| ☑ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 | ||||
☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 | ||||
| Illinois | 36-3873352 | ||||
| (State of incorporation or organization) | (I.R.S. Employer Identification No.) | ||||
| Title of Each Class | Ticker Symbol | Name of Each Exchange on Which Registered | ||||||
| Common Stock, no par value | WTFC | The Nasdaq Global Select Market | ||||||
Depositary Shares, Each Representing a 1/1,000th Interest in a Share of | WTFCN | The Nasdaq Global Select Market | ||||||
| 7.875% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series F, no par value | ||||||||
| Large accelerated filer | ☑ | Accelerated filer | ☐ | ||||||||||||||||||||
| Non-accelerated filer | ☐ | (Do not check if a smaller reporting company) | Smaller reporting company | ☐ | |||||||||||||||||||
| Emerging growth company | ☐ | ||||||||||||||||||||||
| Page | ||||||||
| PART I. — FINANCIAL INFORMATION | ||||||||
| ITEM 1. | ||||||||
| ITEM 2. | ||||||||
| ITEM 3. | ||||||||
| ITEM 4. | ||||||||
| PART II. — OTHER INFORMATION | ||||||||
| ITEM 1. | ||||||||
| ITEM 1A. | ||||||||
| ITEM 2. | ||||||||
| ITEM 3. | Defaults Upon Senior Securities | NA | ||||||
| ITEM 4. | Mine Safety Disclosures | NA | ||||||
| ITEM 5. | ||||||||
| ITEM 6. | ||||||||
WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CONDITION | |||||||||||||||||
| (Unaudited) | (Unaudited) | ||||||||||||||||
| (Dollars in thousands, except per share data) | September 30, 2025 | December 31, 2024 | September 30, 2024 | ||||||||||||||
| Assets | |||||||||||||||||
| Cash and due from banks | $ | 565,406 | $ | 452,017 | $ | 725,465 | |||||||||||
| Federal funds sold and securities purchased under resale agreements | 63 | 6,519 | 5,663 | ||||||||||||||
| Interest-bearing deposits with banks | 3,422,452 | 4,409,753 | 3,648,117 | ||||||||||||||
| Available-for-sale securities, at fair value | 5,274,124 | 4,141,482 | 3,912,232 | ||||||||||||||
Held-to-maturity securities, at amortized cost, net of allowance for credit losses of $395, $457 and $479 at September 30, 2025, December 31, 2024 and September 30, 2024, respectively ($2.9 billion, $2.9 billion and $3.1 billion fair value at September 30, 2025, December 31, 2024 and September 30, 2024, respectively) | 3,438,406 | 3,613,263 | 3,677,420 | ||||||||||||||
| Trading account securities | — | 4,072 | 3,472 | ||||||||||||||
| Equity securities with readily determinable fair value | 63,445 | 215,412 | 125,310 | ||||||||||||||
| Federal Home Loan Bank and Federal Reserve Bank stock | 282,755 | 281,407 | 266,908 | ||||||||||||||
| Brokerage customer receivables | — | 18,102 | 16,662 | ||||||||||||||
| Mortgage loans held-for-sale, at fair value | 333,883 | 331,261 | 461,067 | ||||||||||||||
| Loans, net of unearned income | 52,063,482 | 48,055,037 | 47,067,447 | ||||||||||||||
| Allowance for loan losses | (386,622) | (364,017) | (360,279) | ||||||||||||||
| Net loans | 51,676,860 | 47,691,020 | 46,707,168 | ||||||||||||||
| Premises, software and equipment, net | 775,425 | 779,130 | 772,002 | ||||||||||||||
| Lease investments, net | 301,000 | 278,264 | 270,171 | ||||||||||||||
| Accrued interest receivable and other assets | 1,614,674 | 1,739,334 | 1,721,090 | ||||||||||||||
| Receivable on unsettled securities sales | 978,209 | — | 551,031 | ||||||||||||||
| Goodwill | 797,639 | 796,942 | 800,780 | ||||||||||||||
| Other acquisition-related intangible assets | 105,297 | 121,690 | 123,866 | ||||||||||||||
| Total assets | $ | 69,629,638 | $ | 64,879,668 | $ | 63,788,424 | |||||||||||
| Liabilities and Shareholders’ Equity | |||||||||||||||||
| Deposits: | |||||||||||||||||
| Non-interest-bearing | $ | 10,952,146 | $ | 11,410,018 | $ | 10,739,132 | |||||||||||
| Interest-bearing | 45,759,235 | 41,102,331 | 40,665,834 | ||||||||||||||
| Total deposits | 56,711,381 | 52,512,349 | 51,404,966 | ||||||||||||||
| Federal Home Loan Bank advances | 3,151,309 | 3,151,309 | 3,171,309 | ||||||||||||||
| Other borrowings | 579,328 | 534,803 | 647,043 | ||||||||||||||
| Subordinated notes | 298,536 | 298,283 | 298,188 | ||||||||||||||
| Junior subordinated debentures | 253,566 | 253,566 | 253,566 | ||||||||||||||
| Accrued interest payable and other liabilities | 1,589,761 | 1,785,061 | 1,613,638 | ||||||||||||||
| Total liabilities | 62,583,881 | 58,535,371 | 57,388,710 | ||||||||||||||
| Shareholders’ Equity: | |||||||||||||||||
Preferred stock, no par value; 20,000,000 shares authorized: | |||||||||||||||||
Series D - $25 liquidation value; no shares issued and outstanding at September 30, 2025, and 5,000,000 shares issued and outstanding at December 31, 2024 and September 30, 2024 | — | 125,000 | 125,000 | ||||||||||||||
Series E - $25,000 liquidation value; no shares issued and outstanding at September 30, 2025, and 11,500 shares issued and outstanding at December 31, 2024 and September 30, 2024 | — | 287,500 | 287,500 | ||||||||||||||
Series F - $25,000 liquidation value; 17,000 shares issued and outstanding at September 30, 2025 and no shares issued and outstanding at December 31, 2024 and September 30, 2024 | 425,000 | — | — | ||||||||||||||
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at September 30, 2025, December 31, 2024 and September 30, 2024; 67,042,228 shares issued at September 30, 2025, 66,560,182 shares issued at December 31, 2024 and 66,546,351 shares issued at September 30, 2024 | 67,042 | 66,560 | 66,546 | ||||||||||||||
| Surplus | 2,521,306 | 2,482,561 | 2,470,228 | ||||||||||||||
Treasury stock, at cost, 81,019 shares at September 30, 2025, 64,955 shares at December 31, 2024, and 64,808 shares at September 30, 2024 | (9,150) | (6,153) | (6,098) | ||||||||||||||
| Retained earnings | 4,356,367 | 3,897,164 | 3,748,715 | ||||||||||||||
| Accumulated other comprehensive loss | (314,808) | (508,335) | (292,177) | ||||||||||||||
| Total shareholders’ equity | 7,045,757 | 6,344,297 | 6,399,714 | ||||||||||||||
| Total liabilities and shareholders’ equity | $ | 69,629,638 | $ | 64,879,668 | $ | 63,788,424 | |||||||||||
| Three Months Ended | Nine Months Ended | ||||||||||||||||||||||
| (Dollars in thousands, except per share data) | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | |||||||||||||||||||
| Interest income | |||||||||||||||||||||||
| Interest and fees on loans | $ | 832,140 | $ | 794,163 | $ | 2,398,499 | $ | 2,254,316 | |||||||||||||||
| Mortgage loans held-for-sale | 4,757 | 6,233 | 13,875 | 15,813 | |||||||||||||||||||
| Interest-bearing deposits with banks | 34,992 | 32,608 | 106,075 | 68,997 | |||||||||||||||||||
| Federal funds sold and securities purchased under resale agreements | 75 | 277 | 530 | 313 | |||||||||||||||||||
| Investment securities | 86,426 | 69,592 | 236,495 | 209,049 | |||||||||||||||||||
| Trading account securities | — | 11 | 11 | 42 | |||||||||||||||||||
| Federal Home Loan Bank and Federal Reserve Bank stock | 5,444 | 5,451 | 16,144 | 14,903 | |||||||||||||||||||
| Brokerage customer receivables | — | 269 | 78 | 663 | |||||||||||||||||||
| Total interest income | 963,834 | 908,604 | 2,771,707 | 2,564,096 | |||||||||||||||||||
| Interest expense | |||||||||||||||||||||||
| Interest on deposits | 355,846 | 362,019 | 1,009,549 | 997,254 | |||||||||||||||||||
| Interest on Federal Home Loan Bank advances | 26,007 | 26,254 | 77,172 | 73,099 | |||||||||||||||||||
| Interest on other borrowings | 6,887 | 9,013 | 20,636 | 26,961 | |||||||||||||||||||
| Interest on subordinated notes | 3,717 | 3,712 | 11,166 | 14,384 | |||||||||||||||||||
| Interest on junior subordinated debentures | 4,367 | 5,023 | 13,006 | 15,011 | |||||||||||||||||||
| Total interest expense | 396,824 | 406,021 | 1,131,529 | 1,126,709 | |||||||||||||||||||
| Net interest income | 567,010 | 502,583 | 1,640,178 | 1,437,387 | |||||||||||||||||||
| Provision for credit losses | 21,768 | 22,334 | 67,965 | 84,068 | |||||||||||||||||||
| Net interest income after provision for credit losses | 545,242 | 480,249 | 1,572,213 | 1,353,319 | |||||||||||||||||||
| Non-interest income | |||||||||||||||||||||||
| Wealth management | 37,188 | 37,224 | 108,051 | 107,452 | |||||||||||||||||||
| Mortgage banking | 24,451 | 15,974 | 68,150 | 72,761 | |||||||||||||||||||
| Service charges on deposit accounts | 19,825 | 16,430 | 58,689 | 46,787 | |||||||||||||||||||
| Gains on investment securities, net | 2,972 | 3,189 | 6,818 | 233 | |||||||||||||||||||
| Fees from covered call options | 5,619 | 988 | 14,689 | 7,891 | |||||||||||||||||||
| Trading gains (losses), net | 172 | (130) | 259 | 617 | |||||||||||||||||||
| Operating lease income, net | 15,466 | 15,335 | 45,919 | 43,383 | |||||||||||||||||||
| Other | 25,134 | 24,137 | 68,975 | 95,750 | |||||||||||||||||||
| Total non-interest income | 130,827 | 113,147 | 371,550 | 374,874 | |||||||||||||||||||
| Non-interest expense | |||||||||||||||||||||||
| Salaries and employee benefits | 219,668 | 211,261 | 650,735 | 604,975 | |||||||||||||||||||
| Software and equipment | 35,027 | 31,574 | 106,266 | 88,536 | |||||||||||||||||||
| Operating lease equipment | 10,409 | 10,518 | 31,637 | 32,035 | |||||||||||||||||||
| Occupancy, net | 20,809 | 19,945 | 61,815 | 58,616 | |||||||||||||||||||
| Data processing | 11,329 | 9,984 | 34,713 | 28,779 | |||||||||||||||||||
| Advertising and marketing | 19,027 | 18,239 | 50,060 | 48,715 | |||||||||||||||||||
| Professional fees | 7,465 | 9,783 | 25,752 | 29,303 | |||||||||||||||||||
| Amortization of other acquisition-related intangible assets | 5,196 | 4,042 | 16,394 | 6,322 | |||||||||||||||||||
| FDIC insurance | 11,418 | 10,512 | 33,315 | 35,478 | |||||||||||||||||||
| Other real estate owned expense, net | 262 | (938) | 1,410 | (805) | |||||||||||||||||||
| Other | 39,418 | 35,767 | 115,482 | 102,231 | |||||||||||||||||||
| Total non-interest expense | 380,028 | 360,687 | 1,127,579 | 1,034,185 | |||||||||||||||||||
| Income before taxes | 296,041 | 232,709 | 816,184 | 694,008 | |||||||||||||||||||
| Income tax expense | 79,787 | 62,708 | 215,364 | 184,325 | |||||||||||||||||||
| Net income | $ | 216,254 | $ | 170,001 | $ | 600,820 | $ | 509,683 | |||||||||||||||
| Preferred stock dividends | 13,295 | 6,991 | 27,277 | 20,973 | |||||||||||||||||||
| Preferred stock redemption | 14,046 | — | 14,046 | — | |||||||||||||||||||
| Net income applicable to common shares | $ | 188,913 | $ | 163,010 | $ | 559,497 | $ | 488,710 | |||||||||||||||
| Net income per common share—Basic | $ | 2.82 | $ | 2.51 | $ | 8.37 | $ | 7.79 | |||||||||||||||
| Net income per common share—Diluted | $ | 2.78 | $ | 2.47 | $ | 8.25 | $ | 7.67 | |||||||||||||||
| Cash dividends declared per common share | $ | 0.50 | $ | 0.45 | $ | 1.50 | $ | 1.35 | |||||||||||||||
| Weighted average common shares outstanding | 66,952 | 64,888 | 66,871 | 62,743 | |||||||||||||||||||
| Dilutive potential common shares | 1,028 | 1,053 | 945 | 934 | |||||||||||||||||||
| Average common shares and dilutive common shares | 67,980 | 65,941 | 67,816 | 63,677 | |||||||||||||||||||
| Three Months Ended | Nine Months Ended | ||||||||||||||||||||||
| (In thousands) | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | |||||||||||||||||||
| Net income | $ | 216,254 | $ | 170,001 | $ | 600,820 | $ | 509,683 | |||||||||||||||
| Unrealized gains on available-for-sale securities | |||||||||||||||||||||||
| Before tax | 75,521 | 168,166 | 155,712 | 69,510 | |||||||||||||||||||
| Tax effect | (19,635) | (43,688) | (40,485) | (17,594) | |||||||||||||||||||
| Net of tax | 55,886 | 124,478 | 115,227 | 51,916 | |||||||||||||||||||
| Reclassification of net gains (losses) on available-for-sale securities included in net income | |||||||||||||||||||||||
| Before tax | 269 | 45 | (119) | 1,223 | |||||||||||||||||||
| Tax effect | (70) | (6) | 31 | (318) | |||||||||||||||||||
| Net of tax | 199 | 39 | (88) | 905 | |||||||||||||||||||
| Reclassification of amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale | |||||||||||||||||||||||
| Before tax | 10 | 14 | 31 | 78 | |||||||||||||||||||
| Tax effect | (3) | (4) | (8) | (21) | |||||||||||||||||||
| Net of tax | 7 | 10 | 23 | 57 | |||||||||||||||||||
| Net unrealized gains on available-for-sale securities | 55,680 | 124,429 | 115,292 | 50,954 | |||||||||||||||||||
| Unrealized gains on derivative instruments | |||||||||||||||||||||||
| Before tax | 4,280 | 124,848 | 92,317 | 31,914 | |||||||||||||||||||
| Tax effect | (1,112) | (32,460) | (24,002) | (7,879) | |||||||||||||||||||
| Net unrealized gains on derivative instruments | 3,168 | 92,388 | 68,315 | 24,035 | |||||||||||||||||||
| Foreign currency adjustment | |||||||||||||||||||||||
| Before tax | (8,997) | 3,884 | 12,123 | (7,323) | |||||||||||||||||||
| Tax effect | 1,574 | (680) | (2,203) | 1,388 | |||||||||||||||||||
| Net foreign currency adjustment | (7,423) | 3,204 | 9,920 | (5,935) | |||||||||||||||||||
| Total other comprehensive income | 51,425 | 220,021 | 193,527 | 69,054 | |||||||||||||||||||
| Comprehensive income | $ | 267,679 | $ | 390,022 | $ | 794,347 | $ | 578,737 | |||||||||||||||
WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED) | |||||||||||||||||||||||||||||||||||||||||
| (Dollars in thousands, except per share data) | Preferred stock | Common stock | Surplus | Treasury stock | Retained earnings | Accumulated other comprehensive loss | Total shareholders’ equity | ||||||||||||||||||||||||||||||||||
Balance at June 30, 2024 | $ | 412,500 | $ | 61,825 | $ | 1,964,645 | $ | (5,760) | $ | 3,615,616 | $ | (512,198) | $ | 5,536,628 | |||||||||||||||||||||||||||
| Net income | — | — | — | — | 170,001 | — | 170,001 | ||||||||||||||||||||||||||||||||||
| Other comprehensive income, net of tax | — | — | — | — | — | 220,021 | 220,021 | ||||||||||||||||||||||||||||||||||
Cash dividends declared on common stock, $0.45 per share | — | — | — | — | (29,911) | — | (29,911) | ||||||||||||||||||||||||||||||||||
Dividends on Series D preferred stock, $0.41 per share and Series E preferred stock, $429.69 per share | — | — | — | — | (6,991) | — | (6,991) | ||||||||||||||||||||||||||||||||||
| Stock-based compensation | — | — | 9,461 | — | — | — | 9,461 | ||||||||||||||||||||||||||||||||||
| Common stock issued for: | |||||||||||||||||||||||||||||||||||||||||
| Acquisition of Macatawa Bank Corporation | — | 4,702 | 494,537 | — | — | — | 499,239 | ||||||||||||||||||||||||||||||||||
| Restricted stock awards | — | 10 | (10) | (338) | — | — | (338) | ||||||||||||||||||||||||||||||||||
| Employee stock purchase plan | — | 9 | 788 | — | — | — | 797 | ||||||||||||||||||||||||||||||||||
| Director compensation plan | — | — | 807 | — | — | — | 807 | ||||||||||||||||||||||||||||||||||
| Balance at September 30, 2024 | $ | 412,500 | $ | 66,546 | $ | 2,470,228 | $ | (6,098) | $ | 3,748,715 | $ | (292,177) | $ | 6,399,714 | |||||||||||||||||||||||||||
| Balance at January 1, 2024 | $ | 412,500 | $ | 61,269 | $ | 1,943,806 | $ | (2,217) | $ | 3,345,399 | $ | (361,231) | $ | 5,399,526 | |||||||||||||||||||||||||||
| Net income | — | — | — | — | 509,683 | — | 509,683 | ||||||||||||||||||||||||||||||||||
| Other comprehensive income, net of tax | — | — | — | — | — | 69,054 | 69,054 | ||||||||||||||||||||||||||||||||||
Cash dividends declared on common stock, $1.35 per share | — | — | — | — | (85,394) | — | (85,394) | ||||||||||||||||||||||||||||||||||
Dividends on Series D preferred stock, $1.23 per share and Series E preferred stock, $1,289.07 per share | — | — | — | — | (20,973) | — | (20,973) | ||||||||||||||||||||||||||||||||||
| Stock-based compensation | — | — | 27,568 | — | — | — | 27,568 | ||||||||||||||||||||||||||||||||||
| Common stock issued for: | |||||||||||||||||||||||||||||||||||||||||
| Acquisition of Macatawa Bank Corporation | — | 4,702 | 494,537 | — | — | — | 499,239 | ||||||||||||||||||||||||||||||||||
| Exercise of stock options | — | 1 | 24 | — | — | — | 25 | ||||||||||||||||||||||||||||||||||
| Restricted stock awards | — | 533 | (529) | (3,881) | — | — | (3,877) | ||||||||||||||||||||||||||||||||||
| Employee stock purchase plan | — | 26 | 2,414 | — | — | — | 2,440 | ||||||||||||||||||||||||||||||||||
| Director compensation plan | — | 15 | 2,408 | — | — | — | 2,423 | ||||||||||||||||||||||||||||||||||
| Balance at September 30, 2024 | $ | 412,500 | $ | 66,546 | $ | 2,470,228 | $ | (6,098) | $ | 3,748,715 | $ | (292,177) | $ | 6,399,714 | |||||||||||||||||||||||||||
Balance at June 30, 2025 | $ | 837,500 | $ | 67,025 | $ | 2,495,637 | $ | (9,156) | $ | 4,200,923 | $ | (366,233) | $ | 7,225,696 | |||||||||||||||||||||||||||
| Net income | — | — | — | — | 216,254 | — | 216,254 | ||||||||||||||||||||||||||||||||||
| Other comprehensive income, net of tax | — | — | — | — | — | 51,425 | 51,425 | ||||||||||||||||||||||||||||||||||
Cash dividends declared on common stock, $0.50 per share | — | — | — | — | (33,469) | — | (33,469) | ||||||||||||||||||||||||||||||||||
Dividends on Series F preferred stock, $782.03 per share | — | — | — | — | (13,295) | — | (13,295) | ||||||||||||||||||||||||||||||||||
| Redemption of Series D and Series E preferred stock | (412,500) | — | 14,046 | — | (14,046) | — | (412,500) | ||||||||||||||||||||||||||||||||||
| Stock-based compensation | — | — | 10,071 | — | — | — | 10,071 | ||||||||||||||||||||||||||||||||||
| Issuance of Series F Preferred Stock | — | — | (64) | — | — | — | (64) | ||||||||||||||||||||||||||||||||||
| Common stock issued for: | |||||||||||||||||||||||||||||||||||||||||
| Restricted stock awards | — | 10 | (16) | 6 | — | — | — | ||||||||||||||||||||||||||||||||||
| Employee stock purchase plan | — | 7 | 839 | — | — | — | 846 | ||||||||||||||||||||||||||||||||||
| Director compensation plan | — | — | 793 | — | — | — | 793 | ||||||||||||||||||||||||||||||||||
| Balance at September 30, 2025 | $ | 425,000 | $ | 67,042 | $ | 2,521,306 | $ | (9,150) | $ | 4,356,367 | $ | (314,808) | $ | 7,045,757 | |||||||||||||||||||||||||||
| Balance at January 1, 2025 | $ | 412,500 | $ | 66,560 | $ | 2,482,561 | $ | (6,153) | $ | 3,897,164 | $ | (508,335) | $ | 6,344,297 | |||||||||||||||||||||||||||
| Net income | — | — | — | — | 600,820 | — | 600,820 | ||||||||||||||||||||||||||||||||||
| Other comprehensive income, net of tax | — | — | — | — | — | 193,527 | 193,527 | ||||||||||||||||||||||||||||||||||
Cash dividends declared on common stock, $1.50 per share | — | — | — | — | (100,294) | — | (100,294) | ||||||||||||||||||||||||||||||||||
Dividends on Series D preferred stock, $0.82 per share, Series E preferred stock, $859.38 per share and Series F preferred stock, $782.03 per share | — | — | — | — | (27,277) | — | (27,277) | ||||||||||||||||||||||||||||||||||
| Redemption of Series D and Series E preferred stock | (412,500) | — | 14,046 | — | (14,046) | — | (412,500) | ||||||||||||||||||||||||||||||||||
| Stock-based compensation | — | — | 30,646 | — | — | — | 30,646 | ||||||||||||||||||||||||||||||||||
| Issuance of Series F Preferred Stock | 425,000 | — | (10,852) | — | — | — | 414,148 | ||||||||||||||||||||||||||||||||||
| Common stock issued for: | |||||||||||||||||||||||||||||||||||||||||
| Exercise of stock options | — | 5 | 215 | — | — | — | 220 | ||||||||||||||||||||||||||||||||||
| Restricted stock awards | — | 435 | (441) | (2,997) | — | — | (3,003) | ||||||||||||||||||||||||||||||||||
| Employee stock purchase plan | — | 23 | 2,588 | — | — | — | 2,611 | ||||||||||||||||||||||||||||||||||
| Director compensation plan | — | 19 | 2,543 | — | — | — | 2,562 | ||||||||||||||||||||||||||||||||||
| Balance at September 30, 2025 | $ | 425,000 | $ | 67,042 | $ | 2,521,306 | $ | (9,150) | $ | 4,356,367 | $ | (314,808) | $ | 7,045,757 | |||||||||||||||||||||||||||
| Nine Months Ended | |||||||||||
| (In thousands) | September 30, 2025 | September 30, 2024 | |||||||||
| Operating Activities: | |||||||||||
| Net income | $ | 600,820 | $ | 509,683 | |||||||
| Adjustments to reconcile net income to net cash provided by operating activities | |||||||||||
| Provision for credit losses | 67,965 | 84,068 | |||||||||
| Depreciation, amortization and accretion, net | 88,905 | 70,884 | |||||||||
| Stock-based compensation expense | 30,646 | 27,568 | |||||||||
| Accretion of discount on securities, net | (4,412) | (1,380) | |||||||||
| Accretion of discount and deferred fees on loans, net | (15,092) | (11,876) | |||||||||
| Mortgage servicing rights fair value changes | 29,684 | 26,106 | |||||||||
| Non-designated derivatives fair value changes, net | (9,065) | 54,507 | |||||||||
| Originations and purchases of mortgage loans held-for-sale | (1,785,392) | (1,964,576) | |||||||||
| Early buy-out exercises of mortgage loans held-for-sale guaranteed by U.S. government agencies, net of subsequent paydowns or payoffs | (15,773) | (22,558) | |||||||||
| Proceeds from sales of mortgage loans held-for-sale | 1,785,096 | 1,824,513 | |||||||||
| Bank owned life insurance (“BOLI”) gains | (4,644) | (4,519) | |||||||||
| Decrease in trading securities, net | 4,072 | 1,235 | |||||||||
| Decrease (increase) in brokerage customer receivables, net | 18,102 | (6,070) | |||||||||
| Gains on mortgage loans sold | (49,990) | (47,978) | |||||||||
| Gains on premium financing receivables sold | — | (4,575) | |||||||||
| Gains on investment securities, net, and dividend reinvestment on equity securities | (6,818) | (233) | |||||||||
| Losses (gains) on sales of premises and equipment, net | 418 | (93) | |||||||||
| Losses (gains) on sales and fair value adjustments of other real estate owned, net | 816 | (1,234) | |||||||||
| Decrease (increase) in accrued interest receivable and other assets, net | 59,739 | (46,711) | |||||||||
| Decrease in accrued interest payable and other liabilities, net | (136,388) | (256,022) | |||||||||
| Net Cash Provided by Operating Activities | 658,689 | 230,739 | |||||||||
| Investing Activities: | |||||||||||
| Proceeds from calls and sales of available-for-sale securities | 705,703 | 1,218,695 | |||||||||
| Proceeds from payments and maturities of available-for-sale securities | 402,735 | 360,773 | |||||||||
| Proceeds from payments, maturities and calls of held-to-maturity securities | 174,383 | 178,553 | |||||||||
| Proceeds from sales of equity securities with readily determinable fair value | 226,542 | 51,792 | |||||||||
| Proceeds from sales and capital distributions of equity securities without readily determinable fair value | — | 2,226 | |||||||||
| Purchases of available-for-sale securities | (3,040,628) | (1,116,875) | |||||||||
| Purchases of equity securities with readily determinable fair value | (63,413) | (33,322) | |||||||||
| Purchases of equity securities without readily determinable fair value | (1,682) | (6,933) | |||||||||
| Purchases of Federal Home Loan Bank and Federal Reserve Bank stock, net | (1,348) | (61,905) | |||||||||
| (Contributions to) distributions from investments in partnerships, net | (13,422) | 2,586 | |||||||||
| Net cash received in business combinations | — | 531,308 | |||||||||
| Proceeds from sales of premium financing receivables, net | — | 627,450 | |||||||||
| Proceeds from sales of other real estate owned | — | 11,481 | |||||||||
| Decrease (increase) in interest-bearing deposits with banks, net | 994,409 | (1,566,241) | |||||||||
| Increase in loans, net | (4,017,366) | (4,361,365) | |||||||||
| Redemption of BOLI | — | 304 | |||||||||
| Purchases of premises and equipment, net | (26,921) | (66,457) | |||||||||
| Net Cash Used for Investing Activities | (4,661,008) | (4,227,930) | |||||||||
| Financing Activities: | |||||||||||
| Increase in deposit accounts, net | 4,199,032 | 3,697,621 | |||||||||
| Increase in other borrowings, net | 33,753 | 7,352 | |||||||||
| Increase in Federal Home Loan Bank advances, net | — | 845,238 | |||||||||
| Proceeds from the issuance of preferred stock, net | 414,148 | — | |||||||||
| Redemption of preferred stock | (412,500) | — | |||||||||
| Repayment of subordinated notes | — | (140,000) | |||||||||
| Issuance of common shares resulting from the exercise of stock options, employee stock purchase plan and director compensation plan | 5,387 | 4,892 | |||||||||
| Common stock repurchases for tax withholdings related to stock-based compensation | (2,997) | (3,881) | |||||||||
| Dividends paid | (127,571) | (106,367) | |||||||||
| Net Cash Provided by Financing Activities | 4,109,252 | 4,304,855 | |||||||||
| Net Increase in Cash and Cash Equivalents | 106,933 | 307,664 | |||||||||
| Cash and Cash Equivalents at Beginning of Period | 458,536 | 423,464 | |||||||||
| Cash and Cash Equivalents at End of Period | $ | 565,469 | $ | 731,128 | |||||||
| September 30, 2025 | |||||||||||||||||||||||
| (In thousands) | Amortized Cost | Gross Unrealized Gains | Gross Unrealized Losses | Fair Value | |||||||||||||||||||
| Available-for-sale securities | |||||||||||||||||||||||
| U.S. Treasury | $ | 7,997 | $ | 39 | $ | — | $ | 8,036 | |||||||||||||||
| U.S. government agencies | 50,000 | — | (3,489) | 46,511 | |||||||||||||||||||
| Municipal | 194,723 | 1,673 | (2,152) | 194,244 | |||||||||||||||||||
| Corporate notes: | |||||||||||||||||||||||
| Financial issuers | 82,000 | — | (2,628) | 79,372 | |||||||||||||||||||
| Other | 1,000 | — | — | 1,000 | |||||||||||||||||||
Mortgage-backed: (1) | |||||||||||||||||||||||
| Residential mortgage-backed securities | 4,761,918 | 17,519 | (419,975) | 4,359,462 | |||||||||||||||||||
| Commercial (multi-family) mortgage-backed securities | 233,127 | 347 | (5,136) | 228,338 | |||||||||||||||||||
| Collateralized mortgage obligations | 371,584 | 2,373 | (16,796) | 357,161 | |||||||||||||||||||
| Total available-for-sale securities | $ | 5,702,349 | $ | 21,951 | $ | (450,176) | $ | 5,274,124 | |||||||||||||||
| Held-to-maturity securities | |||||||||||||||||||||||
| U.S. government agencies | $ | 313,540 | $ | — | $ | (59,178) | $ | 254,362 | |||||||||||||||
| Municipal | 155,770 | 458 | (2,283) | 153,945 | |||||||||||||||||||
Mortgage-backed: (1) | |||||||||||||||||||||||
| Residential mortgage-backed securities | 2,724,442 | 5,421 | (505,165) | 2,224,698 | |||||||||||||||||||
| Commercial (multi-family) mortgage-backed securities | 6,315 | 65 | (102) | 6,278 | |||||||||||||||||||
| Collateralized mortgage obligations | 188,223 | 980 | (17,400) | 171,803 | |||||||||||||||||||
| Corporate notes | 50,511 | 26 | (653) | 49,884 | |||||||||||||||||||
| Total held-to-maturity securities | $ | 3,438,801 | $ | 6,950 | $ | (584,781) | $ | 2,860,970 | |||||||||||||||
| Less: Allowance for credit losses | (395) | ||||||||||||||||||||||
| Held-to-maturity securities, net of allowance for credit losses | $ | 3,438,406 | |||||||||||||||||||||
| Equity securities with readily determinable fair value | $ | 60,843 | $ | 6,520 | $ | (3,918) | $ | 63,445 | |||||||||||||||
| December 31, 2024 | |||||||||||||||||||||||
| Amortized Cost | Gross Unrealized Gains | Gross Unrealized Losses | Fair Value | ||||||||||||||||||||
| (In thousands) | |||||||||||||||||||||||
| Available-for-sale securities | |||||||||||||||||||||||
| U.S. Treasury | $ | 37,858 | $ | 49 | $ | — | $ | 37,907 | |||||||||||||||
| U.S. government agencies | 50,000 | — | (5,055) | 44,945 | |||||||||||||||||||
| Municipal | 188,405 | 528 | (4,340) | 184,593 | |||||||||||||||||||
| Corporate notes: | |||||||||||||||||||||||
| Financial issuers | 83,997 | — | (3,828) | 80,169 | |||||||||||||||||||
| Other | 1,000 | — | (7) | 993 | |||||||||||||||||||
Mortgage-backed: (1) | |||||||||||||||||||||||
| Residential mortgage-backed securities | 4,106,641 | 284 | (553,287) | 3,553,638 | |||||||||||||||||||
| Commercial (multi-family) mortgage-backed securities | 19,064 | 23 | (755) | 18,332 | |||||||||||||||||||
| Collateralized mortgage obligations | 238,574 | 1,187 | (18,856) | 220,905 | |||||||||||||||||||
| Total available-for-sale securities | $ | 4,725,539 | $ | 2,071 | $ | (586,128) | $ | 4,141,482 | |||||||||||||||
| Held-to-maturity securities | |||||||||||||||||||||||
| U.S. government agencies | $ | 313,539 | $ | — | $ | (69,127) | $ | 244,412 | |||||||||||||||
| Municipal | 161,016 | 243 | (5,290) | 155,969 | |||||||||||||||||||
Mortgage-backed: (1) | |||||||||||||||||||||||
| Residential Mortgage-backed securities | 2,864,927 | — | (605,014) | 2,259,913 | |||||||||||||||||||
| Commercial (multi-family) mortgage-backed securities | 6,364 | — | (252) | 6,112 | |||||||||||||||||||
| Collateralized mortgage obligations | 211,023 | 815 | (22,683) | 189,155 | |||||||||||||||||||
| Corporate notes | 56,851 | 8 | (1,870) | 54,989 | |||||||||||||||||||
| Total held-to-maturity securities | $ | 3,613,720 | $ | 1,066 | $ | (704,236) | $ | 2,910,550 | |||||||||||||||
| Less: Allowance for credit losses | (457) | ||||||||||||||||||||||
| Held-to-maturity securities, net of allowance for credit losses | $ | 3,613,263 | |||||||||||||||||||||
| Equity securities with readily determinable fair value | $ | 220,758 | $ | 2,905 | $ | (8,251) | $ | 215,412 | |||||||||||||||
| September 30, 2024 | |||||||||||||||||||||||
| Amortized Cost | Gross Unrealized Gains | Gross Unrealized Losses | Fair Value | ||||||||||||||||||||
| (In thousands) | |||||||||||||||||||||||
| Available-for-sale securities | |||||||||||||||||||||||
| U.S. Treasury | $ | 98,151 | $ | 172 | $ | — | $ | 98,323 | |||||||||||||||
| U.S. government agencies | 50,000 | — | (2,346) | 47,654 | |||||||||||||||||||
| Municipal | 201,701 | 1,392 | (2,881) | 200,212 | |||||||||||||||||||
| Corporate notes: | |||||||||||||||||||||||
| Financial issuers | 83,997 | — | (4,880) | 79,117 | |||||||||||||||||||
| Other | 1,000 | — | — | 1,000 | |||||||||||||||||||
Mortgage-backed: (1) | |||||||||||||||||||||||
| Residential mortgage-backed securities | 3,694,382 | 8,143 | (394,844) | 3,307,681 | |||||||||||||||||||
| Commercial (multi-family) mortgage-backed securities | 19,088 | 308 | (255) | 19,141 | |||||||||||||||||||
| Collateralized mortgage obligations | 172,524 | 1,537 | (14,957) | 159,104 | |||||||||||||||||||
| Total available-for-sale securities | $ | 4,320,843 | $ | 11,552 | $ | (420,163) | $ | 3,912,232 | |||||||||||||||
| Held-to-maturity securities | |||||||||||||||||||||||
| U.S. government agencies | $ | 314,578 | $ | — | $ | (56,198) | $ | 258,380 | |||||||||||||||
| Municipal | 165,141 | 488 | (2,910) | 162,719 | |||||||||||||||||||
Mortgage-backed: (1) | |||||||||||||||||||||||
| Residential mortgage-backed securities | 2,915,018 | 5,541 | (485,115) | 2,435,444 | |||||||||||||||||||
| Commercial (multi-family) mortgage-backed securities | 6,379 | 40 | (126) | 6,293 | |||||||||||||||||||
| Collateralized mortgage obligations | 219,758 | 1,457 | (17,303) | 203,912 | |||||||||||||||||||
| Corporate notes | 57,025 | — | (1,953) | 55,072 | |||||||||||||||||||
| Total held-to-maturity securities | $ | 3,677,899 | $ | 7,526 | $ | (563,605) | $ | 3,121,820 | |||||||||||||||
| Less: Allowance for credit losses | (479) | ||||||||||||||||||||||
| Held-to-maturity securities, net of allowance for credit losses | $ | 3,677,420 | |||||||||||||||||||||
| Equity securities with readily determinable fair value | $ | 127,700 | $ | 4,313 | $ | (6,703) | $ | 125,310 | |||||||||||||||
| Continuous unrealized losses existing for less than 12 months | Continuous unrealized losses existing for greater than 12 months | Total | |||||||||||||||||||||||||||||||||
| (In thousands) | Fair Value | Unrealized Losses | Fair Value | Unrealized Losses | Fair Value | Unrealized Losses | |||||||||||||||||||||||||||||
| Available-for-sale securities | |||||||||||||||||||||||||||||||||||
| U.S. Treasury | $ | — | $ | — | $ | — | $ | — | $ | — | $ | — | |||||||||||||||||||||||
| U.S. government agencies | — | — | 46,511 | (3,489) | 46,511 | (3,489) | |||||||||||||||||||||||||||||
| Municipal | 27,180 | (276) | 45,372 | (1,876) | 72,552 | (2,152) | |||||||||||||||||||||||||||||
| Corporate notes: | |||||||||||||||||||||||||||||||||||
| Financial issuers | — | — | 79,372 | (2,628) | 79,372 | (2,628) | |||||||||||||||||||||||||||||
| Other | — | — | 1,000 | (0) | 1,000 | (0) | |||||||||||||||||||||||||||||
Mortgage-backed: (1) | |||||||||||||||||||||||||||||||||||
| Residential mortgage-backed securities | 746,985 | (3,625) | 2,174,994 | (416,350) | 2,921,979 | (419,975) | |||||||||||||||||||||||||||||
| Commercial (multi-family) mortgage-backed securities | 179,691 | (4,574) | 7,594 | (562) | 187,285 | (5,136) | |||||||||||||||||||||||||||||
| Collateralized mortgage obligations | 31,196 | (102) | 63,054 | (16,694) | 94,250 | (16,796) | |||||||||||||||||||||||||||||
| Total available-for-sale securities | $ | 985,052 | $ | (8,577) | $ | 2,417,897 | $ | (441,599) | $ | 3,402,949 | $ | (450,176) | |||||||||||||||||||||||
| Three months ended September 30, | Nine months ended September 30, | ||||||||||||||||||||||
| (In thousands) | 2025 | 2024 | 2025 | 2024 | |||||||||||||||||||
| Realized gains on investment securities | $ | 3,563 | $ | 222 | $ | 3,846 | $ | 2,582 | |||||||||||||||
| Realized losses on investment securities | (2,689) | (144) | (3,313) | (273) | |||||||||||||||||||
| Net realized gains on investment securities | 874 | 78 | 533 | 2,309 | |||||||||||||||||||
| Unrealized gains on equity securities with readily determinable fair value | 3,352 | 3,126 | 8,689 | 4,234 | |||||||||||||||||||
| Unrealized losses on equity securities with readily determinable fair value | (684) | (15) | (741) | (2,579) | |||||||||||||||||||
| Net unrealized gains on equity securities with readily determinable fair value | 2,668 | 3,111 | 7,948 | 1,655 | |||||||||||||||||||
| Downward adjustments of equity securities without readily determinable fair values | — | — | (20) | — | |||||||||||||||||||
| Impairment of equity securities without readily determinable fair values | (570) | — | (1,643) | (3,731) | |||||||||||||||||||
| Adjustment and impairment, net, of equity securities without readily determinable fair values | (570) | — | (1,663) | (3,731) | |||||||||||||||||||
| Gains on investment securities, net | $ | 2,972 | $ | 3,189 | $ | 6,818 | $ | 233 | |||||||||||||||
| September 30, 2025 | December 31, 2024 | September 30, 2024 | |||||||||||||||||||||||||||||||||
| (In thousands) | Amortized Cost | Fair Value | Amortized Cost | Fair Value | Amortized Cost | Fair Value | |||||||||||||||||||||||||||||
| Available-for-sale securities | |||||||||||||||||||||||||||||||||||
| Due in one year or less | $ | 58,284 | $ | 58,315 | $ | 89,578 | $ | 89,392 | $ | 150,539 | $ | 150,627 | |||||||||||||||||||||||
| Due in one to five years | 160,939 | 159,081 | 157,883 | 153,325 | 168,856 | 164,650 | |||||||||||||||||||||||||||||
| Due in five to ten years | 89,505 | 87,359 | 89,125 | 84,240 | 91,620 | 89,220 | |||||||||||||||||||||||||||||
| Due after ten years | 26,992 | 24,408 | 24,674 | 21,650 | 23,834 | 21,809 | |||||||||||||||||||||||||||||
| Mortgage-backed | 5,366,629 | 4,944,961 | 4,364,279 | 3,792,875 | 3,885,994 | 3,485,926 | |||||||||||||||||||||||||||||
| Total available-for-sale securities | $ | 5,702,349 | $ | 5,274,124 | $ | 4,725,539 | $ | 4,141,482 | $ | 4,320,843 | $ | 3,912,232 | |||||||||||||||||||||||
| Held-to-maturity securities | |||||||||||||||||||||||||||||||||||
| Due in one year or less | $ | 44,853 | $ | 44,288 | $ | 18,929 | $ | 18,658 | $ | 12,026 | $ | 11,883 | |||||||||||||||||||||||
| Due in one to five years | 81,277 | 81,174 | 110,897 | 108,056 | 110,330 | 108,416 | |||||||||||||||||||||||||||||
| Due in five to ten years | 91,067 | 87,541 | 71,846 | 70,277 | 84,580 | 83,918 | |||||||||||||||||||||||||||||
| Due after ten years | 302,624 | 245,188 | 329,734 | 258,379 | 329,808 | 271,954 | |||||||||||||||||||||||||||||
| Mortgage-backed | 2,918,980 | 2,402,779 | 3,082,314 | 2,455,180 | 3,141,155 | 2,645,649 | |||||||||||||||||||||||||||||
| Total held-to-maturity securities | $ | 3,438,801 | $ | 2,860,970 | $ | 3,613,720 | $ | 2,910,550 | $ | 3,677,899 | $ | 3,121,820 | |||||||||||||||||||||||
| Less: Allowance for credit losses | (395) | (457) | (479) | ||||||||||||||||||||||||||||||||
| Held-to-maturity securities, net of allowance for credit losses | $ | 3,438,406 | $ | 3,613,263 | $ | 3,677,420 | |||||||||||||||||||||||||||||
| September 30, | December 31, | September 30, | |||||||||||||||
| (Dollars in thousands) | 2025 | 2024 | 2024 | ||||||||||||||
| Balance: | |||||||||||||||||
| Commercial | $ | 16,544,342 | $ | 15,574,551 | $ | 15,247,693 | |||||||||||
| Commercial real estate | 13,619,207 | 12,903,944 | 12,793,417 | ||||||||||||||
| Home equity | 484,202 | 445,028 | 427,043 | ||||||||||||||
| Residential real estate | 4,143,870 | 3,612,765 | 3,388,038 | ||||||||||||||
| Premium finance receivables—property & casualty | 8,366,292 | 7,272,042 | 7,131,681 | ||||||||||||||
| Premium finance receivables—life insurance | 8,758,553 | 8,147,145 | 7,996,899 | ||||||||||||||
| Consumer and other | 147,016 | 99,562 | 82,676 | ||||||||||||||
| Total loans, net of unearned income | $ | 52,063,482 | $ | 48,055,037 | $ | 47,067,447 | |||||||||||
| Mix: | |||||||||||||||||
| Commercial | 32 | % | 32 | % | 33 | % | |||||||||||
| Commercial real estate | 26 | 27 | 27 | ||||||||||||||
| Home equity | 1 | 1 | 1 | ||||||||||||||
| Residential real estate | 8 | 8 | 7 | ||||||||||||||
| Premium finance receivables—property & casualty | 16 | 15 | 15 | ||||||||||||||
| Premium finance receivables—life insurance | 17 | 17 | 17 | ||||||||||||||
| Consumer and other | 0 | 0 | 0 | ||||||||||||||
| Total loans, net of unearned income | 100 | % | 100 | % | 100 | % | |||||||||||
| As of September 30, 2025 | 90+ days and still accruing | 60-89 days past due | 30-59 days past due | ||||||||||||||||||||||||||||||||
| (In thousands) | Nonaccrual | Current | Total Loans | ||||||||||||||||||||||||||||||||
| Loan Balances (includes PCD): | |||||||||||||||||||||||||||||||||||
| Commercial | $ | 66,577 | $ | — | $ | 12,190 | $ | 36,136 | $ | 16,429,439 | $ | 16,544,342 | |||||||||||||||||||||||
| Commercial real estate | |||||||||||||||||||||||||||||||||||
| Construction and development | 3,227 | — | 630 | 40,276 | 2,614,020 | 2,658,153 | |||||||||||||||||||||||||||||
| Non-construction | 24,975 | — | 13,489 | 42,779 | 10,879,811 | 10,961,054 | |||||||||||||||||||||||||||||
| Home equity | 1,295 | — | 246 | 2,294 | 480,367 | 484,202 | |||||||||||||||||||||||||||||
| Residential real estate, excluding early buy-out loans | 28,942 | — | 8,829 | 95 | 3,981,180 | 4,019,046 | |||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | 24,512 | 13,006 | 23,527 | 38,133 | 8,267,114 | 8,366,292 | |||||||||||||||||||||||||||||
| Premium finance receivables—life insurance | — | — | 34,016 | 34,506 | 8,690,031 | 8,758,553 | |||||||||||||||||||||||||||||
| Consumer and other | 38 | 60 | 49 | 159 | 146,710 | 147,016 | |||||||||||||||||||||||||||||
| Total loans, net of unearned income, excluding early buy-out loans | $ | 149,566 | $ | 13,066 | $ | 92,976 | $ | 194,378 | $ | 51,488,672 | $ | 51,938,658 | |||||||||||||||||||||||
Early buy-out loans guaranteed by U.S. government agencies (1) | — | 47,374 | — | — | 77,450 | 124,824 | |||||||||||||||||||||||||||||
| Total loans, net of unearned income | $ | 149,566 | $ | 60,440 | $ | 92,976 | $ | 194,378 | $ | 51,566,122 | $ | 52,063,482 | |||||||||||||||||||||||
| As of December 31, 2024 | 90+ days and still accruing | 60-89 days past due | 30-59 days past due | ||||||||||||||||||||||||||||||||
| (In thousands) | Nonaccrual | Current | Total Loans | ||||||||||||||||||||||||||||||||
| Loan Balances (includes PCD): | |||||||||||||||||||||||||||||||||||
| Commercial | $ | 73,490 | $ | 104 | $ | 54,844 | $ | 92,551 | $ | 15,353,562 | $ | 15,574,551 | |||||||||||||||||||||||
| Commercial real estate | |||||||||||||||||||||||||||||||||||
| Construction and development | 2,282 | — | 1,339 | 4,634 | 2,425,826 | 2,434,081 | |||||||||||||||||||||||||||||
| Non-construction | 18,760 | — | 9,182 | 26,132 | 10,415,789 | 10,469,863 | |||||||||||||||||||||||||||||
| Home equity | 1,117 | — | 1,233 | 2,148 | 440,530 | 445,028 | |||||||||||||||||||||||||||||
| Residential real estate, excluding early buy-out loans | 23,762 | — | 5,708 | 18,917 | 3,407,622 | 3,456,009 | |||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | 28,797 | 16,031 | 19,042 | 68,219 | 7,139,953 | 7,272,042 | |||||||||||||||||||||||||||||
| Premium finance receivables—life insurance | 6,431 | — | 72,963 | 36,405 | 8,031,346 | 8,147,145 | |||||||||||||||||||||||||||||
| Consumer and other | 2 | 47 | 59 | 882 | 98,572 | 99,562 | |||||||||||||||||||||||||||||
| Total loans, net of unearned income, excluding early buy-out loans | $ | 154,641 | $ | 16,182 | $ | 164,370 | $ | 249,888 | $ | 47,313,200 | $ | 47,898,281 | |||||||||||||||||||||||
Early buy-out loans guaranteed by U.S. government agencies (1) | — | 33,952 | 618 | 2,335 | 119,851 | 156,756 | |||||||||||||||||||||||||||||
| Total loans, net of unearned income | $ | 154,641 | $ | 50,134 | $ | 164,988 | $ | 252,223 | $ | 47,433,051 | $ | 48,055,037 | |||||||||||||||||||||||
| As of September 30, 2024 | 90+ days and still accruing | 60-89 days past due | 30-59 days past due | ||||||||||||||||||||||||||||||||
| (In thousands) | Nonaccrual | Current | Total Loans | ||||||||||||||||||||||||||||||||
| Loan Balances (includes PCD): | |||||||||||||||||||||||||||||||||||
| Commercial | $ | 63,826 | $ | 20 | $ | 32,560 | $ | 46,057 | $ | 15,105,230 | $ | 15,247,693 | |||||||||||||||||||||||
| Commercial real estate | |||||||||||||||||||||||||||||||||||
| Construction and development | 2,284 | — | 757 | 1,798 | 2,398,851 | 2,403,690 | |||||||||||||||||||||||||||||
| Non-construction | 39,787 | 225 | 12,682 | 46,548 | 10,290,485 | 10,389,727 | |||||||||||||||||||||||||||||
| Home equity | 1,122 | — | 1,035 | 2,580 | 422,306 | 427,043 | |||||||||||||||||||||||||||||
| Residential real estate, excluding early buy-out loans | 17,959 | — | 6,364 | 2,160 | 3,226,166 | 3,252,649 | |||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | 36,079 | 18,235 | 18,740 | 30,204 | 7,028,423 | 7,131,681 | |||||||||||||||||||||||||||||
| Premium finance receivables—life insurance | — | — | 10,902 | 74,432 | 7,911,565 | 7,996,899 | |||||||||||||||||||||||||||||
| Consumer and other | 2 | 148 | 22 | 264 | 82,240 | 82,676 | |||||||||||||||||||||||||||||
| Total loans, net of unearned income, excluding early buy-out loans | $ | 161,059 | $ | 18,628 | $ | 83,062 | $ | 204,043 | $ | 46,465,266 | $ | 46,932,058 | |||||||||||||||||||||||
Early buy-out loans guaranteed by U.S. government agencies (1) | — | 43,358 | 150 | — | 91,881 | 135,389 | |||||||||||||||||||||||||||||
| Total loans, net of unearned income | $ | 161,059 | $ | 61,986 | $ | 83,212 | $ | 204,043 | $ | 46,557,147 | $ | 47,067,447 | |||||||||||||||||||||||
| Year of Origination | Revolving | Total | |||||||||||||||||||||||||||||||||
| (In thousands) | 2025 | 2024 | 2023 | 2022 | 2021 | Prior | Revolving | to Term | Loans | ||||||||||||||||||||||||||
| Loan Balances: | |||||||||||||||||||||||||||||||||||
| Commercial | |||||||||||||||||||||||||||||||||||
| Pass | $ | 2,829,487 | $ | 2,846,915 | $ | 1,744,488 | $ | 1,266,672 | $ | 831,328 | $ | 1,108,613 | $ | 5,310,722 | $ | 40,053 | $ | 15,978,278 | |||||||||||||||||
| Special mention | 11,668 | 41,624 | 46,403 | 18,943 | 31,703 | 38,400 | 128,153 | 360 | 317,254 | ||||||||||||||||||||||||||
| Substandard accrual | 2,436 | 16,847 | 26,199 | 39,289 | 35,639 | 22,204 | 38,008 | 1,611 | 182,233 | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | 951 | 4,454 | 7,778 | 36,977 | 10,359 | 3,906 | 900 | 1,252 | 66,577 | ||||||||||||||||||||||||||
| Total commercial, industrial and other | $ | 2,844,542 | $ | 2,909,840 | $ | 1,824,868 | $ | 1,361,881 | $ | 909,029 | $ | 1,173,123 | $ | 5,477,783 | $ | 43,276 | $ | 16,544,342 | |||||||||||||||||
| Construction and development | |||||||||||||||||||||||||||||||||||
| Pass | $ | 207,055 | $ | 736,531 | $ | 619,287 | $ | 604,281 | $ | 73,736 | $ | 107,992 | $ | 15,039 | $ | 894 | $ | 2,364,815 | |||||||||||||||||
| Special mention | — | — | 29,645 | 194,759 | 17,908 | 15,800 | — | — | 258,112 | ||||||||||||||||||||||||||
| Substandard accrual | — | — | 12,656 | — | — | 15,445 | 3,898 | — | 31,999 | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | — | — | 1,001 | 1,321 | — | 905 | — | — | 3,227 | ||||||||||||||||||||||||||
| Total construction and development | $ | 207,055 | $ | 736,531 | $ | 662,589 | $ | 800,361 | $ | 91,644 | $ | 140,142 | $ | 18,937 | $ | 894 | $ | 2,658,153 | |||||||||||||||||
| Non-construction | |||||||||||||||||||||||||||||||||||
| Pass | $ | 1,436,193 | $ | 1,313,159 | $ | 1,314,216 | $ | 1,748,779 | $ | 1,290,468 | $ | 3,262,179 | $ | 225,790 | $ | 1,692 | $ | 10,592,476 | |||||||||||||||||
| Special mention | 2,080 | 1,189 | 63,480 | 17,694 | 29,072 | 35,492 | 1,414 | — | 150,421 | ||||||||||||||||||||||||||
| Substandard accrual | — | 18,799 | 1,256 | 68,472 | 51,608 | 52,211 | 836 | — | 193,182 | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | — | — | 1,605 | 305 | — | 23,065 | — | — | 24,975 | ||||||||||||||||||||||||||
| Total non-construction | $ | 1,438,273 | $ | 1,333,147 | $ | 1,380,557 | $ | 1,835,250 | $ | 1,371,148 | $ | 3,372,947 | $ | 228,040 | $ | 1,692 | $ | 10,961,054 | |||||||||||||||||
| Home equity | |||||||||||||||||||||||||||||||||||
| Pass | $ | — | $ | 236 | $ | 68 | $ | 353 | $ | 291 | $ | 13,067 | $ | 446,524 | $ | 8,237 | $ | 468,776 | |||||||||||||||||
| Special mention | — | 42 | — | 402 | — | 2,303 | 6,187 | — | 8,934 | ||||||||||||||||||||||||||
| Substandard accrual | — | — | 15 | 19 | 98 | 2,979 | 2,086 | — | 5,197 | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | — | — | — | 88 | 132 | 1,075 | — | — | 1,295 | ||||||||||||||||||||||||||
| Total home equity | $ | — | $ | 278 | $ | 83 | $ | 862 | $ | 521 | $ | 19,424 | $ | 454,797 | $ | 8,237 | $ | 484,202 | |||||||||||||||||
| Residential real estate | |||||||||||||||||||||||||||||||||||
| Early buy-out loans guaranteed by U.S. government agencies | $ | 192 | $ | 4,551 | $ | 7,545 | $ | 5,280 | $ | 6,229 | $ | 101,027 | $ | — | $ | — | $ | 124,824 | |||||||||||||||||
| Pass | 833,494 | 795,118 | 427,935 | 762,583 | 719,435 | 420,044 | — | — | 3,958,609 | ||||||||||||||||||||||||||
| Special mention | — | 2,027 | 5,793 | 4,745 | 1,808 | 6,822 | — | — | 21,195 | ||||||||||||||||||||||||||
| Substandard accrual | 60 | 136 | 913 | 3,799 | 1,833 | 3,559 | — | — | 10,300 | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | — | 1,214 | 5,463 | 7,772 | 6,475 | 8,018 | — | — | 28,942 | ||||||||||||||||||||||||||
| Total residential real estate | $ | 833,746 | $ | 803,046 | $ | 447,649 | $ | 784,179 | $ | 735,780 | $ | 539,470 | $ | — | $ | — | $ | 4,143,870 | |||||||||||||||||
| Premium finance receivables - property and casualty | |||||||||||||||||||||||||||||||||||
| Pass | $ | 8,030,161 | $ | 180,763 | $ | 3,906 | $ | 1,113 | $ | 1,268 | $ | — | $ | — | $ | — | $ | 8,217,211 | |||||||||||||||||
| Special mention | 102,653 | 4,466 | 9 | — | — | — | — | — | 107,128 | ||||||||||||||||||||||||||
| Substandard accrual | 15,393 | 2,044 | — | 3 | 1 | — | — | — | 17,441 | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | 13,542 | 10,941 | 25 | 3 | 1 | — | — | — | 24,512 | ||||||||||||||||||||||||||
| Total premium finance receivables - property and casualty | $ | 8,161,749 | $ | 198,214 | $ | 3,940 | $ | 1,119 | $ | 1,270 | $ | — | $ | — | $ | — | $ | 8,366,292 | |||||||||||||||||
Premium finance receivables - life (1) | |||||||||||||||||||||||||||||||||||
| Pass | $ | 437,422 | $ | 720,916 | $ | 541,345 | $ | 711,083 | $ | 1,057,431 | $ | 5,290,356 | $ | — | $ | — | $ | 8,758,553 | |||||||||||||||||
| Special mention | — | — | — | — | — | — | — | — | — | ||||||||||||||||||||||||||
| Substandard accrual | — | — | — | — | — | — | — | — | — | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | — | — | — | — | — | — | — | — | — | ||||||||||||||||||||||||||
| Total premium finance receivables - life | $ | 437,422 | $ | 720,916 | $ | 541,345 | $ | 711,083 | $ | 1,057,431 | $ | 5,290,356 | $ | — | $ | — | $ | 8,758,553 | |||||||||||||||||
| Consumer and other | |||||||||||||||||||||||||||||||||||
| Pass | $ | 5,180 | $ | 2,524 | $ | 1,858 | $ | 330 | $ | 622 | $ | 63,148 | $ | 72,998 | $ | — | $ | 146,660 | |||||||||||||||||
| Special mention | 25 | 38 | 32 | 81 | — | 109 | 12 | — | 297 | ||||||||||||||||||||||||||
| Substandard accrual | — | 2 | — | — | — | 14 | 5 | — | 21 | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | — | 2 | — | — | — | 36 | — | — | 38 | ||||||||||||||||||||||||||
| Total consumer and other | $ | 5,205 | $ | 2,566 | $ | 1,890 | $ | 411 | $ | 622 | $ | 63,307 | $ | 73,015 | $ | — | $ | 147,016 | |||||||||||||||||
| Total loans | |||||||||||||||||||||||||||||||||||
| Early buy-out loans guaranteed by U.S. government agencies | $ | 192 | $ | 4,551 | $ | 7,545 | $ | 5,280 | $ | 6,229 | $ | 101,027 | $ | — | $ | — | $ | 124,824 | |||||||||||||||||
| Pass | 13,778,992 | 6,596,162 | 4,653,103 | 5,095,194 | 3,974,579 | 10,265,399 | 6,071,073 | 50,876 | 50,485,378 | ||||||||||||||||||||||||||
| Special mention | 116,426 | 49,386 | 145,362 | 236,624 | 80,491 | 98,926 | 135,766 | 360 | 863,341 | ||||||||||||||||||||||||||
| Substandard accrual | 17,889 | 37,828 | 41,039 | 111,582 | 89,179 | 96,412 | 44,833 | 1,611 | 440,373 | ||||||||||||||||||||||||||
| Substandard nonaccrual/doubtful | 14,493 | 16,611 | 15,872 | 46,466 | 16,967 | 37,005 | 900 | 1,252 | 149,566 | ||||||||||||||||||||||||||
| Total loans | $ | 13,927,992 | $ | 6,704,538 | $ | 4,862,921 | $ | 5,495,146 | $ | 4,167,445 | $ | 10,598,769 | $ | 6,252,572 | $ | 54,099 | $ | 52,063,482 | |||||||||||||||||
| Gross write offs | |||||||||||||||||||||||||||||||||||
| Three months ended September 30, 2025 | $ | 7,305 | $ | 494 | $ | 1,457 | $ | 4,748 | $ | 12,046 | $ | 2,796 | $ | — | $ | — | $ | 28,846 | |||||||||||||||||
| Nine months ended September 30, 2025 | $ | 8,709 | $ | 15,297 | $ | 5,246 | $ | 8,129 | $ | 14,193 | $ | 13,216 | $ | — | $ | — | $ | 64,790 | |||||||||||||||||
| As of September 30, 2025 | Year of Origination | Total | ||||||||||||||||||||||||
| (In thousands) | 2025 | 2024 | 2023 | 2022 | 2021 | Prior | Balance | |||||||||||||||||||
| Amortized Cost Balances: | ||||||||||||||||||||||||||
| U.S. government agencies | ||||||||||||||||||||||||||
| 1-4 internal grade | $ | — | $ | — | $ | — | $ | 135,000 | $ | 147,827 | $ | 30,713 | $ | 313,540 | ||||||||||||
| 5-7 internal grade | — | — | — | — | — | — | — | |||||||||||||||||||
| 8-10 internal grade | — | — | — | — | — | — | — | |||||||||||||||||||
| Total U.S. government agencies | $ | — | $ | — | $ | — | $ | 135,000 | $ | 147,827 | $ | 30,713 | $ | 313,540 | ||||||||||||
| Municipal | ||||||||||||||||||||||||||
| 1-4 internal grade | $ | — | $ | — | $ | 4,092 | $ | 1,028 | $ | 6,742 | $ | 141,784 | $ | 153,646 | ||||||||||||
| 5-7 internal grade | — | — | — | — | — | 2,124 | 2,124 | |||||||||||||||||||
| 8-10 internal grade | — | — | — | — | — | — | — | |||||||||||||||||||
| Total municipal | $ | — | $ | — | $ | 4,092 | $ | 1,028 | $ | 6,742 | $ | 143,908 | $ | 155,770 | ||||||||||||
| Mortgage-backed securities | ||||||||||||||||||||||||||
| 1-4 internal grade | $ | — | $ | — | $ | 296,804 | $ | 496,580 | $ | 2,125,596 | $ | — | $ | 2,918,980 | ||||||||||||
| 5-7 internal grade | — | — | — | — | — | — | — | |||||||||||||||||||
| 8-10 internal grade | — | — | — | — | — | — | — | |||||||||||||||||||
| Total mortgage-backed securities | $ | — | $ | — | $ | 296,804 | $ | 496,580 | $ | 2,125,596 | $ | — | $ | 2,918,980 | ||||||||||||
| Corporate notes | ||||||||||||||||||||||||||
| 1-4 internal grade | $ | — | $ | — | $ | — | $ | 14,972 | $ | — | $ | 35,539 | $ | 50,511 | ||||||||||||
| 5-7 internal grade | — | — | — | — | — | — | — | |||||||||||||||||||
| 8-10 internal grade | — | — | — | — | — | — | — | |||||||||||||||||||
| Total corporate notes | $ | — | $ | — | $ | — | $ | 14,972 | $ | — | $ | 35,539 | $ | 50,511 | ||||||||||||
| Total held-to-maturity securities | $ | 3,438,801 | ||||||||||||||||||||||||
| Less: Allowance for credit losses | (395) | |||||||||||||||||||||||||
| Held-to-maturity securities, net of allowance for credit losses | $ | 3,438,406 | ||||||||||||||||||||||||
| September 30, | December 31, | September 30, | ||||||||||||||||||
| (In thousands) | 2025 | 2024 | 2024 | |||||||||||||||||
| Allowance for loan losses | $ | 386,622 | $ | 364,017 | $ | 360,279 | ||||||||||||||
| Allowance for unfunded lending-related commitments losses | 67,569 | 72,586 | 75,435 | |||||||||||||||||
| Allowance for loan losses and unfunded lending-related commitments losses | 454,191 | 436,603 | 435,714 | |||||||||||||||||
| Allowance for held-to-maturity securities losses | 395 | 457 | 479 | |||||||||||||||||
| Allowance for credit losses | $ | 454,586 | $ | 437,060 | $ | 436,193 | ||||||||||||||
| Three months ended September 30, 2025 | Commercial Real Estate | Home Equity | Residential Real Estate | Premium Finance Receivables | Consumer and Other | Total Loans | |||||||||||||||||||||||||||||||||||
| (In thousands) | Commercial | ||||||||||||||||||||||||||||||||||||||||
| Allowance for credit losses at beginning of period | $ | 194,568 | $ | 224,358 | $ | 9,221 | $ | 11,455 | $ | 16,612 | $ | 849 | $ | 457,063 | |||||||||||||||||||||||||||
| Other adjustments | — | — | — | — | (88) | — | (88) | ||||||||||||||||||||||||||||||||||
| Charge-offs | (21,597) | (144) | (27) | (26) | (6,878) | (174) | (28,846) | ||||||||||||||||||||||||||||||||||
| Recoveries | 1,449 | 241 | 104 | 1 | 2,459 | 37 | 4,291 | ||||||||||||||||||||||||||||||||||
| Provision for credit losses - Other | 15,056 | 6,022 | (69) | 583 | (156) | 335 | 21,771 | ||||||||||||||||||||||||||||||||||
| Allowance for credit losses at period end | $ | 189,476 | $ | 230,477 | $ | 9,229 | $ | 12,013 | $ | 11,949 | $ | 1,047 | $ | 454,191 | |||||||||||||||||||||||||||
| By measurement method: | |||||||||||||||||||||||||||||||||||||||||
| Individually measured | $ | 29,747 | $ | 9,688 | $ | — | $ | 60 | $ | — | $ | 3 | $ | 39,498 | |||||||||||||||||||||||||||
| Collectively measured | 159,729 | 220,789 | 9,229 | 11,953 | 11,949 | 1,044 | 414,693 | ||||||||||||||||||||||||||||||||||
| Loans at period end | |||||||||||||||||||||||||||||||||||||||||
| Individually measured | $ | 66,576 | $ | 28,203 | $ | 1,295 | $ | 28,854 | $ | — | $ | 38 | $ | 124,966 | |||||||||||||||||||||||||||
| Collectively measured | 16,477,766 | 13,591,004 | 482,907 | 3,985,423 | 17,124,845 | 146,978 | 51,808,923 | ||||||||||||||||||||||||||||||||||
| Loans held at fair value | — | — | — | 129,593 | — | 129,593 | |||||||||||||||||||||||||||||||||||
| Three months ended September 30, 2024 | Commercial | Commercial Real Estate | Home Equity | Residential Real Estate | Premium Finance Receivables | Consumer and Other | Total Loans | ||||||||||||||||||||||||||||||||||
| (In thousands) | |||||||||||||||||||||||||||||||||||||||||
| Allowance for credit losses at beginning of period | $ | 181,991 | $ | 223,728 | $ | 7,242 | $ | 8,773 | $ | 14,746 | $ | 589 | $ | 437,069 | |||||||||||||||||||||||||||
| Other adjustments | — | — | — | — | 30 | — | 30 | ||||||||||||||||||||||||||||||||||
| Charge-offs | (22,975) | (95) | — | — | (7,794) | (154) | (31,018) | ||||||||||||||||||||||||||||||||||
| Recoveries | 649 | 30 | 101 | 5 | 3,477 | 21 | 4,283 | ||||||||||||||||||||||||||||||||||
| Provision for credit losses - Other | 7,128 | (4,162) | 134 | 268 | 3,284 | 147 | 6,799 | ||||||||||||||||||||||||||||||||||
| Provision for credit losses - Day 1 on non-PCD assets acquired during the period | 2,967 | 10,540 | 1,344 | 638 | — | 58 | 15,547 | ||||||||||||||||||||||||||||||||||
| Initial allowance for credit losses recognized on PCD assets acquired during the period | 1,838 | 1,103 | 2 | 61 | — | — | 3,004 | ||||||||||||||||||||||||||||||||||
| Allowance for credit losses at period end | $ | 171,598 | $ | 231,144 | $ | 8,823 | $ | 9,745 | $ | 13,743 | $ | 661 | $ | 435,714 | |||||||||||||||||||||||||||
| By measurement method: | |||||||||||||||||||||||||||||||||||||||||
| Individually measured | $ | 21,573 | $ | 5,958 | $ | 50 | $ | 48 | $ | — | $ | 1 | $ | 27,630 | |||||||||||||||||||||||||||
| Collectively measured | 150,025 | 225,186 | 8,773 | 9,697 | 13,743 | 660 | 408,084 | ||||||||||||||||||||||||||||||||||
| Loans at period end | |||||||||||||||||||||||||||||||||||||||||
| Individually measured | $ | 63,826 | $ | 42,071 | $ | 1,122 | $ | 17,565 | $ | — | $ | 2 | $ | 124,586 | |||||||||||||||||||||||||||
| Collectively measured | 15,183,867 | 12,751,346 | 425,921 | 3,232,435 | 15,128,580 | 82,674 | 46,804,823 | ||||||||||||||||||||||||||||||||||
| Loans held at fair value | — | — | — | 138,038 | — | — | 138,038 | ||||||||||||||||||||||||||||||||||
| Nine months ended September 30, 2025 | Commercial Real Estate | Home Equity | Residential Real Estate | Premium Finance Receivables | Consumer and Other | Total Loans | |||||||||||||||||||||||||||||||||||
| (In thousands) | Commercial | ||||||||||||||||||||||||||||||||||||||||
| Allowance for credit losses at beginning of period | $ | 175,837 | $ | 222,856 | $ | 8,943 | $ | 10,335 | $ | 17,820 | $ | 812 | $ | 436,603 | |||||||||||||||||||||||||||
| Other adjustments | — | — | — | — | 96 | — | 96 | ||||||||||||||||||||||||||||||||||
| Charge-offs | (37,467) | (6,309) | (138) | (26) | (20,350) | (500) | (64,790) | ||||||||||||||||||||||||||||||||||
| Recoveries | 4,124 | 263 | 350 | 139 | 9,281 | 98 | 14,255 | ||||||||||||||||||||||||||||||||||
| Provision for credit losses - Other | 46,982 | 13,667 | 74 | 1,565 | 5,102 | 637 | 68,027 | ||||||||||||||||||||||||||||||||||
| Allowance for credit losses at period end | $ | 189,476 | $ | 230,477 | $ | 9,229 | $ | 12,013 | $ | 11,949 | $ | 1,047 | $ | 454,191 | |||||||||||||||||||||||||||
| Nine months ended September 30, 2024 | Commercial Real Estate | Home Equity | Residential Real Estate | Premium Finance Receivables | Consumer and Other | Total Loans | |||||||||||||||||||||||||||||||||||
| (In thousands) | Commercial | ||||||||||||||||||||||||||||||||||||||||
| Allowance for credit losses at beginning of period | $ | 169,604 | $ | 223,853 | $ | 7,116 | $ | 13,133 | $ | 13,069 | $ | 490 | $ | 427,265 | |||||||||||||||||||||||||||
| Other adjustments | — | — | — | — | (20) | — | (20) | ||||||||||||||||||||||||||||||||||
| Charge-offs | (43,774) | (21,090) | (74) | (61) | (24,218) | (398) | (89,615) | ||||||||||||||||||||||||||||||||||
| Recoveries | 2,078 | 151 | 165 | 15 | 8,667 | 68 | 11,144 | ||||||||||||||||||||||||||||||||||
| Provision for credit losses - Other | 38,885 | 16,587 | 270 | (4,041) | 16,245 | 443 | 68,389 | ||||||||||||||||||||||||||||||||||
| Provision for credit losses - Day 1 on non-PCD assets acquired during the period | 2,967 | 10,540 | 1,344 | 638 | — | 58 | 15,547 | ||||||||||||||||||||||||||||||||||
| Initial allowance for credit losses recognized on PCD assets acquired during the period | 1,838 | 1,103 | 2 | 61 | — | — | 3,004 | ||||||||||||||||||||||||||||||||||
| Allowance for credit losses at period end | $ | 171,598 | $ | 231,144 | $ | 8,823 | $ | 9,745 | $ | 13,743 | $ | 661 | $ | 435,714 | |||||||||||||||||||||||||||
Three Months Ended September 30, 2025 (Dollars in thousands) | Total | Percentage of Total Class of Loan | Extension of Term | Reduction of Interest Rate | Interest Only Payments | Delay in Contractual Payments | Extension of Term and Reduction of Interest Rate | |||||||||||||||||||||||||||||||||||||
| Commercial | $ | 4,791 | 0.1 | % | $ | 4,464 | $ | — | $ | — | $ | — | $ | 327 | ||||||||||||||||||||||||||||||
| Commercial real estate | ||||||||||||||||||||||||||||||||||||||||||||
| Construction and development | — | — | — | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Non-construction | 196 | 0.0 | 196 | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Home equity | — | — | — | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Residential real estate | 392 | 0.0 | 287 | — | — | — | 105 | |||||||||||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | — | — | — | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Total loans | $ | 5,379 | 0.0 | % | $ | 4,947 | $ | — | $ | — | $ | — | $ | 432 | ||||||||||||||||||||||||||||||
Three Months Ended September 30, 2024 (Dollars in thousands) | Total | Percentage of Total Class of Loan | Extension of Term | Reduction of Interest Rate | Interest Only Payments | Delay in Contractual Payments | Extension of Term and Reduction of Interest Rate | |||||||||||||||||||||||||||||||||||||
| Commercial | $ | 1,469 | 0.0 | % | $ | 1,240 | $ | 42 | $ | 17 | $ | — | $ | 170 | ||||||||||||||||||||||||||||||
| Commercial real estate - Non-construction | 192 | 0.0 | 192 | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Residential real estate | — | — | — | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | 1,548 | 0.0 | 30 | 1,457 | — | — | 61 | |||||||||||||||||||||||||||||||||||||
| Total loans | $ | 3,209 | 0.0 | % | $ | 1,462 | $ | 1,499 | $ | 17 | $ | — | $ | 231 | ||||||||||||||||||||||||||||||
Nine Months Ended September 30, 2025 (Dollars in thousands) | Total | Percentage of Total Class of Loan | Extension of Term | Reduction of Interest Rate | Interest Only Payments | Delay in Contractual Payments | Extension of Term and Reduction of Interest Rate | |||||||||||||||||||||||||||||||||||||
| Commercial | $ | 15,370 | 0.2 | % | $ | 14,917 | $ | 9 | $ | — | $ | — | $ | 444 | ||||||||||||||||||||||||||||||
| Commercial real estate | ||||||||||||||||||||||||||||||||||||||||||||
| Construction and development | — | — | — | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Non-construction | 196 | 0.0 | 196 | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Home equity | — | — | — | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Residential real estate | 1,524 | 0.0 | 447 | 276 | — | — | 801 | |||||||||||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | 865 | 0.0 | 865 | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Total loans | $ | 17,955 | 0.0 | $ | 16,425 | $ | 285 | $ | — | $ | — | $ | 1,245 | |||||||||||||||||||||||||||||||
| Weighted Average Magnitude of Modifications: | ||||||||||||||||||||||||||
Nine Months Ended September 30, 2025 (Dollars in thousands) | Total | Duration of Extension of Term (months) | Reduction of Interest Rate (bps) | Duration of Delay in Contractual Payments (months) | ||||||||||||||||||||||
| Commercial | $ | 15,370 | 7 | 155 | — | |||||||||||||||||||||
| Commercial real estate | ||||||||||||||||||||||||||
| Construction and development | — | — | — | — | ||||||||||||||||||||||
| Non-construction | 196 | 6 | — | — | ||||||||||||||||||||||
| Home equity | — | — | — | — | ||||||||||||||||||||||
| Residential real estate | 1,524 | 11 | 148 | — | ||||||||||||||||||||||
| Premium finance receivables—property & casualty | 865 | 12 | — | — | ||||||||||||||||||||||
| Total loans | $ | 17,955 | 8 | 150 | — | |||||||||||||||||||||
Nine Months Ended September 30, 2024 (Dollars in thousands) | Total | Percentage of Total Class of Loan | Extension of Term | Reduction of Interest Rate | Interest Only Payments | Delay in Contractual Payments | Extension of Term and Reduction of Interest Rate | |||||||||||||||||||||||||||||||||||||
| Commercial | $ | 4,687 | 0.0 | % | $ | 4,195 | $ | 42 | $ | 17 | $ | 97 | $ | 336 | ||||||||||||||||||||||||||||||
| Commercial real estate - Non-construction | 1,662 | 0.0 | 486 | — | 319 | 857 | — | |||||||||||||||||||||||||||||||||||||
| Home equity | 89 | 0.0 | 89 | — | — | — | — | |||||||||||||||||||||||||||||||||||||
| Residential real estate | 282 | 0.0 | 114 | 168 | — | — | — | |||||||||||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | 1,554 | 0.0 | 33 | 1,460 | — | — | 61 | |||||||||||||||||||||||||||||||||||||
| Total loans | $ | 8,274 | 0.0 | % | $ | 4,917 | $ | 1,670 | $ | 336 | $ | 954 | $ | 397 | ||||||||||||||||||||||||||||||
| (Dollars in thousands) | For the Twelve Months Ended September 30, 2025 | Three Months Ended September 30, 2025 | Nine Months Ended September 30, 2025 | For the Twelve Months Ended September 30, 2024 | Three Months Ended September 30, 2024 | Nine Months Ended September 30, 2024 | |||||||||||||||||||||||||||||
| Total | Payments in Default (1) | Payments in Default (1) | Total | Payments in Default (1) | Payments in Default (1) | ||||||||||||||||||||||||||||||
| Commercial | $ | 20,725 | $ | 28 | $ | 142 | $ | 6,757 | $ | 42 | $ | 1,826 | |||||||||||||||||||||||
| Commercial real estate | |||||||||||||||||||||||||||||||||||
| Construction and development | — | — | — | 2,504 | — | — | |||||||||||||||||||||||||||||
| Non-construction | 243 | 196 | 196 | 2,933 | — | 923 | |||||||||||||||||||||||||||||
| Home equity | — | — | — | 588 | — | 203 | |||||||||||||||||||||||||||||
| Residential real estate | 1,524 | 224 | 920 | 282 | — | 541 | |||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | 865 | — | 865 | 1,632 | 47 | 61 | |||||||||||||||||||||||||||||
| Total loans | $ | 23,357 | $ | 448 | $ | 2,123 | $ | 14,696 | $ | 89 | $ | 3,554 | |||||||||||||||||||||||
| (In thousands) | December 31, 2024 | Goodwill Acquired | Impairment Loss | Goodwill Adjustments | September 30, 2025 | ||||||||||||||||||||||||
| Community banking | $ | 687,754 | $ | — | $ | — | $ | — | $ | 687,754 | |||||||||||||||||||
| Specialty finance | 37,193 | — | — | 697 | 37,890 | ||||||||||||||||||||||||
| Wealth management | 71,995 | — | — | — | 71,995 | ||||||||||||||||||||||||
| Total | $ | 796,942 | $ | — | $ | — | $ | 697 | $ | 797,639 | |||||||||||||||||||
| (In thousands) | September 30, 2025 | December 31, 2024 | September 30, 2024 | ||||||||||||||
| Community banking segment: | |||||||||||||||||
| Core deposit intangibles with finite lives: | |||||||||||||||||
| Gross carrying amount | $ | 158,106 | $ | 158,106 | $ | 154,506 | |||||||||||
| Accumulated amortization | (72,179) | (56,784) | (51,358) | ||||||||||||||
| Net carrying amount | $ | 85,927 | $ | 101,322 | $ | 103,148 | |||||||||||
| Trademark with indefinite lives: | |||||||||||||||||
| Carrying amount | 13,800 | 13,800 | 13,800 | ||||||||||||||
| Total net carrying amount | $ | 99,727 | $ | 115,122 | $ | 116,948 | |||||||||||
| Specialty finance segment: | |||||||||||||||||
| Customer list intangibles with finite lives: | |||||||||||||||||
| Gross carrying amount | $ | 1,960 | $ | 1,959 | $ | 1,962 | |||||||||||
| Accumulated amortization | (1,924) | (1,881) | (1,871) | ||||||||||||||
| Net carrying amount | $ | 36 | $ | 78 | $ | 91 | |||||||||||
| Wealth management segment: | |||||||||||||||||
| Customer list and other intangibles with finite lives: | |||||||||||||||||
| Gross carrying amount | $ | 26,630 | $ | 26,630 | $ | 26,630 | |||||||||||
| Accumulated amortization | (21,096) | (20,140) | (19,803) | ||||||||||||||
| Net carrying amount | $ | 5,534 | $ | 6,490 | $ | 6,827 | |||||||||||
| Total acquisition-related intangible assets: | |||||||||||||||||
| Gross carrying amount | $ | 200,496 | $ | 200,495 | $ | 196,898 | |||||||||||
| Accumulated amortization | (95,199) | (78,805) | (73,032) | ||||||||||||||
| Total other acquisition-related intangible assets, net | $ | 105,297 | $ | 121,690 | $ | 123,866 | |||||||||||
| Estimated amortization | |||||
| Actual in nine months ended September 30, 2025 | $ | 16,394 | |||
Estimated remaining in 2025 | 5,003 | ||||
Estimated—2026 | 18,830 | ||||
Estimated—2027 | 16,333 | ||||
Estimated—2028 | 13,908 | ||||
Estimated—2029 | 11,536 | ||||
| Three Months Ended | Nine Months Ended | |||||||||||||||||||||||||
| September 30, | September 30, | September 30, | September 30, | |||||||||||||||||||||||
| (In thousands) | 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||||
| Fair value at beginning of the period | $ | 193,061 | $ | 204,610 | $ | 203,788 | $ | 192,456 | ||||||||||||||||||
| Additions from loans sold with servicing retained | 5,829 | 6,357 | 16,834 | 19,959 | ||||||||||||||||||||||
| Estimate of changes in fair value due to: | ||||||||||||||||||||||||||
| Payoffs, paydowns and repurchases | (5,604) | (7,328) | (15,856) | (17,248) | ||||||||||||||||||||||
| Changes in valuation inputs or assumptions | (2,348) | (17,331) | (13,828) | (8,859) | ||||||||||||||||||||||
| Fair value at end of the period | $ | 190,938 | $ | 186,308 | $ | 190,938 | $ | 186,308 | ||||||||||||||||||
| Unpaid principal balance of mortgage loans serviced for others | $ | 12,524,131 | $ | 12,253,361 | ||||||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | December 31, 2024 | September 30, 2024 | ||||||||||||||
| Balance: | |||||||||||||||||
| Non-interest-bearing | $ | 10,952,146 | $ | 11,410,018 | $ | 10,739,132 | |||||||||||
| NOW and interest-bearing demand deposits | 6,710,919 | 5,865,546 | 5,466,932 | ||||||||||||||
| Wealth management deposits | 1,600,735 | 1,469,064 | 1,303,354 | ||||||||||||||
| Money market | 20,270,382 | 17,975,191 | 17,713,726 | ||||||||||||||
| Savings | 6,758,743 | 6,372,499 | 6,183,249 | ||||||||||||||
| Time certificates of deposit | 10,418,456 | 9,420,031 | 9,998,573 | ||||||||||||||
| Total deposits | $ | 56,711,381 | $ | 52,512,349 | $ | 51,404,966 | |||||||||||
| Mix: | |||||||||||||||||
| Non-interest-bearing | 19 | % | 22 | % | 21 | % | |||||||||||
| NOW and interest-bearing demand deposits | 12 | 11 | 11 | ||||||||||||||
| Wealth management deposits | 3 | 3 | 3 | ||||||||||||||
| Money market | 36 | 34 | 34 | ||||||||||||||
| Savings | 12 | 12 | 12 | ||||||||||||||
| Time certificates of deposit | 18 | 18 | 19 | ||||||||||||||
| Total deposits | 100 | % | 100 | % | 100 | % | |||||||||||
| (In thousands) | September 30, 2025 | December 31, 2024 | September 30, 2024 | ||||||||||||||
| FHLB advances | $ | 3,151,309 | $ | 3,151,309 | $ | 3,171,309 | |||||||||||
| Other borrowings: | |||||||||||||||||
| Notes payable | 121,368 | 142,763 | 149,894 | ||||||||||||||
| Secured borrowings | 401,863 | 334,934 | 439,513 | ||||||||||||||
| Other | 56,097 | 57,106 | 57,636 | ||||||||||||||
| Total other borrowings | 579,328 | 534,803 | 647,043 | ||||||||||||||
| Subordinated notes | 298,536 | 298,283 | 298,188 | ||||||||||||||
| Total FHLB advances, other borrowings and subordinated notes | $ | 4,029,173 | $ | 3,984,395 | $ | 4,116,540 | |||||||||||
| (Dollars in thousands) | Common Securities | Trust Preferred Securities | Junior Subordinated Debentures | Rate Structure (1) | Contractual Rate at 9/30/2025 | Issue Date | Maturity Date | Earliest Redemption Date | |||||||||||||||||||||||||||||||||||||||
| Wintrust Capital Trust III | $ | 774 | $ | 25,000 | $ | 25,774 | S+0.26161+3.25 | 7.83 | % | 04/2003 | 04/2033 | 04/2008 | |||||||||||||||||||||||||||||||||||
| Wintrust Statutory Trust IV | 619 | 20,000 | 20,619 | S+0.26161+2.80 | 7.06 | % | 12/2003 | 12/2033 | 12/2008 | ||||||||||||||||||||||||||||||||||||||
| Wintrust Statutory Trust V | 1,238 | 40,000 | 41,238 | S+0.26161+2.60 | 6.86 | % | 05/2004 | 05/2034 | 06/2009 | ||||||||||||||||||||||||||||||||||||||
| Wintrust Capital Trust VII | 1,550 | 50,000 | 51,550 | S+0.26161+1.95 | 6.25 | % | 12/2004 | 03/2035 | 03/2010 | ||||||||||||||||||||||||||||||||||||||
| Wintrust Capital Trust VIII | 1,238 | 25,000 | 26,238 | S+0.26161+1.45 | 5.71 | % | 08/2005 | 09/2035 | 09/2010 | ||||||||||||||||||||||||||||||||||||||
| Wintrust Capital Trust IX | 1,547 | 50,000 | 51,547 | S+0.26161+1.63 | 5.93 | % | 09/2006 | 09/2036 | 09/2011 | ||||||||||||||||||||||||||||||||||||||
| Northview Capital Trust I | 186 | 6,000 | 6,186 | S+0.26161+3.00 | 7.56 | % | 08/2003 | 11/2033 | 08/2008 | ||||||||||||||||||||||||||||||||||||||
| Town Bankshares Capital Trust I | 186 | 6,000 | 6,186 | S+0.26161+3.00 | 7.56 | % | 08/2003 | 11/2033 | 08/2008 | ||||||||||||||||||||||||||||||||||||||
| First Northwest Capital Trust I | 155 | 5,000 | 5,155 | S+0.26161+3.00 | 7.26 | % | 05/2004 | 05/2034 | 05/2009 | ||||||||||||||||||||||||||||||||||||||
| Suburban Illinois Capital Trust II | 464 | 15,000 | 15,464 | S+0.26161+1.75 | 6.05 | % | 12/2006 | 12/2036 | 12/2011 | ||||||||||||||||||||||||||||||||||||||
| Community Financial Shares Statutory Trust II | 109 | 3,500 | 3,609 | S+0.26161+1.62 | 5.92 | % | 06/2007 | 09/2037 | 06/2012 | ||||||||||||||||||||||||||||||||||||||
| Total | $ | 253,566 | 6.52 | % | |||||||||||||||||||||||||||||||||||||||||||
(In thousands) | Community Banking | Specialty Finance | Wealth Management | Total Operating Segments | Intersegment Eliminations | Consolidated | ||||||||||||||||||||||||||||||||
| Three Months Ended September 30, 2025: | ||||||||||||||||||||||||||||||||||||||
| Interest income | $ | 838,871 | $ | 107,840 | $ | 5,697 | $ | 952,408 | $ | 11,426 | $ | 963,834 | ||||||||||||||||||||||||||
| Interest expense | 386,326 | 10,410 | 88 | 396,824 | — | 396,824 | ||||||||||||||||||||||||||||||||
| Net interest income | 452,545 | 97,430 | 5,609 | 555,584 | 11,426 | 567,010 | ||||||||||||||||||||||||||||||||
| Provision for credit losses | 20,059 | 1,709 | — | 21,768 | — | 21,768 | ||||||||||||||||||||||||||||||||
| Non-interest income | 82,507 | 32,221 | 39,663 | 154,391 | (23,564) | 130,827 | ||||||||||||||||||||||||||||||||
| Non-interest expense: | ||||||||||||||||||||||||||||||||||||||
| Salaries | 97,900 | 16,464 | 9,761 | 124,125 | 498 | 124,623 | ||||||||||||||||||||||||||||||||
| Commissions and incentive compensation | 33,175 | 10,445 | 12,624 | 56,244 | — | 56,244 | ||||||||||||||||||||||||||||||||
| Benefits | 30,577 | 5,775 | 2,449 | 38,801 | — | 38,801 | ||||||||||||||||||||||||||||||||
Other segment expenses (1) | 140,977 | 23,702 | 8,317 | 172,996 | (12,636) | 160,360 | ||||||||||||||||||||||||||||||||
| Total non-interest expense | 302,629 | 56,386 | 33,151 | 392,166 | (12,138) | 380,028 | ||||||||||||||||||||||||||||||||
| Income before taxes | 212,364 | 71,556 | 12,121 | 296,041 | — | 296,041 | ||||||||||||||||||||||||||||||||
| Income tax expense | 57,753 | 18,990 | 3,044 | 79,787 | — | 79,787 | ||||||||||||||||||||||||||||||||
| Net income | $ | 154,611 | $ | 52,566 | $ | 9,077 | $ | 216,254 | $ | — | $ | 216,254 | ||||||||||||||||||||||||||
| Total assets at period end | $ | 56,437,776 | $ | 12,187,079 | $ | 1,004,783 | $ | 69,629,638 | $ | — | $ | 69,629,638 | ||||||||||||||||||||||||||
| Three Months Ended September 30, 2024: | ||||||||||||||||||||||||||||||||||||||
| Interest income | $ | 790,247 | $ | 100,952 | $ | 7,096 | $ | 898,295 | $ | 10,309 | $ | 908,604 | ||||||||||||||||||||||||||
| Interest expense | 393,353 | 12,504 | 164 | 406,021 | — | 406,021 | ||||||||||||||||||||||||||||||||
| Net interest income | 396,894 | 88,448 | 6,932 | 492,274 | 10,309 | 502,583 | ||||||||||||||||||||||||||||||||
| Provision for credit losses | 20,475 | 1,859 | — | 22,334 | — | 22,334 | ||||||||||||||||||||||||||||||||
| Non-interest income | 66,323 | 29,587 | 37,431 | 133,341 | (20,194) | 113,147 | ||||||||||||||||||||||||||||||||
| Non-interest expense: | ||||||||||||||||||||||||||||||||||||||
| Salaries | 93,169 | 15,155 | 10,202 | 118,526 | 445 | 118,971 | ||||||||||||||||||||||||||||||||
| Commissions and incentive compensation | 35,427 | 9,206 | 12,942 | 57,575 | — | 57,575 | ||||||||||||||||||||||||||||||||
| Benefits | 27,448 | 4,888 | 2,379 | 34,715 | — | 34,715 | ||||||||||||||||||||||||||||||||
Other segment expenses (1) | 129,134 | 22,366 | 8,256 | 159,756 | (10,330) | 149,426 | ||||||||||||||||||||||||||||||||
| Total non-interest expense | 285,178 | 51,615 | 33,779 | 370,572 | (9,885) | 360,687 | ||||||||||||||||||||||||||||||||
| Income before taxes | 157,564 | 64,561 | 10,584 | 232,709 | — | 232,709 | ||||||||||||||||||||||||||||||||
| Income tax expense | 42,351 | 17,758 | 2,599 | 62,708 | — | 62,708 | ||||||||||||||||||||||||||||||||
| Net income | $ | 115,213 | $ | 46,803 | $ | 7,985 | $ | 170,001 | $ | — | $ | 170,001 | ||||||||||||||||||||||||||
| Total assets at period end | $ | 51,598,626 | $ | 11,047,585 | $ | 1,142,213 | $ | 63,788,424 | $ | — | $ | 63,788,424 | ||||||||||||||||||||||||||
(In thousands) | Community Banking | Specialty Finance | Wealth Management | Total Operating Segments | Intersegment Eliminations | Consolidated | ||||||||||||||||||||||||||||||||
| Nine Months Ended September 30, 2025: | ||||||||||||||||||||||||||||||||||||||
| Interest income | $ | 2,408,155 | $ | 312,275 | $ | 16,192 | $ | 2,736,622 | $ | 35,085 | $ | 2,771,707 | ||||||||||||||||||||||||||
| Interest expense | 1,099,943 | 31,228 | 358 | 1,131,529 | — | 1,131,529 | ||||||||||||||||||||||||||||||||
| Net interest income | 1,308,212 | 281,047 | 15,834 | 1,605,093 | 35,085 | 1,640,178 | ||||||||||||||||||||||||||||||||
| Provision for credit losses | 62,965 | 5,000 | — | 67,965 | — | 67,965 | ||||||||||||||||||||||||||||||||
| Non-interest income | 231,498 | 96,784 | 112,991 | 441,273 | (69,723) | 371,550 | ||||||||||||||||||||||||||||||||
| Non-interest expense: | ||||||||||||||||||||||||||||||||||||||
| Salaries | 293,388 | 47,864 | 28,968 | 370,220 | 1,494 | 371,714 | ||||||||||||||||||||||||||||||||
| Commissions and incentive compensation | 98,637 | 29,462 | 36,552 | 164,651 | — | 164,651 | ||||||||||||||||||||||||||||||||
| Benefits | 90,058 | 16,399 | 7,913 | 114,370 | — | 114,370 | ||||||||||||||||||||||||||||||||
Other segment expenses (1) | 413,177 | 72,237 | 27,562 | 512,976 | (36,132) | 476,844 | ||||||||||||||||||||||||||||||||
| Total non-interest expense | 895,260 | 165,962 | 100,995 | 1,162,217 | (34,638) | 1,127,579 | ||||||||||||||||||||||||||||||||
| Income before taxes | 581,485 | 206,869 | 27,830 | 816,184 | — | 816,184 | ||||||||||||||||||||||||||||||||
| Income tax expense | 153,471 | 55,214 | 6,679 | 215,364 | — | 215,364 | ||||||||||||||||||||||||||||||||
| Net income | $ | 428,014 | $ | 151,655 | $ | 21,151 | $ | 600,820 | $ | — | $ | 600,820 | ||||||||||||||||||||||||||
| Nine Months Ended September 30, 2024: | ||||||||||||||||||||||||||||||||||||||
| Interest income | $ | 2,207,658 | $ | 303,746 | $ | 23,255 | $ | 2,534,659 | $ | 29,437 | $ | 2,564,096 | ||||||||||||||||||||||||||
| Interest expense | 1,088,247 | 37,825 | 637 | 1,126,709 | — | 1,126,709 | ||||||||||||||||||||||||||||||||
| Net interest income | 1,119,411 | 265,921 | 22,618 | 1,407,950 | 29,437 | 1,437,387 | ||||||||||||||||||||||||||||||||
| Provision for credit losses | 77,192 | 6,876 | — | 84,068 | — | 84,068 | ||||||||||||||||||||||||||||||||
| Non-interest income | 212,578 | 89,221 | 131,521 | 433,320 | (58,446) | 374,874 | ||||||||||||||||||||||||||||||||
| Non-interest expense: | ||||||||||||||||||||||||||||||||||||||
| Salaries | 268,145 | 45,439 | 30,076 | 343,660 | 1,343 | 345,003 | ||||||||||||||||||||||||||||||||
| Commissions and incentive compensation | 96,459 | 26,426 | 37,842 | 160,727 | — | 160,727 | ||||||||||||||||||||||||||||||||
| Benefits | 77,670 | 13,804 | 7,771 | 99,245 | — | 99,245 | ||||||||||||||||||||||||||||||||
Other segment expenses (1) | 366,858 | 67,460 | 25,244 | 459,562 | (30,352) | 429,210 | ||||||||||||||||||||||||||||||||
| Total non-interest expense | 809,132 | 153,129 | 100,933 | 1,063,194 | (29,009) | 1,034,185 | ||||||||||||||||||||||||||||||||
| Income before taxes | 445,665 | 195,137 | 53,206 | 694,008 | — | 694,008 | ||||||||||||||||||||||||||||||||
| Income tax expense | 119,170 | 52,720 | 12,435 | 184,325 | — | 184,325 | ||||||||||||||||||||||||||||||||
| Net income | $ | 326,495 | $ | 142,417 | $ | 40,771 | $ | 509,683 | $ | — | $ | 509,683 | ||||||||||||||||||||||||||
| Derivative Assets | Derivative Liabilities | ||||||||||||||||||||||||||||||||||
| (In thousands) | September 30, 2025 | December 31, 2024 | September 30, 2024 | September 30, 2025 | December 31, 2024 | September 30, 2024 | |||||||||||||||||||||||||||||
| Derivatives designated as hedging instruments under ASC 815: | |||||||||||||||||||||||||||||||||||
| Interest rate derivatives designated as Cash Flow Hedges | $ | 59,667 | $ | 7,329 | $ | 53,402 | $ | 4,950 | $ | 56,084 | $ | 14,522 | |||||||||||||||||||||||
| Interest rate derivatives designated as Fair Value Hedges | 5,633 | 10,001 | 8,069 | 560 | 87 | 351 | |||||||||||||||||||||||||||||
| Total derivatives designated as hedging instruments under ASC 815 | $ | 65,300 | $ | 17,330 | $ | 61,471 | $ | 5,510 | $ | 56,171 | $ | 14,873 | |||||||||||||||||||||||
| Derivatives not designated as hedging instruments under ASC 815: | |||||||||||||||||||||||||||||||||||
| Interest rate derivatives | $ | 136,018 | $ | 177,553 | $ | 185,456 | $ | 133,279 | $ | 183,799 | $ | 180,160 | |||||||||||||||||||||||
| Interest rate lock commitments | 7,149 | 1,950 | 5,143 | — | 18 | 6 | |||||||||||||||||||||||||||||
| Forward commitments to sell mortgage loans | 47 | 1,297 | 31 | 2,654 | 88 | 1,055 | |||||||||||||||||||||||||||||
| Commodity forward contracts | 233 | 766 | 1,647 | 67 | 583 | 1,365 | |||||||||||||||||||||||||||||
| Foreign exchange contracts | 210 | 1,131 | 1,914 | 195 | 1,091 | 1,880 | |||||||||||||||||||||||||||||
| Total derivatives not designated as hedging instruments under ASC 815 | $ | 143,657 | $ | 182,697 | $ | 194,191 | $ | 136,195 | $ | 185,579 | $ | 184,466 | |||||||||||||||||||||||
| Total Derivatives | $ | 208,957 | $ | 200,027 | $ | 255,662 | $ | 141,705 | $ | 241,750 | $ | 199,339 | |||||||||||||||||||||||
| September 30, 2025 | |||||||||||
| Notional | Fair Value | ||||||||||
| (In thousands) | Amount | Asset (Liability) | |||||||||
| Floor at 1-month CME term SOFR: | |||||||||||
Buy 2.500%; matures September 2028 | $ | 200,000 | $ | 896 | |||||||
| Interest Rate Collars at 1-month CME term SOFR: | |||||||||||
Buy 2.750% floor, sell 4.320% cap; matures October 2026 | 500,000 | 172 | |||||||||
Buy 2.000% floor, sell 3.450% cap; matures September 2027 | 1,250,000 | (4,432) | |||||||||
| Interest Rate Swaps at 1-month CME term SOFR: | |||||||||||
Fixed 3.748%; matures December 2025 | 250,000 | (144) | |||||||||
Fixed 3.759%; matures December 2025 | 250,000 | (137) | |||||||||
Fixed 3.680%; matures February 2026 | 250,000 | (194) | |||||||||
Fixed 4.176%; matures March 2026 | 250,000 | 328 | |||||||||
Fixed 3.915%; matures March 2026 | 250,000 | 58 | |||||||||
Fixed 4.450%; matures July 2026 | 250,000 | 1,407 | |||||||||
Fixed 3.515%, matures December 2026 | 250,000 | 60 | |||||||||
Fixed 3.512%; matures December 2026 | 250,000 | 51 | |||||||||
Fixed 3.453%; matures February 2027 | 250,000 | (42) | |||||||||
Fixed 4.150%; matures July 2027 | 250,000 | 3,329 | |||||||||
Fixed 3.748%; matures March 2028 | 250,000 | 2,574 | |||||||||
Fixed 3.526%; matures March 2028 | 250,000 | 1,271 | |||||||||
Fixed 3.993%; matures October 2029 | 350,000 | 9,228 | |||||||||
Fixed 4.245%; matures November 2029 | 350,000 | 12,803 | |||||||||
Fixed 3.300%; matures November 2029 (1) | 250,000 | 183 | |||||||||
Fixed 3.816%; matures November 2030 (1) | 250,000 | 5,787 | |||||||||
Fixed 3.551%; matures November 2030 (1) | 250,000 | 2,716 | |||||||||
Fixed 3.950%; matures February 2031 (2) | 250,000 | 7,469 | |||||||||
Fixed 4.250%; matures February 2031 (2) | 250,000 | 10,924 | |||||||||
Fixed 3.378%; matures October 2031 (3) | 200,000 | 410 | |||||||||
| Total Cash Flow Hedges | $ | 7,100,000 | $ | 54,717 | |||||||
| Three Months Ended | Nine Months Ended | ||||||||||||||||||||||
| (In thousands) | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | |||||||||||||||||||
| Unrealized gain (loss) at beginning of period | $ | 72,529 | $ | (49,396) | $ | (15,508) | $ | 43,538 | |||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss to interest income or expense on deposits, loans, and other borrowings | 5,300 | 20,378 | 15,936 | 60,720 | |||||||||||||||||||
| Amount of (loss) gain recognized in other comprehensive income or loss | (1,020) | 104,470 | 76,381 | (28,806) | |||||||||||||||||||
| Unrealized gain at end of period | $ | 76,809 | $ | 75,452 | $ | 76,809 | $ | 75,452 | |||||||||||||||
| (In thousands) | September 30, 2025 | ||||||||||||||||||||||
Derivatives in Fair Value Hedging Relationships | Location in the Statement of Condition | Carrying Amount of the Hedged Assets/(Liabilities) | Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities) | Cumulative Amount of Fair Value Hedging Adjustment Remaining for any Hedged Assets/(Liabilities) for which Hedge Accounting has been Discontinued | |||||||||||||||||||
| Interest rate swaps | Loans, net of unearned income | $ | 113,650 | $ | (5,031) | $ | (38) | ||||||||||||||||
| Available-for-sale debt securities | 494 | (3) | — | ||||||||||||||||||||
(In thousands) Derivatives in Fair Value Hedging Relationships | Location of (Loss)/Gain Recognized in Income on Derivative | Three Months Ended | Nine Months Ended | ||||||||||||||
| September 30, 2025 | September 30, 2025 | ||||||||||||||||
| Interest rate swaps | Interest and fees on loans | $ | (4) | $ | (10) | ||||||||||||
| (In thousands) | Three Months Ended | Nine Months Ended | |||||||||||||||||||||||||||
| Derivative | Location in income statement | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | ||||||||||||||||||||||||
| Interest rate swaps and caps | Trading gains (losses), net | $ | 92 | $ | (245) | $ | 60 | $ | 248 | ||||||||||||||||||||
| Mortgage banking derivatives | Mortgage banking | (584) | (1,692) | 2,733 | 2,014 | ||||||||||||||||||||||||
| Commodity contracts | Trading gains (losses), net | 89 | (116) | 166 | 282 | ||||||||||||||||||||||||
| Foreign exchange contracts | Trading gains (losses), net | 79 | (171) | 152 | (152) | ||||||||||||||||||||||||
| Covered call options | Fees from covered call options | 5,619 | 988 | 14,689 | 7,891 | ||||||||||||||||||||||||
| Derivative contract held as economic hedge on MSRs | Mortgage banking | 265 | 6,892 | 7,697 | 3,543 | ||||||||||||||||||||||||
| Derivative Assets | Derivative Liabilities | ||||||||||||||||||||||||||||||||||
| Fair Value | Fair Value | ||||||||||||||||||||||||||||||||||
| (In thousands) | September 30, 2025 | December 31, 2024 | September 30, 2024 | September 30, 2025 | December 31, 2024 | September 30, 2024 | |||||||||||||||||||||||||||||
| Gross Amounts Recognized | $ | 201,318 | $ | 194,883 | $ | 246,927 | $ | 138,789 | $ | 239,970 | $ | 195,033 | |||||||||||||||||||||||
| Gross amounts not offset in the Statements of Condition | |||||||||||||||||||||||||||||||||||
| Offsetting Derivative Positions | (65,969) | (74,656) | (82,819) | (65,969) | (74,656) | (82,819) | |||||||||||||||||||||||||||||
| Collateral Posted | (59,598) | (78,550) | (59,791) | (1,686) | — | (420) | |||||||||||||||||||||||||||||
| Net Credit Exposure | $ | 75,751 | $ | 41,677 | $ | 104,317 | $ | 71,134 | $ | 165,314 | $ | 111,794 | |||||||||||||||||||||||
| September 30, 2025 | |||||||||||||||||||||||
| (In thousands) | Total | Level 1 | Level 2 | Level 3 | |||||||||||||||||||
| Available-for-sale securities | |||||||||||||||||||||||
| U.S. Treasury | $ | 8,036 | $ | 8,036 | $ | — | $ | — | |||||||||||||||
| U.S. government agencies | 46,511 | — | 46,511 | — | |||||||||||||||||||
| Municipal | 194,244 | — | 64,450 | 129,794 | |||||||||||||||||||
| Corporate notes | 80,372 | — | 80,372 | — | |||||||||||||||||||
| Mortgage-backed | 4,944,961 | — | 4,944,961 | — | |||||||||||||||||||
| Trading account securities | — | — | — | — | |||||||||||||||||||
| Equity securities with readily determinable fair value | 63,445 | 55,379 | 8,066 | — | |||||||||||||||||||
| Mortgage loans held-for-sale | 333,883 | — | 279,157 | 54,726 | |||||||||||||||||||
| Loans held-for-investment | 129,593 | — | 80,373 | 49,220 | |||||||||||||||||||
| MSRs | 190,938 | — | — | 190,938 | |||||||||||||||||||
| Nonqualified deferred compensation assets | 17,902 | — | 17,902 | — | |||||||||||||||||||
| Derivative assets | 208,957 | — | 201,808 | 7,149 | |||||||||||||||||||
| Total | $ | 6,218,842 | $ | 63,415 | $ | 5,723,600 | $ | 431,827 | |||||||||||||||
| Derivative liabilities | $ | 141,705 | $ | — | $ | 141,705 | $ | — | |||||||||||||||
| December 31, 2024 | ||||||||||||||||||||||||||
| (In thousands) | Total | Level 1 | Level 2 | Level 3 | ||||||||||||||||||||||
| Available-for-sale securities | ||||||||||||||||||||||||||
| U.S. Treasury | $ | 37,907 | $ | 37,907 | $ | — | $ | — | ||||||||||||||||||
| U.S. government agencies | 44,945 | — | 44,945 | — | ||||||||||||||||||||||
| Municipal | 184,593 | — | 62,986 | 121,607 | ||||||||||||||||||||||
| Corporate notes | 81,162 | — | 81,162 | — | ||||||||||||||||||||||
| Mortgage-backed | 3,792,875 | — | 3,792,875 | — | ||||||||||||||||||||||
| Trading account securities | 4,072 | — | 4,072 | — | ||||||||||||||||||||||
| Equity securities with readily determinable fair value | 215,412 | 207,346 | 8,066 | — | ||||||||||||||||||||||
| Mortgage loans held-for-sale | 331,261 | — | 270,862 | 60,399 | ||||||||||||||||||||||
| Loans held-for-investment | 158,795 | — | 123,899 | 34,896 | ||||||||||||||||||||||
| MSRs | 203,788 | — | — | 203,788 | ||||||||||||||||||||||
| Nonqualified deferred compensation assets | 16,653 | — | 16,653 | — | ||||||||||||||||||||||
| Derivative assets | 200,027 | — | 198,077 | 1,950 | ||||||||||||||||||||||
| Total | $ | 5,271,490 | $ | 245,253 | $ | 4,603,597 | $ | 422,640 | ||||||||||||||||||
| Derivative liabilities | $ | 241,750 | $ | — | $ | 241,750 | $ | — | ||||||||||||||||||
| September 30, 2024 | |||||||||||||||||||||||
| (In thousands) | Total | Level 1 | Level 2 | Level 3 | |||||||||||||||||||
| Available-for-sale securities | |||||||||||||||||||||||
| U.S. Treasury | $ | 98,323 | $ | 98,323 | $ | — | $ | — | |||||||||||||||
| U.S. government agencies | 47,654 | — | 47,654 | — | |||||||||||||||||||
| Municipal | 200,212 | — | 64,962 | 135,250 | |||||||||||||||||||
| Corporate notes | 80,117 | — | 80,117 | — | |||||||||||||||||||
| Mortgage-backed | 3,485,926 | — | 3,485,926 | — | |||||||||||||||||||
| Trading account securities | 3,472 | — | 3,472 | — | |||||||||||||||||||
| Equity securities with readily determinable fair value | 125,310 | 117,244 | 8,066 | — | |||||||||||||||||||
| Mortgage loans held-for-sale | 461,067 | — | 402,004 | 59,063 | |||||||||||||||||||
| Loans held-for-investment | 138,038 | — | 93,263 | 44,775 | |||||||||||||||||||
| MSRs | 186,308 | — | — | 186,308 | |||||||||||||||||||
| Nonqualified deferred compensation assets | 16,756 | — | 16,756 | — | |||||||||||||||||||
| Derivative assets | 255,662 | — | 250,520 | 5,142 | |||||||||||||||||||
| Total | $ | 5,098,845 | $ | 215,567 | $ | 4,452,740 | $ | 430,538 | |||||||||||||||
| Derivative liabilities | $ | 199,339 | $ | — | $ | 199,339 | $ | — | |||||||||||||||
| Mortgage loans held-for-sale | Loans held-for- investment | Mortgage servicing rights | Derivative assets | ||||||||||||||||||||||||||
| (In thousands) | Municipal | ||||||||||||||||||||||||||||
| Balance at July 1, 2025 | $ | 116,075 | $ | 27,168 | $ | 53,037 | $ | 193,061 | $ | 5,548 | |||||||||||||||||||
| Total net (losses) gains included in: | |||||||||||||||||||||||||||||
Net income (1) | — | 82 | (663) | (2,123) | 1,601 | ||||||||||||||||||||||||
| Other comprehensive income or loss | (937) | — | — | — | — | ||||||||||||||||||||||||
| Purchases | 14,696 | — | — | — | — | ||||||||||||||||||||||||
| Settlements | (40) | (7,182) | (11,810) | — | — | ||||||||||||||||||||||||
Net transfers into Level 3 | — | 34,658 | 8,656 | — | — | ||||||||||||||||||||||||
| Balance at September 30, 2025 | $ | 129,794 | $ | 54,726 | $ | 49,220 | $ | 190,938 | $ | 7,149 | |||||||||||||||||||
| Mortgage loans held-for-sale | Loans held-for- investment | Mortgage servicing rights | Derivative assets | |||||||||||||||||||||||||||||
| (In thousands) | Municipal | |||||||||||||||||||||||||||||||
| Balance at July 1, 2024 | $ | 95,792 | $ | 40,545 | $ | 45,721 | $ | 204,610 | $ | 4,795 | ||||||||||||||||||||||
| Total net gains (losses) included in: | ||||||||||||||||||||||||||||||||
Net income (1) | — | 126 | 381 | (18,302) | 347 | |||||||||||||||||||||||||||
| Other comprehensive income or loss | 968 | — | — | — | — | |||||||||||||||||||||||||||
| Purchases | 38,490 | — | — | — | — | |||||||||||||||||||||||||||
| Settlements | — | (8,078) | (7,924) | — | — | |||||||||||||||||||||||||||
| Net transfers into Level 3 | — | 26,470 | 6,597 | — | — | |||||||||||||||||||||||||||
| Balance at September 30, 2024 | $ | 135,250 | $ | 59,063 | $ | 44,775 | $ | 186,308 | $ | 5,142 | ||||||||||||||||||||||
| Mortgage loans held-for-sale | Loans held-for- investment | Mortgage servicing rights | Derivative Assets | ||||||||||||||||||||||||||
| (In thousands) | Municipal | ||||||||||||||||||||||||||||
Balance at January 1, 2025 | $ | 121,607 | $ | 60,399 | $ | 34,896 | $ | 203,788 | $ | 1,950 | |||||||||||||||||||
| Total net (losses) gains included in: | |||||||||||||||||||||||||||||
Net income (1) | — | 1,534 | 173 | (12,850) | 5,199 | ||||||||||||||||||||||||
| Other comprehensive income or loss | (8,368) | — | — | — | — | ||||||||||||||||||||||||
| Purchases | 29,978 | — | — | — | — | ||||||||||||||||||||||||
| Issuances | — | — | — | — | — | ||||||||||||||||||||||||
| Sales | — | — | — | — | — | ||||||||||||||||||||||||
| Settlements | (13,423) | (76,602) | (24,535) | — | — | ||||||||||||||||||||||||
Net transfers into Level 3 | — | 69,395 | 38,686 | — | — | ||||||||||||||||||||||||
| Balance at September 30, 2025 | $ | 129,794 | $ | 54,726 | $ | 49,220 | $ | 190,938 | $ | 7,149 | |||||||||||||||||||
| Mortgage loans held-for-sale | Loans held-for- investment | Mortgage servicing rights | Derivative Assets | ||||||||||||||||||||||||||
| (In thousands) | Municipal | ||||||||||||||||||||||||||||
Balance at January 1, 2024 | $ | 86,237 | $ | 26,835 | $ | 60,670 | $ | 192,456 | $ | 4,510 | |||||||||||||||||||
| Total net (losses) gains included in: | |||||||||||||||||||||||||||||
Net income (1) | — | 398 | 130 | (6,148) | 632 | ||||||||||||||||||||||||
| Other comprehensive income or loss | (1,700) | — | — | — | — | ||||||||||||||||||||||||
| Purchases | 56,556 | — | — | — | — | ||||||||||||||||||||||||
| Sales | — | — | — | — | — | ||||||||||||||||||||||||
| Settlements | (5,843) | (28,687) | (31,436) | — | — | ||||||||||||||||||||||||
| Net transfers into Level 3 | — | 60,517 | 15,411 | — | — | ||||||||||||||||||||||||
| Balance at September 30, 2024 | $ | 135,250 | $ | 59,063 | $ | 44,775 | $ | 186,308 | $ | 5,142 | |||||||||||||||||||
| September 30, 2025 | Three Months Ended September 30, 2025 Fair Value Losses Recognized, net | Nine Months Ended September 30, 2025 Fair Value Losses Recognized, net | |||||||||||||||||||||||||||||||||
| (In thousands) | Total | Level 1 | Level 2 | Level 3 | |||||||||||||||||||||||||||||||
| Individually assessed loans - foreclosure probable and collateral-dependent | $ | 124,966 | $ | — | $ | — | $ | 124,966 | $ | 21,509 | $ | 42,664 | |||||||||||||||||||||||
Other real estate owned (1) | 24,832 | — | — | 24,832 | — | 816 | |||||||||||||||||||||||||||||
| Total | $ | 149,798 | $ | — | $ | — | $ | 149,798 | $ | 21,509 | $ | 43,480 | |||||||||||||||||||||||
| (Dollars in thousands) | Fair Value | Valuation Methodology | Significant Unobservable Input | Input / Range of Inputs | Weighted Average of Inputs | Impact to valuation from an increased or higher input value | |||||||||||||||||||||||||||||
| Measured at fair value on a recurring basis: | |||||||||||||||||||||||||||||||||||
| Municipal securities | $ | 129,794 | Bond pricing | Equivalent rating | BBB-AA+ | N/A | Increase | ||||||||||||||||||||||||||||
| Mortgage loans held-for-sale | 54,726 | Discounted cash flows | Discount rate | 5.14% | 5.14% | Decrease | |||||||||||||||||||||||||||||
| Credit discount | 0% - 26% | 1.29% | Decrease | ||||||||||||||||||||||||||||||||
| Loans held-for-investment | 49,220 | Discounted cash flows | Discount rate | 5.14% - 6.00% | 5.14% | Decrease | |||||||||||||||||||||||||||||
| Credit discount | 0% - 26% | 1.88% | Decrease | ||||||||||||||||||||||||||||||||
| Constant prepayment rate (CPR) - current loans | 9.44% | 9.44% | Decrease | ||||||||||||||||||||||||||||||||
| Average life - delinquent loans (in years) | 1.6 years - 11.7 years | 5.8 years | Decrease | ||||||||||||||||||||||||||||||||
| MSRs | 190,938 | Discounted cash flows | Discount rate | 5% - 20% | 10.43% | Decrease | |||||||||||||||||||||||||||||
| Constant prepayment rate (CPR) | 0% - 86% | 9.44% | Decrease | ||||||||||||||||||||||||||||||||
| Cost of servicing | $70 - $200 | $ | 76 | Decrease | |||||||||||||||||||||||||||||||
| Cost of servicing - delinquent | $200 - 1,000 | $ | 386 | Decrease | |||||||||||||||||||||||||||||||
| Derivatives | 7,149 | Discounted cash flows | Pull-through rate | 6% - 100% | 84.88 | % | Increase | ||||||||||||||||||||||||||||
| Measured at fair value on a non-recurring basis: | |||||||||||||||||||||||||||||||||||
| Individually assessed loans - foreclosure probable and collateral-dependent | 124,966 | Appraisal value | Appraisal adjustment - cost of sale | 10% | 10.00% | Decrease | |||||||||||||||||||||||||||||
| Other real estate owned | 24,832 | Appraisal value | Appraisal adjustment - cost of sale | 10% | 10.00% | Decrease | |||||||||||||||||||||||||||||
| At September 30, 2025 | At December 31, 2024 | At September 30, 2024 | |||||||||||||||||||||||||||||||||
| Carrying | Fair | Carrying | Fair | Carrying | Fair | ||||||||||||||||||||||||||||||
| (In thousands) | Value | Value | Value | Value | Value | Value | |||||||||||||||||||||||||||||
| Financial Assets: | |||||||||||||||||||||||||||||||||||
| Cash and cash equivalents | $ | 565,469 | $ | 565,469 | $ | 458,536 | $ | 458,536 | $ | 731,128 | $ | 731,128 | |||||||||||||||||||||||
| Interest-bearing deposits with banks | 3,422,452 | 3,422,452 | 4,409,753 | 4,409,753 | 3,648,117 | 3,648,117 | |||||||||||||||||||||||||||||
| Available-for-sale securities | 5,274,124 | 5,274,124 | 4,141,482 | 4,141,482 | 3,912,232 | 3,912,232 | |||||||||||||||||||||||||||||
| Held-to-maturity securities | 3,438,406 | 2,860,970 | 3,613,263 | 2,910,550 | 3,677,420 | 3,121,820 | |||||||||||||||||||||||||||||
| Trading account securities | — | — | 4,072 | 4,072 | 3,472 | 3,472 | |||||||||||||||||||||||||||||
| Equity securities with readily determinable fair value | 63,445 | 63,445 | 215,412 | 215,412 | 125,310 | 125,310 | |||||||||||||||||||||||||||||
| FHLB and FRB stock, at cost | 282,755 | 282,755 | 281,407 | 281,407 | 266,908 | 266,908 | |||||||||||||||||||||||||||||
| Brokerage customer receivables | — | — | 18,102 | 18,102 | 16,662 | 16,662 | |||||||||||||||||||||||||||||
| Mortgage loans held-for-sale, at fair value | 333,883 | 333,883 | 331,261 | 331,261 | 461,067 | 461,067 | |||||||||||||||||||||||||||||
| Loans held-for-investment, at fair value | 129,593 | 129,593 | 158,795 | 158,795 | 138,038 | 138,038 | |||||||||||||||||||||||||||||
| Loans held-for-investment, at amortized cost | 51,933,889 | 51,255,561 | 47,896,242 | 47,070,249 | 46,929,409 | 46,081,849 | |||||||||||||||||||||||||||||
| Nonqualified deferred compensation assets | 17,902 | 17,902 | 16,653 | 16,653 | 16,756 | 16,756 | |||||||||||||||||||||||||||||
| Derivative assets | 208,957 | 208,957 | 200,027 | 200,027 | 255,662 | 255,662 | |||||||||||||||||||||||||||||
| Accrued interest receivable and other | 587,274 | 587,274 | 563,625 | 563,625 | 588,594 | 588,594 | |||||||||||||||||||||||||||||
| Total financial assets | $ | 66,258,149 | $ | 65,002,385 | $ | 62,308,630 | $ | 60,779,924 | $ | 60,770,775 | $ | 59,367,615 | |||||||||||||||||||||||
| Financial Liabilities: | |||||||||||||||||||||||||||||||||||
| Non-maturity deposits | $ | 46,292,925 | $ | 46,292,925 | $ | 43,092,318 | $ | 43,092,318 | $ | 41,406,393 | $ | 41,406,393 | |||||||||||||||||||||||
| Deposits with stated maturities | 10,418,456 | 10,424,097 | 9,420,031 | 9,423,976 | 9,998,573 | 9,985,778 | |||||||||||||||||||||||||||||
| FHLB advances | 3,151,309 | 3,185,090 | 3,151,309 | 3,153,524 | 3,171,309 | 3,334,183 | |||||||||||||||||||||||||||||
| Other borrowings | 579,328 | 579,479 | 534,803 | 534,406 | 647,043 | 646,272 | |||||||||||||||||||||||||||||
| Subordinated notes | 298,536 | 295,974 | 298,283 | 286,683 | 298,188 | 289,260 | |||||||||||||||||||||||||||||
| Junior subordinated debentures | 253,566 | 253,591 | 253,566 | 253,588 | 253,566 | 253,662 | |||||||||||||||||||||||||||||
| Derivative liabilities | 141,705 | 141,705 | 241,750 | 241,750 | 199,339 | 199,339 | |||||||||||||||||||||||||||||
| Accrued interest payable | 69,453 | 69,453 | 48,364 | 48,364 | 75,254 | 75,254 | |||||||||||||||||||||||||||||
| Total financial liabilities | $ | 61,205,278 | $ | 61,242,314 | $ | 57,040,424 | $ | 57,034,609 | $ | 56,049,665 | $ | 56,190,141 | |||||||||||||||||||||||
| Stock Options | Common Shares | Weighted Average Strike Price | Remaining Contractual Term (1) | Intrinsic Value (2) (in thousands) | |||||||||||||||||||
Outstanding at January 1, 2025 | 10,825 | $ | 43.76 | ||||||||||||||||||||
| Granted | — | — | |||||||||||||||||||||
| Exercised | (5,150) | 42.61 | |||||||||||||||||||||
| Forfeited or canceled | — | — | |||||||||||||||||||||
Outstanding at September 30, 2025 | 5,675 | $ | 44.81 | 3.0 | $ | 497 | |||||||||||||||||
Exercisable at September 30, 2025 | 5,675 | $ | 44.81 | 3.0 | $ | 497 | |||||||||||||||||
| Stock Options | Common Shares | Weighted Average Strike Price | Remaining Contractual Term (1) | Intrinsic Value (2) (in thousands) | |||||||||||||||||||
Outstanding at January 1, 2024 | 13,100 | $ | 42.76 | ||||||||||||||||||||
| Granted | — | — | |||||||||||||||||||||
| Exercised | (775) | 32.26 | |||||||||||||||||||||
| Forfeited or canceled | — | — | |||||||||||||||||||||
Outstanding at September 30, 2024 | 12,325 | $ | 43.42 | 3.7 | $ | 802 | |||||||||||||||||
Exercisable at September 30, 2024 | 12,325 | $ | 43.42 | 3.7 | $ | 802 | |||||||||||||||||
| Nine months ended September 30, 2025 | Nine months ended September 30, 2024 | ||||||||||||||||||||||
| Restricted Shares | Common Shares | Weighted Average Grant-Date Fair Value | Common Shares | Weighted Average Grant-Date Fair Value | |||||||||||||||||||
| Outstanding at January 1 | 880,866 | $ | 90.95 | 746,123 | $ | 79.60 | |||||||||||||||||
| Granted | 256,762 | 133.15 | 405,506 | 99.78 | |||||||||||||||||||
| Vested and issued | (218,276) | 94.41 | (238,002) | 70.14 | |||||||||||||||||||
| Forfeited or canceled | (24,156) | 109.48 | (17,885) | 92.77 | |||||||||||||||||||
Outstanding at September 30 | 895,196 | $ | 101.71 | 895,742 | $ | 90.99 | |||||||||||||||||
Vested, but deferred, at September 30 | 101,820 | $ | 55.31 | 100,281 | $ | 54.19 | |||||||||||||||||
| Nine months ended September 30, 2025 | Nine months ended September 30, 2024 | ||||||||||||||||||||||
| Performance-based Stock | Common Shares | Weighted Average Grant-Date Fair Value | Common Shares | Weighted Average Grant-Date Fair Value | |||||||||||||||||||
| Outstanding at January 1 | 454,017 | $ | 93.57 | 553,026 | $ | 79.69 | |||||||||||||||||
| Granted | 88,257 | 134.58 | 111,398 | 100.44 | |||||||||||||||||||
| Added by performance factor at vesting | 75,461 | 96.51 | 96,952 | 58.78 | |||||||||||||||||||
| Vested and issued | (230,957) | 95.26 | (296,243) | 58.76 | |||||||||||||||||||
| Forfeited or canceled | (8,218) | 107.24 | (5,304) | 95.77 | |||||||||||||||||||
Outstanding at September 30 | 378,560 | $ | 102.35 | 459,829 | $ | 93.61 | |||||||||||||||||
Vested, but deferred, at September 30 | 13,283 | $ | 40.87 | 21,688 | $ | 44.21 | |||||||||||||||||
| (In thousands) | Accumulated Unrealized (Losses) Gains on Securities | Accumulated Unrealized Gains (Losses) on Derivative Instruments | Accumulated Foreign Currency Translation Adjustments | Total Accumulated Other Comprehensive (Loss) Income | |||||||||||||||||||
| Balance at July 1, 2025 | $ | (369,968) | $ | 53,920 | $ | (50,185) | $ | (366,233) | |||||||||||||||
| Other comprehensive income (loss) during the period, net of tax, before reclassifications | 55,886 | (754) | (7,423) | 47,709 | |||||||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | (199) | 3,922 | — | 3,723 | |||||||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax | (7) | — | — | (7) | |||||||||||||||||||
| Net other comprehensive income (loss) during the period, net of tax | $ | 55,680 | $ | 3,168 | $ | (7,423) | $ | 51,425 | |||||||||||||||
| Balance at September 30, 2025 | $ | (314,288) | $ | 57,088 | $ | (57,608) | $ | (314,808) | |||||||||||||||
| Balance at January 1, 2025 | $ | (429,580) | $ | (11,227) | $ | (67,528) | $ | (508,335) | |||||||||||||||
| Other comprehensive income during the period, net of tax, before reclassifications | 115,227 | 56,523 | 9,920 | 181,670 | |||||||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | 88 | 11,792 | — | 11,880 | |||||||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax | (23) | — | — | (23) | |||||||||||||||||||
| Net other comprehensive income during the period, net of tax | $ | 115,292 | $ | 68,315 | $ | 9,920 | $ | 193,527 | |||||||||||||||
| Balance at September 30, 2025 | $ | (314,288) | $ | 57,088 | $ | (57,608) | $ | (314,808) | |||||||||||||||
| Balance at July 1, 2024 | $ | (424,172) | $ | (36,304) | $ | (51,722) | $ | (512,198) | |||||||||||||||
| Other comprehensive income during the period, net of tax, before reclassifications | 124,478 | 77,308 | 3,204 | 204,990 | |||||||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | (39) | 15,080 | — | 15,041 | |||||||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax | (10) | — | — | (10) | |||||||||||||||||||
| Net other comprehensive income during the period, net of tax | $ | 124,429 | $ | 92,388 | $ | 3,204 | $ | 220,021 | |||||||||||||||
| Balance at September 30, 2024 | $ | (299,743) | $ | 56,084 | $ | (48,518) | $ | (292,177) | |||||||||||||||
| Balance at January 1, 2024 | $ | (350,697) | $ | 32,049 | $ | (42,583) | $ | (361,231) | |||||||||||||||
| Other comprehensive income (loss) during the period, net of tax, before reclassifications | 51,916 | (20,715) | (5,935) | 25,266 | |||||||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | (905) | 44,750 | — | 43,845 | |||||||||||||||||||
| Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax | (57) | — | — | (57) | |||||||||||||||||||
| Net other comprehensive income (loss) during the period, net of tax | $ | 50,954 | $ | 24,035 | $ | (5,935) | $ | 69,054 | |||||||||||||||
| Balance at September 30, 2024 | $ | (299,743) | $ | 56,084 | $ | (48,518) | $ | (292,177) | |||||||||||||||
| (In thousands) | Amount Reclassified from Accumulated Other Comprehensive Income or Loss for the | |||||||||||||||||||||||||||||||
| Details Regarding the Component of Accumulated Other Comprehensive Income or Loss | Three Months Ended | Nine Months Ended | Impacted Line on the Consolidated Statements of Income | |||||||||||||||||||||||||||||
| September 30, | September 30, | |||||||||||||||||||||||||||||||
| 2025 | 2024 | 2025 | 2024 | |||||||||||||||||||||||||||||
| Accumulated unrealized (losses) gains on securities | ||||||||||||||||||||||||||||||||
| Gains included in net income | $ | 269 | $ | 45 | $ | (119) | $ | 1,223 | Gains on investment securities, net | |||||||||||||||||||||||
| 269 | 45 | (119) | 1,223 | Income before taxes | ||||||||||||||||||||||||||||
| Tax effect | (70) | (6) | 31 | (318) | Income tax expense | |||||||||||||||||||||||||||
| Net of tax | $ | 199 | $ | 39 | $ | (88) | $ | 905 | Net income | |||||||||||||||||||||||
| Accumulated unrealized gains on derivative instruments | ||||||||||||||||||||||||||||||||
| Amount reclassified to interest income on loans | $ | 8,625 | $ | 23,704 | $ | 25,911 | $ | 72,027 | Interest on Loans | |||||||||||||||||||||||
| Amount reclassified to interest expense on deposits | (3,325) | (3,325) | (9,975) | (11,307) | Interest on deposits | |||||||||||||||||||||||||||
| (5,300) | (20,379) | (15,936) | (60,720) | Income before taxes | ||||||||||||||||||||||||||||
| Tax effect | 1,378 | 5,299 | 4,144 | 15,970 | Income tax expense | |||||||||||||||||||||||||||
| Net of tax | $ | (3,922) | $ | (15,080) | $ | (11,792) | $ | (44,750) | Net income | |||||||||||||||||||||||
| Three Months Ended | Nine Months Ended | ||||||||||||||||||||||||||||
| (Dollars in thousands, except per share data) | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | |||||||||||||||||||||||||
| Net income | $ | 216,254 | $ | 170,001 | $ | 600,820 | $ | 509,683 | |||||||||||||||||||||
| Less: Preferred stock dividends | 13,295 | 6,991 | 27,277 | 20,973 | |||||||||||||||||||||||||
| Less: Preferred stock redemption | 14,046 | — | 14,046 | — | |||||||||||||||||||||||||
| Net income applicable to common shares | (A) | $ | 188,913 | $ | 163,010 | $ | 559,497 | $ | 488,710 | ||||||||||||||||||||
| Weighted average common shares outstanding | (B) | 66,952 | 64,888 | 66,871 | 62,743 | ||||||||||||||||||||||||
| Effect of dilutive potential common shares | |||||||||||||||||||||||||||||
| Common stock equivalents | 1,028 | 1,053 | 945 | 934 | |||||||||||||||||||||||||
| Weighted average common shares and effect of dilutive potential common shares | (C) | 67,980 | 65,941 | 67,816 | 63,677 | ||||||||||||||||||||||||
| Net income per common share: | |||||||||||||||||||||||||||||
| Basic | (A/B) | $ | 2.82 | $ | 2.51 | $ | 8.37 | $ | 7.79 | ||||||||||||||||||||
| Diluted | (A/C) | $ | 2.78 | $ | 2.47 | $ | 8.25 | $ | 7.67 | ||||||||||||||||||||
| Three Months Ended | |||||||||||||||||
| (Dollars in thousands, except per share data) | September 30, 2025 | September 30, 2024 | Percentage (%) or Basis Point (bp) Change | ||||||||||||||
| Net income | $ | 216,254 | $ | 170,001 | 27 | % | |||||||||||
Pre-tax income, excluding provision for credit losses (non-GAAP) (1) | 317,809 | 255,043 | 25 | ||||||||||||||
| Net income per common share—Diluted | 2.78 | 2.47 | 13 | ||||||||||||||
Net revenue (2) | 697,837 | 615,730 | 13 | ||||||||||||||
| Net interest income | 567,010 | 502,583 | 13 | ||||||||||||||
| Net interest margin | 3.48 | % | 3.49 | % | (1) | bps | |||||||||||
Net interest margin - fully taxable-equivalent (non-GAAP) (1) | 3.50 | 3.51 | (1) | ||||||||||||||
Net overhead ratio (3) | 1.45 | 1.62 | (17) | ||||||||||||||
| Return on average assets | 1.26 | 1.11 | 15 | ||||||||||||||
| Return on average common equity | 11.58 | 11.63 | (5) | ||||||||||||||
Return on average tangible common equity (non-GAAP) (1) | 13.74 | 13.92 | (18) | ||||||||||||||
| Nine months ended | |||||||||||||||||
| (Dollars in thousands, except per share data) | September 30, 2025 | September 30, 2024 | Percentage (%) or Basis Point (bp) Change | ||||||||||||||
| Net income | $ | 600,820 | $ | 509,683 | 18 | % | |||||||||||
Pre-tax income, excluding provision for credit losses (non-GAAP) (1) | 884,149 | 778,076 | 14 | ||||||||||||||
| Net income per common share—Diluted | 8.25 | 7.67 | 7 | ||||||||||||||
Net revenue (2) | 2,011,728 | 1,812,261 | 11 | ||||||||||||||
| Net interest income | 1,640,178 | 1,437,387 | 14 | ||||||||||||||
| Net interest margin | 3.51 | % | 3.52 | % | (1) | bps | |||||||||||
Net interest margin - fully taxable-equivalent (non-GAAP) (1) | 3.53 | 3.54 | (1) | ||||||||||||||
Net overhead ratio (3) | 1.53 | 1.52 | 1 | ||||||||||||||
| Return on average assets | 1.22 | 1.17 | 5 | ||||||||||||||
| Return on average common equity | 11.94 | 12.52 | (58) | ||||||||||||||
Return on average tangible common equity (non-GAAP) (1) | 14.28 | 14.69 | (41) | ||||||||||||||
| At end of period | |||||||||||||||||
| Total assets | $ | 69,629,638 | $ | 63,788,424 | 9 | % | |||||||||||
| Total loans, excluding loans held-for-sale | 52,063,482 | 47,067,447 | 11 | ||||||||||||||
| Total loans, including loans held-for-sale | 52,397,365 | 47,528,514 | 10 | ||||||||||||||
| Total deposits | 56,711,381 | 51,404,966 | 10 | ||||||||||||||
| Total shareholders’ equity | 7,045,757 | 6,399,714 | 10 | ||||||||||||||
Book value per common share (1) | 98.87 | 90.06 | 10 | ||||||||||||||
Tangible common book value per share (1) | 85.39 | 76.15 | 12 | ||||||||||||||
| Market price per common share | 132.44 | 108.53 | 22 | ||||||||||||||
| Allowance for loan and unfunded lending-related commitment losses to total loans | 0.87 | % | 0.93 | % | (6) | bps | |||||||||||
| Three Months Ended | Nine Months Ended | ||||||||||||||||||||||||||||
| September 30, | June 30, | September 30, | September 30, | September 30, | |||||||||||||||||||||||||
| (Dollars and shares in thousands) | 2025 | 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||||||
| Reconciliation of Non-GAAP Net Interest Margin and Efficiency Ratio: | |||||||||||||||||||||||||||||
| (A) Interest Income (GAAP) | $ | 963,834 | $ | 920,908 | $ | 908,604 | $ | 2,771,707 | $ | 2,564,096 | |||||||||||||||||||
| Taxable-equivalent adjustment: | |||||||||||||||||||||||||||||
- Loans | 2,154 | 2,200 | 2,474 | 6,560 | 7,025 | ||||||||||||||||||||||||
| - Liquidity management assets | 675 | 680 | 668 | 2,045 | 1,785 | ||||||||||||||||||||||||
| - Other earning assets | — | — | 2 | 3 | 10 | ||||||||||||||||||||||||
| (B) Interest Income (non-GAAP) | $ | 966,663 | $ | 923,788 | $ | 911,748 | $ | 2,780,315 | $ | 2,572,916 | |||||||||||||||||||
| (C) Interest Expense (GAAP) | 396,824 | 374,214 | 406,021 | 1,131,529 | 1,126,709 | ||||||||||||||||||||||||
| (D) Net Interest Income (GAAP) (A minus C) | 567,010 | 546,694 | 502,583 | 1,640,178 | 1,437,387 | ||||||||||||||||||||||||
| (E) Net Interest Income, fully taxable-equivalent (non-GAAP) (B minus C) | 569,839 | 549,574 | 505,727 | 1,648,786 | 1,446,207 | ||||||||||||||||||||||||
| Net interest margin (GAAP) | 3.48 | % | 3.52 | % | 3.49 | % | 3.51 | % | 3.52 | % | |||||||||||||||||||
| Net interest margin, fully taxable-equivalent (non-GAAP) | 3.50 | 3.54 | 3.51 | 3.53 | 3.54 | ||||||||||||||||||||||||
| (F) Non-interest income | $ | 130,827 | $ | 124,089 | $ | 113,147 | $ | 371,550 | $ | 374,874 | |||||||||||||||||||
| (G) Gains on investment securities, net | 2,972 | 650 | 3,189 | 6,818 | 233 | ||||||||||||||||||||||||
| (H) Non-interest expense | 380,028 | 381,461 | 360,687 | 1,127,579 | 1,034,185 | ||||||||||||||||||||||||
| Efficiency ratio (H/(D+F-G)) | 54.69 | % | 56.92 | % | 58.88 | % | 56.24 | % | 57.07 | % | |||||||||||||||||||
| Efficiency ratio (non-GAAP) (H/(E+F-G)) | 54.47 | 56.68 | 58.58 | 56.00 | 56.80 | ||||||||||||||||||||||||
| Reconciliation of Non-GAAP Tangible Common Equity Ratio: | |||||||||||||||||||||||||||||
| Total shareholders’ equity (GAAP) | $ | 7,045,757 | $ | 7,225,696 | $ | 6,399,714 | |||||||||||||||||||||||
| Less: Non-convertible preferred stock (GAAP) | (425,000) | (837,500) | (412,500) | ||||||||||||||||||||||||||
| Less: Acquisition-related intangible assets (GAAP) | (902,936) | (908,639) | (924,646) | ||||||||||||||||||||||||||
| (I) Total tangible common shareholders’ equity (non-GAAP) | $ | 5,717,821 | $ | 5,479,557 | $ | 5,062,568 | |||||||||||||||||||||||
| (J) Total assets (GAAP) | $ | 69,629,638 | $ | 68,983,318 | $ | 63,788,424 | |||||||||||||||||||||||
| Less: Acquisition-related intangible assets (GAAP) | (902,936) | (908,639) | (924,646) | ||||||||||||||||||||||||||
| (K) Total tangible assets (non-GAAP) | $ | 68,726,702 | $ | 68,074,679 | $ | 62,863,778 | |||||||||||||||||||||||
| Common equity to assets ratio (GAAP) (L/J) | 9.5 | % | 9.3 | % | 9.4 | % | |||||||||||||||||||||||
| Tangible common equity ratio (non-GAAP) (I/K) | 8.3 | 8.0 | 8.1 | ||||||||||||||||||||||||||
| Reconciliation of Non-GAAP Tangible Book Value per Common Share: | |||||||||||||||||||||||||||||
| Total shareholders’ equity | $ | 7,045,757 | $ | 7,225,696 | $ | 6,399,714 | |||||||||||||||||||||||
| Less: Preferred stock | (425,000) | (837,500) | (412,500) | ||||||||||||||||||||||||||
| (L) Total common equity | $ | 6,620,757 | $ | 6,388,196 | $ | 5,987,214 | |||||||||||||||||||||||
| (M) Actual common shares outstanding | 66,961 | 66,938 | 66,482 | ||||||||||||||||||||||||||
| Book value per common share (L/M) | $ | 98.87 | $ | 95.43 | $ | 90.06 | |||||||||||||||||||||||
| Tangible book value per common share (non-GAAP) (I/M) | 85.39 | 81.86 | 76.15 | ||||||||||||||||||||||||||
| Reconciliation of Non-GAAP Return on Average Tangible Common Equity: | |||||||||||||||||||||||||||||
| (N) Net income applicable to common shares | $ | 188,913 | $ | 188,536 | $ | 163,010 | $ | 559,497 | $ | 488,710 | |||||||||||||||||||
| Add: Acquisition-related intangible asset amortization | 5,196 | 5,580 | 4,042 | 16,394 | 6,322 | ||||||||||||||||||||||||
| Less: Tax effect of acquisition-related intangible asset amortization | (1,403) | (1,495) | (1,087) | (4,328) | (1,682) | ||||||||||||||||||||||||
| After-tax acquisition-related intangible asset amortization | $ | 3,793 | $ | 4,085 | $ | 2,955 | $ | 12,066 | $ | 4,640 | |||||||||||||||||||
| (O) Tangible net income applicable to common shares (non-GAAP) | $ | 192,706 | $ | 192,621 | $ | 165,965 | $ | 571,563 | $ | 493,350 | |||||||||||||||||||
| Total average shareholders’ equity | $ | 6,955,543 | $ | 6,862,040 | $ | 5,990,429 | $ | 6,761,319 | $ | 5,628,346 | |||||||||||||||||||
| Less: Average preferred stock | (483,288) | (599,313) | (412,500) | (498,626) | (412,500) | ||||||||||||||||||||||||
| (P) Total average common shareholders’ equity | $ | 6,472,255 | $ | 6,262,727 | $ | 5,577,929 | $ | 6,262,693 | $ | 5,215,846 | |||||||||||||||||||
| Less: Average acquisition-related intangible assets | (906,032) | (910,924) | (833,574) | (910,972) | (730,216) | ||||||||||||||||||||||||
| (Q) Total average tangible common shareholders’ equity (non-GAAP) | $ | 5,566,223 | $ | 5,351,803 | $ | 4,744,355 | $ | 5,351,721 | $ | 4,485,630 | |||||||||||||||||||
| Return on average common equity, annualized (N/P) | 11.58 | % | 12.07 | % | 11.63 | % | 11.94 | % | 12.52 | % | |||||||||||||||||||
| Return on average tangible common equity, annualized (non-GAAP) (O/Q) | 13.74 | 14.44 | 13.92 | 14.28 | 14.69 | ||||||||||||||||||||||||
| Three Months Ended | Nine Months Ended | ||||||||||||||||||||||||||||
| September 30, | June 30, | September 30, | September 30, | September 30, | |||||||||||||||||||||||||
| (Dollars and shares in thousands, except per share data) | 2025 | 2025 | 2024 | 2025 | 2024 | ||||||||||||||||||||||||
| Reconciliation of Non-GAAP Net Income per Common Share: | |||||||||||||||||||||||||||||
| Net income | $ | 216,254 | $ | 195,527 | $ | 170,001 | $ | 600,820 | $ | 509,683 | |||||||||||||||||||
| Preferred stock dividends | 13,295 | 6,991 | 6,991 | 27,277 | 20,973 | ||||||||||||||||||||||||
| Preferred stock redemption | 14,046 | — | — | 14,046 | — | ||||||||||||||||||||||||
| (R) Net income applicable to common shares | $ | 188,913 | $ | 188,536 | $ | 163,010 | $ | 559,497 | $ | 488,710 | |||||||||||||||||||
| (S) Weighted average common shares outstanding | 66,952 | 66,931 | 64,888 | 66,871 | 62,743 | ||||||||||||||||||||||||
| Dilutive potential common shares | 1,028 | 888 | 1,053 | 945 | 934 | ||||||||||||||||||||||||
| (T) Average common shares and dilutive common shares | 67,980 | 67,819 | 65,941 | 67,816 | 63,677 | ||||||||||||||||||||||||
| Net income per common share - Basic (R/S) | $ | 2.82 | $ | 2.82 | $ | 2.51 | $ | 8.37 | $ | 7.79 | |||||||||||||||||||
| Net income per common share - Diluted (R/T) | $ | 2.78 | $ | 2.78 | $ | 2.47 | $ | 8.25 | $ | 7.67 | |||||||||||||||||||
| Preferred stock series F excess one-time extended first dividend | $ | 4,927 | $ | — | $ | — | $ | 4,927 | $ | — | |||||||||||||||||||
| Preferred stock redemption | 14,046 | — | — | 14,046 | — | ||||||||||||||||||||||||
| (U) Total non-recurring preferred stock offering impact (non-GAAP) | $ | 18,973 | $ | — | $ | — | $ | 18,973 | $ | — | |||||||||||||||||||
| Net income per common share - Basic (non-GAAP) (R+U)/S | $ | 3.11 | $ | 2.82 | $ | 2.51 | $ | 8.65 | $ | 7.79 | |||||||||||||||||||
| Net income per common share - Diluted (non-GAAP) (R+U)/T | $ | 3.06 | $ | 2.78 | $ | 2.47 | $ | 8.53 | $ | 7.67 | |||||||||||||||||||
| Impact to estimated allowance for credit losses from an increased or higher input value | ||||||||||||||
| Baa Credit Spread | Increases | |||||||||||||
| Dow Jones Total Stock Market Index | Decreases | |||||||||||||
| CRE Price Index | Decreases | |||||||||||||
| Baa Credit Spread | ||||||||
| Narrows | Widens | |||||||
| Commercial | Decreases estimate by 10%-15% | Increases estimate by 10%-15% | ||||||
| Commercial Real Estate: | ||||||||
| Construction | Decreases estimate by 15%-20% | Increases estimate by 15%-20% | ||||||
| Non-Construction | Decreases estimate by 5%-6% | Increases estimate by 5%-6% | ||||||
| Dow Jones Total Stock Market Index | ||||||||
| Increases | Decreases | |||||||
| Commercial | Decreases estimate by 5%-10% | Increases estimate by 5%-10% | ||||||
| CRE Price Index | ||||||||
| Increases | Decreases | |||||||
| Commercial Real Estate: | ||||||||
| Construction | Decreases estimate by 30%-35% | Increases estimate by 145%-150% | ||||||
| Non-Construction | Decreases estimate by 25%-30% | Increases estimate by 40%-45% | ||||||
| Average Balance for three months ended, | Interest for three months ended, | Yield/Rate for three months ended, | |||||||||||||||||||||||||||||||||||||||||||||||||||
| (Dollars in thousands) | Sep 30, 2025 | Jun 30, 2025 | Sep 30, 2024 | Sep 30, 2025 | Jun 30, 2025 | Sep 30, 2024 | Sep 30, 2025 | Jun 30, 2025 | Sep 30, 2024 | ||||||||||||||||||||||||||||||||||||||||||||
Interest-bearing deposits with banks, securities purchased under resale agreements and cash equivalents (1) | $ | 3,276,683 | $ | 3,308,199 | $ | 2,413,728 | $ | 35,067 | $ | 34,593 | $ | 32,885 | 4.25 | % | 4.19 | % | 5.42 | % | |||||||||||||||||||||||||||||||||||
Investment securities (2) | 9,377,930 | 8,801,560 | 8,276,576 | 87,101 | 78,733 | 70,260 | 3.68 | 3.59 | 3.38 | ||||||||||||||||||||||||||||||||||||||||||||
| FHLB and FRB stock | 282,338 | 282,001 | 263,707 | 5,444 | 5,393 | 5,451 | 7.65 | 7.67 | 8.22 | ||||||||||||||||||||||||||||||||||||||||||||
Liquidity management assets (3) (8) | $ | 12,936,951 | $ | 12,391,760 | $ | 10,954,011 | $ | 127,612 | $ | 118,719 | $ | 108,596 | 3.91 | % | 3.84 | % | 3.94 | % | |||||||||||||||||||||||||||||||||||
Other earning assets (3) (4) (8) | — | — | 17,542 | — | — | 282 | — | — | 6.38 | ||||||||||||||||||||||||||||||||||||||||||||
| Mortgage loans held-for-sale | 295,365 | 310,534 | 376,251 | 4,757 | 4,872 | 6,233 | 6.39 | 6.29 | 6.59 | ||||||||||||||||||||||||||||||||||||||||||||
Loans, net of unearned income (3) (5) (8) | 51,403,566 | 49,517,635 | 45,920,586 | 834,294 | 800,197 | 796,637 | 6.44 | 6.48 | 6.90 | ||||||||||||||||||||||||||||||||||||||||||||
Total earning assets (8) | $ | 64,635,882 | $ | 62,219,929 | $ | 57,268,390 | $ | 966,663 | $ | 923,788 | $ | 911,748 | 5.93 | % | 5.96 | % | 6.33 | % | |||||||||||||||||||||||||||||||||||
| Allowance for loan and investment security losses | (410,681) | (398,685) | (383,736) | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash and due from banks | 495,292 | 478,707 | 467,333 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Other assets | 3,582,543 | 3,540,394 | 3,563,296 | ||||||||||||||||||||||||||||||||||||||||||||||||||
Total assets | $ | 68,303,036 | $ | 65,840,345 | $ | 60,915,283 | |||||||||||||||||||||||||||||||||||||||||||||||
| NOW and interest-bearing demand deposits | $ | 6,687,292 | $ | 6,423,050 | $ | 5,174,673 | $ | 40,448 | $ | 37,517 | $ | 30,971 | 2.40 | % | 2.34 | % | 2.38 | % | |||||||||||||||||||||||||||||||||||
| Wealth management deposits | 1,604,142 | 1,552,989 | 1,362,747 | 8,415 | 8,182 | 10,158 | 2.08 | 2.11 | 2.97 | ||||||||||||||||||||||||||||||||||||||||||||
| Money market accounts | 19,431,021 | 18,184,754 | 16,436,111 | 169,831 | 155,890 | 167,382 | 3.47 | 3.44 | 4.05 | ||||||||||||||||||||||||||||||||||||||||||||
| Savings accounts | 6,723,325 | 6,578,698 | 6,096,746 | 38,844 | 37,637 | 42,892 | 2.29 | 2.29 | 2.80 | ||||||||||||||||||||||||||||||||||||||||||||
| Time deposits | 10,319,719 | 9,841,702 | 9,598,109 | 98,308 | 94,244 | 110,616 | 3.78 | 3.84 | 4.58 | ||||||||||||||||||||||||||||||||||||||||||||
| Interest-bearing deposits | $ | 44,765,499 | $ | 42,581,193 | $ | 38,668,386 | $ | 355,846 | $ | 333,470 | $ | 362,019 | 3.15 | % | 3.14 | % | 3.72 | % | |||||||||||||||||||||||||||||||||||
| Federal Home Loan Bank advances | 3,151,310 | 3,151,310 | 3,178,973 | 26,007 | 25,724 | 26,254 | 3.27 | 3.27 | 3.29 | ||||||||||||||||||||||||||||||||||||||||||||
| Other borrowings | 614,892 | 593,657 | 622,792 | 6,887 | 6,957 | 9,013 | 4.44 | 4.70 | 5.76 | ||||||||||||||||||||||||||||||||||||||||||||
| Subordinated notes | 298,481 | 298,398 | 298,135 | 3,717 | 3,735 | 3,712 | 4.94 | 5.02 | 4.95 | ||||||||||||||||||||||||||||||||||||||||||||
| Junior subordinated debentures | 253,566 | 253,566 | 253,566 | 4,367 | 4,328 | 5,023 | 6.83 | 6.85 | 7.88 | ||||||||||||||||||||||||||||||||||||||||||||
Total interest-bearing liabilities | $ | 49,083,748 | $ | 46,878,124 | $ | 43,021,852 | $ | 396,824 | $ | 374,214 | $ | 406,021 | 3.21 | % | 3.20 | % | 3.75 | % | |||||||||||||||||||||||||||||||||||
| Non-interest-bearing deposits | 10,791,709 | 10,643,798 | 10,271,613 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Other liabilities | 1,472,036 | 1,456,383 | 1,631,389 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | 6,955,543 | 6,862,040 | 5,990,429 | ||||||||||||||||||||||||||||||||||||||||||||||||||
Total liabilities and shareholders’ equity | $ | 68,303,036 | $ | 65,840,345 | $ | 60,915,283 | |||||||||||||||||||||||||||||||||||||||||||||||
Interest rate spread (6) (8) | 2.72 | % | 2.76 | % | 2.58 | % | |||||||||||||||||||||||||||||||||||||||||||||||
| Less: Fully taxable-equivalent adjustment | (2,829) | (2,880) | (3,144) | (0.02) | (0.02) | (0.02) | |||||||||||||||||||||||||||||||||||||||||||||||
Net free funds/contribution (7) | $ | 15,552,134 | $ | 15,341,805 | $ | 14,246,538 | 0.78 | 0.78 | 0.93 | ||||||||||||||||||||||||||||||||||||||||||||
Net interest income/margin (GAAP) (8) | $ | 567,010 | $ | 546,694 | $ | 502,583 | 3.48 | % | 3.52 | % | 3.49 | % | |||||||||||||||||||||||||||||||||||||||||
| Fully taxable-equivalent adjustment | 2,829 | 2,880 | 3,144 | 0.02 | 0.02 | 0.02 | |||||||||||||||||||||||||||||||||||||||||||||||
Net interest income/margin, fully taxable-equivalent (non-GAAP) (8) | $ | 569,839 | $ | 549,574 | $ | 505,727 | 3.50 | % | 3.54 | % | 3.51 | % | |||||||||||||||||||||||||||||||||||||||||
Average Balance for nine months ended, | Interest for nine months ended, | Yield/Rate for nine months ended, | |||||||||||||||||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | |||||||||||||||||||||||||||||
Interest-bearing deposits with banks, securities purchased under resale agreements and cash equivalents (1) | $ | 3,367,419 | $ | 1,720,387 | $ | 106,605 | $ | 69,310 | 4.23 | % | 5.38 | % | |||||||||||||||||||||||
Investment securities (2) | 8,866,621 | 8,276,711 | 238,540 | 210,834 | 3.60 | 3.40 | |||||||||||||||||||||||||||||
| FHLB and FRB stock | 282,016 | 249,375 | 16,144 | 14,903 | 7.65 | 7.98 | |||||||||||||||||||||||||||||
Liquidity management assets (3) (8) | $ | 12,516,056 | $ | 10,246,473 | $ | 361,289 | $ | 295,047 | 3.86 | % | 3.85 | % | |||||||||||||||||||||||
Other earning assets (3) (4) (8) | 4,332 | 15,966 | 92 | 715 | 2.84 | 5.98 | |||||||||||||||||||||||||||||
| Mortgage loans held-for-sale | 297,568 | 338,061 | 13,875 | 15,813 | 6.23 | 6.25 | |||||||||||||||||||||||||||||
Loans, net of unearned income (3) (5) (8) | 49,597,938 | 43,963,779 | 2,405,059 | 2,261,341 | 6.48 | 6.87 | |||||||||||||||||||||||||||||
Total earning assets (8) | $ | 62,415,894 | $ | 54,564,279 | $ | 2,780,315 | $ | 2,572,916 | 5.96 | % | 6.30 | % | |||||||||||||||||||||||
| Allowance for loan and investment security losses | (395,041) | (368,713) | |||||||||||||||||||||||||||||||||
| Cash and due from banks | 483,543 | 450,899 | |||||||||||||||||||||||||||||||||
| Other assets | 3,594,449 | 3,367,882 | |||||||||||||||||||||||||||||||||
| Total assets | $ | 66,098,845 | $ | 58,014,347 | |||||||||||||||||||||||||||||||
| NOW and interest-bearing demand deposits | $ | 6,387,859 | $ | 5,279,697 | $ | 111,565 | $ | 98,586 | 2.34 | % | 2.49 | % | |||||||||||||||||||||||
| Wealth management deposits | 1,577,312 | 1,467,886 | 25,203 | 30,913 | 2.14 | 2.81 | |||||||||||||||||||||||||||||
| Money market accounts | 18,405,748 | 15,398,045 | 472,095 | 460,466 | 3.43 | 3.99 | |||||||||||||||||||||||||||||
| Savings accounts | 6,594,716 | 5,923,205 | 112,404 | 123,026 | 2.28 | 2.77 | |||||||||||||||||||||||||||||
| Time deposits | 9,859,196 | 8,435,172 | 288,282 | 284,263 | 3.91 | 4.50 | |||||||||||||||||||||||||||||
| Interest-bearing deposits | $ | 42,824,831 | $ | 36,504,005 | $ | 1,009,549 | $ | 997,254 | 3.15 | % | 3.65 | % | |||||||||||||||||||||||
| Federal Home Loan Bank advances | 3,151,310 | 3,002,228 | 77,172 | 73,099 | 3.27 | 3.25 | |||||||||||||||||||||||||||||
| Other borrowings | 597,016 | 612,627 | 20,636 | 26,961 | 4.62 | 5.88 | |||||||||||||||||||||||||||||
| Subordinated notes | 298,396 | 381,813 | 11,166 | 14,384 | 5.00 | 5.03 | |||||||||||||||||||||||||||||
| Junior subordinated debentures | 253,566 | 253,566 | 13,006 | 15,011 | 6.86 | 7.91 | |||||||||||||||||||||||||||||
| Total interest-bearing liabilities | $ | 47,125,119 | $ | 40,754,239 | $ | 1,131,529 | $ | 1,126,709 | 3.21 | % | 3.69 | % | |||||||||||||||||||||||
| Non-interest-bearing deposits | 10,722,772 | 10,041,972 | |||||||||||||||||||||||||||||||||
| Other liabilities | 1,489,635 | 1,589,790 | |||||||||||||||||||||||||||||||||
| Equity | 6,761,319 | 5,628,346 | |||||||||||||||||||||||||||||||||
| Total liabilities and shareholders’ equity | $ | 66,098,845 | $ | 58,014,347 | |||||||||||||||||||||||||||||||
Interest rate spread (6) (8) | 2.75 | % | 2.61 | % | |||||||||||||||||||||||||||||||
| Less: Fully taxable-equivalent adjustment | (8,608) | (8,820) | (0.02) | (0.02) | |||||||||||||||||||||||||||||||
Net free funds/contribution (7) | $ | 15,290,775 | $ | 13,810,040 | 0.78 | 0.93 | |||||||||||||||||||||||||||||
Net interest income/margin (GAAP) (8) | $ | 1,640,178 | $ | 1,437,387 | 3.51 | % | 3.52 | % | |||||||||||||||||||||||||||
| Fully taxable-equivalent adjustment | 8,608 | 8,820 | 0.02 | 0.02 | |||||||||||||||||||||||||||||||
Net interest income/margin, fully taxable-equivalent (non-GAAP) (8) | $ | 1,648,786 | $ | 1,446,207 | 3.53 | % | 3.54 | % | |||||||||||||||||||||||||||
Third Quarter of 2025 Compared to Second Quarter of 2025 | Third Quarter of 2025 Compared to Third Quarter of 2024 | First Nine Months of 2025 Compared to First Nine Months of 2024 | |||||||||||||||
| (In thousands) | |||||||||||||||||
Net interest income, FTE basis (non-GAAP) (1) for comparative period | $ | 549,574 | $ | 505,727 | $ | 1,446,207 | |||||||||||
| Change due to mix and growth of earning assets and interest-bearing liabilities (volume) | 20,005 | 60,831 | 194,709 | ||||||||||||||
| Change due to interest rate fluctuations (rate) | (5,713) | 3,281 | 13,168 | ||||||||||||||
| Change due to number of days in each period | 5,973 | — | (5,298) | ||||||||||||||
| Less: FTE adjustment | (2,829) | (2,829) | (8,608) | ||||||||||||||
Net interest income (GAAP) (1) for the period ended September 30, 2025 | $ | 567,010 | $ | 567,010 | $ | 1,640,178 | |||||||||||
| FTE adjustment | 2,829 | 2,829 | 8,608 | ||||||||||||||
Net interest income, FTE basis (non-GAAP) (1) | $ | 569,839 | $ | 569,839 | $ | 1,648,786 | |||||||||||
| Three Months Ended | $ Change | % Change | |||||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | September 30, 2024 | |||||||||||||||||||||
| Brokerage | $ | 4,426 | $ | 6,139 | $ | (1,713) | (28) | % | |||||||||||||||
| Trust and asset management | 32,762 | 31,085 | 1,677 | 5 | |||||||||||||||||||
Total wealth management (1) | 37,188 | 37,224 | (36) | 0 | |||||||||||||||||||
| Mortgage banking | 24,451 | 15,974 | 8,477 | 53 | |||||||||||||||||||
| Service charges on deposit accounts | 19,825 | 16,430 | 3,395 | 21 | |||||||||||||||||||
| Gains on investment securities, net | 2,972 | 3,189 | (217) | (7) | |||||||||||||||||||
| Fees from covered call options | 5,619 | 988 | 4,631 | NM | |||||||||||||||||||
| Trading gains (losses), net | 172 | (130) | 302 | NM | |||||||||||||||||||
| Operating lease income, net | 15,466 | 15,335 | 131 | 1 | |||||||||||||||||||
| Other: | |||||||||||||||||||||||
| Interest rate swap fees | 3,909 | 2,914 | 995 | 34 | |||||||||||||||||||
| BOLI | 1,591 | 1,517 | 74 | 5 | |||||||||||||||||||
| Administrative services | 1,240 | 1,450 | (210) | (14) | |||||||||||||||||||
| Foreign currency remeasurement (losses) gains | (416) | 696 | (1,112) | NM | |||||||||||||||||||
| Changes in fair value on EBOs and loans held-for-investment | 1,452 | 518 | 934 | NM | |||||||||||||||||||
| Early pay-offs of capital leases | 519 | 532 | (13) | (2) | |||||||||||||||||||
| Miscellaneous | 16,839 | 16,510 | 329 | 2 | |||||||||||||||||||
| Total Other | 25,134 | 24,137 | 997 | 4 | |||||||||||||||||||
| Total Non-interest Income | $ | 130,827 | $ | 113,147 | $ | 17,680 | 16 | % | |||||||||||||||
| Nine Months Ended | $ Change | % Change | |||||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | September 30, 2024 | |||||||||||||||||||||
| Brokerage | $ | 13,395 | $ | 17,283 | $ | (3,888) | (22) | % | |||||||||||||||
| Trust and asset management | 94,656 | 90,169 | 4,487 | 5 | |||||||||||||||||||
Total wealth management (1) | 108,051 | 107,452 | 599 | 1 | |||||||||||||||||||
| Mortgage banking | 68,150 | 72,761 | (4,611) | (6) | |||||||||||||||||||
| Service charges on deposit accounts | 58,689 | 46,787 | 11,902 | 25 | |||||||||||||||||||
| Gains on investment securities, net | 6,818 | 233 | 6,585 | NM | |||||||||||||||||||
| Fees from covered call options | 14,689 | 7,891 | 6,798 | 86 | |||||||||||||||||||
| Trading gains, net | 259 | 617 | (358) | (58) | |||||||||||||||||||
| Operating lease income, net | 45,919 | 43,383 | 2,536 | 6 | |||||||||||||||||||
| Other: | |||||||||||||||||||||||
| Interest rate swap fees | 9,188 | 9,134 | 54 | 1 | |||||||||||||||||||
| BOLI | 4,644 | 4,519 | 125 | 3 | |||||||||||||||||||
| Administrative services | 3,948 | 3,989 | (41) | (1) | |||||||||||||||||||
| Foreign currency remeasurement gains (losses) | 59 | (620) | 679 | NM | |||||||||||||||||||
| Changes in fair value on EBOs and loans held-for-investment | 2,007 | 683 | 1,324 | NM | |||||||||||||||||||
| Early pay-offs of capital leases | 1,687 | 1,355 | 332 | 25 | |||||||||||||||||||
| Miscellaneous | 47,442 | 76,690 | (29,248) | (38) | |||||||||||||||||||
| Total Other | 68,975 | 95,750 | (26,775) | (28) | |||||||||||||||||||
| Total Non-interest Income | $ | 371,550 | $ | 374,874 | $ | (3,324) | (1) | % | |||||||||||||||
| Three Months Ended | Nine Months Ended | |||||||||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | ||||||||||||||||||||||
| Originations: | ||||||||||||||||||||||||||
| Retail originations | $ | 505,793 | $ | 527,408 | $ | 1,378,020 | $ | 1,403,306 | ||||||||||||||||||
| Veterans First originations | 137,600 | 239,369 | 407,372 | 561,270 | ||||||||||||||||||||||
| Total originations for sale (A) | $ | 643,393 | $ | 766,777 | $ | 1,785,392 | $ | 1,964,576 | ||||||||||||||||||
| Originations for investment | 351,012 | 218,984 | 991,115 | 663,561 | ||||||||||||||||||||||
| Total originations | $ | 994,405 | $ | 985,761 | $ | 2,776,507 | $ | 2,628,137 | ||||||||||||||||||
| As percentage of originations for sale: | ||||||||||||||||||||||||||
| Retail originations | 79 | % | 69 | % | 77 | % | 71 | % | ||||||||||||||||||
| Veterans First originations | 21 | 31 | 23 | 29 | ||||||||||||||||||||||
| Purchases | 77 | % | 72 | % | 76 | % | 78 | % | ||||||||||||||||||
| Refinances | 23 | 28 | 24 | 22 | ||||||||||||||||||||||
| Production Margin: | ||||||||||||||||||||||||||
Production revenue (B) (1) | $ | 15,388 | $ | 13,113 | $ | 38,709 | $ | 41,538 | ||||||||||||||||||
| Total originations for sale (A) | $ | 643,393 | $ | 766,777 | $ | 1,785,392 | $ | 1,964,576 | ||||||||||||||||||
Add: Current period end mandatory interest rate lock commitments to fund originations for sale (2) | 307,932 | 272,072 | 307,932 | 272,072 | ||||||||||||||||||||||
Less: Prior period end mandatory interest rate lock commitments to fund originations for sale (2) | 163,664 | 222,738 | 103,946 | 119,624 | ||||||||||||||||||||||
| Total mortgage production volume (C) | $ | 787,661 | $ | 816,111 | $ | 1,989,378 | $ | 2,117,024 | ||||||||||||||||||
| Production margin (B/C) | 1.95 | % | 1.61 | % | 1.95 | % | 1.96 | % | ||||||||||||||||||
| Mortgage Servicing: | ||||||||||||||||||||||||||
| Loans serviced for others (D) | $ | 12,524,131 | $ | 12,253,361 | ||||||||||||||||||||||
| MSRs, at fair value (E) | 190,938 | 186,308 | ||||||||||||||||||||||||
| Percentage of MSRs to loans serviced for others (E/D) | 1.52 | % | 1.52 | % | ||||||||||||||||||||||
| Servicing income | $ | 10,112 | $ | 10,809 | $ | 31,243 | $ | 31,893 | ||||||||||||||||||
| MSR Fair Value Asset Activity | ||||||||||||||||||||||||||
| MSR - FV at Beginning of Period | $ | 193,061 | $ | 204,610 | $ | 203,788 | $ | 192,456 | ||||||||||||||||||
| MSR - current period capitalization | 5,829 | 6,357 | 16,834 | 19,959 | ||||||||||||||||||||||
| MSR - collection of expected cash flows - paydowns | (1,554) | (1,598) | (4,660) | (4,546) | ||||||||||||||||||||||
| MSR - collection of expected cash flows - payoffs and repurchases | (4,050) | (5,730) | (11,196) | (12,702) | ||||||||||||||||||||||
| MSR - changes in fair value model assumptions | (2,348) | (17,331) | (13,828) | (8,859) | ||||||||||||||||||||||
| MSR Fair Value at end of period | $ | 190,938 | $ | 186,308 | $ | 190,938 | $ | 186,308 | ||||||||||||||||||
| Summary of Mortgage Banking Revenue | ||||||||||||||||||||||||||
| Operational: | ||||||||||||||||||||||||||
Production revenue (1) | $ | 15,388 | $ | 13,113 | $ | 38,709 | $ | 41,538 | ||||||||||||||||||
| MSR - Current period capitalization | 5,829 | 6,357 | 16,834 | 19,959 | ||||||||||||||||||||||
| MSR - Collection of expected cash flows - paydowns | (1,554) | (1,598) | (4,660) | (4,546) | ||||||||||||||||||||||
| MSR - Collection of expected cash flows - pay offs | (4,050) | (5,730) | (11,196) | (12,702) | ||||||||||||||||||||||
| Servicing Income | 10,112 | 10,809 | 31,243 | 31,893 | ||||||||||||||||||||||
| Other Revenue | (345) | (67) | (596) | (46) | ||||||||||||||||||||||
| Total operational mortgage banking revenue | $ | 25,380 | $ | 22,884 | $ | 70,334 | $ | 76,096 | ||||||||||||||||||
| Fair Value: | ||||||||||||||||||||||||||
| MSR - changes in fair value model assumptions | $ | (2,348) | $ | (17,331) | $ | (13,828) | $ | (8,859) | ||||||||||||||||||
| Gain on derivative contract held as an economic hedge, net | 265 | 6,892 | 7,697 | 3,543 | ||||||||||||||||||||||
| Changes in FV on early buy-out loans guaranteed by US Govt (HFS) | 1,154 | 3,529 | 3,947 | 1,981 | ||||||||||||||||||||||
| Total fair value mortgage banking revenue | $ | (929) | $ | (6,910) | $ | (2,184) | $ | (3,335) | ||||||||||||||||||
| Total mortgage banking revenue | $ | 24,451 | $ | 15,974 | $ | 68,150 | $ | 72,761 | ||||||||||||||||||
| Three Months Ended | $ Change | % Change | |||||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | September 30, 2024 | |||||||||||||||||||||
| Salaries and employee benefits: | |||||||||||||||||||||||
| Salaries | $ | 124,623 | $ | 118,971 | $ | 5,652 | 5 | % | |||||||||||||||
| Commissions and incentive compensation | 56,244 | 57,575 | (1,331) | (2) | |||||||||||||||||||
| Benefits | 38,801 | 34,715 | 4,086 | 12 | |||||||||||||||||||
| Total salaries and employee benefits | 219,668 | 211,261 | 8,407 | 4 | |||||||||||||||||||
| Software and equipment | 35,027 | 31,574 | 3,453 | 11 | |||||||||||||||||||
| Operating lease equipment | 10,409 | 10,518 | (109) | (1) | |||||||||||||||||||
| Occupancy, net | 20,809 | 19,945 | 864 | 4 | |||||||||||||||||||
| Data processing | 11,329 | 9,984 | 1,345 | 13 | |||||||||||||||||||
| Advertising and marketing | 19,027 | 18,239 | 788 | 4 | |||||||||||||||||||
| Professional fees | 7,465 | 9,783 | (2,318) | (24) | |||||||||||||||||||
| Amortization of other acquisition-related intangible assets | 5,196 | 4,042 | 1,154 | 29 | |||||||||||||||||||
| FDIC insurance | 11,418 | 10,512 | 906 | 9 | |||||||||||||||||||
| OREO expense, net | 262 | (938) | 1,200 | NM | |||||||||||||||||||
| Other: | |||||||||||||||||||||||
| Lending expenses, net of deferred originations costs | 6,169 | 4,995 | 1,174 | 24 | |||||||||||||||||||
| Travel and entertainment | 6,029 | 5,364 | 665 | 12 | |||||||||||||||||||
| Miscellaneous | 27,220 | 25,408 | 1,812 | 7 | |||||||||||||||||||
| Total other | 39,418 | 35,767 | 3,651 | 10 | |||||||||||||||||||
| Total Non-interest Expense | $ | 380,028 | $ | 360,687 | $ | 19,341 | 5 | % | |||||||||||||||
| Nine Months Ended | $ Change | % Change | |||||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | September 30, 2024 | |||||||||||||||||||||
| Salaries and employee benefits: | |||||||||||||||||||||||
| Salaries | $ | 371,714 | $ | 345,003 | $ | 26,711 | 8 | % | |||||||||||||||
| Commissions and incentive compensation | 164,651 | 160,727 | 3,924 | 2 | |||||||||||||||||||
| Benefits | 114,370 | 99,245 | 15,125 | 15 | |||||||||||||||||||
| Total salaries and employee benefits | 650,735 | 604,975 | 45,760 | 8 | |||||||||||||||||||
| Software and equipment | 106,266 | 88,536 | 17,730 | 20 | |||||||||||||||||||
| Operating lease equipment | 31,637 | 32,035 | (398) | (1) | |||||||||||||||||||
| Occupancy, net | 61,815 | 58,616 | 3,199 | 5 | |||||||||||||||||||
| Data processing | 34,713 | 28,779 | 5,934 | 21 | |||||||||||||||||||
| Advertising and marketing | 50,060 | 48,715 | 1,345 | 3 | |||||||||||||||||||
| Professional fees | 25,752 | 29,303 | (3,551) | (12) | |||||||||||||||||||
| Amortization of other acquisition-related intangible assets | 16,394 | 6,322 | 10,072 | NM | |||||||||||||||||||
| FDIC insurance | 33,315 | 30,322 | 2,993 | 10 | |||||||||||||||||||
| FDIC insurance - special assessment | — | 5,156 | (5,156) | (100) | |||||||||||||||||||
| OREO expense, net | 1,410 | (805) | 2,215 | NM | |||||||||||||||||||
| Other: | |||||||||||||||||||||||
| Lending expenses, net of deferred originations costs | 16,904 | 15,408 | 1,496 | 10 | |||||||||||||||||||
| Travel and entertainment | 17,325 | 15,301 | 2,024 | 13 | |||||||||||||||||||
| Miscellaneous | 81,253 | 71,522 | 9,731 | 14 | |||||||||||||||||||
| Total other | 115,482 | 102,231 | 13,251 | 13 | |||||||||||||||||||
| Total Non-interest Expense | $ | 1,127,579 | $ | 1,034,185 | $ | 93,394 | 9 | % | |||||||||||||||
| Three Months Ended | |||||||||||||||||||||||||||||||||||
| September 30, 2025 | June 30, 2025 | September 30, 2024 | |||||||||||||||||||||||||||||||||
| (Dollars in thousands) | Balance | Percent | Balance | Percent | Balance | Percent | |||||||||||||||||||||||||||||
| Mortgage loans held-for-sale | $ | 295,365 | 0 | % | $ | 310,534 | 0 | % | $ | 376,251 | 1 | % | |||||||||||||||||||||||
| Loans, net of unearned income | |||||||||||||||||||||||||||||||||||
| Commercial | $ | 16,239,631 | 25 | % | $ | 15,909,323 | 26 | % | $ | 14,544,139 | 25 | % | |||||||||||||||||||||||
Commercial real estate | 13,415,933 | 21 | 13,095,845 | 21 | 12,502,355 | 22 | |||||||||||||||||||||||||||||
Home equity | 475,046 | 1 | 459,033 | 1 | 402,868 | 1 | |||||||||||||||||||||||||||||
Residential real estate | 3,974,900 | 6 | 3,700,917 | 6 | 3,171,131 | 6 | |||||||||||||||||||||||||||||
| Premium finance receivables—property & casualty | 8,524,414 | 13 | 7,762,161 | 12 | 7,218,294 | 13 | |||||||||||||||||||||||||||||
| Premium finance receivables—life insurance | 8,638,561 | 13 | 8,455,443 | 14 | 7,997,721 | 14 | |||||||||||||||||||||||||||||
Other loans | 135,081 | 1 | 134,913 | 0 | 84,078 | 0 | |||||||||||||||||||||||||||||
Total average loans (1) | $ | 51,403,566 | 80 | % | $ | 49,517,635 | 80 | % | $ | 45,920,586 | 81 | % | |||||||||||||||||||||||
Liquidity management assets (2) | 12,936,951 | 20 | 12,391,760 | 20 | 10,954,011 | 18 | |||||||||||||||||||||||||||||
Other earning assets (3) | — | 0 | — | 0 | 17,542 | 0 | |||||||||||||||||||||||||||||
Total average earning assets | $ | 64,635,882 | 100 | % | $ | 62,219,929 | 100 | % | $ | 57,268,390 | 100 | % | |||||||||||||||||||||||
Total average assets | $ | 68,303,036 | $ | 65,840,345 | $ | 60,915,283 | |||||||||||||||||||||||||||||
| Total average earning assets to total average assets | 95 | % | 95 | % | 94 | % | |||||||||||||||||||||||||||||
| Nine Months Ended | |||||||||||||||||||||||
| September 30, 2025 | September 30, 2024 | ||||||||||||||||||||||
| (Dollars in thousands) | Balance | Percent | Balance | Percent | |||||||||||||||||||
| Mortgage loans held-for-sale | $ | 297,568 | 0 | % | $ | 338,061 | 1 | % | |||||||||||||||
| Loans: | |||||||||||||||||||||||
| Commercial | $ | 15,840,773 | 25 | % | $ | 13,728,791 | 25 | % | |||||||||||||||
Commercial real estate | 13,149,369 | 21 | 11,942,029 | 22 | |||||||||||||||||||
Home equity | 461,153 | 1 | 365,150 | 1 | |||||||||||||||||||
Residential real estate | 3,740,920 | 6 | 2,932,839 | 5 | |||||||||||||||||||
| Premium finance receivables—property & casualty | 7,831,182 | 13 | 7,017,145 | 13 | |||||||||||||||||||
| Premium finance receivables—life insurance | 8,448,993 | 14 | 7,896,080 | 14 | |||||||||||||||||||
Other loans | 125,548 | 0 | 81,745 | 0 | |||||||||||||||||||
Total average loans (1) | $ | 49,597,938 | 80 | % | $ | 43,963,779 | 80 | % | |||||||||||||||
Liquidity management assets (2) | 12,516,056 | 20 | 10,246,473 | 19 | |||||||||||||||||||
Other earning assets (3) | 4,332 | 0 | 15,966 | 0 | |||||||||||||||||||
Total average earning assets | $ | 62,415,894 | 100 | % | $ | 54,564,279 | 100 | % | |||||||||||||||
Total average assets | $ | 66,098,845 | $ | 58,014,347 | |||||||||||||||||||
| Total average earning assets to total average assets | 94 | % | 94 | % | |||||||||||||||||||
| As of September 30, 2025 | One year or less | From one to five years | From five to fifteen years | After fifteen years | |||||||||||||||||||||||||
| (In thousands) | Total | ||||||||||||||||||||||||||||
| Commercial | |||||||||||||||||||||||||||||
| Fixed rate | $ | 465,635 | $ | 3,851,843 | $ | 2,154,642 | $ | 17,113 | $ | 6,489,233 | |||||||||||||||||||
| Variable rate | 10,054,366 | 743 | — | — | 10,055,109 | ||||||||||||||||||||||||
| Total commercial | $ | 10,520,001 | $ | 3,852,586 | $ | 2,154,642 | $ | 17,113 | $ | 16,544,342 | |||||||||||||||||||
| Commercial real estate | |||||||||||||||||||||||||||||
| Fixed rate | $ | 771,993 | $ | 2,629,379 | $ | 358,703 | $ | 68,729 | $ | 3,828,804 | |||||||||||||||||||
| Variable rate | 9,779,638 | 10,700 | 65 | — | 9,790,403 | ||||||||||||||||||||||||
| Total commercial real estate | $ | 10,551,631 | $ | 2,640,079 | $ | 358,768 | $ | 68,729 | $ | 13,619,207 | |||||||||||||||||||
| Home equity | |||||||||||||||||||||||||||||
| Fixed rate | $ | 9,470 | $ | 464 | $ | — | $ | 13 | $ | 9,947 | |||||||||||||||||||
| Variable rate | 474,255 | — | — | — | 474,255 | ||||||||||||||||||||||||
| Total home equity | $ | 483,725 | $ | 464 | $ | — | $ | 13 | $ | 484,202 | |||||||||||||||||||
| Residential real estate | |||||||||||||||||||||||||||||
| Fixed rate | $ | 17,018 | $ | 4,563 | $ | 70,142 | $ | 1,040,869 | $ | 1,132,592 | |||||||||||||||||||
| Variable rate | 117,542 | 736,051 | 2,157,685 | — | 3,011,278 | ||||||||||||||||||||||||
| Total residential real estate | $ | 134,560 | $ | 740,614 | $ | 2,227,827 | $ | 1,040,869 | $ | 4,143,870 | |||||||||||||||||||
| Premium finance receivables - property & casualty | |||||||||||||||||||||||||||||
| Fixed rate | $ | 8,275,798 | $ | 90,494 | $ | — | $ | — | $ | 8,366,292 | |||||||||||||||||||
| Variable rate | — | — | — | — | — | ||||||||||||||||||||||||
| Total premium finance receivables - property & casualty | $ | 8,275,798 | $ | 90,494 | $ | — | $ | — | $ | 8,366,292 | |||||||||||||||||||
| Premium finance receivables - life insurance | |||||||||||||||||||||||||||||
| Fixed rate | $ | 255,894 | $ | 140,954 | $ | 4,000 | $ | — | $ | 400,848 | |||||||||||||||||||
| Variable rate | 8,357,705 | — | — | — | 8,357,705 | ||||||||||||||||||||||||
| Total premium finance receivables - life insurance | $ | 8,613,599 | $ | 140,954 | $ | 4,000 | $ | — | $ | 8,758,553 | |||||||||||||||||||
| Consumer and other | |||||||||||||||||||||||||||||
| Fixed rate | $ | 65,657 | $ | 8,660 | $ | 1,045 | $ | 853 | $ | 76,215 | |||||||||||||||||||
| Variable rate | 70,801 | — | — | — | 70,801 | ||||||||||||||||||||||||
| Total consumer and other | $ | 136,458 | $ | 8,660 | $ | 1,045 | $ | 853 | $ | 147,016 | |||||||||||||||||||
| Total per category | |||||||||||||||||||||||||||||
| Fixed rate | $ | 9,861,465 | $ | 6,726,357 | $ | 2,588,532 | $ | 1,127,577 | $ | 20,303,931 | |||||||||||||||||||
| Variable rate | 28,854,307 | 747,494 | 2,157,750 | — | 31,759,551 | ||||||||||||||||||||||||
| Total loans, net of unearned income | $ | 38,715,772 | $ | 7,473,851 | $ | 4,746,282 | $ | 1,127,577 | $ | 52,063,482 | |||||||||||||||||||
Less: Existing cash flow hedging derivatives (1) | (5,650,000) | ||||||||||||||||||||||||||||
| Total loans repricing or maturing in one year or less, adjusted for cash flow hedging activity | $ | 33,065,772 | |||||||||||||||||||||||||||
| Variable Rate Loan Pricing by Index: | |||||||||||||||||||||||||||||
SOFR tenors (2) | $ | 20,295,819 | |||||||||||||||||||||||||||
12- month CMT (3) | 7,284,381 | ||||||||||||||||||||||||||||
| Prime | 3,083,193 | ||||||||||||||||||||||||||||
| Fed Funds | 768,000 | ||||||||||||||||||||||||||||
| Other U.S. Treasury tenors | 191,629 | ||||||||||||||||||||||||||||
| Other | 136,529 | ||||||||||||||||||||||||||||
| Total variable rate | $ | 31,759,551 | |||||||||||||||||||||||||||
| As of September 30, 2025 | As of September 30, 2024 | ||||||||||||||||||||||||||||||||||
| Allowance | Allowance | ||||||||||||||||||||||||||||||||||
| % of | For Credit | % of | For Credit | ||||||||||||||||||||||||||||||||
| Total | Losses | Total | Losses | ||||||||||||||||||||||||||||||||
| (Dollars in thousands) | Balance | Balance | Allocation | Balance | Balance | Allocation | |||||||||||||||||||||||||||||
| Commercial | $ | 16,544,342 | 54.8 | % | $ | 189,476 | $ | 15,247,693 | 54.4 | % | $ | 171,598 | |||||||||||||||||||||||
| Commercial Real Estate: | |||||||||||||||||||||||||||||||||||
| Construction and development | $ | 2,658,153 | 8.8 | % | $ | 78,765 | $ | 2,403,690 | 8.6 | % | $ | 97,949 | |||||||||||||||||||||||
| Non-construction | 10,961,054 | 36.4 | % | 151,712 | 10,389,727 | 37.0 | 133,195 | ||||||||||||||||||||||||||||
| Total commercial real estate | $ | 13,619,207 | 45.2 | % | $ | 230,477 | $ | 12,793,417 | 45.6 | % | $ | 231,144 | |||||||||||||||||||||||
| Total commercial and commercial real estate | $ | 30,163,549 | 100.0 | % | $ | 419,953 | $ | 28,041,110 | 100.0 | % | $ | 402,742 | |||||||||||||||||||||||
| Commercial real estate - primary collateral location by state: | |||||||||||||||||||||||||||||||||||
| Illinois | $ | 7,096,808 | 52.1 | % | $ | 7,154,012 | 55.9 | % | |||||||||||||||||||||||||||
| Wisconsin | 893,812 | 6.6 | 868,844 | 6.8 | |||||||||||||||||||||||||||||||
| Michigan | 875,395 | 6.4 | 854,189 | 6.7 | |||||||||||||||||||||||||||||||
| Total primary markets | $ | 8,866,015 | 65.1 | % | $ | 8,877,045 | 69.4 | % | |||||||||||||||||||||||||||
| Florida | 486,728 | 3.6 | 423,517 | 3.3 | |||||||||||||||||||||||||||||||
| Indiana | 464,808 | 3.4 | 445,417 | 3.5 | |||||||||||||||||||||||||||||||
| Georgia | 333,260 | 2.5 | 228,613 | 1.8 | |||||||||||||||||||||||||||||||
| Texas | 319,292 | 2.3 | 281,057 | 2.2 | |||||||||||||||||||||||||||||||
| California | 291,088 | 2.1 | 259,341 | 2.0 | |||||||||||||||||||||||||||||||
| Colorado | 288,412 | 2.1 | 251,247 | 2.0 | |||||||||||||||||||||||||||||||
| Tennessee | 276,393 | 2.0 | 289,989 | 2.3 | |||||||||||||||||||||||||||||||
| Arizona | 255,994 | 1.9 | 205,835 | 1.6 | |||||||||||||||||||||||||||||||
| Other | 2,037,217 | 15.0 | 1,531,356 | 11.9 | |||||||||||||||||||||||||||||||
| Total commercial real estate | $ | 13,619,207 | 100.0 | % | $ | 12,793,417 | 100.0 | % | |||||||||||||||||||||||||||
| (In thousands) | September 30, 2025 | September 30, 2024 | ||||||||||||||||||||||||||||||||||||
| Commercial Real Estate: | Owner Occupied | Non-Owner Occupied | Total | % of Total | Average Size of Loan | Owner Occupied | Non-Owner Occupied | Total | % of Total | Average Size of Loan | ||||||||||||||||||||||||||||
| Residential construction | $ | 3,201 | $ | 57,722 | $ | 60,923 | 1 | % | $ | 655 | $ | 1,508 | $ | 71,580 | $ | 73,088 | 1 | % | $ | 620 | ||||||||||||||||||
| Commercial construction | 198,522 | 2,075,023 | 2,273,545 | 17 | 5,766 | 180,912 | 1,803,328 | 1,984,240 | 15 | 4,450 | ||||||||||||||||||||||||||||
| Land | 6,312 | 317,373 | 323,685 | 2 | 1,850 | 6,411 | 339,951 | 346,362 | 3 | 1,786 | ||||||||||||||||||||||||||||
| Office | 277,351 | 1,300,857 | 1,578,208 | 12 | 1,468 | 286,821 | 1,388,465 | 1,675,286 | 13 | 1,508 | ||||||||||||||||||||||||||||
| Industrial | 955,660 | 1,956,887 | 2,912,547 | 21 | 1,938 | 974,064 | 1,553,868 | 2,527,932 | 20 | 1,719 | ||||||||||||||||||||||||||||
| Retail | 349,754 | 1,129,107 | 1,478,861 | 11 | 1,275 | 355,867 | 1,048,719 | 1,404,586 | 11 | 1,176 | ||||||||||||||||||||||||||||
| Multi-family | 94,211 | 3,212,386 | 3,306,597 | 24 | 1,447 | 103,166 | 3,090,173 | 3,193,339 | 25 | 1,336 | ||||||||||||||||||||||||||||
| Mixed use and other | 595,637 | 1,089,204 | 1,684,841 | 12 | 1,219 | 548,315 | 1,040,269 | 1,588,584 | 12 | 1,151 | ||||||||||||||||||||||||||||
| Total commercial real estate | $ | 2,480,648 | $ | 11,138,559 | $ | 13,619,207 | 100 | % | $ | 1,688 | $ | 2,457,064 | $ | 10,336,353 | $ | 12,793,417 | 100 | % | $ | 1,541 | ||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | June 30, 2025 | September 30, 2024 | ||||||||||||||
| Loans past due greater than 90 days and still accruing: | |||||||||||||||||
| Commercial | $ | — | $ | — | $ | 20 | |||||||||||
| Commercial real estate | — | — | 225 | ||||||||||||||
| Home equity | — | — | — | ||||||||||||||
| Residential real estate | — | — | — | ||||||||||||||
| Premium finance receivables—property and casualty | 13,006 | 14,350 | 18,235 | ||||||||||||||
| Premium finance receivables—life insurance | — | 327 | — | ||||||||||||||
| Consumer and other | 60 | 184 | 148 | ||||||||||||||
| Total loans past due greater than 90 days and still accruing | 13,066 | 14,861 | 18,628 | ||||||||||||||
| Nonaccrual loans: | |||||||||||||||||
| Commercial | 66,577 | 80,877 | 63,826 | ||||||||||||||
| Commercial real estate | 28,202 | 32,828 | 42,071 | ||||||||||||||
| Home equity | 1,295 | 1,780 | 1,122 | ||||||||||||||
| Residential real estate | 28,942 | 28,047 | 17,959 | ||||||||||||||
| Premium finance receivables—property and casualty | 24,512 | 30,404 | 36,079 | ||||||||||||||
| Premium finance receivables—life insurance | — | — | — | ||||||||||||||
| Consumer and other | 38 | 41 | 2 | ||||||||||||||
| Total nonaccrual loans | 149,566 | 173,977 | 161,059 | ||||||||||||||
| Total non-performing loans: | |||||||||||||||||
| Commercial | 66,577 | 80,877 | 63,846 | ||||||||||||||
| Commercial real estate | 28,202 | 32,828 | 42,296 | ||||||||||||||
| Home equity | 1,295 | 1,780 | 1,122 | ||||||||||||||
| Residential real estate | 28,942 | 28,047 | 17,959 | ||||||||||||||
| Premium finance receivables—property and casualty | 37,518 | 44,754 | 54,314 | ||||||||||||||
| Premium finance receivables—life insurance | — | 327 | — | ||||||||||||||
| Consumer and other | 98 | 225 | 150 | ||||||||||||||
| Total non-performing loans | $ | 162,632 | $ | 188,838 | $ | 179,687 | |||||||||||
| Other real estate owned | 24,832 | 23,615 | 13,682 | ||||||||||||||
| Total non-performing assets | $ | 187,464 | $ | 212,453 | $ | 193,369 | |||||||||||
| Total non-performing loans by category as a percent of its own respective category’s period-end balance: | |||||||||||||||||
| Commercial | 0.40 | % | 0.49 | % | 0.42 | % | |||||||||||
| Commercial real estate | 0.21 | 0.25 | 0.33 | ||||||||||||||
| Home equity | 0.27 | 0.38 | 0.26 | ||||||||||||||
| Residential real estate | 0.70 | 0.71 | 0.53 | ||||||||||||||
| Premium finance receivables—property and casualty | 0.45 | 0.54 | 0.76 | ||||||||||||||
| Premium finance receivables—life insurance | — | 0.00 | — | ||||||||||||||
| Consumer and other | 0.07 | 0.19 | 0.18 | ||||||||||||||
| Total non-performing loans | 0.31 | % | 0.37 | % | 0.38 | % | |||||||||||
| Total non-performing assets, as a percentage of total assets | 0.27 | % | 0.31 | % | 0.30 | % | |||||||||||
| Total nonaccrual loans as a percentage of total loans | 0.29 | % | 0.34 | % | 0.34 | % | |||||||||||
| Allowance for credit losses as a percentage of nonaccrual loans | 303.67 | % | 262.71 | % | 270.53 | % | |||||||||||
| Three Months Ended | Nine Months Ended | ||||||||||||||||||||||
| September 30, | September 30, | September 30, | September 30, | ||||||||||||||||||||
| (In thousands) | 2025 | 2024 | 2025 | 2024 | |||||||||||||||||||
| Balance at beginning of period | $ | 188,838 | $ | 174,251 | $ | 170,823 | $ | 139,030 | |||||||||||||||
| Additions from becoming non-performing in the respective period | 34,805 | 42,335 | 111,177 | 119,853 | |||||||||||||||||||
| Additions from assets acquired in the respective period | — | 189 | — | 189 | |||||||||||||||||||
| Return to performing status | (3,399) | (362) | (11,502) | (1,764) | |||||||||||||||||||
| Payments received | (28,052) | (10,894) | (49,619) | (28,841) | |||||||||||||||||||
| Transfer to OREO to other assets | (348) | (3,680) | (2,595) | (12,006) | |||||||||||||||||||
| Charge-offs | (21,526) | (21,211) | (41,860) | (43,694) | |||||||||||||||||||
| Net change for premium finance receivables | (7,686) | (941) | (13,792) | 6,920 | |||||||||||||||||||
| Balance at end of period | $ | 162,632 | $ | 179,687 | $ | 162,632 | $ | 179,687 | |||||||||||||||
| Three Months Ended | Nine Months Ended | ||||||||||||||||||||||
| (Dollars in thousands) | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | |||||||||||||||||||
| Allowance for credit losses at beginning of period | $ | 457,063 | $ | 437,069 | $ | 436,603 | $ | 427,265 | |||||||||||||||
| Provision for credit losses - other | 21,771 | 6,799 | 68,027 | 68,389 | |||||||||||||||||||
| Provision for credit losses - Day 1 on non-PCD assets acquired during the period | — | 15,547 | — | 15,547 | |||||||||||||||||||
| Initial allowance for credit losses recognized on PCD assets acquired during the period | — | 3,004 | — | 3,004 | |||||||||||||||||||
| Other adjustments | (88) | 30 | 96 | (20) | |||||||||||||||||||
| Charge-offs: | |||||||||||||||||||||||
| Commercial | 21,597 | 22,975 | 37,467 | 43,774 | |||||||||||||||||||
| Commercial real estate | 144 | 95 | 6,309 | 21,090 | |||||||||||||||||||
| Home equity | 27 | — | 138 | 74 | |||||||||||||||||||
| Residential real estate | 26 | — | 26 | 61 | |||||||||||||||||||
| Premium finance receivables - property & casualty | 6,860 | 7,790 | 20,320 | 24,214 | |||||||||||||||||||
| Premium finance receivables - life insurance | 18 | 4 | 30 | 4 | |||||||||||||||||||
| Consumer and other | 174 | 154 | 500 | 398 | |||||||||||||||||||
| Total charge-offs | 28,846 | 31,018 | 64,790 | 89,615 | |||||||||||||||||||
| Recoveries: | |||||||||||||||||||||||
| Commercial | 1,449 | 649 | 4,124 | 2,078 | |||||||||||||||||||
| Commercial real estate | 241 | 30 | 263 | 151 | |||||||||||||||||||
| Home equity | 104 | 101 | 350 | 165 | |||||||||||||||||||
| Residential real estate | 1 | 5 | 139 | 15 | |||||||||||||||||||
| Premium finance receivables - property & casualty | 2,459 | 3,436 | 9,281 | 8,613 | |||||||||||||||||||
| Premium finance receivables - life insurance | — | 41 | — | 54 | |||||||||||||||||||
| Consumer and other | 37 | 21 | 98 | 68 | |||||||||||||||||||
| Total recoveries | 4,291 | 4,283 | 14,255 | 11,144 | |||||||||||||||||||
| Net charge-offs | (24,555) | (26,735) | (50,535) | (78,471) | |||||||||||||||||||
| Allowance for credit losses at period end | $ | 454,191 | $ | 435,714 | $ | 454,191 | $ | 435,714 | |||||||||||||||
| Annualized net charge-offs (recoveries) by category as a percentage of its own respective category’s average: | |||||||||||||||||||||||
| Commercial | 0.49 | % | 0.61 | % | 0.28 | % | 0.41 | % | |||||||||||||||
| Commercial real estate | (0.00) | 0.00 | 0.06 | 0.23 | |||||||||||||||||||
| Home equity | (0.06) | (0.10) | (0.06) | (0.03) | |||||||||||||||||||
| Residential real estate | 0.00 | 0.00 | (0.00) | 0.00 | |||||||||||||||||||
| Premium finance receivables - property & casualty | 0.20 | 0.24 | 0.19 | 0.30 | |||||||||||||||||||
| Premium finance receivables - life insurance | 0.00 | 0.00 | 0.00 | (0.00) | |||||||||||||||||||
| Consumer and other | 0.40 | 0.63 | 0.43 | 0.54 | |||||||||||||||||||
| Total loans, net of unearned income | 0.19 | % | 0.23 | % | 0.14 | % | 0.24 | % | |||||||||||||||
| Loans at period-end | $ | 52,063,482 | $ | 47,067,447 | |||||||||||||||||||
| Allowance for loan losses as a percentage of loans at period end | 0.74 | % | 0.77 | % | |||||||||||||||||||
| Allowance for loan and unfunded loan-related commitment losses as a percentage of loans at period end | 0.87 | 0.93 | |||||||||||||||||||||
| Three Months Ended | Nine Months Ended | |||||||||||||||||||||||||
| (In thousands) | September 30, 2025 | September 30, 2024 | September 30, 2025 | September 30, 2024 | ||||||||||||||||||||||
| Balance at beginning of period | $ | 23,615 | $ | 19,731 | $ | 23,116 | $ | 13,309 | ||||||||||||||||||
| Disposal/resolved | — | (9,729) | — | (11,481) | ||||||||||||||||||||||
| Transfers in at fair value, less costs to sell | 1,217 | 3,680 | 2,532 | 12,061 | ||||||||||||||||||||||
| Fair value adjustments | — | — | (816) | (207) | ||||||||||||||||||||||
| Balance at end of period | $ | 24,832 | $ | 13,682 | $ | 24,832 | $ | 13,682 | ||||||||||||||||||
| Period End | |||||||||||||||||
| (In thousands) | September 30, 2025 | June 30, 2025 | September 30, 2024 | ||||||||||||||
| Residential real estate | $ | — | $ | — | $ | — | |||||||||||
| Commercial real estate | 24,832 | 23,615 | 13,682 | ||||||||||||||
| Total | $ | 24,832 | $ | 23,615 | $ | 13,682 | |||||||||||
Time Certificates of Deposit Maturity/Re-pricing Analysis As of September 30, 2025 (Dollars in thousands) | Total Time Certificates of Deposits | Weighted-Average Rate of Maturing Time Certificates of Deposit | ||||||||||||
| 1-3 months | $ | 4,450,481 | 3.83 | % | ||||||||||
| 4-6 months | 3,165,121 | 3.72 | ||||||||||||
| 7-9 months | 1,489,181 | 3.64 | ||||||||||||
| 10-12 months | 973,156 | 3.79 | ||||||||||||
| 13-18 months | 196,146 | 3.13 | ||||||||||||
| 19-24 months | 79,669 | 3.00 | ||||||||||||
| 24+ months | 64,702 | 3.00 | ||||||||||||
| Total | $ | 10,418,456 | 3.74 | % | ||||||||||
| Three Months Ended | |||||||||||||||||||||||||||||||||||
| September 30, 2025 | June 30, 2025 | September 30, 2024 | |||||||||||||||||||||||||||||||||
| (Dollars in thousands) | Balance | Percent | Balance | Percent | Balance | Percent | |||||||||||||||||||||||||||||
| Non-interest-bearing | $ | 10,791,709 | 19 | % | $ | 10,643,798 | 20 | % | $ | 10,271,613 | 21 | % | |||||||||||||||||||||||
| NOW and interest-bearing demand deposits | 6,687,292 | 12 | 6,423,050 | 12 | 5,174,673 | 11 | |||||||||||||||||||||||||||||
| Wealth management deposits | 1,604,142 | 3 | 1,552,989 | 3 | 1,362,747 | 3 | |||||||||||||||||||||||||||||
| Money market | 19,431,021 | 35 | 18,184,754 | 34 | 16,436,111 | 34 | |||||||||||||||||||||||||||||
| Savings | 6,723,325 | 12 | 6,578,698 | 12 | 6,096,746 | 12 | |||||||||||||||||||||||||||||
| Time certificates of deposit | 10,319,719 | 19 | 9,841,702 | 19 | 9,598,109 | 19 | |||||||||||||||||||||||||||||
| Total average deposits | $ | 55,557,208 | 100 | % | $ | 53,224,991 | 100 | % | $ | 48,939,999 | 100 | % | |||||||||||||||||||||||
| September 30, | December 31, | ||||||||||||||||||||||||||||
| (Dollars in thousands) | 2025 | 2024 | 2024 | 2023 | 2022 | ||||||||||||||||||||||||
| Total deposits | $ | 56,711,381 | $ | 51,404,966 | $ | 52,512,349 | $ | 45,397,170 | $ | 42,902,544 | |||||||||||||||||||
| Brokered deposits | 3,914,074 | 4,080,401 | 3,598,102 | 4,216,718 | 3,174,093 | ||||||||||||||||||||||||
| Brokered deposits as a percentage of total deposits | 6.9 | % | 7.9 | % | 6.9 | % | 9.3 | % | 7.4 | % | |||||||||||||||||||
| Three Months Ended | |||||||||||||||||
| September 30, | June 30, | September 30, | |||||||||||||||
| (In thousands) | 2025 | 2025 | 2024 | ||||||||||||||
| FHLB advances | $ | 3,151,310 | $ | 3,151,310 | $ | 3,178,973 | |||||||||||
| Other borrowings: | |||||||||||||||||
Notes payable | 128,425 | 135,556 | 156,949 | ||||||||||||||
| Short-term borrowings | 24 | — | 37 | ||||||||||||||
| Secured borrowings | 430,265 | 403,622 | 407,993 | ||||||||||||||
| Other | 56,178 | 54,479 | 57,813 | ||||||||||||||
| Total other borrowings | $ | 614,892 | $ | 593,657 | $ | 622,792 | |||||||||||
| Subordinated notes | 298,481 | 298,398 | 298,135 | ||||||||||||||
| Junior subordinated debentures | 253,566 | 253,566 | 253,566 | ||||||||||||||
| Total other funding sources | $ | 4,318,249 | $ | 4,296,931 | $ | 4,353,466 | |||||||||||
September 30, 2025 (2) | June 30, 2025 (3) | September 30, 2024 | |||||||||||||||
| Tier 1 leverage ratio | 9.5 | % | 10.2 | % | 9.6 | % | |||||||||||
| Risk-based capital ratios: | |||||||||||||||||
| Tier 1 capital ratio | 10.9 | 11.5 | 10.6 | ||||||||||||||
| Common equity tier 1 capital ratio | 10.2 | 10.0 | 9.8 | ||||||||||||||
| Total capital ratio | 12.4 | 13.0 | 12.2 | ||||||||||||||
| Other ratio: | |||||||||||||||||
Total average equity-to-total average assets (1) | 10.2 | 10.4 | 9.8 | ||||||||||||||
| Minimum Capital Requirements | Minimum Ratio + Capital Conservation Buffer (1) | Minimum Well Capitalized (2) | |||||||||||||||
| Tier 1 leverage ratio | 4.0 | % | N/A | N/A | |||||||||||||
| Risk-based capital ratios: | |||||||||||||||||
| Tier 1 capital ratio | 6.0 | 8.5 | 6.0 | ||||||||||||||
| Common equity tier 1 capital ratio | 4.5 | 7.0 | N/A | ||||||||||||||
| Total capital ratio | 8.0 | 10.5 | 10.0 | ||||||||||||||
| Three Months Ended | |||||||||||
| (Dollars and shares in thousands, except per share data) | September 30, 2025 | December 31, 2025 | |||||||||
| Series D and Series E Preferred Stock Quarterly Dividend | $ | — | $ | — | |||||||
Series F Preferred Stock First Dividend (1) | (13,295) | — | |||||||||
Series F Preferred Stock Regular Quarterly Dividend (2) | — | (8,367) | |||||||||
| Series D Preferred Stock Issuance Costs (non-recurring) | (4,158) | — | |||||||||
| Series E Preferred Stock Issuance Costs (non-recurring) | (9,888) | — | |||||||||
| Total Impact | $ | (27,341) | $ | (8,367) | |||||||
Average diluted common shares (3) | 67,980 | 67,980 | |||||||||
| Diluted EPS Impact | $ | (0.40) | $ | (0.12) | |||||||
| Static Shock Scenarios | +200 Basis Points | +100 Basis Points | -100 Basis Points | -200 Basis Points | |||||||||||||||||||
| September 30, 2025 | (2.3) | % | (0.8) | % | 0.0 | % | (0.4) | % | |||||||||||||||
| June 30, 2025 | (1.5) | (0.4) | (0.2) | (1.2) | % | ||||||||||||||||||
| September 30, 2024 | 1.2 | 1.1 | 0.4 | (0.9) | % | ||||||||||||||||||
| Ramp Scenarios | +200 Basis Points | +100 Basis Points | -100 Basis Points | -200 Basis Points | |||||||||||||||||||
| September 30, 2025 | (0.2) | % | (0.1) | % | 0.1 | % | (0.1) | % | |||||||||||||||
| June 30, 2025 | 0.0 | 0.0 | (0.1) | (0.4) | % | ||||||||||||||||||
| September 30, 2024 | 1.6 | 1.2 | 0.7 | 0.5 | % | ||||||||||||||||||
| 101.INS | The XBRL Instance Document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document (1) | |||||||
| 101.SCH | XBRL Taxonomy Extension Schema Document | |||||||
| 101.CAL | XBRL Taxonomy Extension Calculation Linkbase Document | |||||||
| 101.LAB | XBRL Taxonomy Extension Label Linkbase Document | |||||||
| 101.PRE | XBRL Taxonomy Extension Presentation Linkbase Document | |||||||
| 101.DEF | XBRL Taxonomy Extension Definition Linkbase Document | |||||||
| 104 | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) | |||||||
WINTRUST FINANCIAL CORPORATION (Registrant) | ||||||||||||||
| Date: | November 6, 2025 | /s/ DAVID L. STOEHR | ||||||||||||
| David L. Stoehr | ||||||||||||||
| Executive Vice President and Chief Financial Officer (Principal Financial Officer and duly authorized officer) | ||||||||||||||
| Date: | November 6, 2025 | /s/ JEFFREY D. HAHNFELD | ||||||||||||
| Jeffrey D. Hahnfeld | ||||||||||||||
| Executive Vice President, Controller and Chief Accounting Officer (Principal Accounting Officer and duly authorized officer) | ||||||||||||||
| /s/ TIMOTHY S. CRANE | ||
| Name: Timothy S. Crane | ||
| Title: President and Chief Executive Officer | ||
| /s/ DAVID L. STOEHR | ||
| Name: David L. Stoehr | ||
| Title: Executive Vice President and Chief Financial Officer | ||
| /s/ TIMOTHY S. CRANE | ||
| Name: Timothy S. Crane | ||
| Title: President and Chief Executive Officer | ||
Date: November 6, 2025 | ||
| /s/ DAVID L. STOEHR | ||
| Name: David L. Stoehr | ||
| Title: Executive Vice President and Chief Financial Officer | ||
Date: November 6, 2025 | ||