaired loans, interest income recognized
2,347 
1,913 
4,828 
4,011 
 
Permanent mortage [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
41,646 
42,983 
41,646 
42,983 
41,870 
Impaired loans, recorded investment, total
32,952 
32,747 
32,952 
32,747 
34,279 
Impaired loans, recorded investment with no related allowance
32,817 
32,495 
32,817 
32,495 
33,869 
Impaired loans, recorded investment with related allowance
135 
252 
135 
252 
410 
Impaired loans, related allowance
83 
178 
83 
178 
248 
Impaired loans, average recorded investment
34,647 
35,450 
33,615 
36,304 
 
Impaired loans, interest income recognized
293 
285 
638 
603 
 
Permanent mortgages guaranteed by US govenment agencies [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
194,178 1
165,431 2
194,178 1
165,431 2
188,436 3
Impaired loans, recorded investment, total
188,087 1
156,887 2
188,087 1
156,887 2
181,598 3
Impaired loans, recorded investment with no related allowance
188,087 1
156,887 2
188,087 1
156,887 2
181,598 3
Impaired loans, recorded investment with related allowance
0 1
0 2
0 1
0 2
0 3
Impaired loans, related allowance
0 1
0 2
0 1
0 2
0 3
Impaired loans, average recorded investment
187,505 1
158,038 2
187,247 1
162,256 2
 
Impaired loans, interest income recognized
2,054 1
1,628 2
4,190 1
3,408 2
 
Home equity {Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
9,482 
7,704 
9,482 
7,704 
7,537 
Impaired loans, recorded investment, total
9,441 
7,704 
9,441 
7,704 
7,264 
Impaired loans, recorded investment with no related allowance
9,441 
7,704 
9,441 
7,704 
7,264 
Impaired loans, recorded investment with related allowance
0 
0 
0 
0 
0 
Impaired loans, related allowance
0 
0 
0 
0 
0 
Impaired loans, average recorded investment
8,453 
7,382 
8,353 
6,980 
 
Impaired loans, interest income recognized
0 
0 
0 
0 
 
Consumer [Member]
 
 
 
 
 
Impaired loans [Abstract]
 
 
 
 
 
Impaired loans, unpaid principal balance
781 
2,103 
781 
2,103 
1,228 
Impaired loans, recorded investment, total
765 
2,037 
765 
2,037 
1,219 
Impaired loans, recorded investment with no related allowance
765 
1,917 
765 
1,917 
1,219 
Impaired loans, recorded investment with related allowance
0 
120 
0 
120 
0 
Impaired loans, related allowance
0 
120 
0 
120 
0 
Impaired loans, average recorded investment
870 
2,105 
992 
2,373 
 
Impaired loans, interest income recognized
$ 0 
$ 0 
$ 0 
$ 0 
 
Loans and Allowances for Credit Losses Part 5 (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
$ 109,855 
$ 109,050 
$ 109,855 
$ 109,050 
$ 106,281 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
46,904 
38,768 
46,904 
38,768 
42,343 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
62,951 
70,282 
62,951 
70,282 
63,938 
Troubled Debt Restructuring, Specific allowance
3,402 
395 
3,402 
395 
441 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
160 
208 
174 
1,176 
 
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
52,037 
60,317 
52,037 
60,317 
51,959 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
29,635 
26,170 
29,635 
26,170 
28,959 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
22,402 
34,147 
22,402 
34,147 
23,000 
Troubled Debt Restructuring, Specific allowance
3,402 
395 
3,402 
395 
441 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
160 
208 
174 
1,176 
 
Commercial [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
9,576 
4,993 
9,576 
4,993 
3,632 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
4,763 
1,867 
4,763 
1,867 
1,114 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
4,813 
3,126 
4,813 
3,126 
2,518 
Troubled Debt Restructuring, Specific allowance
3,157 
240 
3,157 
240 
246 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Energy [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Services [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
1,762 
3,065 
1,762 
3,065 
2,235 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
742 
710 
742 
710 
852 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
1,020 
2,355 
1,020 
2,355 
1,383 
Troubled Debt Restructuring, Specific allowance
148 
228 
148 
228 
237 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Wholesale/retail [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
3,719 
1,107 
3,719 
1,107 
235 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
3,598 
968 
3,598 
968 
89 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
121 
139 
121 
139 
146 
Troubled Debt Restructuring, Specific allowance
9 
12 
9 
12 
9 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Manufacturing [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
3,369 
0 
3,369 
0 
391 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
369 
0 
369 
0 
0 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
3,000 
0 
3,000 
0 
391 
Troubled Debt Restructuring, Specific allowance
3,000 
0 
3,000 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Healthcare [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Other commercial and industrial [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
726 
821 
726 
821 
771 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
54 
189 
54 
189 
173 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
672 
632 
672 
632 
598 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Commercial Real Estate [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
18,738 
32,639 
18,738 
32,639 
24,577 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
8,724 
8,798 
8,724 
8,798 
11,342 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
10,014 
23,841 
10,014 
23,841 
13,235 
Troubled Debt Restructuring, Specific allowance
162 
23 
162 
23 
107 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
131 
0 
758 
 
Residential construction and land development [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
9,482 
11,734 
9,482 
11,734 
10,148 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
1,622 
1,934 
1,622 
1,934 
1,444 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
7,860 
9,800 
7,860 
9,800 
8,704 
Troubled Debt Restructuring, Specific allowance
162 
23 
162 
23 
107 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
54 
0 
54 
 
Retail [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
3,727 
5,681 
3,727 
5,681 
4,359 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
2,535 
1,604 
2,535 
1,604 
3,141 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
1,192 
4,077 
1,192 
4,077 
1,218 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
627 
 
Office [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
2,378 
5,488 
2,378 
5,488 
5,059 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
1,416 
1,313 
1,416 
1,313 
3,872 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
962 
4,175 
962 
4,175 
1,187 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
77 
0 
77 
 
Multifamily [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
0 
990 
0 
990 
0 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
0 
208 
0 
208 
0 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
0 
782 
0 
782 
0 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Industrial [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
0 
0 
0 
0 
0 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Other commercial real estate [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
3,151 
8,746 
3,151 
8,746 
5,011 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
3,151 
3,739 
3,151 
3,739 
2,885 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
0 
5,007 
0 
5,007 
2,126 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Residential Mortgage [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
23,113 
21,143 
23,113 
21,143 
22,742 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
15,708 
14,181 
15,708 
14,181 
15,745 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
7,405 
6,962 
7,405 
6,962 
6,997 
Troubled Debt Restructuring, Specific allowance
83 
54 
83 
54 
88 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
159 
77 
173 
417 
 
Permanent mortage [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
17,182 
17,639 
17,182 
17,639 
18,697 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
11,605 
10,917 
11,605 
10,917 
12,214 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
5,577 
6,722 
5,577 
6,722 
6,483 
Troubled Debt Restructuring, Specific allowance
83 
54 
83 
54 
88 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
107 
8 
108 
348 
 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
855 
 
855 
 
 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
180 
 
180 
 
 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
675 
 
675 
 
 
Troubled Debt Restructuring, Specific allowance
0 
 
0 
 
 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
 
0 
 
 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Accruing [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
57,818 
48,733 
57,818 
48,733 
54,322 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
17,269 
12,598 
17,269 
12,598 
13,384 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
40,549 
36,135 
40,549 
36,135 
40,938 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
0 
0 
0 
0 
 
Home equity {Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
5,076 
3,504 
5,076 
3,504 
4,045 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
3,923 
3,264 
3,923 
3,264 
3,531 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
1,153 
240 
1,153 
240 
514 
Troubled Debt Restructuring, Specific allowance
0 
0 
0 
0 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
52 
69 
65 
69 
 
Consumer [Member] |
Nonaccrual [Member]
 
 
 
 
 
Financing Receivable, Modifications [Line Items]
 
 
 
 
 
Troubled Debt Restructuring, Recorded Investment
610 
1,542 
610 
1,542 
1,008 
Troubled Debt Restructuring, Performing in Accordance With Modified Terms
440 
1,324 
440 
1,324 
758 
Troubled Debt Restructuring, Not Performing in Accordance With Modified Terms
170 
218 
170 
218 
250 
Troubled Debt Restructuring, Specific allowance
0 
78 
0 
78 
0 
Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs
$ 1 
$ 0 
$ 1 
$ 1 
 
Loans and Allowances for Credit Losses Part 6 (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
$ 18,381 
$ 22,457 
$ 27,801 
$ 32,099 
Troubled Debt Restructurings, Recorded Balance With Payment Default
29,116 
41,927 
30,568 
46,872 
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
10,954 
8,896 
16,073 
17,643 
Troubled Debt Restructurings, Recorded Balance With Payment Default
20,492 
22,784 
20,912 
26,767 
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
4,260 
3,087 
5,773 
8,694 
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
6,694 
5,809 
10,300 
8,949 
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
7,427 
13,561 
11,728 
14,456 
Troubled Debt Restructurings, Recorded Balance With Payment Default
8,624 
19,143 
9,656 
20,105 
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
234 
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,760 
9,854 
7,312 
9,914 
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,667 
3,707 
4,416 
4,308 
Commercial [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,542 
1,140 
6,568 
1,320 
Troubled Debt Restructurings, Recorded Balance With Payment Default
4,020 
2,007 
4,389 
2,040 
Commercial [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Commercial [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Commercial [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Commercial [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,542 
1,140 
6,568 
1,320 
Troubled Debt Restructurings, Recorded Balance With Payment Default
4,020 
2,007 
4,389 
2,040 
Commercial [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
147 
Commercial [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,542 
1,140 
6,542 
1,173 
Commercial [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
26 
0 
Energy [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Energy [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Energy [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Energy [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Energy [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Energy [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Energy [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Energy [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Services [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
1,140 
0 
1,173 
Troubled Debt Restructurings, Recorded Balance With Payment Default
1,020 
2,007 
1,020 
2,007 
Services [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Services [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Services [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Services [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
1,140 
0 
1,173 
Troubled Debt Restructurings, Recorded Balance With Payment Default
1,020 
2,007 
1,020 
2,007 
Services [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Services [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
1,140 
0 
1,173 
Services [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Wholesale/retail [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,542 
0 
3,542 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Wholesale/retail [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Wholesale/retail [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Wholesale/retail [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Wholesale/retail [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,542 
0 
3,542 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Wholesale/retail [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Wholesale/retail [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,542 
0 
3,542 
0 
Wholesale/retail [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Manufacturing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
3,000 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
3,000 
0 
3,369 
0 
Manufacturing [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Manufacturing [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Manufacturing [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Manufacturing [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
3,000 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
3,000 
0 
3,369 
0 
Manufacturing [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Manufacturing [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
3,000 
0 
Manufacturing [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Healthcare [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Healthcare [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Healthcare [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Healthcare [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Healthcare [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Healthcare [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Healthcare [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Healthcare [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Other commercial and industrial [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
26 
147 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
33 
Other commercial and industrial [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Other commercial and industrial [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Other commercial and industrial [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Other commercial and industrial [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
26 
147 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
33 
Other commercial and industrial [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
147 
Other commercial and industrial [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Other commercial and industrial [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
26 
0 
Commercial Real Estate [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
307 
8,714 
729 
8,714 
Troubled Debt Restructurings, Recorded Balance With Payment Default
881 
14,862 
1,080 
15,603 
Commercial Real Estate [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Commercial Real Estate [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Commercial Real Estate [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Commercial Real Estate [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
307 
8,714 
729 
8,714 
Troubled Debt Restructurings, Recorded Balance With Payment Default
881 
14,862 
1,080 
15,603 
Commercial Real Estate [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Commercial Real Estate [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
8,714 
422 
8,714 
Commercial Real Estate [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
307 
0 
307 
0 
Residential construction and land development [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
307 
0 
729 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
422 
6,889 
422 
6,889 
Residential construction and land development [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Residential construction and land development [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Residential construction and land development [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Residential construction and land development [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
307 
0 
729 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
422 
6,889 
422 
6,889 
Residential construction and land development [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Residential construction and land development [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
422 
0 
Residential construction and land development [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
307 
0 
307 
0 
Retail [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
612 
0 
612 
Troubled Debt Restructurings, Recorded Balance With Payment Default
459 
612 
459 
612 
Retail [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Retail [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Retail [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Retail [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
612 
0 
612 
Troubled Debt Restructurings, Recorded Balance With Payment Default
459 
612 
459 
612 
Retail [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Retail [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
612 
0 
612 
Retail [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Office [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
3,181 
0 
3,181 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
3,181 
199 
3,181 
Office [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Office [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Office [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Office [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
3,181 
0 
3,181 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
3,181 
199 
3,181 
Office [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Office [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
3,181 
0 
3,181 
Office [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Multifamily [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
990 
0 
990 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
782 
0 
990 
Multifamily [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Multifamily [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Multifamily [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Multifamily [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
990 
0 
990 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
782 
0 
990 
Multifamily [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Multifamily [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
990 
0 
990 
Multifamily [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Industrial [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Industrial [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Industrial [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Industrial [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Industrial [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Industrial [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Industrial [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Industrial [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Other commercial real estate [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
3,931 
0 
3,931 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
3,398 
0 
3,931 
Other commercial real estate [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Other commercial real estate [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Other commercial real estate [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Other commercial real estate [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
3,931 
0 
3,931 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
3,398 
0 
3,931 
Other commercial real estate [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Other commercial real estate [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
3,931 
0 
3,931 
Other commercial real estate [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Residential Mortgage [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
14,499 
11,826 
20,458 
21,155 
Troubled Debt Restructurings, Recorded Balance With Payment Default
24,201 
24,973 
25,085 
29,107 
Residential Mortgage [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
10,954 
8,896 
16,073 
17,643 
Troubled Debt Restructurings, Recorded Balance With Payment Default
20,492 
22,784 
20,912 
26,767 
Residential Mortgage [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
4,260 
3,087 
5,773 
8,694 
Residential Mortgage [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
6,694 
5,809 
10,300 
8,949 
Residential Mortgage [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,545 
2,930 
4,385 
3,512 
Troubled Debt Restructurings, Recorded Balance With Payment Default
3,709 
2,189 
4,173 
2,340 
Residential Mortgage [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Residential Mortgage [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
218 
0 
348 
27 
Residential Mortgage [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
3,327 
2,930 
4,037 
3,485 
Permanent mortage [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
2,039 
1,132 
2,410 
1,404 
Troubled Debt Restructurings, Recorded Balance With Payment Default
2,324 
1,949 
2,769 
1,969 
Permanent mortage [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Permanent mortage [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Permanent mortage [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Permanent mortage [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
2,039 
1,132 
2,410 
1,404 
Troubled Debt Restructurings, Recorded Balance With Payment Default
2,324 
1,949 
2,769 
1,969 
Permanent mortage [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Permanent mortage [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
218 
0 
348 
27 
Permanent mortage [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
1,821 
1,132 
2,062 
1,377 
Permanent mortgages guaranteed by US govenment agencies [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
11,184 
8,896 
16,484 
17,643 
Troubled Debt Restructurings, Recorded Balance With Payment Default
20,875 
22,784 
21,295 
26,767 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
10,954 
8,896 
16,073 
17,643 
Troubled Debt Restructurings, Recorded Balance With Payment Default
20,492 
22,784 
20,912 
26,767 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
4,260 
3,087 
5,773 
8,694 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
6,694 
5,809 
10,300 
8,949 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
230 
0 
411 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
383 
0 
383 
0 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Permanent mortgages guaranteed by US govenment agencies [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
230 
0 
411 
0 
Home equity {Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
1,276 
1,798 
1,564 
2,108 
Troubled Debt Restructurings, Recorded Balance With Payment Default
1,002 
240 
1,021 
371 
Home equity {Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Home equity {Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Home equity {Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Home equity {Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
1,276 
1,798 
1,564 
2,108 
Troubled Debt Restructurings, Recorded Balance With Payment Default
1,002 
240 
1,021 
371 
Home equity {Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Home equity {Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Home equity {Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
1,276 
1,798 
1,564 
2,108 
Consumer [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
33 
777 
46 
910 
Troubled Debt Restructurings, Recorded Balance With Payment Default
14 
85 
14 
122 
Consumer [Member] |
Accruing [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Troubled Debt Restructurings, Recorded Balance With Payment Default
0 
0 
0 
0 
Consumer [Member] |
Accruing [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Consumer [Member] |
Accruing [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Consumer [Member] |
Nonaccrual [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
33 
777 
46 
910 
Troubled Debt Restructurings, Recorded Balance With Payment Default
14 
85 
14 
122 
Consumer [Member] |
Nonaccrual [Member] |
Interest Rate Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
87 
Consumer [Member] |
Nonaccrual [Member] |
Payment Stream Modification [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
0 
0 
0 
0 
Consumer [Member] |
Nonaccrual [Member] |
Combination & Other Modifications [Member]
 
 
 
 
Accounts, Notes, Loans and Financing Receivable [Line Items]
 
 
 
 
Troubled Debt Restructurings, Recorded Balance Modified During The Period
$ 33 
$ 777 
$ 46 
$ 823 
Loans and Allowances for Credit Losses Part 7 (Details) (USD $)
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
$ 13,155,156,000 
$ 12,509,986,000 
$ 12,160,578,000 
Past due 30 to 89 days
35,901,000 
38,099,000 
38,805,000 
Past due 90 days or more
139,121,000 
143,030,000 
119,266,000 
Nonaccrual
96,680,000 
101,149,000 
122,133,000 
Total
13,426,858,000 
12,792,264,000 
12,440,782,000 
Commercial [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
8,347,097,000 
7,922,000,000 
7,681,836,000 
Past due 30 to 89 days
3,436,000 
4,112,000 
2,974,000 
Past due 90 days or more
25,000 
349,000 
2,441,000 
Nonaccrual
17,103,000 
16,760,000 
20,869,000 
Total
8,367,661,000 
7,943,221,000 
7,708,120,000 
Energy [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
2,416,139,000 
2,347,267,000 
2,382,377,000 
Past due 30 to 89 days
2,005,000 
2,483,000 
92,000 
Past due 90 days or more
25,000 
150,000 
0 
Nonaccrual
1,619,000 
1,860,000 
2,277,000 
Total
2,419,788,000 
2,351,760,000 
2,384,746,000 
Services [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
2,373,081,000 
2,276,036,000 
2,192,771,000 
Past due 30 to 89 days
315,000 
1,210,000 
1,769,000 
Past due 90 days or more
0 
42,000 
2,265,000 
Nonaccrual
3,669,000 
4,922,000 
7,448,000 
Total
2,377,065,000 
2,282,210,000 
2,204,253,000 
Wholesale/retail [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
1,312,255,000 
1,193,905,000 
1,168,686,000 
Past due 30 to 89 days
11,000 
338,000 
0 
Past due 90 days or more
0 
152,000 
157,000 
Nonaccrual
5,885,000 
6,969,000 
6,700,000 
Total
1,318,151,000 
1,201,364,000 
1,175,543,000 
Manufacturing [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
448,656,000 
391,159,000 
385,257,000 
Past due 30 to 89 days
703,000 
0 
0 
Past due 90 days or more
0 
0 
0 
Nonaccrual
3,507,000 
592,000 
876,000 
Total
452,866,000 
391,751,000 
386,133,000 
Healthcare [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
1,392,718,000 
1,272,660,000 
1,115,187,000 
Past due 30 to 89 days
16,000 
0 
953,000 
Past due 90 days or more
0 
0 
0 
Nonaccrual
1,422,000 
1,586,000 
2,670,000 
Total
1,394,156,000 
1,274,246,000 
1,118,810,000 
Other commercial and industrial [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
404,248,000 
440,973,000 
437,558,000 
Past due 30 to 89 days
386,000 
81,000 
160,000 
Past due 90 days or more
0 
5,000 
19,000 
Nonaccrual
1,001,000 
831,000 
898,000 
Total
405,635,000 
441,890,000 
438,635,000 
Commercial Real Estate [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
2,620,198,000 
2,370,684,000 
2,253,864,000 
Past due 30 to 89 days
308,000 
2,788,000 
4,539,000 
Past due 90 days or more
0 
1,031,000 
0 
Nonaccrual
34,472,000 
40,850,000 
58,693,000 
Total
2,654,978,000 
2,415,353,000 
2,317,096,000 
Residential construction and land development [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
169,627,000 
188,434,000 
204,519,000 
Past due 30 to 89 days
6,000 
428,000 
0 
Past due 90 days or more
0 
19,000 
0 
Nonaccrual
15,146,000 
17,377,000 
21,135,000 
Total
184,779,000 
206,258,000 
225,654,000 
Retail [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
637,609,000 
580,926,000 
542,946,000 
Past due 30 to 89 days
302,000 
264,000 
2,060,000 
Past due 90 days or more
0 
0 
0 
Nonaccrual
4,199,000 
4,857,000 
8,406,000 
Total
642,110,000 
586,047,000 
553,412,000 
Office [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
390,626,000 
404,505,000 
451,730,000 
Past due 30 to 89 days
0 
603,000 
0 
Past due 90 days or more
0 
0 
0 
Nonaccrual
3,591,000 
6,391,000 
7,828,000 
Total
394,217,000 
411,499,000 
459,558,000 
Multifamily [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
677,403,000 
576,495,000 
492,306,000 
Past due 30 to 89 days
0 
0 
1,699,000 
Past due 90 days or more
0 
0 
0 
Nonaccrual
0 
7,000 
6,447,000 
Total
677,403,000 
576,502,000 
500,452,000 
Industrial [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
341,449,000 
243,625,000 
253,990,000 
Past due 30 to 89 days
0 
0 
0 
Past due 90 days or more
0 
0 
0 
Nonaccrual
631,000 
252,000 
0 
Total
342,080,000 
243,877,000 
253,990,000 
Other commercial real estate [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
403,484,000 
376,699,000 
308,373,000 
Past due 30 to 89 days
0 
1,493,000 
780,000 
Past due 90 days or more
0 
1,012,000 
0 
Nonaccrual
10,905,000 
11,966,000 
14,877,000 
Total
414,389,000 
391,170,000 
324,030,000 
Residential Mortgage [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
1,793,615,000 
1,837,885,000 
1,853,635,000 
Past due 30 to 89 days
31,165,000 
30,172,000 
28,810,000 
Past due 90 days or more
139,095,000 
141,649,000 
116,806,000 
Nonaccrual
44,340,000 
42,320,000 
40,534,000 
Total
2,008,215,000 
2,052,026,000 
2,039,785,000 
Permanent mortage [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
977,897,000 
1,018,670,000 
1,054,435,000 
Past due 30 to 89 days
10,079,000 
9,795,000 
8,689,000 
Past due 90 days or more
0 
0 
0 
Nonaccrual
32,952,000 
34,279,000 
32,747,000 
Total
1,020,928,000 
1,062,744,000 
1,095,871,000 
Permanent mortgages guaranteed by US govenment agencies [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
27,855,000 
21,916,000 
22,328,000 
Past due 30 to 89 days
19,231,000 
17,290,000 
17,670,000 
Past due 90 days or more
139,054,000 
141,615,000 
116,806,000 
Nonaccrual
1,947,000 
777,000 
83,000 
Total
188,087,000 
181,598,000 
156,887,000 
Home equity {Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
787,863,000 
797,299,000 
776,872,000 
Past due 30 to 89 days
1,855,000 
3,087,000 
2,451,000 
Past due 90 days or more
41,000 
34,000 
0 
Nonaccrual
9,441,000 
7,264,000 
7,704,000 
Total
799,200,000 
807,684,000 
787,027,000 
Consumer [Member]
 
 
 
Financing receivable, recorded investment, aging [Abstract]
 
 
 
Current
394,246,000 
379,417,000 
371,243,000 
Past due 30 to 89 days
992,000 
1,027,000 
2,482,000 
Past due 90 days or more
1,000 
1,000 
19,000 
Nonaccrual
765,000 
1,219,000 
2,037,000 
Total
$ 396,004,000 
$ 381,664,000 
$ 375,781,000 
Acquisitions Acquisitions (Details) (USD $)
6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Jun. 30, 2014
GTRUST Financial Corporation [Member]
Jun. 30, 2014
MBM Advisors [Member]
Jun. 30, 2014
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
 
 
 
 
 
 
Assets Under Management at time of acquisition
 
 
 
$ 631,000,000 
$ 1,300,000,000 
 
Consideration Transferred
 
 
 
 
 
27,000,000 
Cash Paid for Acquisitions
 
 
 
 
 
23,000,000 
Contingent Consideration Recognized in Acquisitions
 
 
 
 
 
4,000,000 
Identifiable Intangible Assets Recognized Through Acquisitions
 
 
 
 
 
14,000,000 
Goodwill Recognized Through Acquisitions
$ 377,780,000 
$ 359,759,000 
$ 359,759,000 
 
 
$ 18,000,000 
Mortgage Banking Activities, Components of Loans Held For Sale (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Schedule of Residential Mortgage Loans Held For Sale [Line Items]
 
 
 
 
 
Components of Residential Mortgages Held For Sale Gross, Fair Value
$ 325,875 
$ 200,546 
$ 301,057 
$ 325,875 
$ 301,057 
Mortgage Banking Revenue [Abstract]
 
 
 
 
 
Production revenue
17,727 
 
26,356 
29,179 
56,266 
Servicing revenue
11,603 
 
10,240 
22,995 
20,306 
Mortgage banking revenue
29,330 
 
36,596 
52,174 
76,572 
Residential Mortgage Loans Held For Sale [Member]
 
 
 
 
 
Schedule of Residential Mortgage Loans Held For Sale [Line Items]
 
 
 
 
 
Residential Mortgage Loans Held For Sale Unpaid Principal Balance/Notional
310,341 
192,266 
284,454 
310,341 
284,454 
Components of Residential Mortgages Held For Sale Gross, Fair Value
319,508 
193,584 
280,962 
319,508 
280,962 
Number of days for past due loans (in days)
90 days 
90 days 
90 days 
 
 
Residential mortgage loans held for sale, nonperforming
0 
0 
0 
0 
0 
Credit losses recognized on residential mortgage loans held for sale
 
 
 
0 
0 
Mortgage Banking Revenue [Abstract]
 
 
 
 
 
Production revenue
17,764 
 
17,763 
29,732 
47,998 
Residential Mortgage Loan Commitments [Member]
 
 
 
 
 
Schedule of Residential Mortgage Loans Held For Sale [Line Items]
 
 
 
 
 
Residential Mortgage, Derivatives, Notional
546,864 
258,873 
547,508 
546,864 
547,508 
Components of Residential Mortgages Held For Sale Gross, Fair Value
13,616 
2,656 
(1,709)
13,616 
(1,709)
Minimum Number of Days Outstanding For Residential Mortgage Commitments
60 days 
60 days 
60 days 
 
 
Maximum Number of Days Outstanding For Residential Mortgage Commitments
90 days 
90 days 
90 days 
 
 
Mortgage Banking Revenue [Abstract]
 
 
 
 
 
Production revenue
7,614 
 
(15,052)
11,001 
(14,442)
Forward Sales Contracts [Member]
 
 
 
 
 
Schedule of Residential Mortgage Loans Held For Sale [Line Items]
 
 
 
 
 
Residential Mortgage, Derivatives, Notional
828,739 
435,867 
740,752 
828,739 
740,752 
Components of Residential Mortgages Held For Sale Gross, Fair Value
(7,249)
4,306 
21,804 
(7,249)
21,804 
Minimum Number of Days for Delivery of Forward Sales Contracts
60 days 
60 days 
60 days 
 
 
Maximum Number of Days for Delivery of Forward Sales Contracts
90 days 
90 days 
90 days 
 
 
Mortgage Banking Revenue [Abstract]
 
 
 
 
 
Production revenue
$ (7,651)
 
$ 23,645 
$ (11,554)
$ 22,710 
Mortgage Banking Activities, Mortgage Servicing Rights (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Summary of Mortgage Servicing Rights [Abstract]
 
 
 
 
 
Number of residential mortgage loans serviced for others
110,404 
106,137 
101,498 
110,404 
101,498 
Outstanding principal balance of residential mortgage loans serviced for others
$ 14,626,291,000 
$ 13,718,942,000 
$ 12,741,651,000 
$ 14,626,291,000 
$ 12,741,651,000 
Weighted average interest rate (in hundredths)
4.36% 
4.40% 
4.47% 
4.36% 
4.47% 
Remaining term (in months)
293 months 
292 months 
291 months 
 
 
Servicing Asset at Fair Value, Amount [Roll Forward]
 
 
 
 
 
Beginning balance
153,774,000 
 
109,840,000 
153,333,000 
100,812,000 
Additions, net
13,172,000 
 
14,499,000 
21,816,000 
25,932,000 
Change in fair value due to loan runoff
(4,762,000)
 
(5,765,000)
(8,504,000)
(10,828,000)
Change in fair value due to market changes
(6,444,000)
 
14,315,000 
(10,905,000)
16,973,000 
Ending balance
155,740,000 
153,333,000 
132,889,000 
155,740,000 
132,889,000 
Servicing Assets at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]
 
 
 
 
 
Discount rate - risk-free rate plus a market premium (in hundredths)
10.20% 
10.21% 
10.25% 
 
 
Loan servicing costs - annually per loan based upon loan type, performing, minimum (in dollars per loan)
60 
60 
58 
 
 
Loan servicing costs - annually per loan based upon loan type, performing, maximum (in dollars per loan)
105 
105 
105 
 
 
Loan servicing costs - annually per loan based upon loan type, delinquent, minimum (in dollars per loan)
150 
150 
135 
 
 
Loan servicing costs - annually per loan based upon loan type, delinquent, maximum (in dollars per loan)
500 
500 
500 
 
 
Loan servicing costs - annually per loan based upon loan type, foreclosure, minimum (in dollars per loan)
1,000 
1,000 
875 
 
 
Loan servicing costs - annually per loan based upon loan type, foreclosure, maximum (in dollars per loan)
4,250 
4,250 
4,250 
 
 
Escrow earnings rate - indexed to rates paid on deposit accounts with comparable average life (in hundredths)
1.69% 
1.80% 
1.56% 
 
 
Purchased [Member]
 
 
 
 
 
Servicing Asset at Fair Value, Amount [Roll Forward]
 
 
 
 
 
Beginning balance
14,790,000 
 
13,203,000 
15,935,000 
12,976,000 
Additions, net
0 
 
0 
0 
0 
Change in fair value due to loan runoff
(599,000)
 
(940,000)
(1,114,000)
(1,811,000)
Change in fair value due to market changes
(1,109,000)
 
3,319,000 
(1,739,000)
4,417,000 
Ending balance
13,082,000 
 
15,582,000 
13,082,000 
15,582,000 
Originated [Member]
 
 
 
 
 
Servicing Asset at Fair Value, Amount [Roll Forward]
 
 
 
 
 
Beginning balance
138,984,000 
 
96,637,000 
137,398,000 
87,836,000 
Additions, net
13,172,000 
 
14,499,000 
21,816,000 
25,932,000 
Change in fair value due to loan runoff
(4,163,000)
 
(4,825,000)
(7,390,000)
(9,017,000)
Change in fair value due to market changes
(5,335,000)
 
10,996,000 
(9,166,000)
12,556,000 
Ending balance
$ 142,658,000 
 
$ 117,307,000 
$ 142,658,000 
$ 117,307,000 
Mortgage Banking Activities, Loan Servicing Portfolio (Details) (USD $)
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Stratification of Mortgage Loan Servicing Portfolio [Line Items]
 
 
 
 
 
 
Fair value
$ 155,740,000 
$ 153,774,000 
$ 153,333,000 
$ 132,889,000 
$ 109,840,000 
$ 100,812,000 
Outstanding principal of loans serviced for others
14,626,291,000 
 
 
 
 
 
Weighted average prepayment rate (in hundredths)
10.03% 
 
 
 
 
 
Increase in Fair Value Of Mortgage Servicing Rights Due To 50 Basis Point Increase In Mortgage Interest Rates
4,000,000 
 
 
 
 
 
Decrease in Fair Value Of Mortgage Servicing Rights Due To 50 Basis Point Decrease In Mortgage Interest Rates
4,500,000 
 
 
 
 
 
Interest Rate Range Less than 4.00% [Member]
 
 
 
 
 
 
Stratification of Mortgage Loan Servicing Portfolio [Line Items]
 
 
 
 
 
 
Fair value
61,918,000 
 
 
 
 
 
Outstanding principal of loans serviced for others
5,682,055,000 
 
 
 
 
 
Weighted average prepayment rate (in hundredths)
7.33% 
 
 
 
 
 
Interest Rate Range 4.00% to 4.99% [Member]
 
 
 
 
 
 
Stratification of Mortgage Loan Servicing Portfolio [Line Items]
 
 
 
 
 
 
Fair value
65,639,000 
 
 
 
 
 
Outstanding principal of loans serviced for others
5,687,478,000 
 
 
 
 
 
Weighted average prepayment rate (in hundredths)
8.26% 
 
 
 
 
 
Interest Rate Range 5.00% to 5.99% [Member]
 
 
 
 
 
 
Stratification of Mortgage Loan Servicing Portfolio [Line Items]
 
 
 
 
 
 
Fair value
22,702,000 
 
 
 
 
 
Outstanding principal of loans serviced for others
2,187,993,000 
 
 
 
 
 
Weighted average prepayment rate (in hundredths)
12.60% 
 
 
 
 
 
Interest Rate Range Greater than 5.99% [Member]
 
 
 
 
 
 
Stratification of Mortgage Loan Servicing Portfolio [Line Items]
 
 
 
 
 
 
Fair value
5,481,000 
 
 
 
 
 
Outstanding principal of loans serviced for others
$ 1,068,765,000 
 
 
 
 
 
Weighted average prepayment rate (in hundredths)
28.53% 
 
 
 
 
 
Mortgage Banking Activities Mortgage Banking Activities, Loans Serviced for Others (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Financing Receivable, Recorded Investment, Aging [Abstract]
 
Loans Serviced For Others, Current
$ 14,306,572 
Loans Serviced For Others, 30 To 59 Days Past Due
194,205 
Loans Serviced For Others, 60 To 89 Days Past Due
54,417 
Loans Serviced For Others, Greater Than 90 Days or More Past Due
71,097 
Loans Serviced For Others
14,626,291 
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
 
Financing Receivable, Recorded Investment, Aging [Abstract]
 
Loans Serviced For Others, Current
4,681,165 
Loans Serviced For Others, 30 To 59 Days Past Due
36,913 
Loans Serviced For Others, 60 To 89 Days Past Due
9,828 
Loans Serviced For Others, Greater Than 90 Days or More Past Due
31,543 
Loans Serviced For Others
4,759,449 
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
 
Financing Receivable, Recorded Investment, Aging [Abstract]
 
Loans Serviced For Others, Current
4,628,707 
Loans Serviced For Others, 30 To 59 Days Past Due
25,380 
Loans Serviced For Others, 60 To 89 Days Past Due
7,206 
Loans Serviced For Others, Greater Than 90 Days or More Past Due
20,149 
Loans Serviced For Others
4,681,442 
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
 
Financing Receivable, Recorded Investment, Aging [Abstract]
 
Loans Serviced For Others, Current
4,538,079 
Loans Serviced For Others, 30 To 59 Days Past Due
125,530 
Loans Serviced For Others, 60 To 89 Days Past Due
35,461 
Loans Serviced For Others, Greater Than 90 Days or More Past Due
14,487 
Loans Serviced For Others
4,713,557 
Other Investor Loans [Member]
 
Financing Receivable, Recorded Investment, Aging [Abstract]
 
Loans Serviced For Others, Current
458,621 
Loans Serviced For Others, 30 To 59 Days Past Due
6,382 
Loans Serviced For Others, 60 To 89 Days Past Due
1,922 
Loans Serviced For Others, Greater Than 90 Days or More Past Due
4,918 
Loans Serviced For Others
$ 471,843 
Mortgage Banking Activities, Loans Sold With Recourse (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Residential Mortgage Loans Sold With Recourse [Abstract]
 
 
 
 
 
Carrying amount of residential mortgage loans sold and subject to recourse
$ 181,000,000 
 
$ 181,000,000 
 
$ 191,000,000 
Percentage of loans sold with recourse and either more than 90 days past due or in bankruptcy or foreclosure (in hundredths)
4.00% 
 
4.00% 
 
 
Principal balance of loans sold with recourse and either 90 days or more past due or in bankruptcy or foreclosure
6,600,000 
 
6,600,000 
 
 
Percentage of loans sold with recourse and 30 to 89 days past due (in hundredths)
5.00% 
 
5.00% 
 
 
Principal balance of loans sold with recourse and 30 to 89 days past due
10,000,000 
 
10,000,000 
 
 
Activity in the allowance for losses on loans sold with recourse [Roll forward]
 
 
 
 
 
Beginning balance
9,066,000 
11,420,000 
9,562,000 
13,158,000 
 
Provision for recourse losses
183,000 
416,000 
167,000 
(348,000)
 
Loans charged off, net
(559,000)
(916,000)
(1,039,000)
(1,890,000)
 
Ending balance
8,690,000 
10,920,000 
8,690,000 
10,920,000 
 
Residenital Mortgage Loans Subject to Repurchase Under Standard Representations and Warranties [Abstract]
 
 
 
 
 
Number of mortgages purchased under repurchase agreement with government sponsored entities.
9 
 
 
 
 
Purchase price of loans purchased under repurchase agreement with government sponsored entities
1,300,000 
 
 
 
 
Number of loans sold under standard representations and warranties indemnified
2 
 
 
 
 
Number of unresolved deficiency requests
188 
464 
188 
464 
 
Aggregate outstanding principal balance subject to unresolved deficiency requests
16,497,000 
55,517,000 
16,497,000 
55,517,000 
 
Unpaid principal balance of mortgage loans subject to indemnification by the Company
2,248,000 
1,774,000 
2,248,000 
1,774,000 
 
Activity in accrual for losses on mortgage loans sold under standard representation and warranties [Roll Forward]
 
 
 
 
 
Beginning balance
7,877,000 
5,877,000 
8,845,000 
5,291,000 
 
Provision for repurchase losses
(2,229,000)
453,000 
(3,071,000)
1,429,000 
 
Losses on repurchases and indemnifications, net
(75,000)
(149,000)
(201,000)
(539,000)
 
Ending balance
$ 5,573,000 
$ 6,181,000 
$ 5,573,000 
$ 6,181,000 
 
Employee Benefits (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Compensation And Retirment Disclosure [Abstract]
 
 
 
 
Periodic pension cost recognized in period
$ 149,000 
$ 500,000 
$ 297,000 
$ 1,000,000 
Pension contribution for current period
0 
0 
0 
0 
Pension Contributions Minimum Required
$ 0 
 
$ 0 
 
Commitments and Contingent Liabilities (Details) (USD $)
Jun. 30, 2014
Parent Company [Member] |
Visa Membership [Member]
 
Loss Contingencies [Line Items]
 
Number of Visa Class B Shares Owned by Entity (in shares)
251,837 
Cavanal Hill Funds [Member]
 
Loss Contingencies [Line Items]
 
Mutual Fund Investment in US Treasury Securities
$ 991,000,000 
Mutual Fund Investment in Cash Management
1,100,000,000 
Mutual Fund Investment in Tax-Free Money Market Funds
241,000,000 
The Net Asset Value of Units in Mutual Funds (per unit)
1.00 
BOKF Equity, LLC [Member]
 
Loss Contingencies [Line Items]
 
Number of Private Equity Funds of which the Entity is a General Partner
2 
Contingent Obligations For Additional Investments in Private Equity Funds
$ 6,000,000 
Commitments and Contingent Liabilities Variable Interest Entities (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Loans VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
$ 10,000 
$ 10,000 
$ 10,000 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
19,855 
27,319 
26,851 
Other Assets VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
48,083 
49,967 
50,568 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
101,572 
99,517 
95,698 
Other Liabilities VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
32,439 
37,457 
39,639 
Other Borrowings VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
10,964 
10,964 
10,964 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Non Controlling Interest VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
35,129 
34,924 
35,245 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Private Equity Funds Variable Interest Entities [Member] |
Loans VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Private Equity Funds Variable Interest Entities [Member] |
Other Assets VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
27,834 
27,341 
28,379 
Private Equity Funds Variable Interest Entities [Member] |
Other Liabilities VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Private Equity Funds Variable Interest Entities [Member] |
Other Borrowings VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Private Equity Funds Variable Interest Entities [Member] |
Non Controlling Interest VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
23,112 
23,036 
23,418 
Tax Credit Variable Interest Entities [Member] |
Loans VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
10,000 
10,000 
10,000 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
19,855 
27,319 
26,851 
Tax Credit Variable Interest Entities [Member] |
Other Assets VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
13,137 
13,448 
13,706 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
95,251 
90,260 
86,327 
Tax Credit Variable Interest Entities [Member] |
Other Liabilities VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
30,782 
35,776 
37,864 
Tax Credit Variable Interest Entities [Member] |
Other Borrowings VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
10,964 
10,964 
10,964 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Tax Credit Variable Interest Entities [Member] |
Non Controlling Interest VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
10,000 
9,869 
10,000 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Other Variable Interest Entities [Member] |
Loans VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Other Variable Interest Entities [Member] |
Other Assets VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
7,112 
9,178 
8,483 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
6,321 
9,257 
9,371 
Other Variable Interest Entities [Member] |
Other Liabilities VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
1,657 
1,681 
1,775 
Other Variable Interest Entities [Member] |
Other Borrowings VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
0 
0 
0 
Other Variable Interest Entities [Member] |
Non Controlling Interest VIE [Member]
 
 
 
Variable Interest Entity [Line Items]
 
 
 
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
2,017 
2,019 
1,827 
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net
$ 0 
$ 0 
$ 0 
Commitments and Contingent Liabilities Guarantor Obligations (Details) (Property Lease Guarantee [Member], USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Property Lease Guarantee [Member]
 
Guarantor Obligations [Line Items]
 
Total amount of guaranteed rents
$ 29 
Contingent Obligation For Guaranteed Rents
10 
Guaranteed Percentage To Be Received (in hundredths)
80.00% 
Maximum Amount To Be Received Under Rent Agreement With City Of Tulsa
$ 4.5 
Shareholders' Equity (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended 0 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Accumulated Net Unrealized Gain (Loss) on Available for Sale Securities [Member]
Jun. 30, 2013
Accumulated Net Unrealized Gain (Loss) on Available for Sale Securities [Member]
Jun. 30, 2014
Accumulated Unrealized Gain on Investment Securities Transferred from AFS [Member]
Jun. 30, 2013
Accumulated Unrealized Gain on Investment Securities Transferred from AFS [Member]
Jun. 30, 2014
Accumulated Unrealized Gain (Loss) on Employee Benefit Plans [Member]
Jun. 30, 2013
Accumulated Unrealized Gain (Loss) on Employee Benefit Plans [Member]
Jun. 30, 2014
Accumulated Loss on Effective Cash Flow Hedges [Member]
Jun. 30, 2013
Accumulated Loss on Effective Cash Flow Hedges [Member]
Jul. 29, 2014
Dividend Declared [Member]
Dividends Payable, Date Declared
 
 
 
 
 
 
 
 
 
 
 
 
Jul. 29, 2014 
Dividends declared (in dollars per share)
$ 0.40 
$ 0.38 
$ 0.80 
$ 0.76 
 
 
 
 
 
 
 
 
$ 0.40 
Dividends Payable, Date to be Paid
 
 
 
 
 
 
 
 
 
 
 
 
Aug. 29, 2014 
Dividends Payable, Date of Record
 
 
 
 
 
 
 
 
 
 
 
 
Aug. 15, 2014 
Schedule of Accumulated Other Income (Loss) [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance, Beginning of Period
 
 
$ (25,623)
$ 149,920 
$ (23,175)
$ 155,553 
$ 1,118 
$ 3,078 
$ (3,311)
$ (8,296)
$ (255)
$ (415)
 
Net change in unrealized gain (loss)
70,038 
(183,186)
124,651 
(204,545)
124,653 
(204,545)
0 
0 
(2)
0 
0 
0 
 
Reclassification adjustments included in earnings [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest revenue, Investment securities, Taxable securities
(333)
(873)
(736)
(2,021)
0 
0 
(736)
(2,021)
0 
0 
0 
0 
 
Interest expense, Subordinated debentures
71 
72 
154 
124 
0 
0 
0 
0 
0 
0 
154 
124 
 
Net impairment losses recognized in earnings
0 
552 
0 
799 
 
799 
 
0 
 
0 
 
0 
 
Gain on available for sale securities, net
(4)
(3,753)
(1,244)
(8,608)
(1,244)
(8,608)
0 
0 
0 
0 
0 
0 
 
Other comprehensive income (loss) before income taxes
69,772 
(187,188)
122,825 
(214,251)
123,409 
(212,354)
(736)
(2,021)
(2)
0 
154 
124 
 
Federal and state income taxes
(27,151)
72,819 
(47,786)1
83,345 1
(48,013)1
82,605 1
286 1
788 1
1 1
0 1
(60)1
(48)1
 
Other comprehensive income (loss), net of income taxes
42,621 
(114,369)
75,039 
(130,906)
75,396 
(129,749)
(450)
(1,233)
(1)
0 
94 
76 
 
Balance, End of Period
$ 49,416 
$ 19,014 
$ 49,416 
$ 19,014 
$ 52,221 
$ 25,804 
$ 668 
$ 1,845 
$ (3,312)
$ (8,296)
$ (161)
$ (339)
 
Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Numerator: [Abstract]
 
 
 
 
Net income attributable to BOK Financial Corporation shareholders
$ 75,895 
$ 79,931 
$ 152,485 
$ 167,895 
Less: Earnings allocated to participating securities
884 
854 
1,579 
1,825 
Numerator for basic earnings per share - income available to common shareholders
75,011 
79,077 
150,906 
166,070 
Effect of reallocating undistributed earnings of participating securities
1 
2 
2 
4 
Numerator for diluted earnings per share - income available to common shareholders
$ 75,012 
$ 79,079 
$ 150,908 
$ 166,074 
Denominator: [Abstract]
 
 
 
 
Weighted average shares outstanding (in shares)
69,162,724 
68,719,694 
69,031,961 
68,645,247 
Less: Participating securities included in weighted average shares (in shares)
802,779 
725,872 
713,272 
740,648 
Denominator for basic earnings per common share (in shares)
68,359,945 
67,993,822 
68,318,689 
67,904,599 
Dilutive effect of employee stock compensation plans (in shares)
151,433 
218,675 
157,113 
222,152 
Denominator for diluted earnings per common share (in shares)
68,511,378 
68,212,497 
68,475,802 
68,126,751 
Basic earnings per share (per share)
$ 1.10 
$ 1.16 
$ 2.21 
$ 2.45 
Diluted earnings per share (per share)
$ 1.10 
$ 1.16 
$ 2.20 
$ 2.44 
Excludes employee stock options with exercise prices greater than current market price.
0 
0 
0 
0 
Reportable Segments (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Segment Reporting Information [Line Items]
 
 
 
 
Net interest revenue from external sources
$ 166,097 
$ 168,892 
$ 328,739 
$ 340,344 
Net interest revenue (expense) from internal sources
0 
0 
0 
0 
Net interest revenue
166,097 
168,892 
328,739 
340,344 
Provision for credit losses
0 
0 
0 
(8,000)
Net interest revenue after provision for credit losses
166,097 
168,892 
328,739 
348,344 
Other operating revenue
162,569 
163,340 
299,575 
324,026 
Other operating expense
214,707 
210,921 
399,811 
414,904 
Net direct contribution
113,959 
121,311 
228,503 
257,466 
Corporate expense allocations
0 
0 
0 
0 
Net income before taxes
113,959 
121,311 
228,503 
257,466 
Federal and state income taxes
37,230 
41,423 
74,731 
88,519 
Net income
76,729 
79,888 
153,772 
168,947 
Net income (loss) attributable to non-controlling interest
834 
(43)
1,287 
1,052 
Net income attributable to BOK Financial Corporation shareholders
75,895 
79,931 
152,485 
167,895 
Average assets
27,486,821 
27,659,324 
27,363,480 
27,586,780 
Average invested capital
3,176,724 
3,027,654 
3,141,097 
3,012,828 
Performance measurements: [Abstract]
 
 
 
 
Return on average assets
1.11% 
1.16% 
1.12% 
1.23% 
Return on average invested capital
9.58% 
10.59% 
9.79% 
11.24% 
Efficiency ratio
63.62% 
63.11% 
61.74% 
62.07% 
Operating Segments [Member] |
Commercial [Member]
 
 
 
 
Segment Reporting Information [Line Items]
 
 
 
 
Net interest revenue from external sources
95,018 
90,551 
186,037 
181,433 
Net interest revenue (expense) from internal sources
(7,857)
(9,389)
(16,714)
(18,534)
Net interest revenue
87,161 
81,162 
169,323 
162,899 
Provision for credit losses
(2,812)
86 
(6,043)
1,107 
Net interest revenue after provision for credit losses
89,973 
81,076 
175,366 
161,792 
Other operating revenue
44,836 
43,330 
85,525 
84,781 
Other operating expense
50,922 
47,342 
100,310 
94,002 
Net direct contribution
83,887 
77,064 
160,581 
152,571 
Corporate expense allocations
18,367 
18,080 
35,653 
36,079 
Net income before taxes
65,520 
58,984 
124,928 
116,492 
Federal and state income taxes
25,487 
22,945 
48,597 
45,315 
Net income
40,033 
36,039 
76,331 
71,177 
Net income (loss) attributable to non-controlling interest
0 
0 
0 
0 
Net income attributable to BOK Financial Corporation shareholders
40,033 
36,039 
76,331 
71,177 
Average assets
11,243,678 
10,363,144 
11,100,687 
10,486,544 
Average invested capital
937,085 
899,087 
934,768 
895,748 
Performance measurements: [Abstract]
 
 
 
 
Return on average assets
1.43% 
1.39% 
1.39% 
1.37% 
Return on average invested capital
17.14% 
16.08% 
16.47% 
16.02% 
Efficiency ratio
38.52% 
37.96% 
39.07% 
37.89% 
Operating Segments [Member] |
Consumer [Member]
 
 
 
 
Segment Reporting Information [Line Items]
 
 
 
 
Net interest revenue from external sources
24,170 
24,830 
48,826 
48,925 
Net interest revenue (expense) from internal sources
4,666 
5,167 
8,860 
10,650 
Net interest revenue
28,836 
29,997 
57,686 
59,575 
Provision for credit losses
1,345 
1,402 
2,201 
2,332 
Net interest revenue after provision for credit losses
27,491 
28,595 
55,485 
57,243 
Other operating revenue
51,256 
62,309 
94,668 
122,108 
Other operating expense
49,087 
47,151 
90,932 
92,159 
Net direct contribution
29,660 
43,753 
59,221 
87,192 
Corporate expense allocations
16,911 
14,690 
32,750 
28,859 
Net income before taxes
12,749 
29,063 
26,471 
58,333 
Federal and state income taxes
4,959 
11,306 
10,297 
22,692 
Net income
7,790 
17,757 
16,174 
35,641 
Net income (loss) attributable to non-controlling interest
0 
0 
0 
0 
Net income attributable to BOK Financial Corporation shareholders
7,790 
17,757 
16,174 
35,641 
Average assets
5,668,256 
5,695,096 
5,642,181 
5,709,446 
Average invested capital
276,294 
297,674 
279,897 
297,375 
Performance measurements: [Abstract]
 
 
 
 
Return on average assets
0.55% 
1.25% 
0.58% 
1.26% 
Return on average invested capital
11.31% 
23.93% 
11.65% 
24.17% 
Efficiency ratio
55.11% 
49.26% 
53.74% 
47.91% 
Operating Segments [Member] |
Wealth Management [Member]
 
 
 
 
Segment Reporting Information [Line Items]
 
 
 
 
Net interest revenue from external sources
5,765 
6,512 
11,604 
12,991 
Net interest revenue (expense) from internal sources
4,719 
5,107 
9,403 
10,403 
Net interest revenue
10,484 
11,619 
21,007 
23,394 
Provision for credit losses
19 
931 
(26)
1,449 
Net interest revenue after provision for credit losses
10,465 
10,688 
21,033 
21,945 
Other operating revenue
65,527 
55,287 
119,787 
106,778 
Other operating expense
55,156 
51,440 
104,403 
98,562 
Net direct contribution
20,836 
14,535 
36,417 
30,161 
Corporate expense allocations
12,388 
13,019 
23,810 
25,559 
Net income before taxes
8,448 
1,516 
12,607 
4,602 
Federal and state income taxes
3,286 
590 
4,904 
1,790 
Net income
5,162 
926 
7,703 
2,812 
Net income (loss) attributable to non-controlling interest
0 
0 
0 
0 
Net income attributable to BOK Financial Corporation shareholders
5,162 
926 
7,703 
2,812 
Average assets
4,556,825 
4,544,061 
4,589,141 
4,615,169 
Average invested capital
214,936 
206,219 
208,909 
204,161 
Performance measurements: [Abstract]
 
 
 
 
Return on average assets
0.45% 
0.08% 
0.34% 
0.12% 
Return on average invested capital
9.63% 
1.80% 
7.44% 
2.78% 
Efficiency ratio
72.29% 
76.87% 
73.72% 
75.24% 
Corporate, Non-Segment [Member] |
Funds Management and Other [Member]
 
 
 
 
Segment Reporting Information [Line Items]
 
 
 
 
Net interest revenue from external sources
41,144 
46,999 
82,272 
96,995 
Net interest revenue (expense) from internal sources
(1,528)
(885)
(1,549)
(2,519)
Net interest revenue
39,616 
46,114 
80,723 
94,476 
Provision for credit losses
1,448 
(2,419)
3,868 
(12,888)
Net interest revenue after provision for credit losses
38,168 
48,533 
76,855 
107,364 
Other operating revenue
950 
2,414 
(405)
10,359 
Other operating expense
59,542 
64,988 
104,166 
130,181 
Net direct contribution
(20,424)
(14,041)
(27,716)
(12,458)
Corporate expense allocations
(47,666)
(45,789)
(92,213)
(90,497)
Net income before taxes
27,242 
31,748 
64,497 
78,039 
Federal and state income taxes
3,498 
6,582 
10,933 
18,722 
Net income
23,744 
25,166 
53,564 
59,317 
Net income (loss) attributable to non-controlling interest
834 
(43)
1,287 
1,052 
Net income attributable to BOK Financial Corporation shareholders
22,910 
25,209 
52,277 
58,265 
Average assets
6,018,062 
7,057,023 
6,031,471 
6,775,621 
Average invested capital
$ 1,748,409 
$ 1,624,674 
$ 1,717,523 
$ 1,615,544 
Fair Value Measurements, Fair Value Of Financial Instruments as Measured On a Recurring Basis (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Assets [Abstract]
 
 
 
 
 
 
Trading securities
$ 101,097 
 
$ 91,616 
$ 190,591 
 
 
Available for sale securities
9,699,146 
 
10,147,162 
10,698,074 
 
 
Fair value option securities
185,674 
 
167,125 
205,756 
 
 
Mortgage servicing rights
155,740 
153,774 
153,333 
132,889 
109,840 
100,812 
Derviative contracts, net of cash collateral, assets
357,680 
 
265,012 
546,206 
 
 
Liabilities: [Abstract]
 
 
 
 
 
 
Derivative contracts net of cash margin, liabilities
297,851 
 
247,185 
521,991 
 
 
U.S. Government agency debentures [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
19,027 
 
34,120 
60,713 
 
 
U.S. agency residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
13,540 
 
21,011 
43,858 
 
 
Available for sale securities
7,259,504 
 
7,716,010 
8,372,795 
 
 
Fair value option securities
181,205 
 
157,431 
203,816 
 
 
Municipal and other tax-exempt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
32,950 
 
27,350 
53,819 
 
 
Available for sale securities
64,970 
 
73,775 
95,103 
 
 
Other trading securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
35,580 
 
9,135 
32,201 
 
 
U.S. Treasury [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
1,024 
 
1,042 
1,060 
 
 
Privately issued residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
179,042 
 
221,099 
297,175 
 
 
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
2,115,295 
 
2,055,804 
1,846,943 
 
 
Other debt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
34,528 
 
35,241 
35,894 
 
 
Fair value option securities
4,469 
 
9,694 
1,940 
 
 
Perpetual preferred stock [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
24,730 
 
22,863 
25,583 
 
 
Equity securities and mutual funds [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
20,053 
 
21,328 
23,521 
 
 
Fair Value, Measurements, Recurring [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
101,097 
 
91,616 
190,591 
 
 
Available for sale securities
9,699,146 
 
10,147,162 
10,698,074 
 
 
Fair value option securities
185,674 
 
167,125 
205,756 
 
 
Residential mortgage loans held for sale
325,875 
 
200,546 
301,057 
 
 
Mortgage servicing rights
155,740 1
 
153,333 1
132,889 1
 
 
Derviative contracts, net of cash collateral, assets
357,680 2
 
265,012 3
546,206 4
 
 
Other assets - private equity funds
27,834 
 
27,341 
28,379 
 
 
Liabilities: [Abstract]
 
 
 
 
 
 
Derivative contracts net of cash margin, liabilities
297,851 2
 
247,185 3
521,991 4
 
 
Fair Value, Measurements, Recurring [Member] |
U.S. Government agency debentures [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
19,027 
 
34,120 
60,713 
 
 
Fair Value, Measurements, Recurring [Member] |
U.S. agency residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
13,540 
 
21,011 
43,858 
 
 
Available for sale securities
7,259,504 
 
7,716,010 
8,372,795 
 
 
Fair value option securities
181,205 
 
157,431 
203,816 
 
 
Fair Value, Measurements, Recurring [Member] |
Municipal and other tax-exempt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
32,950 
 
27,350 
53,819 
 
 
Available for sale securities
64,970 
 
73,775 
95,103 
 
 
Fair Value, Measurements, Recurring [Member] |
Other trading securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
35,580 
 
9,135 
32,201 
 
 
Fair Value, Measurements, Recurring [Member] |
U.S. Treasury [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
1,024 
 
1,042 
1,060 
 
 
Fair Value, Measurements, Recurring [Member] |
Privately issued residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
179,042 
 
221,099 
297,175 
 
 
Fair Value, Measurements, Recurring [Member] |
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
2,115,295 
 
2,055,804 
1,846,943 
 
 
Fair Value, Measurements, Recurring [Member] |
Other debt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
34,528 
 
35,241 
35,894 
 
 
Fair value option securities
4,469 
 
9,694 
1,940 
 
 
Fair Value, Measurements, Recurring [Member] |
Perpetual preferred stock [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
24,730 
 
22,863 
25,583 
 
 
Fair Value, Measurements, Recurring [Member] |
Equity securities and mutual funds [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
20,053 
 
21,328 
23,521 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Available for sale securities
6,130 
 
1,042 
6,179 
 
 
Fair value option securities
0 
 
0 
0 
 
 
Residential mortgage loans held for sale
0 
 
0 
0 
 
 
Mortgage servicing rights
0 1
 
0 1
0 1
 
 
Derviative contracts, net of cash collateral, assets
800 2
 
2,712 3
17,588 4
 
 
Other assets - private equity funds
0 
 
0 
0 
 
 
Liabilities: [Abstract]
 
 
 
 
 
 
Derivative contracts net of cash margin, liabilities
0 2
 
0 3
0 4
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
U.S. Government agency debentures [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
U.S. agency residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair value option securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
Municipal and other tax-exempt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
Other trading securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
U.S. Treasury [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
1,024 
 
1,042 
1,060 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
Privately issued residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
Other debt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair value option securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
Perpetual preferred stock [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 1 [Member] |
Equity securities and mutual funds [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
5,106 
 
0 
5,119 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
101,097 
 
91,616 
190,591 
 
 
Available for sale securities
9,678,340 
 
10,119,396 
10,645,608 
 
 
Fair value option securities
185,674 
 
167,125 
205,756 
 
 
Residential mortgage loans held for sale
325,875 
 
200,546 
301,057 
 
 
Mortgage servicing rights
0 1
 
0 1
0 1
 
 
Derviative contracts, net of cash collateral, assets
356,880 2
 
262,300 3
528,618 4
 
 
Other assets - private equity funds
0 
 
0 
0 
 
 
Liabilities: [Abstract]
 
 
 
 
 
 
Derivative contracts net of cash margin, liabilities
297,851 2
 
247,185 3
521,991 4
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
U.S. Government agency debentures [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
19,027 
 
34,120 
60,713 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
U.S. agency residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
13,540 
 
21,011 
43,858 
 
 
Available for sale securities
7,259,504 
 
7,716,010 
8,372,795 
 
 
Fair value option securities
181,205 
 
157,431 
203,816 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
Municipal and other tax-exempt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
32,950 
 
27,350 
53,819 
 
 
Available for sale securities
54,525 
 
55,970 
56,256 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
Other trading securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
35,580 
 
9,135 
32,201 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
U.S. Treasury [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
Privately issued residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
179,042 
 
221,099 
297,175 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
2,115,295 
 
2,055,804 
1,846,943 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
Other debt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
30,297 
 
30,529 
30,701 
 
 
Fair value option securities
4,469 
 
9,694 
1,940 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
Perpetual preferred stock [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
24,730 
 
22,863 
25,583 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 2 [Member] |
Equity securities and mutual funds [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
14,947 
 
17,121 
16,155 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Available for sale securities
14,676 
 
26,724 
46,287 
 
 
Fair value option securities
0 
 
0 
0 
 
 
Residential mortgage loans held for sale
0 
 
0 
0 
 
 
Mortgage servicing rights
155,740 1
 
153,333 1
132,889 1
 
 
Derviative contracts, net of cash collateral, assets
0 2
 
0 3
0 4
 
 
Other assets - private equity funds
27,834 
 
27,341 
28,379 
 
 
Liabilities: [Abstract]
 
 
 
 
 
 
Derivative contracts net of cash margin, liabilities
0 2
 
0 3
0 4
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
U.S. Government agency debentures [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
U.S. agency residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair value option securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
Municipal and other tax-exempt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Available for sale securities
10,445 
 
17,805 
38,847 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
Other trading securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Trading securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
U.S. Treasury [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
Privately issued residential mortgage-backed securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
Other debt securities [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
4,231 
 
4,712 
5,193 
 
 
Fair value option securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
Perpetual preferred stock [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
0 
 
0 
0 
 
 
Fair Value, Measurements, Recurring [Member] |
Fair Value, Inputs, Level 3 [Member] |
Equity securities and mutual funds [Member]
 
 
 
 
 
 
Assets [Abstract]
 
 
 
 
 
 
Available for sale securities
$ 0 
 
$ 4,207 
$ 2,247 
 
 
Fair Value Measurements, Measured On Recurring Basis Significant Unobservable Inputs (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Charitable contributions to BOKF Foundation
$ 0 
$ 0 
$ 2,420 
$ 0 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Municipal and other tax-exempt securities [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Balance at beginning of period
15,523 
39,007 
17,805 
40,702 
Transfer to Level 3 from Level 2
0 
0 
0 
0 
Purchases and capital calls
0 
0 
0 
0 
Redemptions and distributions
(5,165)
0 
(7,487)
(98)
Other comprehensive gain (loss)
244 
(160)
362 
(1,757)
Balance at end of period
10,445 
38,847 
10,445 
38,847 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Municipal and other tax-exempt securities [Member] |
Gain (loss) on assets [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
0 
0 
0 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Municipal and other tax-exempt securities [Member] |
Loss on available for sale securities, net [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
(157)
 
(235)
 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Municipal and other tax-exempt securities [Member] |
Charitable Contributions to BOKF Foundation [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
 
0 
 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Other debt securities [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Balance at beginning of period
4,712 
5,193 
4,712 
5,399 
Transfer to Level 3 from Level 2
0 
0 
0 
0 
Purchases and capital calls
0 
0 
0 
0 
Redemptions and distributions
(500)
0 
(500)
0 
Other comprehensive gain (loss)
19 
0 
19 
(206)
Balance at end of period
4,231 
5,193 
4,231 
5,193 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Other debt securities [Member] |
Gain (loss) on assets [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
0 
0 
0 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Other debt securities [Member] |
Loss on available for sale securities, net [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
 
0 
 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Other debt securities [Member] |
Charitable Contributions to BOKF Foundation [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
 
0 
 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Equity securities and mutual funds [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Balance at beginning of period
0 
2,472 
4,207 
2,161 
Transfer to Level 3 from Level 2
0 
0 
0 
 
Purchases and capital calls
0 
0 
0 
0 
Redemptions and distributions
0 
0 
0 
0 
Other comprehensive gain (loss)
0 
(225)
(1,787)
86 
Balance at end of period
0 
2,247 
0 
2,247 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Equity securities and mutual funds [Member] |
Gain (loss) on assets [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
0 
0 
0 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Equity securities and mutual funds [Member] |
Loss on available for sale securities, net [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
 
0 
 
Fair Value, Inputs, Level 3 [Member] |
Available-for-sale Securities [Member] |
Equity securities and mutual funds [Member] |
Charitable Contributions to BOKF Foundation [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
 
(2,420)
 
Fair Value, Inputs, Level 3 [Member] |
Other Assets [Member] |
Private equity funds [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Balance at beginning of period
27,466 
29,216 
27,341 
28,169 
Transfer to Level 3 from Level 2
0 
0 
0 
0 
Purchases and capital calls
220 
148 
425 
640 
Redemptions and distributions
(2,076)
(1,005)
(3,181)
(1,835)
Other comprehensive gain (loss)
0 
0 
0 
0 
Balance at end of period
27,833 
28,379 
27,833 
28,379 
Fair Value, Inputs, Level 3 [Member] |
Other Assets [Member] |
Private equity funds [Member] |
Gain (loss) on assets [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
2,223 
20 
3,248 
1,405 
Fair Value, Inputs, Level 3 [Member] |
Other Assets [Member] |
Private equity funds [Member] |
Loss on available for sale securities, net [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
0 
 
0 
 
Fair Value, Inputs, Level 3 [Member] |
Other Assets [Member] |
Private equity funds [Member] |
Charitable Contributions to BOKF Foundation [Member]
 
 
 
 
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward]
 
 
 
 
Gain (loss) recognized in earnings
$ 0 
 
$ 0 
 
Fair Value Measurements Fair Value Measurements, Financial Instruments Measured On a Recurring Basis, Quantitative Information (Details) (Fair Value, Inputs, Level 3 [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Available-for-sale Securities [Member] |
Municipal and other tax-exempt securities [Member]
 
 
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]
 
 
 
Fair Value Inputs, Asset, Par Value
$ 10,970 
$ 18,695 
$ 45,470 
Fair Value Inputs, Asset, Amortized Cost
10,903 
18,624 
40,759 1
Fair Value Inputs, Asset, Fair Value
10,445 
17,805 
38,847 
Fair Value Measurements, Valuation Techniques
Discounted cash flows 2
Discounted cash flows 2
 
Fair Value Measurements, Significant Unobservable Input
Interest rate spread 
Interest rate spread 
 
Fair Value Inputs, Assets, Discount Rate, Minimum
4.91% 3
4.97% 4
 
Fair Value Inputs, Assets, Discount Rate, Maximum
5.21% 3
5.27% 4
 
Fair Value Inputs, Assets, Discount Rate, Weighted Average
5.17% 3
5.16% 4
 
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Minimum
95.11% 5
95.02% 5
 
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Maximum
96.13% 5
95.50% 5
 
Fair Value Inputs, Fair Value As Percentage of Par Value, Weighted Average
95.38% 5
95.24% 5
 
Investment Grade Tax Exempt Securities Yield Spread Over Comparable Securities Minimum
480 
467 
 
Investment Grade Tax Exempt Securities Yield Spread Over Comparable Securities Maximum
508 
518 
 
Additional Decrease in Fair Value From a 100 Basis Point Increase in Interest Rate Spread
(101)
 
 
Available-for-sale Securities [Member] |
Municipal and other tax-exempt securities [Member] |
External Credit Rating, Investment Grade [Member]
 
 
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]
 
 
 
Fair Value Inputs, Asset, Par Value
 
 
28,470 
Fair Value Inputs, Asset, Amortized Cost
 
 
28,375 1
Fair Value Inputs, Asset, Fair Value
 
 
27,116 
Fair Value Measurements, Valuation Techniques
 
 
Discounted cash flows 2
Fair Value Measurements, Significant Unobservable Input
 
 
Interest rate spread 
Fair Value Inputs, Assets, Discount Rate, Minimum
 
 
4.99% 6
Fair Value Inputs, Assets, Discount Rate, Maximum
 
 
5.49% 6
Fair Value Inputs, Assets, Discount Rate, Weighted Average
 
 
5.24% 6
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Minimum
 
 
95.01% 5
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Maximum
 
 
95.60% 5
Fair Value Inputs, Fair Value As Percentage of Par Value, Weighted Average
 
 
95.25% 5
Investment Grade Tax Exempt Securities Yield Spread Over Comparable Securities Minimum
 
 
457 
Investment Grade Tax Exempt Securities Yield Spread Over Comparable Securities Maximum
 
 
520 
Available-for-sale Securities [Member] |
Municipal and other tax-exempt securities [Member] |
External Credit Rating, Non Investment Grade [Member]
 
 
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]
 
 
 
Fair Value Inputs, Asset, Par Value
 
 
17,000 
Fair Value Inputs, Asset, Amortized Cost
 
 
12,384 1
Fair Value Inputs, Asset, Fair Value
 
 
11,731 
Fair Value Measurements, Valuation Techniques
 
 
Discounted cash flows 2
Fair Value Measurements, Significant Unobservable Input
 
 
Interest rate spread 
Fair Value Inputs, Assets, Discount Rate, Minimum
 
 
9.15% 7
Fair Value Inputs, Assets, Discount Rate, Maximum
 
 
11.19% 7
Fair Value Inputs, Assets, Discount Rate, Weighted Average
 
 
9.87% 7
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Minimum
 
 
68.91% 5
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Maximum
 
 
69.09% 5
Fair Value Inputs, Fair Value As Percentage of Par Value, Weighted Average
 
 
69.01% 5
Below Investment Grade Tax Exempt Securities Yield Spread Over Comparable Securities
 
 
700 
Available-for-sale Securities [Member] |
Other debt securities [Member]
 
 
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]
 
 
 
Fair Value Inputs, Asset, Par Value
4,400 
4,900 
5,400 
Fair Value Inputs, Asset, Amortized Cost
4,400 
4,900 
5,400 1
Fair Value Inputs, Asset, Fair Value
4,231 
4,712 
5,193 
Fair Value Measurements, Valuation Techniques
Discounted cash flows 2
Discounted cash flows 2
Discounted cash flows 2
Fair Value Measurements, Significant Unobservable Input
Interest rate spread 
Interest rate spread 
Interest rate spread 
Fair Value Inputs, Assets, Discount Rate, Minimum
4.38% 8
5.67% 8
4.41% 8
Fair Value Inputs, Assets, Discount Rate, Maximum
5.65% 8
5.67% 8
5.69% 8
Fair Value Inputs, Assets, Discount Rate, Weighted Average
5.51% 8
5.67% 8
5.48% 8
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Minimum
95.11% 5
96.16% 5
96.13% 5
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Maximum
95.28% 5
96.16% 5
96.16% 5
Fair Value Inputs, Fair Value As Percentage of Par Value, Weighted Average
95.17% 5
96.16% 5
96.16% 5
Average Yields On Comparable Short-term Taxable Securities Maximum
1.00% 
1.00% 
1.00% 
Additional Decrease in Fair Value From a 100 Basis Point Increase in Interest Rate Spread
(41)
 
 
Available-for-sale Securities [Member] |
Equity securities and mutual funds [Member]
 
 
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]
 
 
 
Fair Value Inputs, Asset, Amortized Cost
 
2,420 
2,420 
Fair Value Inputs, Asset, Fair Value
 
4,207 
2,247 
Fair Value Measurements, Valuation Techniques
 
Publicly announced preliminary purchase price information from acquirer. 
Tangible book value per share of publicly traded financial institutions of similar size, less liquidity discount. 
Fair Value Measurements, Significant Unobservable Input
 
Discount for settlement uncertainty. 
Peer group tangible book per share and liquidity discount. 
Fair Value Inputs, Assets, Liquidity Discount
 
 
20.00% 
Other assets - private equity funds [Member]
 
 
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]
 
 
 
Fair Value Inputs, Asset, Fair Value
$ 27,834 
$ 27,341 
$ 28,379 
Fair Value Measurements, Valuation Techniques
Net asset value reported by underlying fund 
Net asset value reported by underlying fund 
Net asset value reported by underlying fund 
Fair Value Measurements, Significant Unobservable Input
Net asset value reported by underlying fund 
Net asset value reported by underlying fund 
Net asset value reported by underlying fund 
Fair Value Measurements, Fair Value Measured On a Nonrecurring Basis (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Impaired Loans [Member]
 
 
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
Gross charge-offs against allowance for loan losses
$ 949 
$ 5,060 
$ 1,627 
$ 6,601 
Net losses and expenses of repossessed assets, net
0 
0 
0 
0 
Real estate and other repossessed assets [Member]
 
 
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
Gross charge-offs against allowance for loan losses
0 
0 
0 
0 
Net losses and expenses of repossessed assets, net
(21)
863 
1,308 
1,014 
Fair Value, Inputs, Level 1 [Member] |
Impaired Loans [Member]
 
 
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
Assets, Fair Value Disclosure, Nonrecurring
0 
0 
0 
0 
Fair Value, Inputs, Level 1 [Member] |
Real estate and other repossessed assets [Member]
 
 
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
Assets, Fair Value Disclosure, Nonrecurring
0 
0 
0 
0 
Fair Value, Inputs, Level 2 [Member] |
Impaired Loans [Member]
 
 
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
Assets, Fair Value Disclosure, Nonrecurring
5,182 
10,245 
5,182 
10,245 
Fair Value, Inputs, Level 2 [Member] |
Real estate and other repossessed assets [Member]
 
 
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
Assets, Fair Value Disclosure, Nonrecurring
8,303 
7,949 
8,303 
7,949 
Fair Value, Inputs, Level 3 [Member] |
Impaired Loans [Member]
 
 
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
Assets, Fair Value Disclosure, Nonrecurring
65 
4,930 
65 
4,930 
Fair Value, Inputs, Level 3 [Member] |
Real estate and other repossessed assets [Member]
 
 
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
Assets, Fair Value Disclosure, Nonrecurring
$ 27 
$ 271 
$ 27 
$ 271 
Fair Value Measurements Fair Value Measurement, Measured On Non-Recurring Basis, Signfiicant Unobservable Inputs, Quantitative Information (Details) (Fair Value, Measurements, Nonrecurring [Member], Fair Value, Inputs, Level 3 [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Impaired Loans [Member]
 
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]
 
 
Assets, Fair Value Disclosure, Nonrecurring
$ 65 
$ 4,930 
Fair Value Measurements, Valuation Techniques
Appraised value, as adjusted 
Appraised value, as adjusted 
Fair Value Measurements, Significant Unobservable Input
Broker quotes and management's knowledge of industry and collateral. 
Broker quotes and management's knowledge of industry and collateral. 
Real estate and other repossessed assets [Member]
 
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]
 
 
Assets, Fair Value Disclosure, Nonrecurring
$ 27 
$ 271 
Fair Value Measurements, Valuation Techniques
Listing value, less cost to sell 
Listing value, less cost to sell 
Fair Value Measurements, Significant Unobservable Input
Marketability adjustment off appraised value 
Marketability adjustments off appraised value 
Fair Value Measurement, Percentage of Appraised Value, Minimum
77.00% 1
71.00% 2
Fair Value Measurement, Percentage of Appraised Value, Maximum
77.00% 1
81.00% 2
Fair Value Measurement, Percentage of Appraised Value, Weighted Average
77.00% 1
76.00% 2
Fair Value Measurement, Marketability adjustment as perecentage of appraised value
10.00% 
15.00% 
Fair Value Measurements, Financial Instruments (Details) (USD $)
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Interest-bearing cash and cash equivalents
$ 732,395,000 
 
$ 574,282,000 
$ 570,836,000 
 
 
Trading securities
101,097,000 
 
91,616,000 
190,591,000 
 
 
Investment securities
649,937,000 1
 
677,878,000 2
615,790,000 3
 
 
Available for sale securities
9,699,146,000 
 
10,147,162,000 
10,698,074,000 
 
 
Fair value option securities
185,674,000 
 
167,125,000 
205,756,000 
 
 
Residential mortgage loans held for sale
325,875,000 
 
200,546,000 
301,057,000 
 
 
Loans
13,426,858,000 
 
12,792,264,000 
12,440,782,000 
 
 
Allowance for loan losses
(190,690,000)
(188,318,000)
(185,396,000)
(203,124,000)
(205,965,000)
(215,507,000)
Loans, net of allowance
13,236,168,000 
 
12,606,868,000 
12,237,658,000 
 
 
Mortgage servicing rights
155,740,000 
153,774,000 
153,333,000 
132,889,000 
109,840,000 
100,812,000 
Derviative contracts, net of cash collateral, assets
357,680,000 
 
265,012,000 
546,206,000 
 
 
Time deposits
2,615,826,000 
 
2,695,993,000 
2,767,972,000 
 
 
Subordinated debentures
347,890,000 
 
347,802,000 
347,716,000 
 
 
Derivative contracts net of cash margin, liabilities
297,851,000 
 
247,185,000 
521,991,000 
 
 
Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]
 
 
 
 
 
 
Specific allocation of allowance for loan losses included in fair value of loans
164,000,000 
 
157,000,000 
161,000,000 
 
 
Commercial [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
8,367,661,000 
 
7,943,221,000 
7,708,120,000 
 
 
Allowance for loan losses
(87,806,000)
(85,246,000)
(79,180,000)
(64,044,000)
(66,419,000)
(65,280,000)
Commercial Real Estate [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
2,654,978,000 
 
2,415,353,000 
2,317,096,000 
 
 
Allowance for loan losses
(41,252,000)
(41,589,000)
(41,573,000)
(49,687,000)
(48,528,000)
(54,884,000)
Residential Mortgage [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
2,008,215,000 
 
2,052,026,000 
2,039,785,000 
 
 
Allowance for loan losses
(27,654,000)
(28,307,000)
(29,465,000)
(39,206,000)
(40,222,000)
(41,703,000)
Consumer [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
396,004,000 
 
381,664,000 
375,781,000 
 
 
Allowance for loan losses
(7,029,000)
(6,211,000)
(6,965,000)
(7,738,000)
(7,984,000)
(9,453,000)
U.S. Government agency debentures [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
19,027,000 
 
34,120,000 
60,713,000 
 
 
U.S. agency residential mortgage-backed securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
13,540,000 
 
21,011,000 
43,858,000 
 
 
Available for sale securities
7,259,504,000 
 
7,716,010,000 
8,372,795,000 
 
 
Fair value option securities
181,205,000 
 
157,431,000 
203,816,000 
 
 
Municipal and other tax-exempt securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
32,950,000 
 
27,350,000 
53,819,000 
 
 
Investment securities
425,221,000 1
 
440,187,000 2
375,317,000 3
 
 
Available for sale securities
64,970,000 
 
73,775,000 
95,103,000 
 
 
Other trading securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
35,580,000 
 
9,135,000 
32,201,000 
 
 
U.S. Treasury [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
1,024,000 
 
1,042,000 
1,060,000 
 
 
Privately issued residential mortgage-backed securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
179,042,000 
 
221,099,000 
297,175,000 
 
 
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
2,115,295,000 
 
2,055,804,000 
1,846,943,000 
 
 
Other debt securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Investment securities
182,743,000 1
 
187,509,000 2
176,301,000 3
 
 
Available for sale securities
34,528,000 
 
35,241,000 
35,894,000 
 
 
Fair value option securities
4,469,000 
 
9,694,000 
1,940,000 
 
 
Perpetual preferred stock [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
24,730,000 
 
22,863,000 
25,583,000 
 
 
Equity securities and mutual funds [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
20,053,000 
 
21,328,000 
23,521,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Cash and due from banks
615,479,000 
 
512,931,000 
507,551,000 
 
 
Interest-bearing cash and cash equivalents
732,395,000 
 
574,282,000 
570,836,000 
 
 
Trading securities
101,097,000 
 
91,616,000 
190,591,000 
 
 
Investment securities
649,937,000 
 
677,878,000 
615,790,000 
 
 
Available for sale securities
9,699,146,000 
 
10,147,162,000 
10,698,074,000 
 
 
Fair value option securities
185,674,000 
 
167,125,000 
205,756,000 
 
 
Residential mortgage loans held for sale
325,875,000 
 
200,546,000 
301,057,000 
 
 
Loans
13,426,858,000 
 
12,792,264,000 
12,440,782,000 
 
 
Allowance for loan losses
(190,690,000)
 
(185,396,000)
(203,124,000)
 
 
Loans, net of allowance
13,236,168,000 
 
12,606,868,000 
12,237,658,000 
 
 
Mortgage servicing rights
155,740,000 
 
153,333,000 
132,889,000 
 
 
Derviative contracts, net of cash collateral, assets
357,680,000 
 
265,012,000 
546,206,000 
 
 
Other assets - private equity funds
27,834,000 
 
27,341,000 
28,379,000 
 
 
Deposits with no stated maturity
17,956,038,000 
 
17,573,334,000 
16,728,258,000 
 
 
Time deposits
2,615,826,000 
 
2,695,993,000 
2,767,972,000 
 
 
Other borrowed funds
3,009,610,000 
 
2,721,888,000 
4,073,915,000 
 
 
Subordinated debentures
347,890,000 
 
347,802,000 
347,716,000 
 
 
Derivative contracts net of cash margin, liabilities
297,851,000 
 
247,185,000 
521,991,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Commercial [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
8,367,661,000 
 
7,943,221,000 
7,708,120,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Commercial Real Estate [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
2,654,978,000 
 
2,415,353,000 
2,317,096,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Residential Mortgage [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
2,008,215,000 
 
2,052,026,000 
2,039,785,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Consumer [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
396,004,000 
 
381,664,000 
375,781,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
U.S. Government agency debentures [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
19,027,000 
 
34,120,000 
60,713,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
U.S. agency residential mortgage-backed securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
13,540,000 
 
21,011,000 
43,858,000 
 
 
Investment securities
41,973,000 
 
50,182,000 
64,172,000 
 
 
Available for sale securities
7,259,504,000 
 
7,716,010,000 
8,372,795,000 
 
 
Fair value option securities
181,205,000 
 
157,431,000 
203,816,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Municipal and other tax-exempt securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
32,950,000 
 
27,350,000 
53,819,000 
 
 
Investment securities
425,221,000 
 
440,187,000 
375,317,000 
 
 
Available for sale securities
64,970,000 
 
73,775,000 
95,103,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Other trading securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
35,580,000 
 
9,135,000 
32,201,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
U.S. Treasury [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
1,024,000 
 
1,042,000 
1,060,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Privately issued residential mortgage-backed securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
179,042,000 
 
221,099,000 
297,175,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
2,115,295,000 
 
2,055,804,000 
1,846,943,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Other debt securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Investment securities
182,743,000 
 
187,509,000 
176,301,000 
 
 
Available for sale securities
34,528,000 
 
35,241,000 
35,894,000 
 
 
Fair value option securities
4,469,000 
 
9,694,000 
1,940,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Perpetual preferred stock [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
24,730,000 
 
22,863,000 
25,583,000 
 
 
Carrying (Reported) Amount, Fair Value Disclosure [Member] |
Equity securities and mutual funds [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
20,053,000 
 
21,328,000 
23,521,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Cash and due from banks
615,479,000 
 
512,931,000 
507,551,000 
 
 
Interest-bearing cash and cash equivalents
732,395,000 
 
574,282,000 
570,836,000 
 
 
Trading securities
101,097,000 
 
91,616,000 
190,591,000 
 
 
Investment securities
670,811,000 
 
687,127,000 
625,705,000 
 
 
Available for sale securities
9,699,146,000 
 
10,147,162,000 
10,698,074,000 
 
 
Fair value option securities
185,674,000 
 
167,125,000 
205,756,000 
 
 
Residential mortgage loans held for sale
325,875,000 
 
200,546,000 
301,057,000 
 
 
Loans
12,962,523,000 
 
12,674,420,000 
12,334,265,000 
 
 
Allowance for loan losses
0 
 
0 
0 
 
 
Loans, net of allowance
12,962,523,000 
 
12,674,420,000 
12,334,265,000 
 
 
Mortgage servicing rights
155,740,000 
 
153,333,000 
132,889,000 
 
 
Derviative contracts, net of cash collateral, assets
357,680,000 
 
265,012,000 
546,206,000 
 
 
Other assets - private equity funds
27,834,000 
 
27,341,000 
28,379,000 
 
 
Deposits with no stated maturity
17,956,038,000 
 
17,573,334,000 
16,728,258,000 
 
 
Time deposits
2,623,086,000 
 
2,697,290,000 
2,781,202,000 
 
 
Other borrowed funds
2,984,331,000 
 
2,693,788,000 
4,034,685,000 
 
 
Subordinated debentures
344,717,000 
 
344,783,000 
345,201,000 
 
 
Derivative contracts net of cash margin, liabilities
297,851,000 
 
247,185,000 
521,991,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Commercial [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
8,244,031,000 
 
7,835,325,000 
7,638,327,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Commercial Real Estate [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
2,635,903,000 
 
2,394,443,000 
2,288,188,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Residential Mortgage [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
2,043,551,000 
 
2,068,690,000 
2,038,375,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Consumer [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
39,038,000 
 
375,962,000 
369,375,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
U.S. Government agency debentures [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
19,027,000 
 
34,120,000 
60,713,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
U.S. agency residential mortgage-backed securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
13,540,000 
 
21,011,000 
43,858,000 
 
 
Investment securities
44,176,000 
 
51,864,000 
66,796,000 
 
 
Available for sale securities
7,259,504,000 
 
7,716,010,000 
8,372,795,000 
 
 
Fair value option securities
181,205,000 
 
157,431,000 
203,816,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Municipal and other tax-exempt securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
32,950,000 
 
27,350,000 
53,819,000 
 
 
Investment securities
429,051,000 
 
439,870,000 
371,690,000 
 
 
Available for sale securities
64,970,000 
 
73,775,000 
95,103,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Other trading securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Trading securities
35,580,000 
 
9,135,000 
32,201,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
U.S. Treasury [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
1,024,000 
 
1,042,000 
1,060,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Privately issued residential mortgage-backed securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
179,042,000 
 
221,099,000 
297,175,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Commercial mortgage-backed securities guaranteed by U.S. government agencies [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
2,115,295,000 
 
2,055,804,000 
1,846,943,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Other debt securities [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Investment securities
197,584,000 
 
195,393,000 
187,219,000 
 
 
Available for sale securities
34,528,000 
 
35,241,000 
35,894,000 
 
 
Fair value option securities
4,469,000 
 
9,694,000 
1,940,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Perpetual preferred stock [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
24,730,000 
 
22,863,000 
25,583,000 
 
 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Equity securities and mutual funds [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Available for sale securities
20,053,000 
 
21,328,000 
23,521,000 
 
 
Contractual Yield, Minimum [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Time deposits
0.0003 
 
0.0001 
0.0003 
 
 
Other borrowed funds
0.0025 
 
0.0025 
0.0025 
 
 
Subordinated debentures
0.0091 
 
0.0095 
0.0097 
 
 
Contractual Yield, Minimum [Member] |
Commercial [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0016 
 
0.0004 
0.0025 
 
 
Contractual Yield, Minimum [Member] |
Commercial Real Estate [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0038 
 
0.0038 
0.0038 
 
 
Contractual Yield, Minimum [Member] |
Residential Mortgage [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0120 
 
0.0038 
0.0038 
 
 
Contractual Yield, Minimum [Member] |
Consumer [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0038 
 
0.0038 
0.0038 
 
 
Contractual Yield, Maximum [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Time deposits
0.0964 
 
0.0964 
0.0964 
 
 
Other borrowed funds
0.0680 
 
0.0478 
0.0525 
 
 
Subordinated debentures
0.0500 
 
0.0500 
0.0500 
 
 
Contractual Yield, Maximum [Member] |
Commercial [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.3000 
 
0.3000 
0.3000 
 
 
Contractual Yield, Maximum [Member] |
Commercial Real Estate [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.1800 
 
0.1800 
0.1800 
 
 
Contractual Yield, Maximum [Member] |
Residential Mortgage [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.1800 
 
0.1800 
0.1800 
 
 
Contractual Yield, Maximum [Member] |
Consumer [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.2100 
 
0.2100 
0.2100 
 
 
Average Repricing [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Time deposits
2.07 
 
2.12 
2.02 
 
 
Other borrowed funds
0.00 
 
0.03 
0.00 
 
 
Subordinated debentures
2.16 
 
2.63 
3.10 
 
 
Average Repricing [Member] |
Commercial [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.67 
 
0.49 
0.63 
 
 
Average Repricing [Member] |
Commercial Real Estate [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.83 
 
0.78 
0.83 
 
 
Average Repricing [Member] |
Residential Mortgage [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
2.49 
 
2.63 
3.64 
 
 
Average Repricing [Member] |
Consumer [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.49 
 
0.55 
0.35 
 
 
Discount Rate, Minimum [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Time deposits
0.0074 
 
0.0075 
0.0076 
 
 
Other borrowed funds
0.0009 
 
0.0008 
0.0007 
 
 
Subordinated debentures
0.0220 
 
0.0222 
0.0224 
 
 
Discount Rate, Minimum [Member] |
Commercial [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0055 
 
0.0048 
0.0059 
 
 
Discount Rate, Minimum [Member] |
Commercial Real Estate [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0114 
 
0.0121 
0.0123 
 
 
Discount Rate, Minimum [Member] |
Residential Mortgage [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0055 
 
0.0059 
0.0070 
 
 
Discount Rate, Minimum [Member] |
Consumer [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0107 
 
0.0122 
0.0126 
 
 
Discount Rate, Maximum [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Time deposits
0.0129 
 
0.0133 
0.0130 
 
 
Other borrowed funds
0.0262 
 
0.0264 
0.0266 
 
 
Subordinated debentures
0.0220 
 
0.0222 
0.0224 
 
 
Discount Rate, Maximum [Member] |
Commercial [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0428 
 
0.0433 
0.0419 
 
 
Discount Rate, Maximum [Member] |
Commercial Real Estate [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0359 
 
0.0349 
0.0347 
 
 
Discount Rate, Maximum [Member] |
Residential Mortgage [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
0.0418 
 
0.0473 
0.0446 
 
 
Discount Rate, Maximum [Member] |
Consumer [Member]
 
 
 
 
 
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
 
 
 
 
 
 
Loans
$ 0.0379 
 
$ 0.0375 
$ 0.0374 
 
 
Federal and State Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Amount [Abstract]
 
 
 
 
Federal statutory tax
$ 39,886 
$ 42,459 
$ 79,976 
$ 90,113 
Tax exempt revenue
(2,099)
(1,803)
(4,090)
(3,545)
Effect of state income taxes, net of federal benefit
2,457 
3,122 
5,327 
6,500 
Utilization of tax credits
(2,836)
(1,826)
(5,466)
(3,548)
Bank-owned life insurance
(784)
(993)
(1,552)
(1,878)
Charitable contributions to BOKF Foundation
0 
0 
(427)
0 
Other, net
606 
464 
963 
877 
Total
$ 37,230 
$ 41,423 
$ 74,731 
$ 88,519 
Effective Income Tax Rate Reconciliation, Percent [Abstract]
 
 
 
 
Federal statutory tax (in hundredths)
35.00% 
35.00% 
35.00% 
35.00% 
Tax exempt revenue (in hundredths)
(2.00%)
(1.00%)
(2.00%)
(1.00%)
Effect of state income taxes, net of federal benefit (in hundredths)
3.00% 
3.00% 
3.00% 
2.00% 
Utilization of tax credits (in hundredths)
(2.00%)
(2.00%)
(2.00%)
(1.00%)
Bank-owned life insurance (in hundredths)
(1.00%)
(1.00%)
(1.00%)
(1.00%)
Charitable contribution to BOKF Foundation (in hundredths)
0.00% 
0.00% 
0.00% 
0.00% 
Other, net (in hundredths)
0.00% 
0.00% 
0.00% 
0.00% 
Total (in hundredths)
33.00% 
34.00% 
33.00% 
34.00%