Audit Information |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Audit Information [Abstract] | |
| Auditor Name | KPMG, LLP |
| Auditor Firm ID | 185 |
| Auditor Location | Kansas City, Missouri |
Consolidated Balance Sheets (Parenthetical) - USD ($) |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Mortgages Held-for-sale, Fair Value Disclosure | $ 4,028,000 | $ 2,981,000 |
| Debt Securities, Available-for-sale, Amortized Cost | 9,742,278,000 | 10,127,426,000 |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | $ 0 | $ 0 |
| Common stock, par value | $ 5 | $ 5 |
| Common stock, shares authorized | 190,000,000 | 190,000,000 |
| Common stock, shares issued | 138,588,701 | 135,210,812 |
| Treasury Stock, Common, Shares | 876,521 | 784,203 |
| Federal funds sold | $ 0 | $ 3,000,000 |
Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Statement of Comprehensive Income [Abstract] | |||
| Net income | $ 570,699 | $ 534,401 | $ 485,177 |
| Other comprehensive income (loss): | |||
| Net unrealized gains (losses) on other securities | 257,855 | 172,075 | 209,914 |
| Change in pension loss | 2,436 | 1,537 | 3,590 |
| Unrealized gains (losses) on cash flow hedge derivatives | (9,070) | (41,111) | (18,052) |
| Current period other comprehensive income (loss), net of tax | 251,221 | 132,501 | 195,452 |
| Comprehensive income (loss) | 821,920 | 666,902 | 680,629 |
| Non-controlling interest expense (income) | 4,448 | 8,070 | 8,117 |
| Comprehensive income (loss) attributable to Commerce Bancshares, Inc. | $ 817,472 | $ 658,832 | $ 672,512 |
Consolidated Statements Of Changes In Equity - USD ($) $ in Thousands |
Total |
Common Stock |
Capital Surplus |
Retained Earnings |
Treasury Stock, Common |
Accumulated Other Comprehensive Income (Loss) |
Non-Controlling Interest |
|---|---|---|---|---|---|---|---|
| Beginning Balance at Dec. 31, 2022 | $ 2,481,577 | $ 629,319 | $ 2,932,959 | $ 31,620 | $ (41,743) | $ (1,086,864) | $ 16,286 |
| Net income | 485,177 | 477,060 | 8,117 | ||||
| Other comprehensive income (loss) | 195,452 | 195,452 | |||||
| Distributions to non-controlling interest | (4,235) | (4,235) | |||||
| Purchase of treasury stock | (76,890) | (76,890) | |||||
| Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests | 54 | ||||||
| Sale of non-controlling interest in subsidiary | 0 | 54 | |||||
| Cash dividends paid on common stock | (134,734) | (134,734) | |||||
| Stock-based compensation | 17,052 | 17,052 | |||||
| Stock Issued During Period RSAs and SARs | 1,707 | (21,732) | 23,439 | ||||
| 5% stock dividend, net | (876) | 26,003 | 234,289 | (320,763) | 59,595 | ||
| Balance at Dec. 31, 2023 | 2,964,230 | 655,322 | 3,162,622 | 53,183 | (35,599) | (891,412) | 20,114 |
| Net income | 534,401 | 526,331 | 8,070 | ||||
| Other comprehensive income (loss) | 132,501 | 132,501 | |||||
| Distributions to non-controlling interest | (5,590) | (5,590) | |||||
| Purchase of treasury stock | (171,407) | (171,407) | |||||
| Cash dividends paid on common stock | (139,503) | (139,503) | |||||
| Stock-based compensation | 17,031 | 17,031 | |||||
| Stock Issued During Period RSAs and SARs | 1,698 | (23,816) | 25,514 | ||||
| 5% stock dividend, net | (886) | 20,732 | 239,808 | (394,517) | 133,091 | ||
| Balance at Dec. 31, 2024 | 3,332,475 | 676,054 | 3,395,645 | 45,494 | (48,401) | (758,911) | 22,594 |
| Net income | 570,699 | 566,251 | 4,448 | ||||
| Other comprehensive income (loss) | 251,221 | 251,221 | |||||
| Distributions to non-controlling interest | (3,641) | (3,641) | |||||
| Purchase of treasury stock | (207,967) | (207,967) | |||||
| Cash dividends paid on common stock | (146,596) | (146,596) | |||||
| Stock-based compensation | 17,272 | 17,272 | |||||
| Stock Issued During Period RSAs and SARs | 1,856 | (18,081) | 19,937 | ||||
| 5% stock dividend, net | (547) | 16,890 | 127,456 | (333,323) | 188,430 | ||
| Balance at Dec. 31, 2025 | $ 3,814,772 | $ 692,944 | $ 3,522,292 | $ 131,826 | $ (48,001) | $ (507,690) | $ 23,401 |
Consolidated Statements Of Changes In Equity (Parenthetical) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Statement of Stockholders' Equity [Abstract] | |||
| Common Stock, Dividends, Per Share, Cash Paid | $ 1.048 | $ 0.980 | $ 0.933 |
| Stock dividend rate (percent) | 5.00% | 5.00% | 5.00% |
Consolidated Statements Of Cash Flows - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|||
| OPERATING ACTIVITIES: | |||||
| Net income | $ 570,699 | $ 534,401 | $ 485,177 | ||
| Adjustments to reconcile net income to net cash provided by operating activities: | |||||
| Provision for loan losses | 56,138 | 32,903 | 35,451 | ||
| Provision for depreciation and amortization | 56,501 | 54,076 | 49,513 | ||
| Amortization of investment security premiums, net | (18,308) | (839) | 17,666 | ||
| Deferred income tax (benefit) expense | 11,555 | (591) | (7,399) | ||
| Investment securities (gains) losses, net | [1] | (3,660) | (7,823) | (14,985) | |
| Net gains on sales of loans held for sale | (2,929) | (2,326) | (1,026) | ||
| Proceeds from sales of loans held for sale | 129,670 | 107,456 | 58,946 | ||
| Origination Of Loans Held For Sale | (128,743) | (104,974) | (57,424) | ||
| Net (increase) decrease in trading securities | (15,321) | (18,466) | 28,478 | ||
| Purchase of interest rate floor | 0 | 0 | (54,449) | ||
| Stock-based compensation | 17,272 | 17,031 | 17,052 | ||
| (Increase) decrease in interest receivable | (11,025) | (5,362) | (5,986) | ||
| Increase (decrease) in interest payable | 8,681 | (23,856) | 46,650 | ||
| Increase (decrease) in income taxes payable | (22,625) | 12,215 | 4,586 | ||
| Other changes, net | (2,769) | (15,986) | (113,481) | ||
| Net cash provided by (used in) operating activities | 645,136 | 577,859 | 488,769 | ||
| INVESTING ACTIVITIES | |||||
| Payments to Acquire Businesses, Net of Cash Acquired | 0 | 0 | (6,365) | ||
| Proceeds from Equity Method Investment, Distribution, Return of Capital | 0 | 0 | 1,434 | ||
| Proceeds from sales of investment securities | [1] | 85,956 | 1,295,587 | 1,141,949 | |
| Proceeds from maturities/pay downs of investment securities | [1] | 1,774,612 | 2,133,113 | 1,935,552 | |
| Purchases of investment securities | [1] | (1,451,271) | (2,677,996) | (246,286) | |
| Net (increase) decrease in loans | (594,019) | (54,675) | (933,736) | ||
| Securities purchased under agreements to resell | (350,000) | (500,000) | 0 | ||
| Repayments of securities purchased under agreements to resell | 125,000 | 325,000 | 375,000 | ||
| Purchases of land, buildings and equipment | (52,748) | (46,133) | (88,074) | ||
| Sales of land, buildings and equipment | 100 | 8,891 | 4,358 | ||
| Net cash provided by (used in) investing activities | (462,370) | 483,787 | 2,183,832 | ||
| FINANCING ACTIVITIES | |||||
| Net increase (decrease) in non-interest bearing, savings, interest checking and money market deposits | 273,085 | 413,329 | (2,612,412) | ||
| Net increase (decrease) in time open and C.D.’s | (1,945) | (487,286) | 1,881,587 | ||
| Net increase (decrease) in short-term federal funds purchased and securities sold under agreements to repurchase | 62,883 | 17,943 | 67,081 | ||
| FHLB short-term borrowings | 0 | 0 | 2,250,000 | ||
| Repayments of FHLB borrowings | 0 | 0 | (2,250,000) | ||
| Net increase (decrease) in other borrowings | 12,742 | (1,348) | (8,268) | ||
| Purchases of treasury stock | (207,567) | (170,470) | (76,370) | ||
| Cash dividends paid on common stock and distributions to non-controlling interest | (150,237) | (145,093) | (134,734) | ||
| Other, net | (4) | (12) | (3) | ||
| Net cash provided by (used in) financing activities | (11,043) | (372,937) | (883,119) | ||
| Increase (decrease) in cash and cash equivalents | 171,723 | 688,709 | 1,789,482 | ||
| Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Beginning of Year | 3,375,992 | 2,687,283 | 897,801 | ||
| Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Year | 3,547,715 | 3,375,992 | 2,687,283 | ||
| Supplemental Cash Flow Information: | |||||
| Interest paid on deposits and borrowings | 363,184 | 453,167 | 336,512 | ||
| Loans transferred to foreclosed real estate | $ 2,172 | $ 1,184 | $ 322 | ||
| |||||
Summary of Significant Accounting Policies |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Accounting Policies [Abstract] | |
| Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Nature of Operations Commerce Bancshares, Inc. and its subsidiaries (the Company) conducts its principal activities from approximately 236 branch and ATM locations, primarily throughout Missouri, Kansas, Illinois, Oklahoma and Colorado. Principal activities include retail and commercial banking, investment management, securities brokerage, mortgage banking, trust, and private banking services. The Company also maintains offices in Dallas, Houston, Cincinnati, Nashville, Des Moines, Indianapolis, and Grand Rapids that support customers in its commercial and/or wealth segments and operates a commercial payments business with sales representatives covering the continental U.S. Basis of Presentation, Use of Estimates, and Subsequent Events The consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries. All material inter-company transactions have been eliminated through consolidation. Certain prior year amounts have been reclassified to conform to the current year presentation. Such reclassifications had no effect on net income or total assets. The Company follows accounting principles generally accepted in the United States of America (GAAP) and reporting practices applicable to the banking industry. The preparation of financial statements under GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and notes. These estimates are based on information available to management at the time the estimates are made. While the consolidated financial statements reflect management’s best estimates and judgments, actual results could differ from those estimates. Management has evaluated subsequent events for potential recognition or disclosure through the date these consolidated financial statements were issued. The Company, in the normal course of business, engages in a variety of activities that involve variable interest entities (VIEs). A VIE is a legal entity that lacks equity investors or whose equity investors do not have a controlling financial interest in the entity through their equity investments. However, an enterprise is deemed to have a controlling financial interest and is the primary beneficiary of a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. An enterprise that is the primary beneficiary must consolidate the VIE. The Company’s interests in VIEs are evaluated to determine if the Company is the primary beneficiary both at inception and when there is a change in circumstances that requires a reconsideration. The Company is considered to be the primary beneficiary in a rabbi trust related to a deferred compensation plan offered to certain employees. The assets and liabilities of this trust, which are included in the accompanying consolidated balance sheets, are not significant. The Company also has variable interests in certain entities in which it is not the primary beneficiary. These entities are not consolidated. These interests include certain investments in entities accounted for using the equity method of accounting, as well as affordable housing limited partnership interests, holdings in its investment portfolio of various asset and mortgage-backed bonds that are issued by securitization trusts, and managed discretionary trust assets that are not included in the accompanying consolidated balance sheets. Cash, Cash Equivalents and Restricted Cash In the accompanying consolidated statements of cash flows, cash and cash equivalents include “Cash and due from banks”, “Federal funds sold", "Securities purchased under agreements to resell”, and “Interest earning deposits with banks” as segregated in the accompanying consolidated balance sheets. Restricted cash is comprised of cash collateral on deposit with another financial institution to secure interest rate swap transactions. Restricted cash is included in other assets in the consolidated balance sheets and totaled $83 thousand and $82 thousand at December 31, 2025 and 2024, respectively. During 2020, the Federal Reserve System, which historically required the Bank to maintain cash balances at the Federal Reserve Bank, reduced the reserve requirement ratios to zero percent effective March 26, 2020. Other interest earning cash balances held at the Federal Reserve Bank totaled $2.7 billion at December 31, 2025. Loans and Related Earnings The Company's portfolio of held-for-investment loans includes a net investment in direct financing and sales type leases to commercial and industrial and tax-exempt entities, and collectively, the Company's portfolio of loans and leases is referred to as its "loan portfolio" or "loans". Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off are reported at amortized cost, excluding accrued interest receivable. Amortized cost is the outstanding principal balance, net of any deferred fees and costs on originated loans. Origination fee income received on loans and amounts representing the estimated direct costs of origination are deferred and amortized to interest income over the life of the loan using the interest method. Interest on loans is accrued based upon the principal amount outstanding. The Company has elected the practical expedient to exclude all accrued interest receivable from all required disclosures of amortized cost. Additionally, an election was made not to measure an allowance for credit losses for accrued interest receivables. The Company has also made the election that all interest accrued but ultimately not received is reversed against interest income. Loan and commitment fees, net of costs, are deferred and recognized in interest income over the term of the loan or commitment as an adjustment of yield. Annual fees charged on credit card loans are capitalized to principal and amortized over 12 months to loan fees and sales. Other credit card fees, such as cash advance fees and late payment fees, are recognized in income as an adjustment of yield when charged to the cardholder’s account. Past Due Loans Management reports loans as past due on the day following the contractual repayment date if payment was not received by end of the business day. Loans, or portions of loans, are charged off to the extent deemed uncollectible. Loan charge-offs reduce the allowance for credit losses on loans, and recoveries of loans previously charged off are added back to the allowance. Business, business real estate, construction and land real estate, and personal real estate loans are generally charged down to estimated collectible balances when they are placed on non-accrual status. Consumer loans and related accrued interest are normally charged down to the fair value of related collateral (or are charged off in full if not collateralized) once the loans are more than 120 to 180 days delinquent, depending on the type of loan. Revolving home equity loans are charged down to the fair value of the related collateral once the loans are more than 180 days past due. Credit card loans are charged off against the allowance for credit losses when the receivable is more than 180 days past due. Non-Accrual Loans Loans are placed on non-accrual status when management does not expect to collect payments consistent with acceptable and agreed upon terms of repayment. Business, construction real estate, business real estate, and individually significant personal real estate and consumer loans that are contractually 90 days past due as to principal and/or interest payments are generally placed on non-accrual status, unless they are both well-secured and in the process of collection. Personal real estate, consumer, revolving home equity and credit card loans are generally exempt under regulatory rules from being classified as non-accrual. When a loan is placed on non-accrual status, any interest previously accrued but not collected is reversed against current interest income, and the loan is charged off to the extent uncollectible. Principal and interest payments received on non-accrual loans are generally applied to principal. Interest is included in income only after all previous loan charge-offs have been recovered and is recorded only as received. The loan is returned to accrual status only when the borrower has brought all past due principal and interest payments current, and, in the opinion of management, the borrower has demonstrated the ability to make future payments of principal and interest as scheduled. A six month history of sustained payment performance is generally required before reinstatement of accrual status. Modifications for Borrowers Experiencing Financial Difficulty The Company may renegotiate the terms of existing loans for a variety of reasons. When refinancing or restructuring a loan, the Company evaluates whether the borrower is experiencing financial difficulty. In making this determination, the Company considers whether the borrower is currently in default on any of its debt. In addition, the Company evaluates whether it is probable that the borrower would be in payment default on any of its debt in the foreseeable future without the modification and if the borrower (without the current modification) could obtain equivalent financing from another creditor at a market rate for similar debt. Modifications of loans to borrowers in these situations may indicate that the borrower is facing financial difficulty. Loans Held For Sale Historically, loans held for sale included student loans and certain fixed rate residential mortgage loans. These loans are typically classified as held for sale upon origination based upon management's intent to sell the production of these loans. During 2024, the Company sold its remaining portfolio of student loans. When offered, the student loans were carried at the lower of aggregate cost or fair value, and their fair value was determined based on sale contract prices. The mortgage loans are carried at fair value under the elected fair value option. Their fair value is based on secondary market prices for loans with similar characteristics, including an adjustment for embedded servicing value. Changes in fair value and gains and losses on sales are included in loan fees and sales. Deferred fees and costs related to these loans are not amortized but are recognized as part of the cost basis of the loan at the time it is sold. Interest income related to loans held for sale is accrued based on the principal amount outstanding and the loan's contractual interest rate. Occasionally, other types of loans may be classified as held for sale in order to manage credit concentration. These loans are carried at the lower of cost or fair value with gains and losses on sales recognized in loan fees and sales. Allowance for Credit Losses on Loans The allowance for credit losses on loans is a valuation amount that is deducted from the amortized cost basis of loans not held at fair value to present the net amount expected to be collected over the contractual term of the loans. The allowance for credit losses on loans is measured using relevant information about past events, including historical credit loss experience on loans with similar risk characteristics, current conditions, and reasonable and supportable forecasts that affect the collectability of the remaining cash flows over the contractual term of the loans. An allowance will be created upon origination or acquisition of a loan and is updated at subsequent reporting dates. The methodology is applied consistently for each reporting period and reflects management’s current expectations of credit losses. Changes to the allowance for credit losses on loans resulting from periodic evaluations are recorded through increases or decreases to the credit loss expense for loans, which is recorded in provision for credit losses on the consolidated statements of income. Loans that are deemed to be uncollectible are charged off against the related allowance for credit losses on loans. The allowance for credit losses on loans is measured on a collective (pool) basis. Loans are aggregated into pools based on similar risk characteristics including borrower type, collateral type and expected credit loss patterns. Loans that do not share similar risk characteristics, primarily large loans on non-accrual status, are evaluated on an individual basis. The allowance related to these large non-accrual loans is generally measured using the fair value of the collateral (less selling cost, if applicable) as most of these loans are collateral dependent and the borrower is facing financial difficulty. As noted above, the allowance for credit losses on loans does not include an allowance for accrued interest. Liability for Unfunded Lending Commitments The Company’s unfunded lending commitments are primarily unfunded loan commitments and letters of credit. Expected credit losses for these unfunded lending commitments are calculated over the contractual period during which the Company is exposed to the credit risk. The methodology used to measure credit losses for unfunded lending commitments is the same as the methodology used for loans, however, the estimate of credit risk for unfunded lending commitments takes into consideration the likelihood that funding will occur. The liability for unfunded lending commitments excludes any exposures that are unconditionally cancellable by the Company. The loss estimate is recorded within other liabilities on the consolidated balance sheet. Changes to the liability for unfunded lending commitments are recorded through increases or decreases to the provision for credit losses on the consolidated statements of income. Direct Financing and Sales Type Leases The net investment in direct financing and sales type leases is included in loans on the Company’s consolidated balance sheets and consists of the present values of the sum of the future minimum lease payments and estimated residual value of the leased asset. Revenue consists of interest earned on the net investment and is recognized over the lease term as a constant percentage return thereon. Investments in Debt and Equity Securities The majority of the Company's investment portfolio is comprised of debt securities that are classified as available for sale. From time to time, the Company sells securities and utilizes the proceeds to reduce borrowings, fund loan growth, or modify its interest rate profile. Securities classified as available for sale are carried at fair value. Changes in fair value are reported in other comprehensive income (loss), a component of shareholders' equity. Securities are periodically evaluated for credit losses in accordance with the guidance provided in Accounting Standards Codification (ASC) 326. Further discussion of this evaluation is provided in "Allowance for Credit Losses on Available for Sale Debt Securities" below. Gains and losses realized upon sales of securities are calculated using the specific identification method and are included in investment securities gains (losses), net, in the consolidated statements of income. Purchase premiums and discounts are amortized to interest income using a level yield method over the estimated lives of the securities. For certain callable debt securities purchased at a premium, the amortization is recorded to the earliest call date. For mortgage and asset-backed securities, prepayment experience is evaluated quarterly to determine if a change in a bond's estimated remaining life is necessary. A corresponding adjustment is then made in the related amortization of premium or discount accretion. Accrued interest receivable on available for sale debt securities is reported in other assets on the consolidated balance sheet. The Company has elected the practical expedient to exclude the accrued interest from all required disclosures of amortized cost of debt securities. Additionally, an election was made not to measure an allowance for credit losses for accrued interest receivables. Interest accrued but not received is reversed against interest income. Equity securities include common and preferred stock and are carried at fair value. Certain equity securities do not have readily determinable fair values. The Company has elected to measure these equity securities without a readily determinable fair value at cost minus impairment, if any, plus or minus changes resulting from observable price changes for the identical or similar investment of the same issuer. The Company has not recorded any impairment or other adjustments to the carrying amount of these equity securities without readily determinable fair values. Other securities include the Company's investments in Federal Reserve Bank stock and Federal Home Loan Bank stock, equity method investments, and private equity investments. Federal Reserve Bank stock and Federal Home Loan Bank stock are held for debt and regulatory purposes, are carried at cost and are periodically evaluated for impairment. The Company's equity method investments are carried at cost, adjusted to reflect the Company's portion of income, loss, or dividends of the investee. The Company's private equity investments in portfolio concerns, consisting of both debt and equity instruments, are held by the Company’s private equity subsidiary, which is a small business investment company licensed by the Small Business Administration. The Company's private equity investments are carried at fair value in accordance with investment company accounting guidance (ASC 946-10-15), with changes in fair value reported in current income. In the absence of readily ascertainable market values, fair value is estimated using internally developed methods. Changes in fair value which are recognized in current income and gains and losses from sales are included in investment securities gains (losses), net, in the consolidated statements of income. Trading account securities, which are debt securities bought and held principally for the purpose of resale in the near term, are carried at fair value. Gains and losses, both realized and unrealized, are recorded in non-interest income. Purchases and sales of securities are recognized on a trade date basis. A receivable or payable is recognized for transaction pending settlements. Allowance for Credit Losses on Available for Sale Debt Securities For available for sale debt securities in an unrealized loss position, the entire loss in fair value is required to be recognized in current earnings if the Company intends to sell the securities or believes it more likely than not that it will be required to sell the security before the anticipated recovery. If neither condition is met, and the Company does not expect to recover the amortized cost basis, the Company determines whether the decline in fair value resulted from credit losses or other factors. If the assessment indicates that a credit loss exists, the present value of cash flows expected to be collected is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss has occurred, and an allowance for credit losses is recorded. The allowance for credit losses is limited by the amount that the fair value is less than the amortized cost basis. Any impairment not recorded through the provision for credit losses is recognized in other comprehensive income. Changes in the allowance for credit losses are recorded as a provision for (or reversal of) credit losses on the consolidated statements of income. Losses are charged against the allowance for credit losses on securities when management believes the uncollectibility of an available for sale security is confirmed or when either of the conditions regarding intent or requirement to sell is met. Accrued interest receivable on available for sale debt securities is excluded from the estimate of credit losses. Securities Purchased under Agreements to Resell and Securities Sold under Agreements to Repurchase Securities purchased under agreements to resell and securities sold under agreements to repurchase are treated as collateralized financing transactions, not as purchases and sales of the underlying securities. The agreements are recorded at the amount of cash advanced or received. The Company periodically enters into securities purchased under agreements to resell with large financial institutions. Securities pledged by the counterparties to secure these agreements are delivered to a third party custodian. Securities sold under agreements to repurchase are a source of funding to the Company and are offered to cash management customers as an automated, collateralized investment account. From time to time, securities sold may also be used by the Bank to obtain additional borrowed funds at favorable rates. These borrowings are secured by a portion of the Company's investment security portfolio and delivered either to the dealer custody account at the Federal Reserve Bank or to the applicable counterparty. The fair value of collateral either received from or provided to a counterparty is monitored daily, and additional collateral is obtained, returned, or provided by the Company in order to maintain full collateralization for these transactions. As permitted by current accounting guidance, the Company offsets certain securities purchased under agreements to resell against securities sold under agreements to repurchase in its balance sheet presentation. These agreements are further discussed in Note 20, Resale and Repurchase Agreements. Premises and Equipment Land is stated at cost, and buildings and equipment are stated at cost, including capitalized interest when appropriate, less accumulated depreciation. Depreciation is computed using a straight-line method, utilizing estimated useful lives; generally 30 to 40 years for buildings, 10 years for building improvements, and 3 to 10 years for equipment. Leasehold improvements are amortized over the shorter of 10 years or the remaining lease term. Maintenance and repairs are charged to non-interest expense as incurred. Also included in premises and equipment is construction in process, which represents facilities construction projects underway that have not yet been placed into service, as well as the Company's right-of-use leased assets, which are mainly comprised of operating leases for branches, office space, ATM locations, and certain equipment. Foreclosed Assets Foreclosed assets consist of property that has been repossessed and is comprised of commercial and residential real estate and other non-real estate property, including auto and recreational and marine vehicles. The assets are initially recorded at fair value less estimated selling costs, establishing a new cost basis. Initial valuation adjustments are charged to the allowance for credit losses. Fair values are estimated primarily based on appraisals, third-party price opinions, or internally developed pricing models. After initial recognition, fair value estimates are updated periodically. Declines in fair value below cost are recognized through valuation allowances which may be reversed when supported by future increases in fair value. These valuation adjustments, in addition to gains and losses realized on sales and net operating expenses, are recorded in other non-interest expense. Foreclosed assets are included in other assets on the consolidated balance sheets. Goodwill and Intangible Assets Goodwill and intangible assets that have indefinite useful lives, such as property easement intangible assets, are not amortized but are assessed for impairment on an annual basis or more frequently in certain circumstances. When testing for goodwill impairment, the Company may initially perform a qualitative assessment. Based on the results of this qualitative assessment, if the Company concludes it is more likely than not that a reporting unit's fair value is less than its carrying amount, a quantitative analysis is performed. Quantitative valuation methodologies include a combination of formulas using current market multiples, based on recent sales of financial institutions within the Company's geographic marketplace. If the fair value of a reporting unit is less than the carrying amount, an impairment has occurred and is measured as the amount by which the carrying amount exceeds the reporting unit's fair value. The Company has not recorded impairment resulting from goodwill impairment tests. However, adverse changes in the economic environment, operations of the reporting unit, or other factors could result in a decline in fair value. Intangible assets that have finite useful lives, such as core deposit intangibles and mortgage servicing rights, are amortized over their estimated useful lives. Mortgage servicing rights are amortized in proportion to and over the period of estimated net servicing income, considering appropriate prepayment assumptions. Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate their carrying amount may not be recoverable. Impairment is indicated if the sum of the undiscounted estimated future net cash flows is less than the carrying value of the intangible asset. Mortgage servicing rights, while initially recorded at fair value, are subsequently amortized and carried at the lower of the initial capitalized amount (net of accumulated amortization), or estimated fair value. The Company evaluates its mortgage servicing rights for impairment on a quarterly basis, using estimated prepayment speeds of the underlying mortgage loans serviced and stratification based on the risk characteristics of the underlying loans. A valuation allowance has been established, through a charge to earnings, to the extent the amortized cost exceeds the estimated fair value. However, the Company has not recorded other-than-temporary impairment losses on its intangible assets. Income Taxes Amounts provided for income tax expense are based on income reported for financial statement purposes and do not necessarily represent amounts currently payable under tax laws. Deferred income taxes are provided for temporary differences between the financial reporting bases and income tax bases of the Company’s assets and liabilities, net operating losses, and tax credit carryforwards. Deferred tax assets and liabilities are measured using the enacted tax rates that are expected to apply to taxable income when such assets and liabilities are anticipated to be settled or realized. The effect on deferred tax assets and liabilities of a change in tax rates is recognized as tax expense or benefit in the period that includes the enactment date of the change. In determining the amount of deferred tax assets to recognize in the financial statements, the Company evaluates the likelihood of realizing such benefits in future periods. A valuation allowance is established if it is more likely than not that all or some portion of the deferred tax asset will not be realized. The Company recognizes interest and penalties related to income taxes within income tax expense in the consolidated statements of income. The Company and its eligible subsidiaries file a consolidated federal income tax return. State and local income tax returns are filed on a combined, consolidated or separate return basis based upon each jurisdiction’s laws and regulations. The Company adopted ASU 2023-09 “Income Taxes (Topic 740) – Improvements to Income Tax Disclosures” for the year ended December 31, 2025. The amendments required additional disclosures regarding the rate reconciliation and income taxes paid and adoption did not have a material impact on the Company’s financial statements. The Company adopted this Update on a retrospective basis. Additional information about current and deferred income taxes is provided in Note 9, Income Taxes. Non-Interest Income Non-interest income is mainly comprised of revenue from contracts with customers. For that revenue (excluding certain revenue associated with financial instruments, derivative and hedging instruments, guarantees, lease contracts, transferring and servicing of financial assets, and other specific revenue transactions), the Company applies the following five-step approach when recognizing revenue: (i) identify the contract with the customer, (ii) identify the performance obligations, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations, and (v) recognize revenue when (or as) the performance obligation is satisfied. The Company’s contracts with customers are generally short term in nature, with a duration of one year or less, and most contracts are cancellable by either the Company or its customer without penalty. Performance obligations for customer contracts are generally satisfied at a single point in time, typically when the transaction is complete and the customer has received the goods or service, or over time. For performance obligations satisfied over time, the Company recognizes the value of the goods or services transferred to the customer when the performance obligations have been transferred and received by the customer. Payments for satisfied performance obligations are typically due when or as the goods or services are completed, or shortly thereafter, which usually occurs within a single financial reporting period. In situations where payment is made before the performance obligation is satisfied, the fees are deferred until the performance obligations pertaining to those goods or services are completed. In cases where payment has not been received despite satisfaction of its performance obligations, the Company accrues an estimate of the amount due in the period that the performance obligations have been satisfied. For contracts with variable components, the Company only recognizes revenue to the extent that it is probable that the cumulative amount recognized will not be subject to a significant reversal in future periods. Generally, the Company’s contracts do not include terms that require significant judgment to determine whether a variable component is included within the transaction price. The Company generally acts in a principal capacity, on its own behalf, in most of its contracts with customers. For these transactions, revenue and the related costs to provide the goods or services are presented on a gross basis in the financial statements. In some cases, the Company acts in an agent capacity, deriving revenue through assisting third parties in transactions with the Company’s customers. In such transactions, revenue and the related costs to provide services is presented on a net basis in the financial statements. These transactions primarily relate to fees earned from bank card and related network and rewards costs and beginning in August 2023, commissions on sales of consumer brokerage transactions and products. Derivatives The Company's derivative contracts are carried at fair value, and changes in fair value are recognized in current earnings. They include interest rate swaps and caps, which are offered to customers to assist in managing their risks of adverse changes in interest rates. Each contract between the Company and a customer is offset by a contract between the Company and an institutional counterparty, thus minimizing the Company's exposure to rate changes. The Company also enters into certain contracts, known as credit risk participation agreements, to buy or sell credit protection on specific interest rate swaps. It also purchases and sells forward foreign exchange contracts, either in connection with customer transactions, or for its own trading purposes. Additionally, the Company originates and sells certain personal real estate mortgages. Derivative instruments under this program include mortgage loan commitments, forward loan sale contracts, and forward contracts to sell certain to-be-announced (TBA) securities. The Company's interest rate risk management policy permits the use of hedge accounting for derivatives, and the Company has entered into interest rate floor contracts as protection from the potential for declining interest rates in the commercial loan portfolio. These floors were designated and qualified as cash flow hedges. In a cash flow hedge, the changes in fair value are recorded in accumulated other comprehensive income and recognized in the income statement when the hedged cash flows affect earnings. Both at hedge inception and on an ongoing basis, the Company assesses whether the interest rate floors used in the hedging relationships are highly effective in offsetting changes in the cash flows of the hedged items. From time to time, the Company has monetized its interest rate floors that had previously been designated and qualified as cash flow hedges. In such case, the monetized cash flow hedge is derecognized and the amounts recorded in accumulated other comprehensive income (AOCI) remain in AOCI until the underlying forecasted transaction impacts earnings, unless the forecasted transaction becomes probable of not occurring. The Company has master netting arrangements with various counterparties but does not offset derivative assets and liabilities under these arrangements in its consolidated balance sheets. However, interest rate swaps that are executed under central clearing requirements are presented net of variation margin as mandated by the statutory terms of the Company's contract with its clearing counterparty. Additional information about derivatives held by the Company and valuation methods employed is provided in Note 17, Fair Value Measurements and Note 19, Derivative Instruments. Cash flows associated with derivative instruments and their related gains and losses are presented in the consolidated statement of cash flows as operating activities. Pension Plan The Company’s pension plan is described in Note 10, Employee Benefit Plans. In accordance with ASU 2017-07, the Company has reported the service cost component of net periodic pension cost in salaries and employee benefits in the accompanying consolidated statements of income, while the other components are reported in other non-interest expense. The funded status of the plan is recognized as an other asset or other liability in the consolidated balance sheets, and changes in that funded status are recognized in the year in which the changes occur through other comprehensive income. Plan assets and benefit obligations are measured as of the fiscal year end of the plan. The measurement of the projected benefit obligation and pension expense involve actuarial valuation methods and the use of various actuarial and economic assumptions. The Company monitors the assumptions and updates them periodically. Due to the long-term nature of the pension plan obligation, actual results may differ significantly from estimations. Such differences are adjusted over time as the assumptions are replaced by facts and values are recalculated. Stock-Based Compensation The Company’s stock-based compensation plan is described in Note 11, Stock-Based Compensation and Directors Stock Purchase Plan. In accordance with the requirements of ASC 718-10-30-3 and 35-2, the Company measures the cost of stock-based compensation based on the grant-date fair value of the award, recognizing the cost over the requisite service period, which is generally the vesting period. The fair value of stock appreciation rights is estimated using the Black-Scholes option-pricing model while the fair value of a nonvested stock award is the common stock (CBSH) market price. The expense recognized for stock-based compensation is included in salaries and benefits in the accompanying consolidated statements of income. The Company recognizes forfeitures as a reduction to expense only when they have occurred. Treasury Stock Purchases of the Company’s common stock are recorded at cost. Upon re-issuance for acquisitions, exercises of stock-based awards or other corporate purposes, treasury stock is reduced based upon the average cost basis of shares held. Income per Share Basic income per share is computed using the weighted average number of common shares outstanding during each year. Diluted income per share includes the effect of all dilutive potential common shares (primarily stock appreciation rights) outstanding during each year. The Company applies the two-class method of computing income per share. The two-class method is an earnings allocation formula that determines income per share for common stock and for participating securities, according to dividends declared and participation rights in undistributed earnings. The Company’s nonvested stock awards are considered to be a class of participating security. All per share data has been restated to reflect the 5% stock dividend distributed in December 2025.
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Loans And Allowance For Credit Losses |
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| Loans And Allowance For Credit Losses [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Loans And Allowance For Credit Losses | Loans and Allowance for Credit Losses Major classifications within the Company’s held for investment loan portfolio at December 31, 2025 and 2024 are as follows:
(1) Accrued interest receivable totaled $74.4 million and $70.6 million at December 31, 2025 and 2024, respectively, and was included within other assets on the consolidated balance sheets. For the year ended December 31, 2025, the Company wrote-off accrued interest by reversing interest income of $315 thousand and $6.3 million in the Commercial and Personal Banking portfolios, respectively. For the year ended December 31, 2024, the Company wrote-off accrued interest by reversing interest income of $548 thousand and $6.1 million in the Commercial and Personal Banking portfolios, respectively. Loans to directors and executive officers of the Parent and the Bank, and to their affiliates, are summarized as follows:
Management believes all loans to directors and executive officers have been made in the ordinary course of business with normal credit terms, including interest rate and collateral considerations, and do not represent more than a normal risk of collection. The activity in the table above includes draws and repayments on several lines of credit with business entities. There were no outstanding loans at December 31, 2025 to principal holders (over 10% ownership) of the Company’s common stock. The Company’s lending activity is generally centered in Missouri, Kansas, Illinois and other nearby states including Oklahoma, Colorado, Iowa, Ohio, and Texas. The Company maintains a diversified portfolio with limited industry concentrations of credit risk. Loans and loan commitments are extended under the Company’s normal credit standards, controls, and monitoring procedures. Most loan commitments are short or intermediate term in nature. Commercial loan maturities generally range from one to seven years. Collateral is commonly required and would include such assets as marketable securities, cash equivalent assets, accounts receivable, inventory, equipment, other forms of personal property, and real estate. At December 31, 2025, unfunded loan commitments totaled $15.8 billion (which included $6.1 billion in unused approved lines of credit related to credit card loan agreements) which could be drawn by customers subject to certain review and terms of agreement. At December 31, 2025, loans totaling $2.6 billion were pledged at the FHLB as collateral for borrowings and letters of credit obtained to secure public deposits. Additional loans of $2.8 billion were pledged at the Federal Reserve Bank as collateral for discount window borrowings. The Company has a net investment in direct financing and sales type leases to commercial and industrial and tax-exempt entities of $864.9 million and $879.6 million at December 31, 2025 and 2024, respectively, which is included in business loans on the Company’s consolidated balance sheets. This investment includes deferred income of $97.1 million and $102.5 million at December 31, 2025 and 2024, respectively. Allowance for credit losses The allowance for credit losses is measured using an average historical loss model which incorporates relevant information about past events (including historical credit loss experience on loans with similar risk characteristics), current conditions, and reasonable and supportable forecasts that affect the collectability of the remaining cash flows over the contractual term of the loans. The allowance for credit losses is measured on a collective (pool) basis. Loans are aggregated into pools based on similar risk characteristics including borrower type, collateral type and expected credit loss patterns. Loans that do not share similar risk characteristics, primarily large loans on non-accrual status, are evaluated on an individual basis. For loans evaluated for credit losses on a collective basis, average historical loss rates are calculated for each pool using the Company’s historical net charge-offs (combined charge-offs and recoveries by observable historical reporting period) and outstanding loan balances during a lookback period. Lookback periods can be different based on the individual pool and represent management’s credit expectations for the pool of loans over the remaining contractual life. In certain loan pools, if the Company’s own historical loss rate is not reflective of the loss expectations, the historical loss rate is augmented by industry and peer data. The calculated average net charge-off rate is then adjusted for current conditions and reasonable and supportable forecasts. These adjustments increase or decrease the average historical loss rate to reflect expectations of future losses given a single path economic forecast of key macroeconomic variables including GDP, disposable income, unemployment rate, various interest rates, consumer price index (CPI) inflation rate, housing price index (HPI), commercial real estate price index (CREPI) and market volatility. The adjustments are based on results from various regression models projecting the impact of the macroeconomic variables to loss rates. The forecast is used for a reasonable and supportable period before reverting back to historical averages using a straight-line method. The forecast-adjusted loss rate is applied to the amortized cost of loans over the remaining contractual lives, adjusted for expected prepayments. The contractual term excludes expected extensions (except for contractual extensions at the option of the customer), renewals and modifications. Credit cards and certain similar consumer lines of credit do not have stated maturities and therefore, for these loan classes, remaining contractual lives are determined by estimating future cash flows expected to be received from customers until payments have been fully allocated to outstanding balances. Additionally, the allowance for credit losses considers other qualitative factors not included in historical loss rates or macroeconomic forecast such as changes in portfolio composition, underwriting practices, or significant unique events or conditions. Key assumptions in the Company’s allowance for credit loss model include the economic forecast, the reasonable and supportable period, forecasted macro-economic variables, prepayment assumptions and qualitative factors applied for portfolio composition changes, underwriting practices, or significant unique events or conditions. The assumptions utilized in estimating the Company’s allowance for credit losses at December 31, 2025 and 2024 are discussed below.
The liability for unfunded lending commitments utilizes the same model as the allowance for credit losses on loans, however, the liability for unfunded lending commitments incorporates an assumption for the portion of unfunded commitments that are expected to be funded. Sensitivity in the Allowance for Credit Loss model The allowance for credit losses is an estimate that requires significant judgment including projections of the macro-economic environment. The forecasted macro-economic environment continuously changes which can cause fluctuations in estimated expected credit losses. The current forecast includes projections on inflation, labor market trends, Federal Reserve monetary policy, business growth and consumer spending. Economic, political, and social developments regionally, nationally, and even globally could significantly modify economic projections used in the estimation of the allowance for credit losses. Uncertainty around increased unemployment and other negative economic trends is heightened. Potential changes in any one economic variable may or may not affect the overall allowance because a variety of economic variables and inputs are considered in estimating allowance, and changes in those variables and inputs may not occur at the same rate, may not be consistent across product types and may have offsetting impacts to other changing variables and inputs. A summary of the activity in the allowance for credit losses on loans and the liability for unfunded lending commitments during the years ended December 31, 2025 and 2024 follows:
Delinquent and non-accrual loans The Company considers loans past due on the day following the contractual repayment date, if the contractual repayment was not received by the Company as of the end of the business day. The following table provides aging information on the Company’s past due and accruing loans, in addition to the balances of loans on non-accrual status, at December 31, 2025 and 2024.
At December 31, 2025 the Company had no non-accrual loans that had allowance for credit loss, compared to $2.0 million at December 31, 2024. The Company did not record any interest income on non-accrual loans during the years ended December 31, 2025 and 2024. Credit quality indicators The following table provides information about the credit quality of the Commercial loan portfolio. The Company utilizes an internal risk rating system comprised of a series of grades to categorize loans according to perceived risk associated with the expectation of debt repayment based on borrower specific information, including but not limited to, current financial information, historical payment experience, industry information, collateral levels and collateral types. The “pass” category consists of a range of loan grades that reflect increasing, though still acceptable, risk. A loan is assigned the risk rating at origination and then monitored throughout the contractual term for possible risk rating changes. Movement of risk through the various grade levels in the “pass” category is monitored for early identification of credit deterioration. The “special mention” rating is applied to loans where the borrower exhibits negative financial trends due to borrower specific or systemic conditions that, if left uncorrected, threaten its capacity to meet its debt obligations. The borrower is believed to have sufficient financial flexibility to react to and resolve its negative financial situation. It is a transitional grade that is closely monitored for improvement or deterioration. The “substandard” rating is applied to loans where the borrower exhibits well-defined weaknesses that jeopardize its continued performance and are of a severity that the distinct possibility of default exists. Loans are placed on “non-accrual” when management does not expect to collect payments consistent with acceptable and agreed upon terms of repayment. All loans are analyzed for risk rating updates annually. For larger loans, rating assessments may be more frequent if relevant information is obtained earlier through debt covenant monitoring or overall relationship management. Smaller loans are monitored as identified by the loan officer based on the risk profile of the individual borrower or if the loan becomes past due related to credit issues. Loans rated Special Mention, Substandard or Non-accrual are subject to quarterly review and monitoring processes. In addition to the regular monitoring performed by the lending personnel and credit committees, loans are subject to review by a credit review department which verifies the appropriateness of the risk ratings for the loans chosen as part of its risk-based review plan. The risk category of loans in the Commercial portfolio as of December 31, 2025 and 2024 are as follows:
The credit quality of Personal Banking loans is monitored primarily on the basis of aging/delinquency, and this information is provided as of December 31, 2025 and 2024 below:
Collateral-dependent loans The Company's collateral-dependent loans are comprised of large loans on non-accrual status. The Company requires that collateral-dependent loans are either over-collateralized or carry collateral equal to the amortized cost of the loan. The following table presents the amortized cost basis of collateral-dependent loans as of December 31, 2025 and 2024.
Modifications for borrowers experiencing financial difficulty When borrowers are experiencing financial difficulty, the Company may agree to modify the contractual terms of a loan to a borrower in order to assist the borrower in repaying principal and interest owed to the Company. The Company's modifications of loans to borrowers experiencing financial difficulty are generally in the form of term extensions, repayment plans, payment deferrals, forbearance agreements, interest rate reductions, forgiveness of interest and/or fees, or any combination thereof. Commercial loans modified to borrowers experiencing financial difficulty are primarily loans that are substandard or non-accrual, where the maturity date was extended. Modifications on personal real estate loans are primarily those placed on forbearance plans, repayment plans, or deferral plans where monthly payments are suspended for a period of time or past due amounts are paid off over a certain period of time in the future or set up as a balloon payment at maturity. Modifications to certain credit card and other small consumer loans are often modified under debt counseling programs that can reduce the contractual rate or, in certain instances, forgive certain fees and interest charges. Other consumer loans modified to borrowers experiencing financial difficulty consist of various other workout arrangements with consumer customers. The following tables present the amortized cost at December 31, 2025 of loans that were modified during the year ended December 31, 2025 and the amortized cost at December 31, 2024 of loans that were modified during the year ended December 31, 2024.
The estimate of lifetime expected losses utilized in the allowance for credit losses model is developed using average historical experience on loans with similar risk characteristics, which includes losses from modifications of loans to borrowers experiencing financial difficulty. As a result, a change to the allowance for credit losses is generally not recorded upon modification. For modifications to loans made to borrowers experiencing financial difficulty that are placed on non-accrual status, the Company determines the allowance for credit losses on an individual evaluation, using the same process that it utilizes for other loans on non-accrual status. Modifications made to commercial loans which are not on non-accrual status for borrowers experiencing financial difficulty are collectively evaluated based on internal risk rating, loan type, delinquency, historical experience, and current economic factors. Modifications made to borrowers experiencing financial difficulty for personal banking loans which are not on non-accrual status are collectively evaluated based on loan type, delinquency, historical experience, and current economic factors. If a loan to a borrower experiencing financial difficulty is modified and subsequently deemed uncollectible, the allowance for credit losses continues to be based on individual evaluation, if that loan is already on non-accrual status. For those loans, the allowance for credit losses is estimated using discounted expected cash flows or the fair value of collateral. If an accruing loan made to a borrower experiencing financial difficulty is modified and subsequently deemed uncollectible, the loan's risk rating is downgraded to non-accrual status and the loan's related allowance for credit losses is determined based on individual evaluation, or if necessary, the loan is charged off and collection efforts begin. The following tables summarize the financial impact of loan modifications and payment deferrals during the years ended December 31, 2025 and December 31, 2024.
The Company had commitments of $11.4 million and $14.9 million at December 31, 2025 and December 31, 2024, respectively, to lend additional funds to borrowers experiencing financial difficulty and for whom the Company has modified the terms of loans in the form of an interest rate reduction; an other-than-insignificant payment delay; forgiveness of principal, interest, or fees; or a term extension during the current reporting period. The following tables provide the amortized cost basis at December 31, 2025 of loans to borrowers experiencing financial difficulty that had a payment default during the year ended December 31, 2025 and were modified within the 12 months preceding the payment default, as well as the amortized cost basis at December 31, 2024 of loans to borrowers experiencing financial difficulty that had a payment default during the year ended December 31, 2024 and had been modified within the 12 months preceding the payment default. For purposes of this disclosure, the Company considers "default" to mean 90 days or more past due as to interest or principal.
The following tables present the amortized cost basis at December 31, 2025 of loans to borrowers experiencing financial difficulty that had been modified within the previous 12 months, as well as the amortized cost basis at December 31, 2024 of loans to borrowers experiencing financial difficulty that had been modified within the previous 12 months.
Loans held for sale The Company designates certain long-term fixed rate personal real estate loans as held for sale, and the Company has elected the fair value option for these loans. The election of the fair value option aligns the accounting for these loans with the related economic hedges discussed in Note 19. The loans are primarily sold to FNMA and FHLMC. At December 31, 2025, the fair value of these loans was $4.0 million, and the unpaid principal balance was $4.0 million. At December 31, 2025, none of the loans held for sale were on non-accrual status or 90 days past due and still accruing. Foreclosed real estate/repossessed assets The Company’s holdings of foreclosed real estate totaled $1.2 million and $343 thousand at December 31, 2025 and 2024, respectively, and included in those amounts were $1.0 million and $343 thousand of foreclosed residential real estate properties held as a result of obtaining physical possession at December 31, 2025 and December 31, 2024, respectively. Personal property acquired in repossession, generally autos, marine and recreational vehicles (RV), totaled $2.3 million and $2.2 million at December 31, 2025 and 2024, respectively. Upon acquisition, these assets are recorded at fair value less estimated selling costs at the date of foreclosure, establishing a new cost basis. They are subsequently carried at the lower of this cost basis or fair value less estimated selling costs.
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Investment Securities |
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| Investments, Debt and Equity Securities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Holdings | Investment Securities Investment securities consisted of the following at December 31, 2025 and 2024:
(1) Accrued interest receivable totaled $42.0 million and $35.0 million at December 31, 2025 and December 31, 2024, respectively, and was included within other assets on the consolidated balance sheet. Most of the Company’s investment securities are classified as available for sale debt securities, and this portfolio is discussed in more detail below. The Company’s equity securities are also discussed below. Other investment securities include Federal Reserve Bank (FRB) stock, Federal Home Loan Bank (FHLB) stock, and investments in portfolio concerns held by the Company’s private equity subsidiary. FRB stock and FHLB stock are held for liquidity management and regulatory purposes. Investment in FRB stock is based on the capital structure of the investing bank, and investment in FHLB stock is tied to the asset size of the borrowing bank and the level of borrowings from the FHLB. These holdings are carried at cost. The Company’s private equity investments are carried at estimated fair value. Equity Securities The Company’s equity securities portfolio includes mutual funds, common stock, and preferred stock with readily determinable fair values as well as equity securities with no readily determinable fair value. The Company has elected to measure equity securities with no readily determinable fair value at cost minus impairment, if any, plus or minus changes resulting from observable price changes for the identical or similar investment of the same issuer. At March 31, 2024, this portfolio included the Company’s 823,447 shares of Visa Inc. (“Visa”) Class B-1 common stock (formerly Class B common stock), which were held by Commerce Bancshares, Inc. The Company’s Visa Class B-1 shares had a carrying value of zero at March 31, 2024, as there had not been observable price changes in orderly transactions for identical or similar investments of the same issuer. On April 8, 2024, Visa announced the commencement of a public offering to permit the exchange of its Class B-1 common stock for a combination of shares of its Class B-2 common stock and its Class C common stock (“Exchange Offer”). The Company tendered all of its Visa Class B-1 shares pursuant to the Exchange Offer. On May 3, 2024, the Exchange Offer closed, and in exchange for its 823,447 shares of Visa Class B-1 common stock, the Company received 411,723 shares of Visa Class B-2 common stock (which will be convertible under certain circumstances, as further described below, into Visa’s publicly traded Class A common stock at an initial rate of 1.5875 shares of Class A common for each share of Class B-2 common stock, subject to adjustment) and 163,404 shares of Visa Class C common stock which automatically convert into four shares of Visa's Class A common stock (subject to future adjustments for any stock splits, recapitalizations or similar transactions) upon any transfer to a person other than a Visa member or an affiliate of a Visa member. As a condition of participating in the exchange, the Company entered into a Makewhole Agreement with Visa that provides for cash payments to Visa to the extent (if any) that future adjustments to the conversion ratio for the Visa Class B-2 common stock to Class A common stock cause such ratio to fall below zero. Changes to the conversion ratio occur when Visa deposits funds to a litigation escrow established by Visa to pay settlements for certain covered litigation that pre-dated Visa’s initial public offering, for which Visa has been effectively indemnified by Visa USA members through reductions to the conversion ratio for its Class B-1 common stock. The purpose of the Makewhole Agreement is to preserve the economic benefit of these adjustments to the Class B-1 conversion ratio for the benefit of Visa’s Class A and Class C common stockholders following the exchange. As further described in Visa’s related Issuer Tender Offer Statement on Schedule TO and Prospectus, each dated April 8, 2024, publicly filed with the U. S. Securities and Exchange Commission, both the Makewhole Agreement and the related escrow fund and transfer restrictions on Visa’s Class B-1 common stock and the new Class B-2 common stock will terminate whenever the covered litigation is ultimately resolved, at which future date outstanding shares of Visa Class B-2 common stock will be convertible into shares of its Class A common stock at the then-applicable conversion ratio. As a result of the exchange, the Company elected the measurement alternative approach for its Visa Class C common stock and marked the stock to fair value, recording a gain based on the conversion privilege of the Visa Class C common stock and the closing price of Visa Class A common stock. During the second quarter of 2024, the Company sold 436 thousand shares of Visa Class A common stock at an average price of $274.91, resulting in proceeds of $119.8 million. During the third quarter of 2024, the Company sold 218 thousand Visa Class A shares at an average price of $260.56, resulting in proceeds of $56.8 million. During the second and third quarters of 2024, the Company sold all of the Visa Class C shares it received from the Visa Exchange Offer. The Company’s Visa Class B-2 common stock will continue to be carried at cost of $0 as the Company elected the measurement alternative approach for these shares as well, and there are not observable price changes in orderly transactions for identical or similar investments of the same issuer for the Visa Class B-2 shares held by the Company. Changes in equity investments with no readily determinable fair value for the year ended December 31, 2024 were as follows:
Net gains and losses for the Company's equity securities portfolio during the year ended December 31, 2024 were as follows:
Available for sale debt securities portfolio The majority of the Company’s investment portfolio is comprised of available for sale debt securities, which are carried at fair value with changes in fair value reported in accumulated other comprehensive income (AOCI). The investment portfolio includes agency mortgage-backed securities, which are guaranteed by agencies such as FHLMC, FNMA, and Government National Mortgage Association (GNMA), in addition to non-agency mortgage-backed securities, which have no guarantee but are collateralized by commercial and residential mortgages. Also included are certain other asset-backed securities, which are primarily collateralized by credit cards, automobiles, student loans, and commercial loans. These securities differ from traditional debt securities primarily in that they may have uncertain maturity dates and are priced based on estimated prepayment rates on the underlying collateral. A summary of the available for sale debt securities by maturity groupings as of December 31, 2025 is shown below. In the table below, the weighted average yield for the year ended December 31, 2025 is calculated based on amortized cost and has not been tax equated.
* Rate does not reflect inflation adjustment on inflation-protected securities Investments in U.S. government and federal agency obligations include U.S. Treasury inflation-protected securities, which totaled $419.4 million, at fair value, at December 31, 2025. Interest paid on these securities increases with inflation and decreases with deflation, as measured by the non-seasonally adjusted Consumer Price Index (CPI-U). At maturity, the principal paid is the greater of an inflation-adjusted principal or the original principal. Allowance for credit losses on available for sale debt securities Securities for which fair value is less than amortized cost are reviewed for impairment. Special emphasis is placed on securities whose credit rating has fallen below Baa3 (Moody's) or BBB- (Standard & Poor's), whose fair values have fallen more than 20% below purchase price, or those which have been identified based on management’s judgment. These securities are placed on a watch list and cash flow analyses are prepared on an individual security basis. Certain securities are analyzed using a projected cash flow model, discounted to present value, and compared to the current amortized cost bases of the securities. The model uses input factors such as cash flow projections, contractual payments required, expected delinquency rates, credit support from other tranches, prepayment speeds, collateral loss severity rates (including loan to values), and various other information related to the underlying collateral. Securities not analyzed using the cash flow model are analyzed by reviewing credit ratings, credit support agreements, and industry knowledge to project future cash flows and any possible credit impairment. At December 31, 2025, the fair value of securities on this watch list was $896.7 million compared to $1.6 billion at December 31, 2024. Almost all of the securities included on the Company's watch list were experiencing unrealized loss positions due to the significant increase in interest rates and were analyzed outside of the cash flow model. At December 31, 2025, the securities on the Company's watch list that were not deemed to be solely related to increasing interest rates were securities backed by government-guaranteed student loans and are expected to perform as contractually required. As of December 31, 2025, the Company did not identify any securities for which a credit loss exists, and for the years ended December 31, 2025 and 2024, the Company did not recognize a credit loss expense on any available for sale debt securities. The table below summarizes debt securities available for sale in an unrealized loss position, aggregated by length of loss period, for which an allowance for credit losses has not been recorded at December 31, 2025 and 2024. Unrealized losses on these available for sale securities have not been recognized into income because after review, the securities were deemed not to be impaired. The unrealized losses on these securities are primarily attributable to changes in interest rates and current market conditions. At December 31, 2025, the Company does not intend to sell the securities, nor is it anticipated that it would be required to sell any of these securities at a loss.
The entire available for sale debt securities portfolio included $5.9 billion of securities that were in a loss position at December 31, 2025, compared to $8.1 billion at December 31, 2024. The total amount of unrealized loss on these securities was $692.1 million at December 31, 2025, a decrease of $302.4 million compared to the unrealized loss at December 31, 2024. Securities with significant unrealized losses are discussed in the "Allowance for credit losses on available for sale debt securities" section above. For debt securities classified as available for sale, the following table shows the amortized cost, fair value, and allowance for credit losses of securities available for sale at December 31, 2025 and 2024 and the corresponding amounts of gross unrealized gains and losses (pre-tax) in AOCI, by security type.
The following table presents proceeds from sales of securities and the components of investment securities gains and losses which have been recognized in earnings.
During 2024, the Company executed a plan to reposition a portion of its available for sale debt securities portfolio through the sale of securities with an amortized cost of $1.2 billion. The securities that the Company sold had a yield of approximately 2.1%, which resulted in a loss of $179.1 million, and the Company reinvested $928.8 million of the proceeds into U.S. Treasury securities yielding approximately 4.6%. Pledged securities At December 31, 2025, securities totaling $7.3 billion in fair value were pledged to secure public fund deposits, securities sold under agreements to repurchase, trust funds, and borrowings at the FRB and FHLB, compared to $6.9 billion at December 31, 2024. At December 31, 2025, the Company had no securities pledged under agreements pursuant to which the collateral may be sold or re-pledged by the secured parties. Except for obligations of various government-sponsored enterprises such as FNMA, FHLB and FHLMC, no investment in a single issuer exceeds 10% of shareholders' equity.
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| Property, Plant and Equipment [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Premises and Equipment | Premises and Equipment Premises and equipment consist of the following at December 31, 2025 and 2024:
Depreciation expense of $42.1 million in 2025, $40.0 million in 2024, and $36.1 million in 2023, was included in occupancy expense and equipment expense in the consolidated statements of income. Repairs and maintenance expense of $18.9 million, $18.3 million, and $18.5 million for 2025, 2024 and 2023, respectively, was included in occupancy expense and equipment expense. There was no interest expense capitalized on construction projects in 2025. Interest expense capitalized on construction projects totaled $2 thousand and $903 thousand in 2024 and 2023, respectively. The decrease in 2024 was primarily driven by the completion of a large office building construction project in March 2023. Right of use leased assets are comprised mainly of operating leases for branches, office space, ATM locations, and certain equipment, as described in Note 6.
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| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill And Other Intangible Assets | Goodwill and Other Intangible Assets The following table presents information about the Company's intangible assets which have estimable useful lives.
The carrying amount of goodwill and its allocation among segments at December 31, 2025 and 2024 is shown in the table below. As a result of ongoing assessments, no impairment of goodwill was recorded in 2025, 2024 or 2023. Further, the annual assessment of qualitative factors on January 1, 2026 revealed no likelihood of impairment as of that date.
In addition to its intangible assets with estimable useful lives included in the table above, the Company also has a $3.6 million intangible asset for an easement in connection with a commercial office complex in Clayton, Missouri. The easement, which grants the Company access to all portions of the parking facility and terrace garden, is perpetual and will be assessed for impairment at least annually, or whenever events or circumstances indicate an impairment may have occurred. No impairment was identified at December 31, 2025. Changes in the net carrying amount of goodwill and other net intangible assets for the years ended December 31, 2025 and 2024 are shown in the following table.
Mortgage servicing rights (MSRs) are initially recorded at fair value and subsequently amortized over the period of estimated servicing income. They are periodically reviewed for impairment at a tranche level, and if impairment is indicated, recorded at fair value. Temporary impairment, including impairment recovery, is effected through a change in a valuation allowance. During 2025, no impairment or impairment recovery was recognized. The fair value of the MSRs is based on the present value of expected future cash flows, as further discussed in Note 17 on Fair Value Measurements. Aggregate amortization expense on intangible assets for the years ended December 31, 2025, 2024 and 2023 was $1.3 million, $1.3 million and $1.4 million, respectively. The following table shows the estimated future amortization expense based on existing asset balances and the interest rate environment as of December 31, 2025. The Company’s actual amortization expense in any given period may be different from the estimated amounts depending upon the acquisition of intangible assets, changes in mortgage interest rates, prepayment rates and other market conditions.
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Leases |
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| Leases [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leases | Leases The Company's leasing activities include leasing certain real estate and equipment, providing lease financing to commercial customers, and leasing office space to third parties. The Company uses the FHLB fixed-advance rate at lease commencement or at any subsequent remeasurement event date based on the remaining lease term to calculate the liability for each lease. Lessee The Company's operating leases are primarily for branches, office space, ATM locations, and certain equipment. As of December 31, 2025, the right-of-use asset for , and reported within other liabilities, recognized on the Company's consolidated balance sheets totaled $30.6 million and $31.5 million, respectively, compared to right-of-use assets of $30.7 million and lease liability of $31.2 million at December 31, 2024. Total lease cost for the year ended December 31, 2025 was $8.6 million, compared to $8.5 million for the year ended December 31, 2024. For leases with a term of 12 months or less, an election was made not to recognize lease assets and lease liabilities for all asset classes, and to recognize lease expense for these leases on a straight-line basis over the lease term. The Company's leases have remaining terms of 2 months to 26 years, most of which contain renewal options. However, the renewal options are generally not included in the leased asset or liability because the option exercises are uncertain. The maturities of operating leases at December 31, 2025 are included in the table below.
(1) Excludes $2.8 million of legally binding minimum lease payments for operating leases signed but not yet commenced. The following table presents the average lease term and discount rate of operating leases.
Supplemental cash flow information related to operating leases is included in the table below.
Lessor The Company has net investments in direct financing and sales-type leases to commercial, industrial, and tax-exempt entities. These leases are included within business loans on the Company's consolidated balance sheets. The Company primarily leases various types of equipment, trucks and trailers, and office furniture and fixtures. Lease agreements may include options for the lessee to renew or purchase the leased equipment at the end of the lease term. The Company has elected to adopt the lease component expedient in which the lease and nonlease components are combined into the total lease receivable. The Company also leases office space to third parties, and these leases are classified as operating leases. The leases may include options to renew or to expand the leased space, and currently the leases have remaining terms of 1 month to 13 years. The following table provides the components of lease income.
(1) Includes rent from Tower Properties, a related party, of $0 and $78 thousand for the years ended December 31, 2025 and 2024, respectively. Tower Properties Company was no longer a lessee of the Company as of January 1, 2025. The following table presents the components of the net investments in direct financing and sales-type leases.
The maturities of lease receivables at December 31, 2025 are included in the table below.
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Deposits |
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| Deposits [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Deposits | Deposits At December 31, 2025, the scheduled maturities of certificates of deposit were as follows:
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Borrowings |
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| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Borrowings | Borrowings At December 31, 2025, the Company's borrowings primarily consisted of federal funds purchased and securities sold under agreements to repurchase (repurchase agreements). The following table sets forth selected information for federal funds purchased and repurchase agreements.
Federal funds purchased and repurchase agreements comprised the majority of the Company's short-term borrowings (borrowings with an original maturity of less than one year at December 31, 2025), and $2.9 billion of these borrowings were repurchase agreements, which generally have one day maturities and are mainly comprised of non-insured customer funds secured by a portion of the Company's investment securities portfolio. Additional information about the securities pledged for repurchase agreements and repurchase agreement maturity is provided in Note 20 on Resale and Repurchase Agreements. Accrued interest for repurchase agreements was $965 thousand, $928 thousand and $695 thousand at December 31, 2025, 2024 and 2023, respectively. The Bank is a member of the Des Moines FHLB and has access to term financing from the FHLB. These borrowings are secured under a blanket collateral agreement that includes primarily residential mortgages, as well as all unencumbered assets and stock of the borrowing bank. At December 31, 2025, the Bank had no outstanding advances from the FHLB. The FHLB also issues letters of credit to secure the Bank's obligations to certain depositors of public funds, which totaled $198.4 million at December 31, 2025.
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Income Taxes |
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| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes | Income Taxes The components of income tax expense from operations for the years ended December 31, 2025, 2024 and 2023 were as follows:
The components of income tax (benefit) expense recorded directly to shareholders' equity for the years ended 2025, 2024 and 2023 were as follows:
Significant components of the Company’s deferred tax assets and liabilities at December 31, 2025 and 2024 were as follows:
Management believes it is more likely than not that the results of future operations will generate sufficient taxable income to realize the total deferred tax assets, therefore, no valuation allowance is needed for the deferred tax assets at year end. A reconciliation between the expected federal income tax expense using the federal statutory tax rate of 21%, and the Company's actual income tax expense for 2025, 2024, and 2023 is provided below. The effective tax rate is calculated by dividing income taxes by income before income taxes less the non-controlling interest expense.
In 2025, 2024, and 2023, state and local income taxes in Missouri, Illinois, and Kansas comprised the majority of the state and local income taxes, net of federal effect category listed in the table above. The gross amount of unrecognized tax benefits was $1.2 million at both December 31, 2025 and 2024, and the total amount of unrecognized tax benefits that would impact the effective tax rate, if recognized, was $1.0 million at both December 31, 2025 and 2024. The activity in the accrued liability for unrecognized tax benefits for the years ended December 31, 2025 and 2024 was as follows:
The Company and its subsidiaries are subject to income tax by federal, state and local government taxing authorities. Tax years 2022 through 2025 remain open to examination for U.S. federal income tax and for major state taxing jurisdictions. Income taxes paid for 2025, 2024, and 2023 was as follows:
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Employee Benefit Plans |
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| Retirement Benefits [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Employee Benefit Plans | Employee Benefit Plans Employee benefits charged to operating expenses are summarized in the table below. Substantially all of the Company’s employees are covered by a defined contribution (401(k)) plan, under which the Company makes matching contributions.
A portion of the Company’s employees are covered by a noncontributory defined benefit pension plan, however, participation in the pension plan is not available to employees hired after June 30, 2003. All participants are fully vested in their benefit payable upon normal retirement date, which is based on years of participation and compensation. Since January 2011, all benefits accrued under the pension plan have been frozen. However, the accounts continue to accrue interest at a stated annual rate. Certain key executives also participate in a supplemental executive retirement plan (the CERP) that the Company funds only as retirement benefits are disbursed. The CERP carries no segregated assets. The CERP continues to provide credits based on hypothetical contributions in excess of those permitted under the 401(k) plan. In the tables presented below, the pension plan and the CERP are presented on a combined basis. Under the Company’s funding policy for the defined benefit pension plan, contributions are made to a trust as necessary to satisfy the statutory minimum required contribution as defined by the Pension Protection Act, which is intended to provide for current service accruals and for any unfunded accrued actuarial liabilities over a reasonable period. To the extent that these requirements are fully covered by assets in the trust, a contribution might not be made in a particular year. No contributions to the defined benefit plan were made in 2025, 2024 or 2023. The minimum required contribution for 2026 is expected to be zero. The Company does not expect to make any further contributions in 2026 other than the necessary funding contributions to the CERP. Distributions under the CERP were $191 thousand, $185 thousand and $806 thousand during 2025, 2024 and 2023, respectively. The following items are components of the net pension cost for the years ended December 31, 2025, 2024 and 2023.
The following table sets forth the pension plans’ funded status, using valuation dates of December 31, 2025 and 2024.
The unfunded pension benefit obligation decreased $1.9 million from the prior year primarily due to greater than expected returns on plan assets. The accumulated benefit obligation, which represents the liability of a plan using only benefits as of the measurement date, was $87.4 million and $89.8 million for the combined plans on December 31, 2025 and 2024, respectively. Amounts not yet reflected in net periodic benefit cost and included in accumulated other comprehensive income (loss) at December 31, 2025 and 2024 are shown below, including amounts recognized in other comprehensive income during the periods. All amounts are shown on a pre-tax basis.
The following assumptions, on a weighted average basis, were used in accounting for the plans.
The following table shows the fair values of the Company’s pension plan assets by asset category at December 31, 2025 and 2024. Information about the valuation techniques and inputs used to measure fair value are provided in Note 17 on Fair Value Measurements.
(a) This category represents bonds (excluding mortgage-backed securities) issued by agencies such as the Government National Mortgage Association, the Federal Home Loan Mortgage Corp and the Federal National Mortgage Association. (b) This category represents mortgage-backed securities issued by the agencies mentioned in (a). (c) This category represents investment grade bonds issued in the U.S., primarily by domestic issuers, representing diverse industries. (d) This category represents investments in individual common stocks and equity funds. These holdings are diversified, largely across the electronic technology, technology services, financial services, healthcare technology, and retail trade industries. (e) As of 12/31/2025, this category consists solely of U.S. government money market mutual funds. The investment policy of the pension plan is designed for conservation of principal, within limits designed to safeguard against significant losses within the portfolio. The policy sets guidelines, which may change from time to time, regarding the types and percentages of investments held. Currently, the policy includes guidelines such as holding bonds rated investment grade or better and prohibiting investment in Company stock. The plan does not utilize derivatives. Management believes there are no significant concentrations of risk within the plan asset portfolio at December 31, 2025. Under the current policy, the plan's long-term target allocation is 100% invested in fixed income securities. The Company regularly reviews its policies on investment mix and may make changes depending on economic conditions and perceived investment risk. The assumed overall expected long-term rate of return on pension plan assets used in calculating 2025 pension plan expense was 4.75%. Determination of the plan’s expected rate of return is based upon historical and anticipated returns of the asset classes invested in by the pension plan and the allocation strategy currently in place among those classes. The rate used in plan calculations may be adjusted by management for current trends in the economic environment. The 10-year annualized return for the Company’s pension plan was 5.0%. During 2025, the plan’s assets gained 8.0% of their value, compared to a gain of 2.9% in 2024. Returns for any plan year may be affected by changes in the stock market and interest rates. The Company expects to incur pension expense of $1.1 million in 2026, compared to $1.5 million in 2025. The following future benefit payments are expected to be paid:
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Stock-Based Compensation and Directors Stock Purchase Plan |
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| Share-Based Payment Arrangement, Noncash Expense [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Stock-Based Compensation | Stock-Based Compensation and Directors Stock Purchase Plan* The Company’s stock-based compensation is provided under a shareholder-approved plan that allows for issuance of various types of awards, including stock options, stock appreciation rights, restricted stock and restricted stock units, performance awards and stock-based awards. During the past three years, stock-based compensation has been issued in the form of nonvested restricted stock awards and stock appreciation rights. At December 31, 2025, 6,079,955 shares remained available for issuance under the plan. The stock-based compensation expense that was charged against income was $17.3 million, $17.0 million and $17.1 million for the years ended December 31, 2025, 2024 and 2023, respectively. The total income tax benefit recognized in the income statement for share-based compensation arrangements was $3.2 million for each of the years ended December 31, 2025, 2024 and 2023, respectively. Nonvested Restricted Stock Awards Nonvested stock is awarded to key employees by action of the Company's Compensation and Human Resources Committee and Board of Directors. These awards generally vest after 4 to 7 years of continued employment, but vesting terms may vary according to the specifics of the individual grant agreement. There are restrictions as to transferability, sale, pledging, or assigning, among others, prior to the end of the vesting period. Dividend and voting rights are conferred upon grant of restricted stock awards. A summary of the status of the Company’s nonvested share awards as of December 31, 2025 and changes during the year then ended is presented below.
The total fair value (at vest date) of shares vested during 2025, 2024 and 2023 was $17.1 million, $13.9 million and $20.9 million, respectively. Stock Appreciation Rights Stock appreciation rights (SARs) are granted with exercise prices equal to the market price of the Company’s stock at the date of grant. SARs generally vest ratably over 4 years of continuous service and have 10-year contractual terms. All SARs must be settled in stock under provisions of the plan. A summary of SAR activity during 2025 is presented below.
In determining compensation cost, the Black-Scholes option-pricing model is used to estimate the fair value of SARs on date of grant. The Black-Scholes model is a closed-end model that uses various assumptions as shown in the following table. Expected volatility is based on historical volatility of the Company’s stock. The Company uses historical exercise behavior and other factors to estimate the expected term of the SARs, which represents the period of time that the SARs granted are expected to be outstanding. The risk-free rate for the expected term is based on the U.S. Treasury zero coupon spot rates in effect at the time of grant. The per share average fair value and the model assumptions for SARs granted during the past three years are shown in the table below.
Additional information about SARs exercised is presented below.
As of December 31, 2025, there was $34.3 million of unrecognized compensation cost related to nonvested SARs and stock awards. This cost is expected to be recognized over a weighted average period of approximately 3.0 years. Directors Stock Purchase Plan The Company has a directors stock purchase plan whereby outside directors of the Company and its subsidiaries may elect to use their directors’ fees to purchase Company stock at market value each month end. Remaining shares available for issuance under this plan were 50,810 at December 31, 2025. Shares authorized for issuance under the plan were increased to 150,000 shares in February 2022. In 2025, 32,330 shares were purchased at an average price of $57.53, and in 2024, 30,755 shares were purchased at an average price of $55.59. * All share and per share amounts in this note have been restated for the 5% common stock dividend distributed in 2025.
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Accumulated Other Comprehensive Income |
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| Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income The table below shows the activity and accumulated balances for components of other comprehensive income. The largest component is the unrealized holding gains and losses on available for sale debt securities. Another component is the amortization from other comprehensive income of losses associated with pension benefits, which occurs as the losses are included in current net periodic pension cost. The remaining component is gains and losses in fair value on certain interest rate floors that have been designated as cash flow hedges, including interest rate floors terminated in prior years. For those terminated floors, the realized gains are amortized into interest income through the original maturity dates of the floors. Information about unrealized gains and losses on securities can be found in Note 3, information about unrealized gains and losses on pension plans can be found in Note 10, and information about unrealized gains and losses on cash flow hedge derivatives is located in Note 19.
(1) The pre-tax amounts reclassified from accumulated other comprehensive income to current earnings are included in "investment securities gains (losses), net" in the consolidated statements of income. (2) The pre-tax amounts reclassified from accumulated other comprehensive income to current earnings are included in "interest and fees on loans" in the consolidated statements of income.
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Segments |
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| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segments | Segments The Company segregates financial information for use in assessing its performance and allocating resources among three operating segments: Retail Banking, Commercial, and Wealth. The Retail Banking segment, previously called the Consumer segment, consists of various consumer loan and deposit products offered through its retail branch network of approximately 140 locations. This segment also includes residential mortgage, indirect and other consumer loan financing businesses, along with debit and credit card loan and fee businesses. The Commercial segment provides corporate lending (including the Small Business Banking product line within the branch network), leasing, and international services, along with business and governmental deposit products and commercial cash management services. This segment also includes both merchant and commercial bank card products as well as the Commercial Tradable Products division, which sells fixed-income securities, underwrites municipal bonds and provides securities safekeeping and accounting services to its business and correspondent bank customers. The Wealth segment provides traditional trust and estate planning, advisory and discretionary investment management, and brokerage services. This segment also provides various loan and deposit related services to its private banking customers. The Company’s business line reporting system derives segment information from the internal profitability reporting system used by management to monitor and manage the financial performance of the Company. This information is based on internal management accounting procedures and methods, which have been developed to reflect the underlying economics of the businesses. These methodologies are applied in connection with funds transfer pricing and assignment of overhead costs among segments. Funds transfer pricing was used in the determination of net interest income. A standard cost for funds used is applied to assets, and a credit for funds provided is applied to liabilities based on their maturity, prepayment and/or repricing characteristics. Income and expense that directly relate to segment operations are recorded in the segment when incurred. Expenses that indirectly support the segments are allocated based on the most appropriate method available. The Company uses a funds transfer pricing method to value funds used (e.g., loans, fixed assets, and cash) and funds provided (e.g., deposits, borrowings, and equity) by the business segments and their components. This process assigns a specific value to each new source or use of funds with a maturity, based on current swap rates, thus determining an interest spread at the time of the transaction. Non-maturity assets and liabilities are valued using weighted average pools. The funds transfer pricing process attempts to remove interest rate risk from valuation, allowing management to compare profitability under various rate environments. The Company’s chief executive officer is its chief operating decision maker ("CODM"). The CODM is the primary individual in control of resource allocation, and the allocation determinations are made in consultation with the Company’s executive management committee, of which the CODM is a member. The Company’s CODM primarily utilizes net income before taxes to evaluate each segment’s performance and allocate resources (including employees, financial, or capital resources), primarily through the Company’s annual budgeting process and periodic segment performance reviews. To manage operations and make decisions regarding resource allocations, the CODM is regularly provided and reviews total non-interest expense at a consolidated level and total non-interest expense for each segment. The following tables present selected financial information by segment and reconciliations of combined segment totals to consolidated totals. There were no material intersegment revenues between the three segments. Management periodically makes changes to methods of assigning costs and income to its business segments to better reflect operating results. If appropriate, these changes are reflected in prior year information presented below. Net interest income allocated among the segments prior to 2024 has been restated to reflect a funds transfer pricing methodology change implemented on January 1, 2024 for all deposit types, except certificates of deposit. The new methodology moves from a rolling pool to a profitability range methodology. The new methodology more accurately reflects the profitability of affected deposits relative to current rates and removes most interest rate risk from business segments. Additionally, the Company changed its management of its portfolio of residential mortgage loans that it retains, and as a result, the Company began including those loans in the Retail Banking segment on January 1, 2023. These loans had previously been included in the Other/Elimination column. As a result of this change, loans of approximately $1.9 billion were reclassified from the Other/Elimination column into the Retail Banking segment in 2023 and were restated below to also reflect this change. There were no changes to segment composition in conjunction with the Company's renaming the Consumer segment to the Retail Banking segment. Segment Income Statement Data
Non-interest expense for the Retail Banking, Commercial, and Wealth segments above is primarily comprised of salaries, incentives, benefits, and allocated overhead costs for service and support. Non-interest expense for the segments also includes expenses for data processing and software, occupancy, and professional and other services. The segment activity, as shown above, includes both direct and allocated items. Amounts in the “Other/Elimination” column include activity not related to the segments, such as that relating to administrative functions, the investment securities portfolio, and the effect of certain expense allocations to the segments. The provision for credit losses in this category contains the difference between net loan charge-offs assigned directly to the segments and the recorded provision for credit loss expense. Included in this category’s net interest income are earnings of the investment portfolio, which are not allocated to a segment. Additionally, interest expense on the Company's brokered deposits, is included in this column, as the Company's brokered deposits are not allocated to a segment. Segment Balance Sheet Data
The above segment balances include only those items directly associated with the segment. The “Other/Elimination” column includes unallocated bank balances not associated with a segment (such as investment securities, federal funds sold and brokered deposits), balances relating to certain other administrative and corporate functions, and eliminations between segment and non-segment balances. This column also includes the resulting effect of allocating such items as float, deposit reserve and capital for the purpose of computing the cost or credit for funds used/provided. The Company’s reportable segments are strategic lines of business that offer different products and services. They are managed separately because each line services a specific customer need, requiring different performance measurement analyses and marketing strategies. The performance measurement of the segments is based on the management structure of the Company and is not necessarily comparable with similar information for any other financial institution. The information is also not necessarily indicative of the segments’ financial condition and results of operations if they were independent entities.
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Common Stock |
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| Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Common Stock and EPS | Common Stock* On December 16, 2025, the Company distributed a 5% stock dividend on its $5 par common stock for the 32nd consecutive year. All per common share data in this report has been restated to reflect the stock dividend. The Company applies the two-class method of computing income per share, as nonvested share-based awards that pay non-forfeitable common stock dividends are considered securities which participate in undistributed earnings with common stock. The two-class method requires the calculation of separate income per share amounts for the nonvested share-based awards and for common stock. Income per share attributable to common stock is shown in the following table. Nonvested share-based awards are further discussed in Note 11, Stock-Based Compensation. Basic income per share is based on the weighted average number of common shares outstanding during the year. Diluted income per share gives effect to all dilutive potential common shares that were outstanding during the year. Presented below is a summary of the components used to calculate basic and diluted income per common share, which have been restated for all stock dividends.
Unexercised stock appreciation rights of 296 thousand, 405 thousand and 400 thousand were excluded from the computation of diluted income per share for the years ended December 31, 2025, 2024 and 2023, respectively, because their inclusion would have been anti-dilutive. The Company maintains a treasury stock buyback program authorized by its Board of Directors. The most recent authorization in October 2025 approved future purchases of 5,000,000 shares of the Company's common stock. At December 31, 2025, 3,186,721 shares of common stock remained available for purchase under the current authorization. The table below shows activity in the outstanding shares of the Company’s common stock during the past three years. Shares in the table below are presented on an historical basis and have not been restated for the annual 5% stock dividends.
* Except as noted in the above table, all share and per share amounts in this footnote have been restated for the 5% common stock dividend distributed in 2025.
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Regulatory Capital Requirements |
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| Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Regulatory Capital Requirements | Regulatory Capital Requirements The Company is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and additional discretionary actions by regulators that could have a direct material effect on the Company’s financial statements. The regulations require the Company to meet specific capital adequacy guidelines that involve quantitative measures of the Company’s assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The Company’s capital classification is also subject to qualitative judgments by the regulators about components, risk weightings and other factors. The following tables show the capital amounts and ratios for the Company (on a consolidated basis) and the Bank, together with the minimum capital adequacy and well-capitalized capital requirements, at the last two year ends.
The minimum required ratios for well-capitalized banks (under prompt corrective action provisions) are 6.5% for Tier I common capital, 8.0% for Tier I capital, 10.0% for Total capital and 5.0% for the leverage ratio. At December 31, 2025 and 2024, the Company met all capital requirements to which it is subject, and the Bank’s capital position exceeded the regulatory definition of well-capitalized.
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Revenue from Contracts with Customers Revenue from Contracts with Customers |
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| Revenue from Contract with Customer [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revenue from Contracts with Customers | Revenue from Contracts with Customers Revenue from contracts with customers, Accounting Standard Codification 606 ("ASC 606"), requires revenue recognition for the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. For the year ended December 31, 2025, approximately 63% of the Company’s total revenue was comprised of net interest income, which is not within the scope of this guidance. Of the remaining revenue, those items that were subject to this guidance mainly included fees for bank card, trust, deposit account services and consumer brokerage services. The following table disaggregates revenue from contracts with customers by major product line.
(1) This revenue is not within the scope of ASC 606, and includes fees relating to bond trading activities, loan fees and sales, derivative instruments, standby letters of credit and various other transactions. The following table presents the opening and closing receivable balances for the years ended December 31, 2025 and 2024 for the Company’s significant revenue categories from contracts with customers.
For these revenue categories, none of the transaction price has been allocated to performance obligations that are unsatisfied as of the end of a reporting period. A description of these revenue categories follows. Bank Card Transaction Fees The following table presents the components of bank card fee income.
The majority of debit and credit card fees are reported in the Retail Banking segment, while corporate card and merchant fees are reported in the Commercial segment. Debit and Credit Card Fees The Company issues debit and credit cards to its retail and commercial banking customers who use the cards to purchase goods and services from merchants through an electronic payment system. As a card issuer, the Company earns fees, including interchange income, for processing the cardholder’s purchase transaction with a merchant through a settlement network. Purchases are charged directly to a customer’s checking account (in the case of a debit card), or are posted to a customer’s credit card account. The fees earned are established by the settlement network and are dependent on the type of transaction processed but are typically based on a per unit charge. Interchange income, the largest component of debit and credit card fees, is settled daily through the networks. The services provided to the cardholders include issuing and maintaining cards, settling purchases with merchants, and maintaining memberships in various card networks to facilitate processing. These services are considered one performance obligation, as one of the services would not be performed without the others. The performance obligation is satisfied as services are rendered for each purchase transaction, and income is immediately recognized. In order to participate in the settlement network process, the Company must pay various transaction-related costs, established by the networks, including membership fees and a per unit charge for each transaction. These expenses are recorded net of the card fees earned. Consumer credit card products offer cardholders rewards that can be later redeemed for cash, goods or services to encourage card usage. Reward programs must meet network requirements based on the type of card issued. The expense associated with the rewards granted are recorded net of the credit card fees earned. Commercial card products offer cash rewards to corporate cardholders to encourage card usage in facilitating corporate payments. The Company pays cash rewards based on contractually agreed upon amounts, normally as a percent of each sales transaction. The expense associated with the cash rewards program is recorded net of the corporate card fees earned. Merchant Fees The Company offers merchant processing services to its business customers to enable them to accept credit and debit card payments. Merchant processing activities include gathering merchant sales information, authorizing sales transactions and collecting the funds from card issuers using the networks. The merchant is charged a merchant discount fee for the services based on agreed upon pricing between the merchant and the Company. Merchant fees are recorded net of outgoing interchange costs paid to the card issuing banks and net of other network costs as shown in the table above. Merchant services provided are considered one performance obligation, as one of the services would not be performed without the others. The performance obligation is satisfied as services are rendered for each settlement transaction and income is immediately recognized. Income earned from merchant fees settles with the customer according to terms negotiated in individual customer contracts. The majority of customers settle with the Company at least monthly. Trust Fees The following table shows the components of revenue within trust fees, which are reported within the Wealth segment.
The Company provides trust and asset management services to both private client and institutional trust customers including asset custody, investment advice, and reporting and administrative services. Other specialized services such as tax preparation, financial planning, representation and other related services are provided as needed. Trust fees are generally earned monthly and billed based on a rate multiplied by the fair value of the customer's trust assets. The majority of customer trust accounts are billed monthly. However, some accounts are billed quarterly, and a small number of accounts are billed semi-annually or annually, in accordance with agreements in place with the customer. The Company accrues trust fees monthly based on an estimate of fees due and either directly charges the customer’s account the following month or invoices the customer for fees due according to the billing schedule. The Company maintains written product pricing information which is used to bill each trust customer based on the services provided. Providing trust services is considered to be a single performance obligation that is satisfied on a monthly basis, involving the monthly custody of customer assets, statement rendering, periodic investment advice where applicable, and other specialized services as needed. As such, performance obligations are considered to be satisfied at the conclusion of each month while trust fee income is also recognized monthly. Deposit Account Charges and Other Fees The following table shows the components of revenue within deposit account charges and other fees.
Approximately 71% of this revenue is reported in the Commercial segment, while the remainder is reported in the Retail Banking segment. The Company provides corporate cash management services to its business and non-profit customers to meet their various transaction processing needs. Such services include deposit and check processing, lockbox, remote deposit, reconciliation, online banking and other similar transaction processing services. The Company maintains unit prices for each type of service, and the customer is billed based on transaction volumes processed monthly. The customer is usually billed either monthly or quarterly, however, some customers may be billed semi-annually or annually. The customer may pay for the cash management services either by paying in cash or using the value of deposit balances (formula provided to the customer) held at the Company. The Company’s performance obligation for corporate cash management services is the processing of items over a monthly term, and the obligations are satisfied at the conclusion of each month. Overdraft fees are charged to customers when daily checks and other withdrawals to customers’ accounts exceed balances on hand. Fees are based on a unit price multiplied by the number of items processed whose total amounts exceed the available account balance. The daily overdraft charge is calculated, and the fee is posted to the customer’s account each day. The Company’s performance obligation for overdraft transactions is based on the daily transaction processed and the obligation is satisfied as each day’s transaction processing is concluded. Other deposit fees include numerous smaller fees such as monthly statement fees, foreign ATM processing fees, identification restoration fees, and stop payment fees. Such fees are mostly billed to customers directly on their monthly deposit account statements, or in the case of foreign ATM processing fees, the fee is charged to the customer on the day that transactions are processed. Performance obligations for all of these various services are satisfied at the time that the service is rendered. Consumer Brokerage Services Consumer brokerage services revenue is comprised of commissions received upon the execution of purchases and sales of mutual fund shares and equity securities, in addition to sales of annuities and certain limited insurance products, in an agency capacity. Also, commissions are earned on professionally managed advisory programs. Revenue from these services is generally recognized as a commission at the time of the transaction’s execution. Mutual fund and other distribution fees are recognized upon initial transaction execution as well as in future periods as customers continue to hold amounts in those mutual funds. Commission revenue for advisory services is recognized ratably over the contract term. Nearly all of the Company’s consumer brokerage services revenue is recorded in the Wealth segment. Other Non-Interest Income from Contracts with Customers Other non-interest income from contracts with customers consists mainly of various transaction-driven revenue streams such as ATM fees, check sales and wire fees, cash sweep commissions, underwriting fees, and gains on sales of tax credits. Performance obligations for these services consist mainly of the execution of a single transaction at a single point in time. Fees from these revenue sources are recognized when the performance obligation is completed, at which time cash is received by the Company.
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Fair Value Measurements |
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements | Fair Value Measurements The Company uses fair value measurements to record fair value adjustments to certain financial and nonfinancial assets and liabilities and to determine fair value disclosures. Various financial instruments such as available for sale debt securities, equity securities, trading debt securities, certain investments relating to private equity activities, and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record other assets and liabilities at fair value on a nonrecurring basis, such as mortgage servicing rights and certain other investment securities. These nonrecurring fair value adjustments typically involve lower of cost or fair value accounting, or write-downs of individual assets. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Depending on the nature of the asset or liability, the Company uses various valuation techniques and assumptions when estimating fair value. For accounting disclosure purposes, a three-level valuation hierarchy of fair value measurements has been established. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The three levels are defined as follows: •Level 1 – inputs to the valuation methodology are quoted prices for identical assets or liabilities in active markets. •Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, and inputs that are observable for the assets or liabilities, either directly or indirectly (such as interest rates, yield curves, and prepayment speeds). •Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value. These may be internally developed, using the Company’s best information and assumptions that a market participant would consider. When determining the fair value measurements for assets and liabilities required or permitted to be recorded or disclosed at fair value, the Company considers the principal or most advantageous market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability. When possible, the Company looks to active and observable markets to price identical assets or liabilities. When identical assets and liabilities are not traded in active markets, the Company looks to observable market data for similar assets and liabilities. Nevertheless, certain assets and liabilities are not actively traded in observable markets, and the Company must use alternative valuation techniques to derive an estimated fair value measurement. Instruments Measured at Fair Value on a Recurring Basis The table below presents the carrying values of assets and liabilities measured at fair value on a recurring basis at December 31, 2025 and 2024. There were no transfers among levels during these years.
*The fair value of each class of derivative is shown in Note 19. Valuation methods for instruments measured at fair value on a recurring basis Following is a description of the Company’s valuation methodologies used for instruments measured at fair value on a recurring basis: Residential mortgage loans held for sale The Company originates fixed rate, first lien residential mortgage loans that are intended for sale in the secondary market. Fair value is based on quoted secondary market prices for loans with similar characteristics, which are adjusted to include the embedded servicing value in the loans. This adjustment represents an unobservable input to the valuation but is not considered significant given the relative insensitivity of the valuation to changes in this input. Accordingly, these loan measurements are classified as Level 2. Available for sale debt securities For available for sale securities, changes in fair value are recorded in other comprehensive income. This portfolio comprises the majority of the assets which the Company records at fair value. Most of the portfolio, which includes government-sponsored enterprise, mortgage-backed and asset-backed securities, are priced utilizing industry-standard models that consider various assumptions, including time value, yield curves, volatility factors, prepayment speeds, default rates, loss severity, current market and contractual prices for the underlying financial instruments, as well as other relevant economic measures. Substantially all of these assumptions are observable in the marketplace, can be derived from observable data, or are supported by observable levels at which transactions are executed in the marketplace. These measurements are classified as Level 2 in the fair value hierarchy. Where quoted prices are available in an active market, the measurements are classified as Level 1. Most of the Level 1 measurements apply to U.S. Treasury obligations. The fair values of Level 1 and 2 securities in the available for sale portfolio are prices provided by a third-party pricing service. The prices provided by the third-party pricing service are based on observable market inputs, as described in the sections below. On a quarterly basis, the Company compares these prices to other independent sources for the same and similar securities. Variances are analyzed, and, if appropriate, additional research is conducted with the third-party pricing service. Based on this research, the pricing service may affirm or revise its quoted price. No significant adjustments have been made to the prices provided by the pricing service. The pricing service also provides documentation on an ongoing basis that includes reference data, inputs and methodology by asset class, which is reviewed by the Company to ensure that security placement within the fair value hierarchy is appropriate. Valuation methods and inputs, by class of security: •U.S. government and federal agency obligations U.S. treasury bills, bonds and notes, including inflation-protected securities, are valued using quoted prices from active markets. •Government-sponsored enterprise obligations Government-sponsored enterprise obligations are evaluated using cash flow valuation models. Inputs used are live market data, cash settlements, Treasury market yields, and floating rate indices such as SOFR, CMT, and Prime. •State and municipal obligations, excluding auction rate securities A yield curve is generated and applied to bond sectors, and individual bond valuations are extrapolated. Inputs used to generate the yield curve are bellwether issue levels, established trading spreads between similar issuers or credits, historical trading spreads over widely accepted market benchmarks, new issue scales, and verified bid information. Bid information is verified by corroborating the data against external sources such as broker-dealers, trustees/paying agents, issuers, or non-affiliated bondholders. •Mortgage and asset-backed securities Collateralized mortgage obligations and other asset-backed securities are valued at the tranche level. For each tranche valuation, the process generates predicted cash flows for the tranche, applies a market based (or benchmark) yield/spread for each tranche, and incorporates deal collateral performance and tranche level attributes to determine tranche-specific spreads to adjust the benchmark yield. Tranche cash flows are generated from new deal files and prepayment/default assumptions. Tranche spreads are based on tranche characteristics such as average life, type, volatility, ratings, underlying collateral and performance, and prevailing market conditions. The appropriate tranche spread is applied to the corresponding benchmark, and the resulting value is used to discount the cash flows to generate an evaluated price. Valuation of agency pass-through securities, typically issued under GNMA, FNMA, FHLMC, and SBA programs, are primarily derived from information from the to-be-announced (TBA) market. This market consists of generic mortgage pools which have not been received for settlement. Snapshots of the TBA market, using live data feeds distributed by multiple electronic platforms, are used in conjunction with other indices to compute a price based on discounted cash flow models. •Other debt securities Other debt securities are valued using active markets and inter-dealer brokers as well as option adjusted spreads. The spreads and models use yield curves, terms and conditions of the bonds, and any special features (e.g., call or put options and redemption features). Trading debt securities The securities in the Company’s trading portfolio are priced by averaging several broker quotes for similar instruments and are classified as Level 2 measurements. Certain U.S. Treasury obligations within the trading portfolio are classified as Level 1 measurements. Equity securities with readily determinable fair values Equity securities are priced using the market prices for each security from the major stock exchanges or other electronic quotation systems. These are generally classified as Level 1 measurements. Stocks which trade infrequently are classified as Level 2. Private equity investments These securities are held by the Company’s private equity subsidiary and are included in other investment securities in the consolidated balance sheets. Due to the absence of quoted market prices, valuation of these nonpublic investments requires significant management judgment. These fair value measurements, which are discussed in the Level 3 Inputs section of this note, are classified as Level 3. Derivatives The Company’s derivative instruments include interest rate swaps and floors, foreign exchange forward contracts, and certain credit risk guarantee agreements. When appropriate, the impact of credit standing as well as any potential credit enhancements, such as collateral, has been considered in the fair value measurement. •Valuations for interest rate swaps are derived from a proprietary model whose significant inputs are readily observable market parameters, primarily yield curves used to calculate current exposure. Counterparty credit risk is incorporated into the model and calculated by applying a net credit spread over SOFR to the swap's total expected exposure over time. The net credit spread is comprised of spreads for both the Company and its counterparty, derived from probability of default and other loss estimate information obtained from a third party credit data provider or from the Company's Credit department when not otherwise available. The credit risk component is not significant compared to the overall fair value of the swaps. The results of the model are constantly validated through comparison to active trading in the marketplace. Parties to swaps requiring central clearing are required to post collateral (generally in the form of cash or marketable securities) to an authorized clearing agency that holds and monitors the collateral. The Company's clearing counterparty characterizes a component of this collateral, known as variation margin, as a legal settlement of the derivative contract exposure, and as a result, the variation margin is considered in determining the fair value of the derivative. Valuations for interest rate floors are also derived from a proprietary model whose significant inputs are readily observable market parameters, primarily yield curves and volatility surfaces. The model uses market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates fall below the strike rates of the floors. The model also incorporates credit valuation adjustments of both the Company's and the counterparties' non-performance risk. The credit valuation adjustment component is not significant compared to the overall fair value of the floors. The fair value measurements of interest rate swaps and floors are classified as Level 2 due to the observable nature of the significant inputs utilized. •Fair value measurements for foreign exchange contracts are derived from a model whose primary inputs are quotations from global market makers and are classified as Level 2. •The Company’s contracts related to credit risk guarantees are valued under a proprietary model which uses unobservable inputs and assumptions about the creditworthiness of the counterparty (generally a Bank customer). Customer credit spreads, which are based on probability of default and other loss estimates, are calculated internally by the Company's Credit department, as mentioned above, and are based on the Company's internal risk rating for each customer. Because these inputs are significant to the measurements, they are classified as Level 3. •Derivatives relating to residential mortgage loan sale activity include commitments to originate mortgage loans held for sale, forward loan sale contracts, and forward commitments to sell TBA securities. The fair values of loan commitments and sale contracts are estimated using quoted market prices for loans similar to the underlying loans in these instruments. The valuations of loan commitments are further adjusted to include embedded servicing value and the probability of funding. These assumptions are considered Level 3 inputs and are significant to the loan commitment valuation; accordingly, the measurement of loan commitments is classified as Level 3. The fair value measurement of TBA contracts is based on security prices published on trading platforms and is classified as Level 2. Assets held in trust for deferred compensation plan Assets held in a third party trust for the Company’s deferred compensation plan consist of investments in mutual funds. The fair value measurements are based on quoted prices in active markets and classified as Level 1. The Company has recorded an asset representing the total investment amount. The Company has also recorded a corresponding liability, representing the Company’s liability to the plan participants. The changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows:
* Included in "net unrealized gains (losses) on securities" in the consolidated statements of comprehensive income. Gains and losses on the Level 3 assets and liabilities in the table above are reported in the following income categories:
Level 3 Inputs The Company's significant Level 3 measurements, which employ unobservable inputs that are readily quantifiable, pertain to investments in portfolio concerns held by the Company's private equity subsidiaries. Information about these inputs as of December 31, 2025 is presented in the table below.
* Unobservable inputs were weighted by the relative fair value of the instruments. The fair values of the Company's private equity investments are based on a determination of fair value of the investee company less preference payments assuming the sale of the investee company. Investee companies are normally non-public entities. The fair value of the investee company is determined by reference to the investee's total earnings before interest, depreciation/amortization, and income taxes (EBITDA) multiplied by an EBITDA factor. EBITDA is normally determined based on a trailing prior period adjusted for specific factors including current economic outlook, investee management, and specific unique circumstances such as sales order information, major customer status, regulatory changes, etc. The EBITDA multiple is based on management's review of published trading multiples for recent private equity transactions and other judgments and is derived for each individual investee. The fair value of the Company's investment is then calculated based on its ownership percentage in the investee company. On a quarterly basis, these fair value analyses are reviewed by a valuation committee consisting of investment managers and senior Company management. Instruments Measured at Fair Value on a Nonrecurring Basis For assets measured at fair value on a nonrecurring basis during 2025 and 2024, and still held as of December 31, 2025 and 2024, the following table provides the adjustments to fair value recognized during the respective periods, the level of valuation assumptions used to determine each adjustment, and the carrying value of the related individual assets or portfolios at December 31, 2025 and 2024.
Valuation methods for instruments measured at fair value on a nonrecurring basis Following is a description of the Company’s valuation methodologies used for other financial and nonfinancial instruments measured at fair value on a nonrecurring basis. Collateral dependent loans While the overall loan portfolio is not carried at fair value, the Company periodically records nonrecurring adjustments to the carrying value of loans based on fair value measurements for partial charge-offs of the uncollectible portions of those loans. Nonrecurring adjustments also include certain impairment amounts for collateral dependent loans when establishing the allowance for credit losses on loans. Such amounts are generally based on the fair value of the underlying collateral supporting the loan. In determining the value of real estate collateral, the Company relies on external and internal appraisals of property values depending on the size and complexity of the real estate collateral. The Company maintains a staff of qualified appraisers who also review third party appraisal reports for reasonableness. In the case of non-real estate collateral, reliance is placed on a variety of sources, including external estimates of value and judgments based on the experience and expertise of internal specialists. Values of all loan collateral are regularly reviewed by credit administration. Unobservable inputs to these measurements, which include estimates and judgments often used in conjunction with appraisals, are not readily quantifiable. These measurements are classified as Level 3. Nonrecurring adjustments to the carrying value of loans based on fair value measurements at December 31, 2025 and 2024 are shown in the table above. Foreclosed assets Foreclosed assets consist of loan collateral which has been repossessed through foreclosure. This collateral is comprised of commercial and residential real estate and other non-real estate property, including auto, marine and recreational vehicles. Foreclosed assets are recorded as held for sale initially at the lower of the loan balance or fair value of the collateral less estimated selling costs. Subsequent to foreclosure, valuations are updated periodically, and the assets may be marked down further, reflecting a new cost basis. Fair value measurements may be based upon appraisals, third-party price opinions, or internally developed pricing methods. These measurements are classified as Level 3. Long-lived assets When investments in branch facilities and various office buildings are determined to be impaired, their carrying values are written down to estimated fair value, or estimated fair value less cost to sell if the property is held for sale. Fair value is estimated in a process which considers current local commercial real estate market conditions and the judgment of the sales agent and often involves obtaining third party appraisals from certified real estate appraisers. The carrying amounts of these real estate holdings are regularly monitored by real estate professionals employed by the Company. These fair value measurements are classified as Level 3. Unobservable inputs to these measurements, which include estimates and judgments often used in conjunction with appraisals, are not readily quantifiable.
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Fair Value Of Financial Instruments |
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| Fair Value of Financial Instruments | Fair Value of Financial Instruments The carrying amounts and estimated fair values of financial instruments held by the Company are set forth below. Fair value estimates are made at a specific point in time based on relevant market information. They do not reflect any premium or discount that could result from offering for sale at one time the Company's entire holdings of a particular financial instrument. Because no market exists for many of the Company's financial instruments, fair value estimates are based on judgments regarding future expected loss experience, risk characteristics and economic conditions. These estimates are subjective, involve uncertainties, and cannot be determined with precision. Changes in assumptions could significantly affect the estimates. The estimated fair values of the Company’s financial instruments and the classification of their fair value measurement within the valuation hierarchy are as follows at December 31, 2025 and 2024:
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Derivative Instruments |
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| Derivative Instrument Detail [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Instruments | Derivative Instruments The notional amounts of the Company’s derivative instruments are shown in the table below. These contractual amounts, along with other terms of the derivative, are used to determine amounts to be exchanged between counterparties and are not a measure of loss exposure. The Company's derivatives are not accounted for as accounting hedges except for the interest rate floors, as discussed below.
Interest rate swap contracts are sold to commercial customers who wish to modify their interest rate sensitivity. The customers are engaged in a variety of businesses, including real estate, manufacturing, retail product distribution, education, and retirement communities. These interest rate swap contracts with customers are offset by matching interest rate swap contracts purchased by the Company from other financial institutions (dealers). Contracts with dealers that require central clearing are novated to a clearing agency who becomes the Company's counterparty. Because of the matching terms of the offsetting contracts, in addition to collateral provisions which mitigate the impact of non-performance risk, changes in fair value subsequent to initial recognition have a minimal effect on earnings. Many of the Company’s interest rate swap contracts with large financial institutions contain contingent features relating to debt ratings or capitalization levels. Under these provisions, if the Company’s debt rating falls below investment grade or if the Company ceases to be “well-capitalized” under risk-based capital guidelines, certain counterparties can require immediate and ongoing collateralization on interest rate swaps in net liability positions or instant settlement of the contracts. The Company maintains debt ratings and capital well above those minimum requirements. As of December 31, 2025, the Company held four interest rate floors indexed to 1-month SOFR to hedge the risk of declining interest rates on certain floating rate commercial loans. The floors have a combined notional value of $2.0 billion and are forward-starting. Each of the four interest rate floors has a six-year term and a notional amount of $500 million. In the event that the index rate falls below zero, the maximum rate that the Company can earn on the notional amount of each floor is limited to the strike rate. Information about the floors is provided in the table below.
The premium paid for the floors totaled $90.2 million, and at December 31, 2025, the maximum length of time over which the Company is hedging its exposure to lower rates is approximately 5.5 years. These interest rate floors qualified and were designated as cash flow hedges and were assessed for effectiveness using regression analysis. The change in the fair value of these interest rate floors is recorded in AOCI, net of the amortization of the premiums paid, which is recorded against interest and fees on loans in the consolidated statements of income. As of December 31, 2025, net deferred losses on the interest rate floors totaled $26.2 million (pre-tax) and were recorded in AOCI in the consolidated balance sheet. As of December 31, 2025, it is expected that $11.1 million (pre-tax) interest rate floor premium amortization will be reclassified from AOCI into earnings over the next 12 months for the outstanding interest rate floors. During the year ended December 31, 2020, the Company monetized three interest rate floors that were previously classified as cash flow hedges with a combined notional balance of $1.5 billion and an asset fair value of $163.2 million. As of December 31, 2025, the total realized gains on the monetized cash flow hedges remaining in AOCI was $8.8 million (pre-tax), which will be reclassified into interest income over the next 12 months. The estimated amount of net gains remaining in AOCI related to the monetized cash flow hedges at December 31, 2025 that is expected to be reclassified into income within the next 12 months is $8.8 million. The Company also contracts with other financial institutions, as a guarantor or beneficiary, to share credit risk associated with certain interest rate swaps through risk participation agreements. The Company’s risks and responsibilities as guarantor are further discussed in Note 21 on Commitments, Contingencies and Guarantees. In addition, the Company enters into foreign exchange contracts, which are mainly comprised of contracts with customers to purchase or deliver specific foreign currencies at specific future dates. Under its program to sell residential mortgage loans in the secondary market, the Company designates certain newly-originated residential mortgage loans as held for sale. Derivative instruments arising from this activity include mortgage loan commitments and forward loan sale contracts. Changes in the fair values of the loan commitments and funded loans prior to sale that are due to changes in interest rates are economically hedged with forward contracts to sell residential mortgage-backed securities in the to-be-announced (TBA) market. These forward TBA contracts are also considered to be derivatives and are settled in cash at the security settlement date. The fair values of the Company’s derivative instruments, whose notional amounts are listed above, are shown in the table below. Information about the valuation methods used to determine fair value is provided in Note 17 on Fair Value Measurements. As stated in the summary of significant accounting policies, derivative instruments and their related gains and losses are presented as operating cash flows in the consolidated statement of cash flows. The Company's policy is to present its derivative assets and derivative liabilities on a gross basis in its consolidated balance sheets, and these are reported in other assets and other liabilities. In prior years, certain collateral posted to and from the Company's clearing counterparty has been applied to the fair values of the cleared swap. There was no reduction to positive or negative fair values of cleared swaps at December 31, 2025 and December 31, 2024.
The Company made an election to exclude the initial premiums paid on the interest rate floors from the hedge effectiveness measurement. Those initial premiums are amortized over the periods between the premium payment month and the contract maturity month. The pre-tax effects of the gains and losses (both the included and excluded amounts for hedge effectiveness assessment) recognized in the other comprehensive income from the cash flow hedging instruments and the amounts reclassified from accumulated other comprehensive income into income (both included and excluded amounts for hedge effectiveness measurement) are shown in the table below.
The gain and loss recognized through various derivative instruments on the consolidated statements of income are shown in the table below.
The following table shows the extent to which assets and liabilities relating to derivative instruments have been offset in the consolidated balance sheets. It also provides information about these instruments which are subject to an enforceable master netting arrangement, irrespective of whether they are offset, and the extent to which the instruments could potentially be offset. Also shown is collateral received or pledged in the form of other financial instruments, which is generally cash or marketable securities. The collateral amounts in this table are limited to the outstanding balances of the related asset or liability (after netting is applied); thus amounts of excess collateral are not shown. Most of the derivatives in the following table were transacted under master netting arrangements that contain a conditional right of offset, such as close-out netting, upon default. While the Company is party to master netting arrangements with most of its swap counterparties, the Company does not offset derivative assets and liabilities under these arrangements on its consolidated balance sheets. Collateral exchanged between the Company and dealer bank counterparties is generally subject to thresholds and transfer minimums, and usually consist of marketable securities. By contract, this collateral may be sold or re-pledged by the secured party until recalled at a subsequent valuation date by the pledging party. For those swap transactions requiring central clearing, the Company posts cash or securities to its clearing agent. Collateral positions are valued daily, and adjustments to amounts received and pledged by the Company are made as appropriate to maintain proper collateralization for these transactions. Swap derivative transactions with customers are generally secured by rights to non-financial collateral, such as real and personal property, which is not shown in the table below.
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Resale and Repurchase Agreements |
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| Offsetting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Resale and Repurchase Agreements [Text Block] | Resale and Repurchase Agreements The Company regularly enters into resale and repurchase agreement transactions with other financial institutions and with its own customers. Resale and repurchase agreements are agreements to purchase/sell securities subject to an obligation to resell/repurchase the same or similar securities. They are accounted for as secured lending and collateralized borrowing (e.g. financing transactions), not as true sales and purchases of the underlying collateral securities. Some of the resale and repurchase agreements were transacted under master netting arrangements that contain a conditional right of offset, such as close-out netting, upon default. The security collateral accepted or pledged in resale and repurchase agreements with other financial institutions may be sold or re-pledged by the secured party, but is usually delivered to and held by third party trustees. The Company generally retains custody of securities pledged for repurchase agreements with its customers. Additional information about the Company's repurchase agreements is included in Note 8. The following table shows the extent to which resale agreement assets and repurchase agreement liabilities with the same counterparty have been offset on the consolidated balance sheets, in addition to the extent to which they could potentially be offset. Also shown is collateral received or pledged, which consists of marketable securities. The collateral amounts in the table are limited to the outstanding balances of the related asset or liability (after offsetting is applied); thus amounts of excess collateral are not shown.
The table below shows the remaining contractual maturities of repurchase agreements outstanding at December 31, 2025 and 2024, in addition to the various types of marketable securities that have been pledged by the Company as collateral for these borrowings.
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Commitments, Contingencies And Guarantees |
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| Commitments and Contingencies Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments, Contingencies And Guarantees | Commitments, Contingencies and Guarantees The Company engages in various transactions and commitments with off-balance sheet risk in the normal course of business to meet customer financing needs. The Company uses the same credit policies in making the commitments and conditional obligations described below as it does for on-balance sheet instruments. The following table summarizes these commitments at December 31:
Commitments to extend credit are legally binding agreements to lend to a borrower providing there are no violations of any conditions established in the contract. As many of the commitments are expected to expire without being drawn upon, the total commitment does not necessarily represent future cash requirements. Refer to Note 2 on Loans and Allowance for Credit Losses for further discussion. The Company, as a provider of financial services, routinely issues financial guarantees in the form of financial and performance standby letters of credit. Standby letters of credit are contingent commitments issued by the Company generally to guarantee the payment or performance obligation of a customer to a third party. While these represent a potential cash outflow by the Company, a significant amount of the commitments may expire without being drawn upon. To mitigate the potential loss exposure, the Company involves other financial institutions to participate in certain standby letters of credit. Even with such participation, the Company remains liable for the full amount of the standby letters of credit to the third party. The Company has recourse against the customer for any amount it is required to pay to a third party under a standby letter of credit. The standby letters of credit are subject to the same credit policies, underwriting standards and approval process as loans made by the Company. Most of the standby letters of credit are secured, and in the event of nonperformance by the customer, the Company has rights to the underlying collateral, which could include commercial real estate, physical plant and property, inventory, receivables, cash and marketable securities. At December 31, 2025, the Company had recorded a liability of $4.4 million, representing the carrying value of the guarantee obligations associated with the standby letters of credit. This amount will be accreted into income over the remaining life of the respective commitments. The contractual amount of these letters of credit, which represents the maximum potential future payments guaranteed by the Company, was $669.7 million at December 31, 2025. Commercial letters of credit act as a means of ensuring payment to a seller upon shipment of goods to a buyer. The majority of commercial letters of credit issued are used to settle payments in international trade. Typically, letters of credit require presentation of documents which describe the commercial transaction, evidence shipment, and transfer title. The Company regularly purchases various state tax credits arising from third-party property redevelopment. These tax credits are either resold to third parties for a profit or retained for use by the Company. During 2025, the Company purchased and sold state tax credits amounting to $179.4 million and $178.6 million, respectively. At December 31, 2025, the Company had outstanding purchase commitments totaling $165.2 million that it expects to fund in 2026. The remaining purchase commitments amount to $505.9 million and are projected to be funded from 2027 through 2035. The Company periodically enters into credit risk participation agreements (RPAs) as a guarantor to other financial institutions, in order to mitigate those institutions’ credit risk associated with interest rate swaps with third parties. The RPA stipulates that, in the event of default by the third party on the interest rate swap, the Company will reimburse a portion of the loss borne by the financial institution. These interest rate swaps are normally collateralized (generally with real property, inventories and equipment) by the third party, which limits the credit risk associated with the Company’s RPAs. The third parties usually have other borrowing relationships with the Company. The Company monitors overall borrower collateral, and at December 31, 2025, believes sufficient collateral is available to cover potential swap losses. The RPAs are carried at fair value throughout their term, with all changes in fair value, including those due to a change in the third party’s creditworthiness, recorded in current earnings. The terms of the RPAs, which correspond to the terms of the underlying swaps, range from 1 to 15 years. At December 31, 2025, the fair value of the Company's guarantee liability RPAs was $77 thousand, and the notional amount of the underlying swaps was $283.3 million. The maximum potential future payment guaranteed by the Company cannot be readily estimated and is dependent upon the fair value of the interest rate swaps at the time of default. The Company has various legal proceedings pending at December 31, 2025, arising in the normal course of business. While some matters pending against the Company specify damages claimed by plaintiffs, others do not seek a specified amount of damages or are at very early stages of the legal process. The Company records a loss accrual for all legal and regulatory matters for which it deems a loss is probable and can be reasonably estimated. Some matters, which are in the early stages, have not yet progressed to the point where a loss amount can be determined to be probable and estimable.
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Related Parties |
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Related Party Transactions [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Related Parties | Related Parties The Company's Chief Executive Officer, its Executive Chairman, and its former Vice Chairman are directors of Tower Properties Company (Tower) and, together with members of their immediate families, beneficially own approximately 76% of the outstanding stock of Tower. At December 31, 2025, Tower owned 284,092 shares of Company stock. Tower is primarily engaged in the business of owning, developing, leasing and managing real property. During the years ended 2024 and 2023, the Company maintained property services contracts with Tower Properties, under which Tower Properties provided property management services on three Company-owned office buildings and related parking garages in downtown Kansas City. The Company ended its property management services contract with Tower as of December 31, 2024.
Tower has a $13.5 million line of credit with the Bank which is subject to normal credit terms and had a variable interest rate. The line of credit is collateralized by Company stock and based on collateral value has a maximum borrowing amount of approximately $9.7 million at December 31, 2025. There were no borrowings under this line during 2025, 2024 or 2023, and no balance was outstanding at December 31, 2025, 2024 or 2023. There were no letters of credit outstanding during 2025, 2024 or 2023, and thus, no fees were received during these periods. From time to time, the Bank extended additional credit to Tower for construction and development projects. No construction loans were outstanding during 2025, 2024 and 2023. Tower leased office space in the Kansas City bank headquarters building owned by the Company during 2024 and 2023. Rent paid to the Company totaled $81 thousand in 2024 and $82 thousand in 2023, at $17.69 and $17.50 per square foot, for years 2024 and 2023, respectively. Tower was no longer a lessee of the Company as of January 1, 2025. Directors of the Company and their beneficial interests have deposit accounts with the Bank and may be provided with cash management and other banking services, including loans, in the ordinary course of business. Such loans were made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other unrelated persons and did not involve more than the normal risk of collectability. See Note 2 Loans and Allowance for Credit Losses for additional information for loans to directors and executive officers of the Company and the Bank, and to their affiliates.
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Parent Company Condensed Financial Statements |
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| Condensed Financial Information Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Parent Company Condensed Financial Statements | Parent Company Condensed Financial Statements Following are the condensed financial statements of Commerce Bancshares, Inc. (Parent only) for the periods indicated:
Dividends paid by the Parent to its shareholders were substantially provided from Bank dividends. The Bank may distribute common dividends without prior regulatory approval, provided that the dividends do not exceed the sum of net income for the current year and retained net income for the preceding two years, subject to maintenance of minimum capital requirements. The Parent charges fees to its subsidiaries for management services provided, which are allocated to the subsidiaries based on total assets and number of employees. The Parent makes cash advances to its private equity subsidiary for general short-term cash flow purposes. Advances may be made to the Parent by its subsidiary bank for temporary investment of idle funds. Interest on such advances is based on market rates. The Bank has $50.0 million of borrowings from the Parent as part of its strategy to manage FDIC insurance premiums. The note has a rolling 13 month maturity, and the interest rate is a variable rate equal to the one year treasury rate. For the past several years, the Parent has maintained a $20.0 million line of credit for general corporate purposes with the Bank. The Parent has not borrowed under this line during the past three years. The Parent has commitments to fund an additional $44.7 million relating to private equity investments over the next several years. The investments are made directly by the Parent and through non-bank subsidiaries. At December 31, 2025, the fair value of the investment securities held by the Parent consisted of investments of $941 thousand in corporate bonds, $4.6 million in common stock with readily determinable fair values, and $7.7 million in equity securities that do not have readily determinable fair values. The Parent's common stock investment of $4.6 million held at December 31, 2025 was entirely comprised of its holdings in FineMark Holdings, Inc. Those shares are no longer held after the Company's acquisition of FineMark in January 2026. The Parent also holds 411,723 shares of Visa Class B-2 common stock, which are discussed in Note 3. During 2024, the Parent sold Visa Class A common stock resulting in proceeds of $176.6 million, also discussed in Note 3.
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Subsequent Events |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Subsequent Events [Abstract] | |
| Subsequent Events | Subsequent Events On June 16, 2025, the Company and FineMark Holdings, Inc. ("FineMark") announced that it had entered into a definitive merger agreement in which the Company would acquire all outstanding shares of FineMark in an all-stock transaction ("Merger"). On January 1, 2026, the Company completed its acquisition FineMark, and immediately after the Merger, FineMark's wholly-owned subsidiary, FineMark National Bank & Trust merged into the Bank, with the Bank continuing as the surviving bank. Total consideration for the acquisition was $519.9 million, consisting of 9.9 million shares of the Company's common stock (valued at the acquisition-date fair value of $52.34 per share), plus cash in lieu of fractional shares. Prior to the acquisition date, the Company held a non-controlling equity interest in FineMark, and in accordance with ASC 805, this previously held interest was remeasured to its acquisition-date fair value of $4.6 million. The total acquisition-date fair value of the business combination was $524.5 million, comprised of the $519.9 million of consideration transferred and the $4.6 million fair value of the Company's previously held equity interest. Under the terms of the merger agreement, each outstanding FineMark common stock share was converted into .7245 shares of the Company's common stock, and each outstanding share of FineMark's preferred stock was converted into 36.3636 shares of FineMark common stock, prior to conversion into .7245 shares of the Company's common stock. Acquisition-related costs of $5.6 million for the year ending December 31, 2025 were recognized primarily in Professional and other services expense line of the Company's Consolidated Statements of Income. The acquisition of FineMark will be accounted for as a business combination using the purchase method of accounting in accordance with FASB ASC Topic 805, Business Combinations, which requires assets acquired and liabilities assumed to be recognized at fair value as of the acquisition date. The valuation of assets acquired and liabilities assumed has not yet been finalized. Any necessary adjustments from preliminary estimates will be finalized within one year from the date of acquisition. Measurement period adjustments will be recorded in the period in which they are determined, as if they had been completed at the acquisition date. Due to the timing of the acquisition, the Company has performed limited valuation procedures, and the valuation of all assets acquired and liabilities assumed is not yet complete.
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Insider Trading Arrangements |
3 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Trading Arrangements, by Individual | |
| Rule 10b5-1 Arrangement Adopted | false |
| Non-Rule 10b5-1 Arrangement Adopted | false |
| Rule 10b5-1 Arrangement Terminated | false |
| Non-Rule 10b5-1 Arrangement Terminated | false |
Insider Trading Policies and Procedures |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Insider Trading Policies and Procedures [Line Items] | |
| Insider Trading Policies and Procedures Adopted | true |
Cybersecurity Risk Management and Strategy Disclosure |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Cybersecurity Risk Management, Strategy, and Governance [Line Items] | |
| Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] | Cybersecurity Program and Management Oversight The Company has established an Information and Cybersecurity program integrated into its risk management process. The program is directed by the Company’s Information Security Strategy Board (“ISSB”). The purpose of the ISSB is to (i) provide management direction and support for information security risk oversight for the Company’s information security program and (ii) to engage Company leaders to promote information security risk awareness and sound information security risk management practices across the organization. The ISSB has been delegated authority from the Company’s Enterprise Risk Management Committee (“ERM Committee”) to advance and monitor the overall effectiveness of the Company’s information security program and risk management activities. The ISSB also has the authority to direct effective and timely implementation of actions to address emerging information security risks and information security risk management deficiencies. The ISSB meets at least quarterly. The ISSB is responsible for identifying, evaluating and monitoring information security risk across the Company. In order to fulfill this role, the ISSB engages in a variety of activities, including, but not limited to, the following: a.Review current status of the Company’s overall information security program. b.Review and monitor impacts, outcomes and remediation plans or mitigation activities related to internal and external security incidents, vulnerability scans or assessments. c.Review and monitor significant information security related projects and regulatory initiatives. d.Monitor metrics related to the Company’s information security program. e.Review and approve new, and modifications to existing, information security policies for which the ISSB has been designated approval authority by the ERM Committee. Existing information security policies are reviewed at least annually. f.Review information security examination reports and other significant communications from regulatory agencies and the status of any outstanding information security related regulatory findings. g.Monitor and discuss emerging industry information security risk issues including applicable frameworks, rules and regulations. h.Identify and analyze significant changes affecting information security risk management such as changes in the external environment, business model and leadership. i.Review new, expanded or modified software and applications that process, transmit, or store sensitive information to ensure appropriate information security risk management is embedded in the development and implementation processes. The ISSB is comprised of the following: a.Chief Information Security Officer – Chair b.Chief Information Officer c.Executive Director, Retail Banking Segment & Strategic Services d.Managing Counsel e.Director, Bank Operations f.Executive Director, Retail g.Chief Risk Officer h.Commerce Trust Chief Operating Officer i.Director, IT Division j.Director, Commercial LOB Products & Operations k.Director, Audit The Chief Information Security Officer (“CISO”) is responsible for the Company’s enterprise-wide Information and Cybersecurity Program. Responsibilities include the Information and Cybersecurity program, Security Architecture, Application Security, IT Risk Management, Operational Security, Security Consulting, Awareness and Training, Policies and Standards development, Incident Response and Information Security defense / mitigation strategy, strategic planning, and Vendor and Service Provider monitoring. The CISO has 25 years of experience with Information Security Program development, Application Security program development, IT Risk Management program development, Incident Response preparation, planning, and testing, Operational and Technical Security Architecture, and Creating Zero-Day defense strategies. The CISO is a Certified Information Systems Security Professional, is a member of the Information Systems Security Association and Infragard, and participates in local and national Security consortiums. CISO demonstrates expertise in Graham-Leach-Bliley Act, Health Insurance Portability and Accountability Act, Payment Card Industry, International Organization for Standardization 27001, National Institute of Standards and Technology, Open Worldwide Application Security Project, and other programs to provide strategic consulting across a variety of industry sectors. Governance The Company’s Board of Directors (the “Board”) is responsible for the oversight of all risk management activities, including cybersecurity risk. The Board has delegated that oversight responsibility to the Audit and Risk Committee. The Audit and Risk Committee has delegated the responsibility to advance and monitor the overall effectiveness of the Company’s risk management activities, including cybersecurity risk, to the ERM Committee. The ERM Committee also has the authority to direct effective and timely implementation of actions to address emerging cybersecurity risks. The ISSB provides quarterly reports to the Operational Risk Management Committee and ERM Committee. Through reports received from the ERM Committee, the Audit and Risk Committee notifies the Board of Directors about new policies and policy changes, changes in standards applied, and key risk metrics to evaluate ongoing cybersecurity threats and security risk exposure (the “Governance Model”). In addition, the ISSB provides a full report on the Company’s cybersecurity framework, risks, initiatives, and significant incidents to the Audit and Risk Committee or the Company’s Board of Directors not less than annually. Cybersecurity Risk Assessment Strategy, Policies and Standards The Company’s cybersecurity program is primarily structured based upon national and international security protocols and frameworks. The Company has implemented a strategy to address threats to Company assets. The Company’s Information Security program balances security risks with business goals and provides appropriate protections for the confidentiality, integrity and availability of Company and customer information. The Company conducts benchmark assessments of its Information Security program to evaluate its strength as measured against recommended industry security best practice entities. The Company has a process to prioritize and manage security related projects. The ISSB provides oversight of program changes, security awareness updates, exposures from new exploits, and risks to information, data and systems. Policies and standards are regularly reviewed within the Governance Model and presented to the Board. The Company utilizes a risk assessment approach to oversee and identify material risks from cyber threats, which includes information gathering, analysis, and prioritization of mitigation strategies. This approach was designed following security industry standard processes, models and guidelines. Risk assessments are a key component of the overall risk management process. The objectives of the risk assessment process are as follows: a.Provide assurance that management has implemented appropriate controls to mitigate risk. b.Identify applications, vendors, service providers, and/or business units that process, transmit, or store sensitive information. c.Comply with the various regulations addressing data security. d.Comply with the Company’s information security policies and standards. The scope of the risk assessment process includes but is not limited to the following asset types: a.Applications b.Business units c.Service providers d.Servers e.Databases f.Data centers g.Network infrastructure h.Security infrastructure i.Storage/recovery j.Mobile devices k.Workstations l.Authentication directory services m.Cloud The Company conducts detailed due diligence (as described below), contract reviews and ongoing monitoring of high-risk third-party service providers. Third-party service providers hosting an application or providing a service that processes, analyzes, transmits, stores, or reports the Company’s sensitive information must complete a control questionnaire. Vendors are subject to rigorous review of the vendor’s internal control policies, procedures, data security and contingency capabilities. Ongoing monitoring is also performed annually on selected service providers. The program requires service providers on the ongoing monitoring list to provide the Company with a third-party security penetration assessment, and other artifacts based on the type of information processed, transmitted, or stored, annually. The Company has also developed a comprehensive set of key risk metrics to evaluate ongoing cybersecurity threats and the security risk exposure. These metrics are used for threat trending, identifying attack vectors, and determining the effectiveness of controls. Key risk metrics are provided to management monthly and reported through the Governance Model to the Board. Security event monitoring and detection The Company formally tracks and reports on major identified risks and vulnerabilities and the results of their analysis and evaluation. These details can then be used to track and monitor their successful management as part of the activity to deliver the required, anticipated results. Security risks are categorized by Practice or Vulnerability (exploitable). The information is reported in the monthly security metrics report along with quarterly reporting to the ISSB. The Company actively monitors alerts and shared intelligence from a variety of industry-standard sources and takes appropriate actions when warranted. As new threats and vulnerabilities emerge that threaten its systems and data, the Company continues to evaluate and address these threats through a layered security approach. The Company engages cybersecurity assessors and consultants, including third party auditors, to perform annual penetration testing and risk assessments. These external parties provide validation of our processes and controls, ensuring they meet industry best practices and regulatory standards. The Company performs network and application penetration testing on external high-risk applications as well as network penetration testing across its production, test, and disaster recovery networks. The Company also performs tests on its operational defense and response to assess the ability to detect and respond to a threat actor. This allows the Company to test lateral movement, exploitation, data exfiltration, and evaluate its security posture around three primary security functions: detection, prevention, and response. The Company regularly participates in desktop exercises to help demonstrate incident preparedness and regulatory compliance. All testing results are reported to the Board quarterly through the Governance Model. Incident materiality The Commerce Bank Cybersecurity Incident Investigation and Response Plan is a component of the Information Security policy and sets forth the severity categories and processes required to assess the impact of a cyber-related incident to the Company. The impact is categorized in one of five severity levels and is expressed in terms of financial loss, strategic objectives, customer, legal and regulatory, reputation, and service interruption. The incident response plan includes timely notification of a material cybersecurity incident to the Board of Directors and other members of senior management. Like other financial institutions, the Company experiences malicious cyber activity on an ongoing basis directed at its websites, computer systems, software, networks and users. This malicious activity includes attempts at unauthorized access, implantation of computer viruses or malware, and denial of service attacks. The Company also experiences large volumes of phishing and other forms of social engineering attempted for the purpose of perpetrating fraud. While, to date, malicious cyber activity, cyberattacks and other information security breaches have not had a material adverse impact on the Company, risk to its systems remains significant. See Technology Risk "A successful cyber attack or other computer system breach could significantly harm the Company, its reputation and its customers" within Risk Factors Item 1a.
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| Cybersecurity Risk Management Processes Integrated [Flag] | true |
| Cybersecurity Risk Management Processes Integrated [Text Block] | The Company has established an Information and Cybersecurity program integrated into its risk management process. The program is directed by the Company’s Information Security Strategy Board (“ISSB”). The purpose of the ISSB is to (i) provide management direction and support for information security risk oversight for the Company’s information security program and (ii) to engage Company leaders to promote information security risk awareness and sound information security risk management practices across the organization. The ISSB has been delegated authority from the Company’s Enterprise Risk Management Committee (“ERM Committee”) to advance and monitor the overall effectiveness of the Company’s information security program and risk management activities. The ISSB also has the authority to direct effective and timely implementation of actions to address emerging information security risks and information security risk management deficiencies. The ISSB meets at least quarterly.
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| Cybersecurity Risk Management Third Party Engaged [Flag] | true |
| Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] | true |
| Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] | false |
| Cybersecurity Risk Board of Directors Oversight [Text Block] | The Company’s Board of Directors (the “Board”) is responsible for the oversight of all risk management activities, including cybersecurity risk. The Board has delegated that oversight responsibility to the Audit and Risk Committee. The Audit and Risk Committee has delegated the responsibility to advance and monitor the overall effectiveness of the Company’s risk management activities, including cybersecurity risk, to the ERM Committee. The ERM Committee also has the authority to direct effective and timely implementation of actions to address emerging cybersecurity risks. The ISSB provides quarterly reports to the Operational Risk Management Committee and ERM Committee. Through reports received from the ERM Committee, the Audit and Risk Committee notifies the Board of Directors about new policies and policy changes, changes in standards applied, and key risk metrics to evaluate ongoing cybersecurity threats and security risk exposure (the “Governance Model”). In addition, the ISSB provides a full report on the Company’s cybersecurity framework, risks, initiatives, and significant incidents to the Audit and Risk Committee or the Company’s Board of Directors not less than annually. |
| Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] | The Company’s Board of Directors (the “Board”) is responsible for the oversight of all risk management activities, including cybersecurity risk. The Board has delegated that oversight responsibility to the Audit and Risk Committee. |
| Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] | The ISSB provides quarterly reports to the Operational Risk Management Committee and ERM Committee. Through reports received from the ERM Committee, the Audit and Risk Committee notifies the Board of Directors about new policies and policy changes, changes in standards applied, and key risk metrics to evaluate ongoing cybersecurity threats and security risk exposure (the “Governance Model”). In addition, the ISSB provides a full report on the Company’s cybersecurity framework, risks, initiatives, and significant incidents to the Audit and Risk Committee or the Company’s Board of Directors not less than annually. |
| Cybersecurity Risk Role of Management [Text Block] | The ISSB is responsible for identifying, evaluating and monitoring information security risk across the Company. In order to fulfill this role, the ISSB engages in a variety of activities, including, but not limited to, the following: a.Review current status of the Company’s overall information security program. b.Review and monitor impacts, outcomes and remediation plans or mitigation activities related to internal and external security incidents, vulnerability scans or assessments. c.Review and monitor significant information security related projects and regulatory initiatives. d.Monitor metrics related to the Company’s information security program. e.Review and approve new, and modifications to existing, information security policies for which the ISSB has been designated approval authority by the ERM Committee. Existing information security policies are reviewed at least annually. f.Review information security examination reports and other significant communications from regulatory agencies and the status of any outstanding information security related regulatory findings. g.Monitor and discuss emerging industry information security risk issues including applicable frameworks, rules and regulations. h.Identify and analyze significant changes affecting information security risk management such as changes in the external environment, business model and leadership. i.Review new, expanded or modified software and applications that process, transmit, or store sensitive information to ensure appropriate information security risk management is embedded in the development and implementation processes. The ISSB is comprised of the following: a.Chief Information Security Officer – Chair b.Chief Information Officer c.Executive Director, Retail Banking Segment & Strategic Services d.Managing Counsel e.Director, Bank Operations f.Executive Director, Retail g.Chief Risk Officer h.Commerce Trust Chief Operating Officer i.Director, IT Division j.Director, Commercial LOB Products & Operations k.Director, Audit
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| Cybersecurity Risk Management Positions or Committees Responsible [Flag] | true |
| Cybersecurity Risk Management Positions or Committees Responsible [Text Block] | The Chief Information Security Officer (“CISO”) is responsible for the Company’s enterprise-wide Information and Cybersecurity Program. |
| Cybersecurity Risk Management Expertise of Management Responsible [Text Block] | The Chief Information Security Officer (“CISO”) is responsible for the Company’s enterprise-wide Information and Cybersecurity Program. Responsibilities include the Information and Cybersecurity program, Security Architecture, Application Security, IT Risk Management, Operational Security, Security Consulting, Awareness and Training, Policies and Standards development, Incident Response and Information Security defense / mitigation strategy, strategic planning, and Vendor and Service Provider monitoring. The CISO has 25 years of experience with Information Security Program development, Application Security program development, IT Risk Management program development, Incident Response preparation, planning, and testing, Operational and Technical Security Architecture, and Creating Zero-Day defense strategies. The CISO is a Certified Information Systems Security Professional, is a member of the Information Systems Security Association and Infragard, and participates in local and national Security consortiums. CISO demonstrates expertise in Graham-Leach-Bliley Act, Health Insurance Portability and Accountability Act, Payment Card Industry, International Organization for Standardization 27001, National Institute of Standards and Technology, Open Worldwide Application Security Project, and other programs to provide strategic consulting across a variety of industry sectors.
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| Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] | Through reports received from the ERM Committee, the Audit and Risk Committee notifies the Board of Directors about new policies and policy changes, changes in standards applied, and key risk metrics to evaluate ongoing cybersecurity threats and security risk exposure (the “Governance Model”). In addition, the ISSB provides a full report on the Company’s cybersecurity framework, risks, initiatives, and significant incidents to the Audit and Risk Committee or the Company’s Board of Directors not less than annually. Cybersecurity Risk Assessment Strategy, Policies and Standards The Company’s cybersecurity program is primarily structured based upon national and international security protocols and frameworks. The Company has implemented a strategy to address threats to Company assets. The Company’s Information Security program balances security risks with business goals and provides appropriate protections for the confidentiality, integrity and availability of Company and customer information. The Company conducts benchmark assessments of its Information Security program to evaluate its strength as measured against recommended industry security best practice entities. The Company has a process to prioritize and manage security related projects. The ISSB provides oversight of program changes, security awareness updates, exposures from new exploits, and risks to information, data and systems. Policies and standards are regularly reviewed within the Governance Model and presented to the Board. The Company utilizes a risk assessment approach to oversee and identify material risks from cyber threats, which includes information gathering, analysis, and prioritization of mitigation strategies. This approach was designed following security industry standard processes, models and guidelines. Risk assessments are a key component of the overall risk management process. The objectives of the risk assessment process are as follows: a.Provide assurance that management has implemented appropriate controls to mitigate risk. b.Identify applications, vendors, service providers, and/or business units that process, transmit, or store sensitive information. c.Comply with the various regulations addressing data security. d.Comply with the Company’s information security policies and standards. The scope of the risk assessment process includes but is not limited to the following asset types: a.Applications b.Business units c.Service providers d.Servers e.Databases f.Data centers g.Network infrastructure h.Security infrastructure i.Storage/recovery j.Mobile devices k.Workstations l.Authentication directory services m.Cloud The Company conducts detailed due diligence (as described below), contract reviews and ongoing monitoring of high-risk third-party service providers. Third-party service providers hosting an application or providing a service that processes, analyzes, transmits, stores, or reports the Company’s sensitive information must complete a control questionnaire. Vendors are subject to rigorous review of the vendor’s internal control policies, procedures, data security and contingency capabilities. Ongoing monitoring is also performed annually on selected service providers. The program requires service providers on the ongoing monitoring list to provide the Company with a third-party security penetration assessment, and other artifacts based on the type of information processed, transmitted, or stored, annually. The Company has also developed a comprehensive set of key risk metrics to evaluate ongoing cybersecurity threats and the security risk exposure. These metrics are used for threat trending, identifying attack vectors, and determining the effectiveness of controls. Key risk metrics are provided to management monthly and reported through the Governance Model to the Board. Security event monitoring and detection The Company formally tracks and reports on major identified risks and vulnerabilities and the results of their analysis and evaluation. These details can then be used to track and monitor their successful management as part of the activity to deliver the required, anticipated results. Security risks are categorized by Practice or Vulnerability (exploitable). The information is reported in the monthly security metrics report along with quarterly reporting to the ISSB. The Company actively monitors alerts and shared intelligence from a variety of industry-standard sources and takes appropriate actions when warranted. As new threats and vulnerabilities emerge that threaten its systems and data, the Company continues to evaluate and address these threats through a layered security approach. The Company engages cybersecurity assessors and consultants, including third party auditors, to perform annual penetration testing and risk assessments. These external parties provide validation of our processes and controls, ensuring they meet industry best practices and regulatory standards. The Company performs network and application penetration testing on external high-risk applications as well as network penetration testing across its production, test, and disaster recovery networks. The Company also performs tests on its operational defense and response to assess the ability to detect and respond to a threat actor. This allows the Company to test lateral movement, exploitation, data exfiltration, and evaluate its security posture around three primary security functions: detection, prevention, and response. The Company regularly participates in desktop exercises to help demonstrate incident preparedness and regulatory compliance. All testing results are reported to the Board quarterly through the Governance Model.
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| Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] | true |
Summary of Significant Accounting Policies (Policy) |
12 Months Ended |
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Dec. 31, 2025 | |
| Accounting Policies [Abstract] | |
| Nature Of Operations | Nature of Operations Commerce Bancshares, Inc. and its subsidiaries (the Company) conducts its principal activities from approximately 236 branch and ATM locations, primarily throughout Missouri, Kansas, Illinois, Oklahoma and Colorado. Principal activities include retail and commercial banking, investment management, securities brokerage, mortgage banking, trust, and private banking services. The Company also maintains offices in Dallas, Houston, Cincinnati, Nashville, Des Moines, Indianapolis, and Grand Rapids that support customers in its commercial and/or wealth segments and operates a commercial payments business with sales representatives covering the continental U.S.
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| Basis Of Presentation | Basis of Presentation, Use of Estimates, and Subsequent Events The consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries. All material inter-company transactions have been eliminated through consolidation. Certain prior year amounts have been reclassified to conform to the current year presentation. Such reclassifications had no effect on net income or total assets. The Company follows accounting principles generally accepted in the United States of America (GAAP) and reporting practices applicable to the banking industry. The preparation of financial statements under GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and notes. These estimates are based on information available to management at the time the estimates are made. While the consolidated financial statements reflect management’s best estimates and judgments, actual results could differ from those estimates. Management has evaluated subsequent events for potential recognition or disclosure through the date these consolidated financial statements were issued. The Company, in the normal course of business, engages in a variety of activities that involve variable interest entities (VIEs). A VIE is a legal entity that lacks equity investors or whose equity investors do not have a controlling financial interest in the entity through their equity investments. However, an enterprise is deemed to have a controlling financial interest and is the primary beneficiary of a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. An enterprise that is the primary beneficiary must consolidate the VIE. The Company’s interests in VIEs are evaluated to determine if the Company is the primary beneficiary both at inception and when there is a change in circumstances that requires a reconsideration. The Company is considered to be the primary beneficiary in a rabbi trust related to a deferred compensation plan offered to certain employees. The assets and liabilities of this trust, which are included in the accompanying consolidated balance sheets, are not significant. The Company also has variable interests in certain entities in which it is not the primary beneficiary. These entities are not consolidated. These interests include certain investments in entities accounted for using the equity method of accounting, as well as affordable housing limited partnership interests, holdings in its investment portfolio of various asset and mortgage-backed bonds that are issued by securitization trusts, and managed discretionary trust assets that are not included in the accompanying consolidated balance sheets.
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| Cash, Cash Equivalents and Restricted Cash | Cash, Cash Equivalents and Restricted Cash In the accompanying consolidated statements of cash flows, cash and cash equivalents include “Cash and due from banks”, “Federal funds sold", "Securities purchased under agreements to resell”, and “Interest earning deposits with banks” as segregated in the accompanying consolidated balance sheets. Restricted cash is comprised of cash collateral on deposit with another financial institution to secure interest rate swap transactions. Restricted cash is included in other assets in the consolidated balance sheets and totaled $83 thousand and $82 thousand at December 31, 2025 and 2024, respectively. During 2020, the Federal Reserve System, which historically required the Bank to maintain cash balances at the Federal Reserve Bank, reduced the reserve requirement ratios to zero percent effective March 26, 2020. Other interest earning cash balances held at the Federal Reserve Bank totaled $2.7 billion at December 31, 2025.
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| Loans And Related Earnings | Loans and Related Earnings The Company's portfolio of held-for-investment loans includes a net investment in direct financing and sales type leases to commercial and industrial and tax-exempt entities, and collectively, the Company's portfolio of loans and leases is referred to as its "loan portfolio" or "loans". Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off are reported at amortized cost, excluding accrued interest receivable. Amortized cost is the outstanding principal balance, net of any deferred fees and costs on originated loans. Origination fee income received on loans and amounts representing the estimated direct costs of origination are deferred and amortized to interest income over the life of the loan using the interest method. Interest on loans is accrued based upon the principal amount outstanding. The Company has elected the practical expedient to exclude all accrued interest receivable from all required disclosures of amortized cost. Additionally, an election was made not to measure an allowance for credit losses for accrued interest receivables. The Company has also made the election that all interest accrued but ultimately not received is reversed against interest income. Loan and commitment fees, net of costs, are deferred and recognized in interest income over the term of the loan or commitment as an adjustment of yield. Annual fees charged on credit card loans are capitalized to principal and amortized over 12 months to loan fees and sales. Other credit card fees, such as cash advance fees and late payment fees, are recognized in income as an adjustment of yield when charged to the cardholder’s account.
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| Loans and Leases Receivable, Nonperforming Loan and Lease, Policy | Past Due Loans Management reports loans as past due on the day following the contractual repayment date if payment was not received by end of the business day. Loans, or portions of loans, are charged off to the extent deemed uncollectible. Loan charge-offs reduce the allowance for credit losses on loans, and recoveries of loans previously charged off are added back to the allowance. Business, business real estate, construction and land real estate, and personal real estate loans are generally charged down to estimated collectible balances when they are placed on non-accrual status. Consumer loans and related accrued interest are normally charged down to the fair value of related collateral (or are charged off in full if not collateralized) once the loans are more than 120 to 180 days delinquent, depending on the type of loan. Revolving home equity loans are charged down to the fair value of the related collateral once the loans are more than 180 days past due. Credit card loans are charged off against the allowance for credit losses when the receivable is more than 180 days past due.
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| Loans and Leases Receivable Non Accrual Loans | Non-Accrual Loans Loans are placed on non-accrual status when management does not expect to collect payments consistent with acceptable and agreed upon terms of repayment. Business, construction real estate, business real estate, and individually significant personal real estate and consumer loans that are contractually 90 days past due as to principal and/or interest payments are generally placed on non-accrual status, unless they are both well-secured and in the process of collection. Personal real estate, consumer, revolving home equity and credit card loans are generally exempt under regulatory rules from being classified as non-accrual. When a loan is placed on non-accrual status, any interest previously accrued but not collected is reversed against current interest income, and the loan is charged off to the extent uncollectible. Principal and interest payments received on non-accrual loans are generally applied to principal. Interest is included in income only after all previous loan charge-offs have been recovered and is recorded only as received. The loan is returned to accrual status only when the borrower has brought all past due principal and interest payments current, and, in the opinion of management, the borrower has demonstrated the ability to make future payments of principal and interest as scheduled. A six month history of sustained payment performance is generally required before reinstatement of accrual status.
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| Modification for Borrowers Experiencing Financial Difficulty | Modifications for Borrowers Experiencing Financial Difficulty The Company may renegotiate the terms of existing loans for a variety of reasons. When refinancing or restructuring a loan, the Company evaluates whether the borrower is experiencing financial difficulty. In making this determination, the Company considers whether the borrower is currently in default on any of its debt. In addition, the Company evaluates whether it is probable that the borrower would be in payment default on any of its debt in the foreseeable future without the modification and if the borrower (without the current modification) could obtain equivalent financing from another creditor at a market rate for similar debt. Modifications of loans to borrowers in these situations may indicate that the borrower is facing financial difficulty.
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| Loans Held For Sale | Loans Held For Sale Historically, loans held for sale included student loans and certain fixed rate residential mortgage loans. These loans are typically classified as held for sale upon origination based upon management's intent to sell the production of these loans. During 2024, the Company sold its remaining portfolio of student loans. When offered, the student loans were carried at the lower of aggregate cost or fair value, and their fair value was determined based on sale contract prices. The mortgage loans are carried at fair value under the elected fair value option. Their fair value is based on secondary market prices for loans with similar characteristics, including an adjustment for embedded servicing value. Changes in fair value and gains and losses on sales are included in loan fees and sales. Deferred fees and costs related to these loans are not amortized but are recognized as part of the cost basis of the loan at the time it is sold. Interest income related to loans held for sale is accrued based on the principal amount outstanding and the loan's contractual interest rate. Occasionally, other types of loans may be classified as held for sale in order to manage credit concentration. These loans are carried at the lower of cost or fair value with gains and losses on sales recognized in loan fees and sales.
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| Allowance for Credit Losses | Allowance for Credit Losses on Loans The allowance for credit losses on loans is a valuation amount that is deducted from the amortized cost basis of loans not held at fair value to present the net amount expected to be collected over the contractual term of the loans. The allowance for credit losses on loans is measured using relevant information about past events, including historical credit loss experience on loans with similar risk characteristics, current conditions, and reasonable and supportable forecasts that affect the collectability of the remaining cash flows over the contractual term of the loans. An allowance will be created upon origination or acquisition of a loan and is updated at subsequent reporting dates. The methodology is applied consistently for each reporting period and reflects management’s current expectations of credit losses. Changes to the allowance for credit losses on loans resulting from periodic evaluations are recorded through increases or decreases to the credit loss expense for loans, which is recorded in provision for credit losses on the consolidated statements of income. Loans that are deemed to be uncollectible are charged off against the related allowance for credit losses on loans. The allowance for credit losses on loans is measured on a collective (pool) basis. Loans are aggregated into pools based on similar risk characteristics including borrower type, collateral type and expected credit loss patterns. Loans that do not share similar risk characteristics, primarily large loans on non-accrual status, are evaluated on an individual basis. The allowance related to these large non-accrual loans is generally measured using the fair value of the collateral (less selling cost, if applicable) as most of these loans are collateral dependent and the borrower is facing financial difficulty. As noted above, the allowance for credit losses on loans does not include an allowance for accrued interest.
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| Off-Balance-Sheet Credit Exposure, Policy | Liability for Unfunded Lending Commitments The Company’s unfunded lending commitments are primarily unfunded loan commitments and letters of credit. Expected credit losses for these unfunded lending commitments are calculated over the contractual period during which the Company is exposed to the credit risk. The methodology used to measure credit losses for unfunded lending commitments is the same as the methodology used for loans, however, the estimate of credit risk for unfunded lending commitments takes into consideration the likelihood that funding will occur. The liability for unfunded lending commitments excludes any exposures that are unconditionally cancellable by the Company. The loss estimate is recorded within other liabilities on the consolidated balance sheet. Changes to the liability for unfunded lending commitments are recorded through increases or decreases to the provision for credit losses on the consolidated statements of income.
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| Direct Financing And Sales Type Leases | Direct Financing and Sales Type Leases The net investment in direct financing and sales type leases is included in loans on the Company’s consolidated balance sheets and consists of the present values of the sum of the future minimum lease payments and estimated residual value of the leased asset. Revenue consists of interest earned on the net investment and is recognized over the lease term as a constant percentage return thereon.
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| Investments In Debt And Equity Securities | Investments in Debt and Equity Securities The majority of the Company's investment portfolio is comprised of debt securities that are classified as available for sale. From time to time, the Company sells securities and utilizes the proceeds to reduce borrowings, fund loan growth, or modify its interest rate profile. Securities classified as available for sale are carried at fair value. Changes in fair value are reported in other comprehensive income (loss), a component of shareholders' equity. Securities are periodically evaluated for credit losses in accordance with the guidance provided in Accounting Standards Codification (ASC) 326. Further discussion of this evaluation is provided in "Allowance for Credit Losses on Available for Sale Debt Securities" below. Gains and losses realized upon sales of securities are calculated using the specific identification method and are included in investment securities gains (losses), net, in the consolidated statements of income. Purchase premiums and discounts are amortized to interest income using a level yield method over the estimated lives of the securities. For certain callable debt securities purchased at a premium, the amortization is recorded to the earliest call date. For mortgage and asset-backed securities, prepayment experience is evaluated quarterly to determine if a change in a bond's estimated remaining life is necessary. A corresponding adjustment is then made in the related amortization of premium or discount accretion. Accrued interest receivable on available for sale debt securities is reported in other assets on the consolidated balance sheet. The Company has elected the practical expedient to exclude the accrued interest from all required disclosures of amortized cost of debt securities. Additionally, an election was made not to measure an allowance for credit losses for accrued interest receivables. Interest accrued but not received is reversed against interest income. Equity securities include common and preferred stock and are carried at fair value. Certain equity securities do not have readily determinable fair values. The Company has elected to measure these equity securities without a readily determinable fair value at cost minus impairment, if any, plus or minus changes resulting from observable price changes for the identical or similar investment of the same issuer. The Company has not recorded any impairment or other adjustments to the carrying amount of these equity securities without readily determinable fair values. Other securities include the Company's investments in Federal Reserve Bank stock and Federal Home Loan Bank stock, equity method investments, and private equity investments. Federal Reserve Bank stock and Federal Home Loan Bank stock are held for debt and regulatory purposes, are carried at cost and are periodically evaluated for impairment. The Company's equity method investments are carried at cost, adjusted to reflect the Company's portion of income, loss, or dividends of the investee. The Company's private equity investments in portfolio concerns, consisting of both debt and equity instruments, are held by the Company’s private equity subsidiary, which is a small business investment company licensed by the Small Business Administration. The Company's private equity investments are carried at fair value in accordance with investment company accounting guidance (ASC 946-10-15), with changes in fair value reported in current income. In the absence of readily ascertainable market values, fair value is estimated using internally developed methods. Changes in fair value which are recognized in current income and gains and losses from sales are included in investment securities gains (losses), net, in the consolidated statements of income. Trading account securities, which are debt securities bought and held principally for the purpose of resale in the near term, are carried at fair value. Gains and losses, both realized and unrealized, are recorded in non-interest income. Purchases and sales of securities are recognized on a trade date basis. A receivable or payable is recognized for transaction pending settlements.
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| Credit Loss, Financial Instrument | Allowance for Credit Losses on Available for Sale Debt Securities For available for sale debt securities in an unrealized loss position, the entire loss in fair value is required to be recognized in current earnings if the Company intends to sell the securities or believes it more likely than not that it will be required to sell the security before the anticipated recovery. If neither condition is met, and the Company does not expect to recover the amortized cost basis, the Company determines whether the decline in fair value resulted from credit losses or other factors. If the assessment indicates that a credit loss exists, the present value of cash flows expected to be collected is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss has occurred, and an allowance for credit losses is recorded. The allowance for credit losses is limited by the amount that the fair value is less than the amortized cost basis. Any impairment not recorded through the provision for credit losses is recognized in other comprehensive income. Changes in the allowance for credit losses are recorded as a provision for (or reversal of) credit losses on the consolidated statements of income. Losses are charged against the allowance for credit losses on securities when management believes the uncollectibility of an available for sale security is confirmed or when either of the conditions regarding intent or requirement to sell is met. Accrued interest receivable on available for sale debt securities is excluded from the estimate of credit losses.
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| Securities Purchased Under Agreements To Resell And Securities Sold Under Agreements To Repurchase | Securities Purchased under Agreements to Resell and Securities Sold under Agreements to Repurchase Securities purchased under agreements to resell and securities sold under agreements to repurchase are treated as collateralized financing transactions, not as purchases and sales of the underlying securities. The agreements are recorded at the amount of cash advanced or received. The Company periodically enters into securities purchased under agreements to resell with large financial institutions. Securities pledged by the counterparties to secure these agreements are delivered to a third party custodian. Securities sold under agreements to repurchase are a source of funding to the Company and are offered to cash management customers as an automated, collateralized investment account. From time to time, securities sold may also be used by the Bank to obtain additional borrowed funds at favorable rates. These borrowings are secured by a portion of the Company's investment security portfolio and delivered either to the dealer custody account at the Federal Reserve Bank or to the applicable counterparty. The fair value of collateral either received from or provided to a counterparty is monitored daily, and additional collateral is obtained, returned, or provided by the Company in order to maintain full collateralization for these transactions. As permitted by current accounting guidance, the Company offsets certain securities purchased under agreements to resell against securities sold under agreements to repurchase in its balance sheet presentation. These agreements are further discussed in Note 20, Resale and Repurchase Agreements.
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| Premises and Equipment | Premises and Equipment Land is stated at cost, and buildings and equipment are stated at cost, including capitalized interest when appropriate, less accumulated depreciation. Depreciation is computed using a straight-line method, utilizing estimated useful lives; generally 30 to 40 years for buildings, 10 years for building improvements, and 3 to 10 years for equipment. Leasehold improvements are amortized over the shorter of 10 years or the remaining lease term. Maintenance and repairs are charged to non-interest expense as incurred. Also included in premises and equipment is construction in process, which represents facilities construction projects underway that have not yet been placed into service, as well as the Company's right-of-use leased assets, which are mainly comprised of operating leases for branches, office space, ATM locations, and certain equipment.
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| Foreclosed Assets | Foreclosed Assets Foreclosed assets consist of property that has been repossessed and is comprised of commercial and residential real estate and other non-real estate property, including auto and recreational and marine vehicles. The assets are initially recorded at fair value less estimated selling costs, establishing a new cost basis. Initial valuation adjustments are charged to the allowance for credit losses. Fair values are estimated primarily based on appraisals, third-party price opinions, or internally developed pricing models. After initial recognition, fair value estimates are updated periodically. Declines in fair value below cost are recognized through valuation allowances which may be reversed when supported by future increases in fair value. These valuation adjustments, in addition to gains and losses realized on sales and net operating expenses, are recorded in other non-interest expense. Foreclosed assets are included in other assets on the consolidated balance sheets.
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| Goodwill and Intangible Assets | Goodwill and Intangible Assets Goodwill and intangible assets that have indefinite useful lives, such as property easement intangible assets, are not amortized but are assessed for impairment on an annual basis or more frequently in certain circumstances. When testing for goodwill impairment, the Company may initially perform a qualitative assessment. Based on the results of this qualitative assessment, if the Company concludes it is more likely than not that a reporting unit's fair value is less than its carrying amount, a quantitative analysis is performed. Quantitative valuation methodologies include a combination of formulas using current market multiples, based on recent sales of financial institutions within the Company's geographic marketplace. If the fair value of a reporting unit is less than the carrying amount, an impairment has occurred and is measured as the amount by which the carrying amount exceeds the reporting unit's fair value. The Company has not recorded impairment resulting from goodwill impairment tests. However, adverse changes in the economic environment, operations of the reporting unit, or other factors could result in a decline in fair value. Intangible assets that have finite useful lives, such as core deposit intangibles and mortgage servicing rights, are amortized over their estimated useful lives. Mortgage servicing rights are amortized in proportion to and over the period of estimated net servicing income, considering appropriate prepayment assumptions. Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate their carrying amount may not be recoverable. Impairment is indicated if the sum of the undiscounted estimated future net cash flows is less than the carrying value of the intangible asset. Mortgage servicing rights, while initially recorded at fair value, are subsequently amortized and carried at the lower of the initial capitalized amount (net of accumulated amortization), or estimated fair value. The Company evaluates its mortgage servicing rights for impairment on a quarterly basis, using estimated prepayment speeds of the underlying mortgage loans serviced and stratification based on the risk characteristics of the underlying loans. A valuation allowance has been established, through a charge to earnings, to the extent the amortized cost exceeds the estimated fair value. However, the Company has not recorded other-than-temporary impairment losses on its intangible assets.
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| Income Taxes | Income Taxes Amounts provided for income tax expense are based on income reported for financial statement purposes and do not necessarily represent amounts currently payable under tax laws. Deferred income taxes are provided for temporary differences between the financial reporting bases and income tax bases of the Company’s assets and liabilities, net operating losses, and tax credit carryforwards. Deferred tax assets and liabilities are measured using the enacted tax rates that are expected to apply to taxable income when such assets and liabilities are anticipated to be settled or realized. The effect on deferred tax assets and liabilities of a change in tax rates is recognized as tax expense or benefit in the period that includes the enactment date of the change. In determining the amount of deferred tax assets to recognize in the financial statements, the Company evaluates the likelihood of realizing such benefits in future periods. A valuation allowance is established if it is more likely than not that all or some portion of the deferred tax asset will not be realized. The Company recognizes interest and penalties related to income taxes within income tax expense in the consolidated statements of income. The Company and its eligible subsidiaries file a consolidated federal income tax return. State and local income tax returns are filed on a combined, consolidated or separate return basis based upon each jurisdiction’s laws and regulations. The Company adopted ASU 2023-09 “Income Taxes (Topic 740) – Improvements to Income Tax Disclosures” for the year ended December 31, 2025. The amendments required additional disclosures regarding the rate reconciliation and income taxes paid and adoption did not have a material impact on the Company’s financial statements. The Company adopted this Update on a retrospective basis. Additional information about current and deferred income taxes is provided in Note 9, Income Taxes.
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| Non-Interest Income | Non-Interest Income Non-interest income is mainly comprised of revenue from contracts with customers. For that revenue (excluding certain revenue associated with financial instruments, derivative and hedging instruments, guarantees, lease contracts, transferring and servicing of financial assets, and other specific revenue transactions), the Company applies the following five-step approach when recognizing revenue: (i) identify the contract with the customer, (ii) identify the performance obligations, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations, and (v) recognize revenue when (or as) the performance obligation is satisfied. The Company’s contracts with customers are generally short term in nature, with a duration of one year or less, and most contracts are cancellable by either the Company or its customer without penalty. Performance obligations for customer contracts are generally satisfied at a single point in time, typically when the transaction is complete and the customer has received the goods or service, or over time. For performance obligations satisfied over time, the Company recognizes the value of the goods or services transferred to the customer when the performance obligations have been transferred and received by the customer. Payments for satisfied performance obligations are typically due when or as the goods or services are completed, or shortly thereafter, which usually occurs within a single financial reporting period. In situations where payment is made before the performance obligation is satisfied, the fees are deferred until the performance obligations pertaining to those goods or services are completed. In cases where payment has not been received despite satisfaction of its performance obligations, the Company accrues an estimate of the amount due in the period that the performance obligations have been satisfied. For contracts with variable components, the Company only recognizes revenue to the extent that it is probable that the cumulative amount recognized will not be subject to a significant reversal in future periods. Generally, the Company’s contracts do not include terms that require significant judgment to determine whether a variable component is included within the transaction price. The Company generally acts in a principal capacity, on its own behalf, in most of its contracts with customers. For these transactions, revenue and the related costs to provide the goods or services are presented on a gross basis in the financial statements. In some cases, the Company acts in an agent capacity, deriving revenue through assisting third parties in transactions with the Company’s customers. In such transactions, revenue and the related costs to provide services is presented on a net basis in the financial statements. These transactions primarily relate to fees earned from bank card and related network and rewards costs and beginning in August 2023, commissions on sales of consumer brokerage transactions and products.
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| Derivatives | Derivatives The Company's derivative contracts are carried at fair value, and changes in fair value are recognized in current earnings. They include interest rate swaps and caps, which are offered to customers to assist in managing their risks of adverse changes in interest rates. Each contract between the Company and a customer is offset by a contract between the Company and an institutional counterparty, thus minimizing the Company's exposure to rate changes. The Company also enters into certain contracts, known as credit risk participation agreements, to buy or sell credit protection on specific interest rate swaps. It also purchases and sells forward foreign exchange contracts, either in connection with customer transactions, or for its own trading purposes. Additionally, the Company originates and sells certain personal real estate mortgages. Derivative instruments under this program include mortgage loan commitments, forward loan sale contracts, and forward contracts to sell certain to-be-announced (TBA) securities. The Company's interest rate risk management policy permits the use of hedge accounting for derivatives, and the Company has entered into interest rate floor contracts as protection from the potential for declining interest rates in the commercial loan portfolio. These floors were designated and qualified as cash flow hedges. In a cash flow hedge, the changes in fair value are recorded in accumulated other comprehensive income and recognized in the income statement when the hedged cash flows affect earnings. Both at hedge inception and on an ongoing basis, the Company assesses whether the interest rate floors used in the hedging relationships are highly effective in offsetting changes in the cash flows of the hedged items. From time to time, the Company has monetized its interest rate floors that had previously been designated and qualified as cash flow hedges. In such case, the monetized cash flow hedge is derecognized and the amounts recorded in accumulated other comprehensive income (AOCI) remain in AOCI until the underlying forecasted transaction impacts earnings, unless the forecasted transaction becomes probable of not occurring. The Company has master netting arrangements with various counterparties but does not offset derivative assets and liabilities under these arrangements in its consolidated balance sheets. However, interest rate swaps that are executed under central clearing requirements are presented net of variation margin as mandated by the statutory terms of the Company's contract with its clearing counterparty. Additional information about derivatives held by the Company and valuation methods employed is provided in Note 17, Fair Value Measurements and Note 19, Derivative Instruments. Cash flows associated with derivative instruments and their related gains and losses are presented in the consolidated statement of cash flows as operating activities.
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| Pension Plan | Pension Plan The Company’s pension plan is described in Note 10, Employee Benefit Plans. In accordance with ASU 2017-07, the Company has reported the service cost component of net periodic pension cost in salaries and employee benefits in the accompanying consolidated statements of income, while the other components are reported in other non-interest expense. The funded status of the plan is recognized as an other asset or other liability in the consolidated balance sheets, and changes in that funded status are recognized in the year in which the changes occur through other comprehensive income. Plan assets and benefit obligations are measured as of the fiscal year end of the plan. The measurement of the projected benefit obligation and pension expense involve actuarial valuation methods and the use of various actuarial and economic assumptions. The Company monitors the assumptions and updates them periodically. Due to the long-term nature of the pension plan obligation, actual results may differ significantly from estimations. Such differences are adjusted over time as the assumptions are replaced by facts and values are recalculated.
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| Stock-Based Compensation | Stock-Based Compensation The Company’s stock-based compensation plan is described in Note 11, Stock-Based Compensation and Directors Stock Purchase Plan. In accordance with the requirements of ASC 718-10-30-3 and 35-2, the Company measures the cost of stock-based compensation based on the grant-date fair value of the award, recognizing the cost over the requisite service period, which is generally the vesting period. The fair value of stock appreciation rights is estimated using the Black-Scholes option-pricing model while the fair value of a nonvested stock award is the common stock (CBSH) market price. The expense recognized for stock-based compensation is included in salaries and benefits in the accompanying consolidated statements of income. The Company recognizes forfeitures as a reduction to expense only when they have occurred.
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| Treasury Stock | Treasury Stock Purchases of the Company’s common stock are recorded at cost. Upon re-issuance for acquisitions, exercises of stock-based awards or other corporate purposes, treasury stock is reduced based upon the average cost basis of shares held.
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| Income Per Share | Income per Share Basic income per share is computed using the weighted average number of common shares outstanding during each year. Diluted income per share includes the effect of all dilutive potential common shares (primarily stock appreciation rights) outstanding during each year. The Company applies the two-class method of computing income per share. The two-class method is an earnings allocation formula that determines income per share for common stock and for participating securities, according to dividends declared and participation rights in undistributed earnings. The Company’s nonvested stock awards are considered to be a class of participating security. All per share data has been restated to reflect the 5% stock dividend distributed in December 2025.
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Loans And Allowance For Credit Losses (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Loans And Allowance For Credit Losses [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary Classification Of Held To Maturity Loan Portfolio | Major classifications within the Company’s held for investment loan portfolio at December 31, 2025 and 2024 are as follows:
(1) Accrued interest receivable totaled $74.4 million and $70.6 million at December 31, 2025 and 2024, respectively, and was included within other assets on the consolidated balance sheets. For the year ended December 31, 2025, the Company wrote-off accrued interest by reversing interest income of $315 thousand and $6.3 million in the Commercial and Personal Banking portfolios, respectively. For the year ended December 31, 2024, the Company wrote-off accrued interest by reversing interest income of $548 thousand and $6.1 million in the Commercial and Personal Banking portfolios, respectively.
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| Loans To Directors And Executive Officers | Loans to directors and executive officers of the Parent and the Bank, and to their affiliates, are summarized as follows:
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| CECL Model Inputs | Key assumptions in the Company’s allowance for credit loss model include the economic forecast, the reasonable and supportable period, forecasted macro-economic variables, prepayment assumptions and qualitative factors applied for portfolio composition changes, underwriting practices, or significant unique events or conditions. The assumptions utilized in estimating the Company’s allowance for credit losses at December 31, 2025 and 2024 are discussed below.
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| Summary Of Activity In The Allowance For Credit Losses | A summary of the activity in the allowance for credit losses on loans and the liability for unfunded lending commitments during the years ended December 31, 2025 and 2024 follows:
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| Aging Information On Past Due And Nonaccrual Loans | The following table provides aging information on the Company’s past due and accruing loans, in addition to the balances of loans on non-accrual status, at December 31, 2025 and 2024.
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| Credit Quality of Loans in Commercial Portfolio | The risk category of loans in the Commercial portfolio as of December 31, 2025 and 2024 are as follows:
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| Credit Quality of Personal Banking Loan Portfolio | The credit quality of Personal Banking loans is monitored primarily on the basis of aging/delinquency, and this information is provided as of December 31, 2025 and 2024 below:
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| Amortized Cost Basis of Collateral-Dependent Loans | The following table presents the amortized cost basis of collateral-dependent loans as of December 31, 2025 and 2024.
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| Outstanding Balance Of Loans Classified As Troubled Debt Restructurings | The following tables present the amortized cost at December 31, 2025 of loans that were modified during the year ended December 31, 2025 and the amortized cost at December 31, 2024 of loans that were modified during the year ended December 31, 2024.
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| Financing receivable, financial impacts of loan modification and payment deferrals | The following tables summarize the financial impact of loan modifications and payment deferrals during the years ended December 31, 2025 and December 31, 2024.
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| Financing Receivable, Modified, Subsequent Default | The following tables provide the amortized cost basis at December 31, 2025 of loans to borrowers experiencing financial difficulty that had a payment default during the year ended December 31, 2025 and were modified within the 12 months preceding the payment default, as well as the amortized cost basis at December 31, 2024 of loans to borrowers experiencing financial difficulty that had a payment default during the year ended December 31, 2024 and had been modified within the 12 months preceding the payment default. For purposes of this disclosure, the Company considers "default" to mean 90 days or more past due as to interest or principal.
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| Financing Receivable, Modified, Past Due | The following tables present the amortized cost basis at December 31, 2025 of loans to borrowers experiencing financial difficulty that had been modified within the previous 12 months, as well as the amortized cost basis at December 31, 2024 of loans to borrowers experiencing financial difficulty that had been modified within the previous 12 months.
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Investment Securities (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Investments, Debt and Equity Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary Investment Holdings | Investment securities consisted of the following at December 31, 2025 and 2024:
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| Equity Securities without Readily Determinable Fair Value | Changes in equity investments with no readily determinable fair value for the year ended December 31, 2024 were as follows:
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| Gain (Loss) on Securities | Net gains and losses for the Company's equity securities portfolio during the year ended December 31, 2024 were as follows:
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| Investments Classified by Contractual Maturity Date | A summary of the available for sale debt securities by maturity groupings as of December 31, 2025 is shown below. In the table below, the weighted average yield for the year ended December 31, 2025 is calculated based on amortized cost and has not been tax equated.
* Rate does not reflect inflation adjustment on inflation-protected securities
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| Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value | The table below summarizes debt securities available for sale in an unrealized loss position, aggregated by length of loss period, for which an allowance for credit losses has not been recorded at December 31, 2025 and 2024. Unrealized losses on these available for sale securities have not been recognized into income because after review, the securities were deemed not to be impaired. The unrealized losses on these securities are primarily attributable to changes in interest rates and current market conditions. At December 31, 2025, the Company does not intend to sell the securities, nor is it anticipated that it would be required to sell any of these securities at a loss.
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| Unrealized Gain (Loss) on Investments | For debt securities classified as available for sale, the following table shows the amortized cost, fair value, and allowance for credit losses of securities available for sale at December 31, 2025 and 2024 and the corresponding amounts of gross unrealized gains and losses (pre-tax) in AOCI, by security type.
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| Proceeds From Sales Of Securities And Components Of Investment Securities Gains And Losses | The following table presents proceeds from sales of securities and the components of investment securities gains and losses which have been recognized in earnings.
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Premises and Equipment (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, Plant and Equipment [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Land, Buildings And Equipment | Premises and equipment consist of the following at December 31, 2025 and 2024:
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Goodwill And Other Intangible Assets (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill and Intangible Assets Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Intangible Assets With Estimable Useful Lives | The following table presents information about the Company's intangible assets which have estimable useful lives.
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| Schedule Of Goodwill Allocated By Operating Segments | The carrying amount of goodwill and its allocation among segments at December 31, 2025 and 2024 is shown in the table below. As a result of ongoing assessments, no impairment of goodwill was recorded in 2025, 2024 or 2023. Further, the annual assessment of qualitative factors on January 1, 2026 revealed no likelihood of impairment as of that date.
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| Schedule Of Changes In Carrying Amount Of Goodwill And Net Other Intangible Assets | Changes in the net carrying amount of goodwill and other net intangible assets for the years ended December 31, 2025 and 2024 are shown in the following table.
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| Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | The following table shows the estimated future amortization expense based on existing asset balances and the interest rate environment as of December 31, 2025. The Company’s actual amortization expense in any given period may be different from the estimated amounts depending upon the acquisition of intangible assets, changes in mortgage interest rates, prepayment rates and other market conditions.
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Leases (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leases [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Lessee, Operating Lease, Liability, Maturity [Table Text Block] | The maturities of operating leases at December 31, 2025 are included in the table below.
(1) Excludes $2.8 million of legally binding minimum lease payments for operating leases signed but not yet commenced.
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| Lease, Cost [Table Text Block] | The following table presents the average lease term and discount rate of operating leases.
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| Schedule of Supplemental Cash Flow Information Related to Operating Leases [Table Text Block] | Supplemental cash flow information related to operating leases is included in the table below.
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| Components of Lease Income [Table Text Block] | The following table provides the components of lease income.
(1) Includes rent from Tower Properties, a related party, of $0 and $78 thousand for the years ended December 31, 2025 and 2024, respectively. Tower Properties Company was no longer a lessee of the Company as of January 1, 2025.
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| Net Investment in Sales-type and Direct Financing Leases [Table Text Block] | The following table presents the components of the net investments in direct financing and sales-type leases.
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| Schedule of Maturity of Lease Receivables [Table Text Block] | The maturities of lease receivables at December 31, 2025 are included in the table below.
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Deposits (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Deposits [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Scheduled Maturities Of Total Time Open And Certificates Of Deposit | At December 31, 2025, the scheduled maturities of certificates of deposit were as follows:
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Borrowings (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Short-Term Borrowings | The following table sets forth selected information for federal funds purchased and repurchase agreements.
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Income Taxes (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Tax Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Components Of Income Tax Expense (Benefit) | The components of income tax expense from operations for the years ended December 31, 2025, 2024 and 2023 were as follows:
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| Schedule Of Income Tax Expense Recorded Directly To Stockholders Equity | The components of income tax (benefit) expense recorded directly to shareholders' equity for the years ended 2025, 2024 and 2023 were as follows:
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| Components Of Deferred Tax Assets And Liabilities | Significant components of the Company’s deferred tax assets and liabilities at December 31, 2025 and 2024 were as follows:
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| Schedule Of Company's Actual Income Tax Expense | A reconciliation between the expected federal income tax expense using the federal statutory tax rate of 21%, and the Company's actual income tax expense for 2025, 2024, and 2023 is provided below. The effective tax rate is calculated by dividing income taxes by income before income taxes less the non-controlling interest expense.
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| Schedule of Unrecognized Tax Benefits Roll Forward | The activity in the accrued liability for unrecognized tax benefits for the years ended December 31, 2025 and 2024 was as follows:
The Company and its subsidiaries are subject to income tax by federal, state and local government taxing authorities. Tax years 2022 through 2025 remain open to examination for U.S. federal income tax and for major state taxing jurisdictions.
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| Schedule of Income Tax Paid | Income taxes paid for 2025, 2024, and 2023 was as follows:
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Employee Benefit Plans (Tables) |
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Dec. 31, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retirement Benefits [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Employee Benefits Charged To Operating Expenses | Employee benefits charged to operating expenses are summarized in the table below. Substantially all of the Company’s employees are covered by a defined contribution (401(k)) plan, under which the Company makes matching contributions.
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| Components Of The Net Pension Cost | The following items are components of the net pension cost for the years ended December 31, 2025, 2024 and 2023.
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| Summary Of Pension Plans Funded Status | The following table sets forth the pension plans’ funded status, using valuation dates of December 31, 2025 and 2024.
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| Schedule Of Amounts Not Yet Reflected In Net Periodic Benefit Cost And Included In Accumulated Other Comprehensive Income (Loss), Pre-Tax Basis | Amounts not yet reflected in net periodic benefit cost and included in accumulated other comprehensive income (loss) at December 31, 2025 and 2024 are shown below, including amounts recognized in other comprehensive income during the periods. All amounts are shown on a pre-tax basis.
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| Assumptions On A Weighted Average Basis, Used In Accounting For Plans | The following assumptions, on a weighted average basis, were used in accounting for the plans.
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| Fair Value Of Pension Plan Asset Category | The following table shows the fair values of the Company’s pension plan assets by asset category at December 31, 2025 and 2024. Information about the valuation techniques and inputs used to measure fair value are provided in Note 17 on Fair Value Measurements.
(a) This category represents bonds (excluding mortgage-backed securities) issued by agencies such as the Government National Mortgage Association, the Federal Home Loan Mortgage Corp and the Federal National Mortgage Association. (b) This category represents mortgage-backed securities issued by the agencies mentioned in (a). (c) This category represents investment grade bonds issued in the U.S., primarily by domestic issuers, representing diverse industries. (d) This category represents investments in individual common stocks and equity funds. These holdings are diversified, largely across the electronic technology, technology services, financial services, healthcare technology, and retail trade industries. (e) As of 12/31/2025, this category consists solely of U.S. government money market mutual funds.
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| Future Benefit Payments | The following future benefit payments are expected to be paid:
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Stock-Based Compensation and Directors Stock Purchase Plan (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-Based Payment Arrangement, Noncash Expense [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary Of The Status Of Nonvested Share Awards | Nonvested Restricted Stock Awards Nonvested stock is awarded to key employees by action of the Company's Compensation and Human Resources Committee and Board of Directors. These awards generally vest after 4 to 7 years of continued employment, but vesting terms may vary according to the specifics of the individual grant agreement. There are restrictions as to transferability, sale, pledging, or assigning, among others, prior to the end of the vesting period. Dividend and voting rights are conferred upon grant of restricted stock awards. A summary of the status of the Company’s nonvested share awards as of December 31, 2025 and changes during the year then ended is presented below.
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| Summary Of SAR Activity | A summary of SAR activity during 2025 is presented below.
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| Schedule Of Share Based Payment Award Stock Options Valuation Assumptions [Table Text Block] | The per share average fair value and the model assumptions for SARs granted during the past three years are shown in the table below.
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| Schedule Of Additional Information About Stock Options and SARs Exercises | Additional information about SARs exercised is presented below.
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Accumulated Other Comprehensive Income (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components Of Accumulated Other Comprehensive Income (Loss) |
(1) The pre-tax amounts reclassified from accumulated other comprehensive income to current earnings are included in "investment securities gains (losses), net" in the consolidated statements of income. (2) The pre-tax amounts reclassified from accumulated other comprehensive income to current earnings are included in "interest and fees on loans" in the consolidated statements of income.
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Segments (Tables) |
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| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Financial Information By Segment | Segment Income Statement Data
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| Segment Balance Sheet Data | Segment Balance Sheet Data
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Common Stock (Tables) |
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Earnings Per Share, Basic and Diluted | Presented below is a summary of the components used to calculate basic and diluted income per common share, which have been restated for all stock dividends.
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| Schedule Of Activity In The Outstanding Shares Of The Company's Common Stock | The table below shows activity in the outstanding shares of the Company’s common stock during the past three years. Shares in the table below are presented on an historical basis and have not been restated for the annual 5% stock dividends.
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Regulatory Capital Requirements (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Capital Amounts And Ratios On Consolidated Basis | The following tables show the capital amounts and ratios for the Company (on a consolidated basis) and the Bank, together with the minimum capital adequacy and well-capitalized capital requirements, at the last two year ends.
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Revenue from Contracts with Customers Revenue from Contracts with Customers (Tables) |
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| Revenue from Contract with Customer [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disaggregation of Revenue [Table Text Block] | The following table disaggregates revenue from contracts with customers by major product line.
(1) This revenue is not within the scope of ASC 606, and includes fees relating to bond trading activities, loan fees and sales, derivative instruments, standby letters of credit and various other transactions.
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| Contract with Customer, Asset and Liability [Table Text Block] | The following table presents the opening and closing receivable balances for the years ended December 31, 2025 and 2024 for the Company’s significant revenue categories from contracts with customers.
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| Bank Card Transaction Fees [Table Text Block] | The following table presents the components of bank card fee income.
The majority of debit and credit card fees are reported in the Retail Banking segment, while corporate card and merchant fees are reported in the Commercial segment.
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| Trust Fees [Table Text Block] | The following table shows the components of revenue within trust fees, which are reported within the Wealth segment.
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| Deposit Account Charges and Other Fees [Table Text Block] | The following table shows the components of revenue within deposit account charges and other fees.
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Fair Value Measurements (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Fair Value Disclosures [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary Of Assets And Liabilities Measured At Fair Value On A Recurring Basis | The table below presents the carrying values of assets and liabilities measured at fair value on a recurring basis at December 31, 2025 and 2024. There were no transfers among levels during these years.
*The fair value of each class of derivative is shown in Note 19.
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| Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value On A Recurring Basis | The changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows:
* Included in "net unrealized gains (losses) on securities" in the consolidated statements of comprehensive income.
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| Summary Of Gains And Losses On Level 3 Assets And Liabilities | Gains and losses on the Level 3 assets and liabilities in the table above are reported in the following income categories:
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| Summary Of Quantitative Information About Level 3 Fair Value Measurements | Level 3 Inputs The Company's significant Level 3 measurements, which employ unobservable inputs that are readily quantifiable, pertain to investments in portfolio concerns held by the Company's private equity subsidiaries. Information about these inputs as of December 31, 2025 is presented in the table below.
* Unobservable inputs were weighted by the relative fair value of the instruments.
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| Schedule Of Fair Value Disclosures Measured On Nonrecurring Basis [Table Text Block] | Instruments Measured at Fair Value on a Nonrecurring Basis For assets measured at fair value on a nonrecurring basis during 2025 and 2024, and still held as of December 31, 2025 and 2024, the following table provides the adjustments to fair value recognized during the respective periods, the level of valuation assumptions used to determine each adjustment, and the carrying value of the related individual assets or portfolios at December 31, 2025 and 2024.
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Fair Value Of Financial Instruments (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, by Balance Sheet Grouping [Table Text Block] | The estimated fair values of the Company’s financial instruments and the classification of their fair value measurement within the valuation hierarchy are as follows at December 31, 2025 and 2024:
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Derivative Instruments (Tables) |
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| Derivative Instrument Detail [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Notional Amounts Of Derivative Instruments | The notional amounts of the Company’s derivative instruments are shown in the table below. These contractual amounts, along with other terms of the derivative, are used to determine amounts to be exchanged between counterparties and are not a measure of loss exposure. The Company's derivatives are not accounted for as accounting hedges except for the interest rate floors, as discussed below.
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| Interest rate floor summary | Information about the floors is provided in the table below.
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| Schedule Of Fair Values Of Derivative Instruments | The fair values of the Company’s derivative instruments, whose notional amounts are listed above, are shown in the table below. Information about the valuation methods used to determine fair value is provided in Note 17 on Fair Value Measurements. As stated in the summary of significant accounting policies, derivative instruments and their related gains and losses are presented as operating cash flows in the consolidated statement of cash flows. The Company's policy is to present its derivative assets and derivative liabilities on a gross basis in its consolidated balance sheets, and these are reported in other assets and other liabilities. In prior years, certain collateral posted to and from the Company's clearing counterparty has been applied to the fair values of the cleared swap. There was no reduction to positive or negative fair values of cleared swaps at December 31, 2025 and December 31, 2024.
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| Summary of Cash Flow Hedge Activity [Table Text Block] | The Company made an election to exclude the initial premiums paid on the interest rate floors from the hedge effectiveness measurement. Those initial premiums are amortized over the periods between the premium payment month and the contract maturity month. The pre-tax effects of the gains and losses (both the included and excluded amounts for hedge effectiveness assessment) recognized in the other comprehensive income from the cash flow hedging instruments and the amounts reclassified from accumulated other comprehensive income into income (both included and excluded amounts for hedge effectiveness measurement) are shown in the table below.
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| Summary Of The Effects Of Derivative Instruments On Consolidated Statements Of Income | The gain and loss recognized through various derivative instruments on the consolidated statements of income are shown in the table below.
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| Balance Sheet Offsetting, Derivatives [Table Text Block] |
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Resale and Repurchase Agreements (Tables) |
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| Offsetting [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Offsetting, Resale and Repurchase Agreements [Table Text Block] | The following table shows the extent to which resale agreement assets and repurchase agreement liabilities with the same counterparty have been offset on the consolidated balance sheets, in addition to the extent to which they could potentially be offset. Also shown is collateral received or pledged, which consists of marketable securities. The collateral amounts in the table are limited to the outstanding balances of the related asset or liability (after offsetting is applied); thus amounts of excess collateral are not shown.
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| Schedule of Underlying Assets of Repurchase Agreements [Table Text Block] | The table below shows the remaining contractual maturities of repurchase agreements outstanding at December 31, 2025 and 2024, in addition to the various types of marketable securities that have been pledged by the Company as collateral for these borrowings.
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Commitments, Contingencies And Guarantees (Tables) |
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Dec. 31, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Off-Balance Sheet Instruments Commitments | The following table summarizes these commitments at December 31:
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Related Parties (Tables) |
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Related Party Transactions [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule Of Related Party Expenses | Company maintained property services contracts with Tower Properties, under which Tower Properties provided property management services on three Company-owned office buildings and related parking garages in downtown Kansas City. The Company ended its property management services contract with Tower as of December 31, 2024.
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Parent Company Condensed Financial Statements (Tables) |
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| Condensed Financial Information Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Condensed Balance Sheets |
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| Condensed Statements Of Income |
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| Condensed Statements Of Cash Flows |
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Summary of Significant Accounting Policies Significant Accounting Policies (Narrative) (Details) $ in Thousands |
12 Months Ended | |
|---|---|---|
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Dec. 31, 2025
USD ($)
Locations
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Dec. 31, 2024
USD ($)
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| Accounting Policies [Abstract] | ||
| Locations | Locations | 236 | |
| Restricted Cash and Cash Equivalent | $ 83 | $ 82 |
| Cash Held at Federal Reserve Bank | $ 2,700,000 | |
| Amortization period of annual fees on credit card loans, months | 12 months | |
| Consumer Loans Charged Down to Fair Value [Line Items] | ||
| Delinquency Period Revolving Home Equity Loans Charged Down to Fair Value | 180 days | |
| Period past due credit card loans are charged off, days | 180 days | |
| Period past due loans are placed on non-accrual, days | 90 days | |
| Finite-Lived Intangible Assets [Line Items] | ||
| Common stock dividend rate percentage | 5.00% | |
| Minimum [Member] | ||
| Consumer Loans Charged Down to Fair Value [Line Items] | ||
| Consumer loans charged down to fair value, days delinquent | 120 days | |
| Maximum [Member] | ||
| Consumer Loans Charged Down to Fair Value [Line Items] | ||
| Consumer loans charged down to fair value, days delinquent | 180 days | |
| Buildings [Member] | Minimum [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Depreciable lives for asset, years | 30 years | |
| Buildings [Member] | Maximum [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Depreciable lives for asset, years | 40 years | |
| Building Improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Depreciable lives for asset, years | 10 years | |
| Equipment [Member] | Minimum [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Depreciable lives for asset, years | 3 years | |
| Equipment [Member] | Maximum [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Depreciable lives for asset, years | 10 years | |
| Leasehold Improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Depreciable lives for asset, years | 10 years |
Loans And Allowance For Credit Losses (Narrative) (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Loans and Leases Receivable Disclosure [Line Items] | ||
| Loans To Principal Holders (over 10% ownership in the Company's stock) | $ 0 | |
| Unfunded Loan Commitments | 15,800,000,000 | |
| Unused Approved Credit Card Lines of Credit | 6,100,000,000 | |
| Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Home Loan Bank Debt | 2,600,000,000 | |
| Loans pledged at the Federal Reserve Bank as collateral for discount window borrowings | 2,800,000,000 | |
| Lease Receivable, net of deferred origination costs | 864,888,000 | $ 879,641,000 |
| Lease Receivable, Deferred Income | 97,100,000 | 102,500,000 |
| Financing Receivable, Nonaccrual, No Allowance | 0 | 2,000,000.0 |
| Commitments to lend additional funds to customers with restructured loans | $ 11,400,000 | 14,900,000 |
| Period after which loans are deemed in default | 90 days | |
| Mortgages Held-for-sale, Fair Value Disclosure | $ 4,028,000 | 2,981,000 |
| Unpaid Principal Balance on Personal Real Estate Loans Held for Sale | 4,000,000.0 | |
| Personal Real Estate Loans HFS Past Due | 0 | |
| Personal Real Estate Loans HFS on Non-Accrual Status | 0 | |
| Foreclosed real estate | 1,200,000 | 343,000 |
| Residential Real Estate Acquired Through Foreclosure through Obtaining Physical Possession | 1,000,000.0 | 343,000 |
| Personal property acquired in repossession | 2,300,000 | 2,200,000 |
| Loans Receivable | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Interest Receivable | 74,400,000 | 70,600,000 |
| Commercial Portfolio Segment [Member] | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Financing Receivable, Accrued Interest, Writeoff | 315,000 | 548,000 |
| Personal Banking Portfolio Segment [Member] | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Financing Receivable, Accrued Interest, Writeoff | $ 6,300,000 | $ 6,100,000 |
Loans And Allowance For Credit Losses (Summary Classification Of Held To Maturity Loan Portfolio) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | $ 17,771,263 | $ 17,220,103 |
| Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | 6,439,380 | 6,053,820 |
| Real Estate - Construction And Land [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | 1,438,012 | 1,409,901 |
| Real Estate - Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | 3,674,567 | 3,661,218 |
| Real Estate - Personal [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | 3,053,435 | 3,058,195 |
| Consumer [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | 2,196,822 | 2,073,123 |
| Revolving Home Equity [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | 375,159 | 356,650 |
| Consumer Credit Card [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | 589,694 | 595,930 |
| Overdrafts [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Loans | $ 4,194 | $ 11,266 |
Loans And Allowance For Credit Losses (Loans to Directors and Executive Officers) (Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
USD ($)
| |
| Loans and Leases Receivable, Related Parties [Roll Forward] | |
| Loans to directors and executive officers, beginning balance | $ 38,859 |
| Additions | 58,105 |
| Amounts collected | (18,340) |
| Amounts written off | 0 |
| Loans to directors and executive officers, ending balance | $ 78,624 |
Loans And Allowance For Credit Losses (Summary of Activity in the Allowance For Credit Losses) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Allowance for Credit Loss [Line Items] | |||
| Balance, Asset | $ 179,468 | $ 162,742 | $ 162,395 |
| Provision for credit losses on loans | 57,413 | 39,214 | |
| Loans charged off | 50,040 | 47,271 | |
| Recoveries on Loans | 9,353 | 8,404 | |
| Net loan charge-offs (recoveries) | 40,687 | 38,867 | |
| Balance, Liability | 17,660 | 18,935 | 25,246 |
| Provision for credit losses on unfunded lending commitments | (1,275) | (6,311) | |
| ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS | 197,128 | 181,677 | |
| Commercial Portfolio Segment [Member] | |||
| Allowance for Credit Loss [Line Items] | |||
| Balance, Asset | 116,865 | 106,769 | 108,201 |
| Provision for credit losses on loans | 11,567 | (444) | |
| Loans charged off | 2,545 | 2,035 | |
| Recoveries on Loans | 1,074 | 1,047 | |
| Net loan charge-offs (recoveries) | 1,471 | 988 | |
| Balance, Liability | 16,539 | 17,887 | 23,909 |
| Provision for credit losses on unfunded lending commitments | (1,348) | (6,022) | |
| ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS | 133,404 | 124,656 | |
| Personal Banking Portfolio Segment [Member] | |||
| Allowance for Credit Loss [Line Items] | |||
| Balance, Asset | 62,603 | 55,973 | 54,194 |
| Provision for credit losses on loans | 45,846 | 39,658 | |
| Loans charged off | 47,495 | 45,236 | |
| Recoveries on Loans | 8,279 | 7,357 | |
| Net loan charge-offs (recoveries) | 39,216 | 37,879 | |
| Balance, Liability | 1,121 | 1,048 | $ 1,337 |
| Provision for credit losses on unfunded lending commitments | 73 | (289) | |
| ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS | $ 63,724 | $ 57,021 | |
Loans And Allowance For Credit Losses (Aging Information On Past Due And Accruing Loans) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | $ 17,648,771 | $ 17,093,789 |
| 30 – 89 Days Past Due | 82,083 | 83,520 |
| 90 Days Past Due and Still Accruing | 24,659 | 24,516 |
| Non-accrual | 15,750 | 18,278 |
| Total | 17,771,263 | 17,220,103 |
| Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 6,439,380 | 6,053,820 |
| Real Estate - Construction And Land [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 1,438,012 | 1,409,901 |
| Real Estate - Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 3,674,567 | 3,661,218 |
| Real Estate - Personal [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 3,053,435 | 3,058,195 |
| Consumer Loan [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 2,196,822 | 2,073,123 |
| Revolving Home Equity [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 375,159 | 356,650 |
| Consumer Credit Card [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 589,694 | 595,930 |
| Overdrafts [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 4,194 | 11,266 |
| Commercial Portfolio Segment [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 11,551,959 | 11,124,939 |
| Commercial Portfolio Segment [Member] | Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | 6,437,476 | 6,051,654 |
| 30 – 89 Days Past Due | 1,241 | 1,501 |
| 90 Days Past Due and Still Accruing | 540 | 564 |
| Non-accrual | 123 | 101 |
| Total | 6,439,380 | 6,053,820 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | 1,437,727 | 1,409,681 |
| 30 – 89 Days Past Due | 285 | 0 |
| 90 Days Past Due and Still Accruing | 0 | 0 |
| Non-accrual | 0 | 220 |
| Total | 1,438,012 | 1,409,901 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | 3,636,517 | 3,640,643 |
| 30 – 89 Days Past Due | 23,265 | 5,621 |
| 90 Days Past Due and Still Accruing | 0 | 0 |
| Non-accrual | 14,785 | 14,954 |
| Total | 3,674,567 | 3,661,218 |
| Personal Banking Portfolio Segment [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 6,219,304 | 6,095,164 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | 3,021,212 | 3,021,017 |
| 30 – 89 Days Past Due | 19,450 | 25,267 |
| 90 Days Past Due and Still Accruing | 11,931 | 10,885 |
| Non-accrual | 842 | 1,026 |
| Total | 3,053,435 | 3,058,195 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | 2,165,109 | 2,029,115 |
| 30 – 89 Days Past Due | 28,269 | 40,398 |
| 90 Days Past Due and Still Accruing | 3,444 | 3,610 |
| Non-accrual | 0 | 0 |
| Total | 2,196,822 | 2,073,123 |
| Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | 373,245 | 351,056 |
| 30 – 89 Days Past Due | 1,493 | 2,798 |
| 90 Days Past Due and Still Accruing | 421 | 819 |
| Non-accrual | 0 | 1,977 |
| Total | 375,159 | 356,650 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | 573,698 | 579,670 |
| 30 – 89 Days Past Due | 7,673 | 7,622 |
| 90 Days Past Due and Still Accruing | 8,323 | 8,638 |
| Non-accrual | 0 | 0 |
| Total | 589,694 | 595,930 |
| Personal Banking Portfolio Segment [Member] | Overdrafts [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Current or Less than 30 days Past Due | 3,787 | 10,953 |
| 30 – 89 Days Past Due | 407 | 313 |
| 90 Days Past Due and Still Accruing | 0 | 0 |
| Non-accrual | 0 | 0 |
| Total | $ 4,194 | $ 11,266 |
Loans And Allowance For Credit Losses (Credit Quality Indicators of the Commercial Loan Portfolio) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | $ 17,771,263 | $ 17,220,103 |
| Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 6,439,380 | 6,053,820 |
| Real Estate - Construction And Land [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 1,438,012 | 1,409,901 |
| Real Estate - Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Total | 3,674,567 | 3,661,218 |
| Commercial Portfolio Segment [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 3,575,521 | 2,697,978 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,592,005 | 2,043,809 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 1,277,215 | 1,878,607 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 1,201,714 | 947,349 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 653,886 | 537,261 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 797,985 | 837,905 |
| Revolving Loans Amortized Cost Basis | 2,453,633 | 2,182,030 |
| Total | 11,551,959 | 11,124,939 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 200 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 429 | 275 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 516 | 40 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 165 | 53 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 2 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 10 | 80 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 1,423 | 1,387 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 2,545 | 2,035 |
| Commercial Portfolio Segment [Member] | Pass [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 3,489,006 | 2,680,359 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,557,881 | 2,004,105 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 1,257,226 | 1,801,310 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 1,118,999 | 907,172 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 616,188 | 515,343 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 728,797 | 720,906 |
| Revolving Loans Amortized Cost Basis | 2,313,565 | 2,051,539 |
| Total | 11,081,662 | 10,680,734 |
| Commercial Portfolio Segment [Member] | Special Mention [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 86,419 | 13,900 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 31,572 | 7,978 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 6,233 | 21,324 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 13,757 | 16,679 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 1,858 | 1,906 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 3,340 | 2,363 |
| Revolving Loans Amortized Cost Basis | 47,599 | 34,997 |
| Total | 190,778 | 99,147 |
| Commercial Portfolio Segment [Member] | Substandard [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 96 | 3,498 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,503 | 31,679 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 13,724 | 55,802 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 68,792 | 23,498 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 35,687 | 5,344 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 51,340 | 114,468 |
| Revolving Loans Amortized Cost Basis | 92,469 | 95,494 |
| Total | 264,611 | 329,783 |
| Commercial Portfolio Segment [Member] | Non-Accrual [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 221 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 49 | 47 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 32 | 171 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 166 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 153 | 14,668 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 14,508 | 168 |
| Revolving Loans Amortized Cost Basis | 0 | 0 |
| Total | 14,908 | 15,275 |
| Commercial Portfolio Segment [Member] | Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 1,717,805 | 1,521,094 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 852,790 | 970,070 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 575,767 | 624,768 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 434,267 | 414,893 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 257,307 | 149,674 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 338,556 | 362,309 |
| Revolving Loans Amortized Cost Basis | 2,262,888 | 2,011,012 |
| Total | 6,439,380 | 6,053,820 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 200 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 389 | 275 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 116 | 40 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 165 | 53 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 2 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 10 | 18 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 1,423 | 1,387 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 2,105 | 1,973 |
| Commercial Portfolio Segment [Member] | Business [Member] | Pass [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 1,704,299 | 1,505,299 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 847,973 | 956,449 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 568,361 | 596,681 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 416,732 | 405,669 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 252,398 | 148,483 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 336,662 | 350,106 |
| Revolving Loans Amortized Cost Basis | 2,129,247 | 1,887,596 |
| Total | 6,255,672 | 5,850,283 |
| Commercial Portfolio Segment [Member] | Business [Member] | Special Mention [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 13,410 | 13,576 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,149 | 7,978 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 2,661 | 8,941 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 1,536 | 4,155 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 893 | 263 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,375 | 2,065 |
| Revolving Loans Amortized Cost Basis | 47,568 | 34,997 |
| Total | 71,592 | 71,975 |
| Commercial Portfolio Segment [Member] | Business [Member] | Substandard [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 96 | 2,218 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 619 | 5,596 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 4,713 | 19,145 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 15,957 | 5,069 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 4,016 | 928 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 519 | 10,086 |
| Revolving Loans Amortized Cost Basis | 86,073 | 88,419 |
| Total | 111,993 | 131,461 |
| Commercial Portfolio Segment [Member] | Business [Member] | Non-Accrual [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 1 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 49 | 47 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 32 | 1 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 42 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 52 |
| Revolving Loans Amortized Cost Basis | 0 | 0 |
| Total | 123 | 101 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 464,150 | 419,782 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 283,778 | 445,383 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 381,821 | 451,606 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 265,189 | 53,462 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 22,105 | 3,143 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 2,860 | 2,450 |
| Revolving Loans Amortized Cost Basis | 18,109 | 34,075 |
| Total | 1,438,012 | 1,409,901 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 40 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 40 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Pass [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 450,046 | 419,562 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 283,778 | 442,720 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 379,456 | 451,606 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 239,314 | 53,462 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 3,857 | 3,143 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 2,860 | 2,450 |
| Revolving Loans Amortized Cost Basis | 18,109 | 34,075 |
| Total | 1,377,420 | 1,407,018 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Special Mention [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 14,104 | |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | |
| Revolving Loans Amortized Cost Basis | 0 | |
| Total | 14,104 | |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Substandard [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 2,663 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 2,365 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 25,875 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 18,248 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 0 | 0 |
| Total | 46,488 | 2,663 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Non-Accrual [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 220 | |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | |
| Revolving Loans Amortized Cost Basis | 0 | |
| Total | 220 | |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 1,393,566 | 757,102 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 455,437 | 628,356 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 319,627 | 802,233 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 502,258 | 478,994 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 374,474 | 384,444 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 456,569 | 473,146 |
| Revolving Loans Amortized Cost Basis | 172,636 | 136,943 |
| Total | 3,674,567 | 3,661,218 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 400 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 0 | 62 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 400 | 62 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Pass [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 1,334,661 | 755,498 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 426,130 | 604,936 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 309,409 | 753,023 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 462,953 | 448,041 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 359,933 | 363,717 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 389,275 | 368,350 |
| Revolving Loans Amortized Cost Basis | 166,209 | 129,868 |
| Total | 3,448,570 | 3,423,433 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Special Mention [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 58,905 | 324 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 27,423 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 3,572 | 12,383 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 12,221 | 12,524 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 965 | 1,643 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,965 | 298 |
| Revolving Loans Amortized Cost Basis | 31 | 0 |
| Total | 105,082 | 27,172 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Substandard [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 1,280 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,884 | 23,420 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 6,646 | 36,657 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 26,960 | 18,429 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 13,423 | 4,416 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 50,821 | 104,382 |
| Revolving Loans Amortized Cost Basis | 6,396 | 7,075 |
| Total | 106,130 | 195,659 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Non-Accrual [Member] | ||
| Loans And Allowance For Loan Losses [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 170 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 124 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 153 | 14,668 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 14,508 | 116 |
| Revolving Loans Amortized Cost Basis | 0 | 0 |
| Total | $ 14,785 | $ 14,954 |
Loans And Allowance for Credit Losses (Credit Quality Indicators Personal Banking Loan Portfolio) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Total | $ 17,771,263 | $ 17,220,103 |
| Real Estate - Personal [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Total | 3,053,435 | 3,058,195 |
| Consumer Loan [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Total | 2,196,822 | 2,073,123 |
| Revolving Home Equity [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Total | 375,159 | 356,650 |
| Consumer Credit Card [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Total | 589,694 | 595,930 |
| Overdrafts [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Total | 4,194 | 11,266 |
| Personal Banking Portfolio Segment [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 911,367 | 818,417 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 556,650 | 758,825 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 575,716 | 634,706 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 497,592 | 649,974 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 533,968 | 712,656 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,264,890 | 790,211 |
| Revolving Loans Amortized Cost Basis | 1,879,121 | 1,730,375 |
| Total | 6,219,304 | 6,095,164 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 3,416 | 4,127 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 3,909 | 3,191 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 3,013 | 2,974 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 2,121 | 1,391 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 768 | 540 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 388 | 277 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 33,880 | 32,736 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 47,495 | 45,236 |
| Personal Banking Portfolio Segment [Member] | Current to 90 Days Past Due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 911,180 | 817,287 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 555,693 | 757,341 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 573,729 | 632,869 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 493,735 | 647,763 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 531,929 | 709,429 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,259,576 | 786,107 |
| Revolving Loans Amortized Cost Basis | 1,868,501 | 1,717,413 |
| Total | 6,194,343 | 6,068,209 |
| Personal Banking Portfolio Segment [Member] | Over 90 days past due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 187 | 1,130 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 957 | 1,476 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 1,987 | 1,837 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 3,857 | 2,103 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 1,937 | 3,227 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 4,574 | 3,194 |
| Revolving Loans Amortized Cost Basis | 10,620 | 10,985 |
| Total | 24,119 | 23,952 |
| Personal Banking Portfolio Segment [Member] | Non-Accrual [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 8 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 108 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 102 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 740 | 910 |
| Revolving Loans Amortized Cost Basis | 0 | 1,977 |
| Total | 842 | 3,003 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 386,816 | 387,784 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 313,472 | 388,386 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 337,531 | 406,111 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 364,374 | 484,731 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 440,508 | 640,295 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,201,969 | 739,954 |
| Revolving Loans Amortized Cost Basis | 8,765 | 10,934 |
| Total | 3,053,435 | 3,058,195 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 47 | 82 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 65 | 115 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 416 | 83 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 48 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 29 | 22 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 605 | 302 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Current to 90 Days Past Due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 386,816 | 387,119 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 312,902 | 387,486 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 335,950 | 404,680 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 360,793 | 482,733 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 438,586 | 637,115 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,196,850 | 736,217 |
| Revolving Loans Amortized Cost Basis | 8,765 | 10,934 |
| Total | 3,040,662 | 3,046,284 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Over 90 days past due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 665 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 570 | 892 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 1,581 | 1,431 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 3,581 | 1,890 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 1,820 | 3,180 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 4,379 | 2,827 |
| Revolving Loans Amortized Cost Basis | 0 | 0 |
| Total | 11,931 | 10,885 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Non-Accrual [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 8 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 108 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 102 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 740 | 910 |
| Revolving Loans Amortized Cost Basis | 0 | 0 |
| Total | 842 | 1,026 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 520,357 | 419,367 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 243,178 | 370,439 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 238,185 | 228,595 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 133,218 | 165,243 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 93,460 | 72,361 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 62,921 | 50,257 |
| Revolving Loans Amortized Cost Basis | 905,503 | 766,861 |
| Total | 2,196,822 | 2,073,123 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 894 | 1,438 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 3,862 | 3,109 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 2,948 | 2,859 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 1,705 | 1,308 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 720 | 540 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 359 | 255 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 2,032 | 2,309 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 12,520 | 11,818 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Current to 90 Days Past Due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 520,170 | 418,902 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 242,791 | 369,855 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 237,779 | 228,189 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 132,942 | 165,030 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 93,343 | 72,314 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 62,726 | 49,890 |
| Revolving Loans Amortized Cost Basis | 903,627 | 765,333 |
| Total | 2,193,378 | 2,069,513 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Over 90 days past due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 187 | 465 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 387 | 584 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 406 | 406 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 276 | 213 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 117 | 47 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 195 | 367 |
| Revolving Loans Amortized Cost Basis | 1,876 | 1,528 |
| Total | 3,444 | 3,610 |
| Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 375,159 | 356,650 |
| Total | 375,159 | 356,650 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 15 | 0 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 15 | 0 |
| Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member] | Current to 90 Days Past Due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 374,738 | 353,854 |
| Total | 374,738 | 353,854 |
| Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member] | Over 90 days past due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 421 | 819 |
| Total | 421 | 819 |
| Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member] | Non-Accrual [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | |
| Revolving Loans Amortized Cost Basis | 1,977 | |
| Total | 1,977 | |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 589,694 | 595,930 |
| Total | 589,694 | 595,930 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 31,833 | 30,427 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 31,833 | 30,427 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Current to 90 Days Past Due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 581,371 | 587,292 |
| Total | 581,371 | 587,292 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Over 90 days past due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 8,323 | 8,638 |
| Total | 8,323 | 8,638 |
| Personal Banking Portfolio Segment [Member] | Overdrafts [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 4,194 | 11,266 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 0 | 0 |
| Total | 4,194 | 11,266 |
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff | 2,522 | 2,689 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 2,522 | 2,689 |
| Personal Banking Portfolio Segment [Member] | Overdrafts [Member] | Current to 90 Days Past Due [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 4,194 | 11,266 |
| Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
| Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
| Revolving Loans Amortized Cost Basis | 0 | 0 |
| Total | $ 4,194 | $ 11,266 |
Loans And Allowance For Credit Losses (Collateral-Dependent Loans) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Collateral Dependent Loans, Amortized Cost | $ 14,508 | $ 16,644 |
| Real Estate | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Collateral Dependent Loans, Amortized Cost | 14,508 | 16,644 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Collateral Dependent Loans, Amortized Cost | 14,508 | 14,667 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Real Estate | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Collateral Dependent Loans, Amortized Cost | 14,508 | 14,667 |
| Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member] | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Collateral Dependent Loans, Amortized Cost | 0 | 1,977 |
| Personal Banking Portfolio Segment [Member] | Revolving Home Equity [Member] | Real Estate | ||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||
| Collateral Dependent Loans, Amortized Cost | $ 0 | $ 1,977 |
Loans And Allowance For Credit Losses (Modified Amortized Cost) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 178,991 | $ 182,263 |
| Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 1.00% | 1.10% |
| Extended Maturity | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 166,029 | $ 169,185 |
| Payment Deferral | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 9,922 | 9,739 |
| Interest Rate Below Market Reduction | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 3,040 | 3,273 |
| Interest/Fees Forgiven | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Other Loan Restructuring | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 66 |
| Commercial Portfolio Segment [Member] | Business [Member] | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 82,057 | $ 48,002 |
| Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 1.30% | 0.80% |
| Commercial Portfolio Segment [Member] | Business [Member] | Extended Maturity | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 82,057 | $ 48,002 |
| Commercial Portfolio Segment [Member] | Business [Member] | Payment Deferral | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Business [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Business [Member] | Interest/Fees Forgiven | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Business [Member] | Other Loan Restructuring | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 18,258 | $ 0 |
| Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 1.30% | 0.00% |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Extended Maturity | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 18,258 | $ 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Payment Deferral | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Interest/Fees Forgiven | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | Other Loan Restructuring | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 65,684 | $ 121,183 |
| Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 1.80% | 3.30% |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Extended Maturity | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 65,684 | $ 121,183 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Payment Deferral | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Interest/Fees Forgiven | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Other Loan Restructuring | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 9,863 | $ 9,023 |
| Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.30% | 0.30% |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Extended Maturity | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 30 | $ 0 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Payment Deferral | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 9,833 | 9,023 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Interest/Fees Forgiven | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Other Loan Restructuring | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 174 | $ 878 |
| Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.00% | 0.00% |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Extended Maturity | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 0 | $ 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Payment Deferral | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 89 | 716 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 85 | 96 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Interest/Fees Forgiven | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Other Loan Restructuring | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 66 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 2,955 | $ 3,177 |
| Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.50% | 0.50% |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Extended Maturity | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 0 | $ 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Payment Deferral | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 2,955 | 3,177 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Interest/Fees Forgiven | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Other Loan Restructuring | ||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||
| Financing Receivable, Modified in Period, Amount | $ 0 | $ 0 |
Loans And Allowance For Credit Losses (Financial Impacts of Loan Modifications) (Details) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Commercial Portfolio Segment [Member] | Business [Member] | ||
| Financial Impacts of Loan Modifications [Line Items] | ||
| Financing Receivable, Modified, Weighted Average Term Increase from Modification | 11 months | 7 months |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | ||
| Financial Impacts of Loan Modifications [Line Items] | ||
| Financing Receivable, Modified, Weighted Average Term Increase from Modification | 3 months | |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | ||
| Financial Impacts of Loan Modifications [Line Items] | ||
| Financing Receivable, Modified, Weighted Average Term Increase from Modification | 22 months | 10 months |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | ||
| Financial Impacts of Loan Modifications [Line Items] | ||
| Financing Receivable, Modified, Weighted Average Term Increase from Modification | 9 months | |
| Financing Receivable, Modified, Weighted Average Deferral of Certain Payments | 25 years | 16 years |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | ||
| Financial Impacts of Loan Modifications [Line Items] | ||
| Financing Receivable, Modified, Weighted Average Deferral of Certain Payments | 8 years | 19 years |
| Financing Receivable, Interest Rate Decrease from Modification | Reduced contractual interest rate from average 22% to 6%. | Reduced contractual interest rate from average 21% to 6%. |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | ||
| Financial Impacts of Loan Modifications [Line Items] | ||
| Financing Receivable, Interest Rate Decrease from Modification | Reduced contractual interest rate from average 22% to 6%. | Reduced contractual interest rate from average 21% to 6%. |
Loans And Allowance For Credit Losses (Amortized Cost Basis of Loans to Borrowers with Financial Difficulty with a Payment Default) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | $ 17,625 | $ 19,104 |
| Extended Maturity | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 14,508 | 14,668 |
| Payment Deferral | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 2,622 | 3,818 |
| Interest Rate Below Market Reduction | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 495 | 618 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 14,508 | 14,668 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Extended Maturity | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 14,508 | 14,668 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Payment Deferral | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 0 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 2,587 | 3,818 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Extended Maturity | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Payment Deferral | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 2,587 | 3,818 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 60 | 23 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Extended Maturity | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Payment Deferral | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 35 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 25 | 23 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 470 | 595 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Extended Maturity | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Payment Deferral | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | 0 | 0 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | Interest Rate Below Market Reduction | ||
| Financing Receivable, Modified, Subsequent Default [Line Items] | ||
| Financing Receivable, Modified, Subsequent Default | $ 470 | $ 595 |
Loans And Allowance For Credit Losses (Amortized Cost Basis of Loans Modified After Adoption of ASU 2022-02) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Financing Receivable, Modified, Past Due [Line Items] | ||
| Financing Receivable, Modified in Period, Current | $ 158,965 | $ 162,333 |
| Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due | 4,165 | 3,104 |
| Financing Receivable, Modified in Period, Ninety Days Past Due | 15,861 | 16,826 |
| Financing Receivable, Modified in Period, Amount | 178,991 | 182,263 |
| Commercial Portfolio Segment [Member] | Business [Member] | ||
| Financing Receivable, Modified, Past Due [Line Items] | ||
| Financing Receivable, Modified in Period, Current | 82,057 | 47,958 |
| Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due | 0 | 44 |
| Financing Receivable, Modified in Period, Ninety Days Past Due | 0 | 0 |
| Financing Receivable, Modified in Period, Amount | 82,057 | 48,002 |
| Commercial Portfolio Segment [Member] | Real Estate - Construction And Land [Member] | ||
| Financing Receivable, Modified, Past Due [Line Items] | ||
| Financing Receivable, Modified in Period, Current | 18,258 | |
| Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due | 0 | |
| Financing Receivable, Modified in Period, Ninety Days Past Due | 0 | |
| Financing Receivable, Modified in Period, Amount | 18,258 | 0 |
| Commercial Portfolio Segment [Member] | Real Estate - Business [Member] | ||
| Financing Receivable, Modified, Past Due [Line Items] | ||
| Financing Receivable, Modified in Period, Current | 51,176 | 106,516 |
| Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due | 0 | 0 |
| Financing Receivable, Modified in Period, Ninety Days Past Due | 14,508 | 14,667 |
| Financing Receivable, Modified in Period, Amount | 65,684 | 121,183 |
| Personal Banking Portfolio Segment [Member] | Real Estate - Personal [Member] | ||
| Financing Receivable, Modified, Past Due [Line Items] | ||
| Financing Receivable, Modified in Period, Current | 5,124 | 4,484 |
| Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due | 3,633 | 2,613 |
| Financing Receivable, Modified in Period, Ninety Days Past Due | 1,106 | 1,926 |
| Financing Receivable, Modified in Period, Amount | 9,863 | 9,023 |
| Personal Banking Portfolio Segment [Member] | Consumer Loan [Member] | ||
| Financing Receivable, Modified, Past Due [Line Items] | ||
| Financing Receivable, Modified in Period, Current | 120 | 856 |
| Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due | 18 | 17 |
| Financing Receivable, Modified in Period, Ninety Days Past Due | 36 | 5 |
| Financing Receivable, Modified in Period, Amount | 174 | 878 |
| Personal Banking Portfolio Segment [Member] | Consumer Credit Card [Member] | ||
| Financing Receivable, Modified, Past Due [Line Items] | ||
| Financing Receivable, Modified in Period, Current | 2,230 | 2,519 |
| Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due | 514 | 430 |
| Financing Receivable, Modified in Period, Ninety Days Past Due | 211 | 228 |
| Financing Receivable, Modified in Period, Amount | $ 2,955 | $ 3,177 |
Investment Securities (Narrative) (Details) |
3 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|
|
Sep. 30, 2024
USD ($)
$ / shares
shares
|
Jun. 30, 2024
USD ($)
$ / shares
shares
|
Dec. 31, 2025
USD ($)
shares
|
Dec. 31, 2024
USD ($)
Rate
|
May 03, 2024
USD ($)
shares
|
Mar. 31, 2024
USD ($)
shares
|
Dec. 31, 2023
USD ($)
|
|
| Investment [Line Items] | |||||||
| Equity Securities without Readily Determinable Fair Value, Amount | $ 9,803,000 | $ 9,083,000 | $ 6,978,000 | ||||
| Percentage decrease requiring a review for impairment | 20.00% | ||||||
| Fair value of securities on other-than-temporary impairment watch list | $ 896,700,000 | 1,600,000,000 | |||||
| Debt Securities, Available-for-sale, Unrealized Loss Position | 5,882,003,000 | 8,134,911,000 | |||||
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 692,094,000 | 994,534,000 | |||||
| Available for sale securities in loss position at period end, change in unrealized loss | (302,400,000) | ||||||
| Debt Securities, Available-for-Sale, Planned Sale, Amortized Cost | $ 1,200,000,000 | ||||||
| Debt Securities, Available-for-Sale, Planned Sale, Yield | Rate | 2.10% | ||||||
| Loss on Available for Sale debt securities portfolio repositioning | $ 179,100,000 | ||||||
| Debt Securities, Available-for-Sale, Planned Sale, Reinvestment | $ 928,800,000 | ||||||
| Debt Securities, Available-for-Sale, Planned Sale, Yield of Reinvestment | Rate | 4.60% | ||||||
| Securities pledged as collateral | $ 7,300,000,000 | $ 6,900,000,000 | |||||
| Number of investments in a single issuer that exceed 10% of stockholder's equity | 0 | ||||||
| No investment in a single issuer exceeds this percentage of stockholder's equity | 10.00% | ||||||
| Asset Pledged as Collateral with Right | |||||||
| Investment [Line Items] | |||||||
| Financial Instruments, Owned, at Fair Value | $ 0 | ||||||
| Visa Class B-1 Shares | |||||||
| Investment [Line Items] | |||||||
| Equity Securities without Readily Determinable Fair Value, Shares | shares | 823,447 | ||||||
| Exchange Offer, Original Shares Held | shares | 823,447 | ||||||
| Equity Securities without Readily Determinable Fair Value, Carrying Value | $ 0 | ||||||
| US Treasury and Government [Member] | |||||||
| Investment [Line Items] | |||||||
| U.S. Treasury inflation-protected securities held | 419,400,000 | ||||||
| Debt Securities, Available-for-sale, Unrealized Loss Position | 926,173,000 | 1,846,004,000 | |||||
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 10,864,000 | 41,859,000 | |||||
| Investment Securities | |||||||
| Investment [Line Items] | |||||||
| Interest Receivable | $ 42,000,000.0 | 35,000,000.0 | |||||
| Visa Class A Shares | |||||||
| Investment [Line Items] | |||||||
| Exchange Offer, Conversion Rate of Common Stock | 1.5875 | ||||||
| Equity Securities Sold, Shares | shares | 218,000 | 436,000 | |||||
| Equity Securities Sold, Average Price | $ / shares | $ 260.56 | $ 274.91 | |||||
| Proceeds from Sale of Equity Securities | $ 56,800,000 | $ 119,800,000 | $ 176,600,000 | ||||
| Visa Class C Shares | |||||||
| Investment [Line Items] | |||||||
| Exchange Offer, Common Shares Received | shares | 163,404 | ||||||
| Visa Class B-2 Shares | |||||||
| Investment [Line Items] | |||||||
| Equity Securities without Readily Determinable Fair Value, Shares | shares | 411,723 | ||||||
| Exchange Offer, Common Shares Received | shares | 411,723 | ||||||
| Equity Securities without Readily Determinable Fair Value, Amount | $ 0 | ||||||
Investment Securities (Investment Securities, At Fair Value) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | |||
| Debt Securities, Available-for-sale | $ 9,095,513 | $ 9,136,853 | |
| Trading securities | 40,080 | 38,034 | |
| Equity securities with readily determinable fair values | 47,551 | 48,359 | |
| Equity Securities without Readily Determinable Fair Value, Amount | 9,803 | 9,083 | $ 6,978 |
| Federal Reserve Bank Stock | 35,918 | 35,545 | |
| Federal Home Loan Bank Stock | 10,198 | 10,120 | |
| Private Equity Investments | 184,343 | 184,386 | |
| Total investment securities | $ 9,423,406 | $ 9,462,380 |
Investment Securities (Equity Securities without Readily Determinable Fair Value) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2025 |
Dec. 31, 2023 |
|
| Equity Securities without Readily Determinable Fair Value [Line Items] | |||
| Equity Securities without Readily Determinable Fair Value, Amount | $ 9,083 | $ 9,803 | $ 6,978 |
| Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount | 178,227 | ||
| Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount | (416) | ||
| Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount | 0 | ||
| Sales of Equity Securities Without Readily Determinable Fair Value | $ (175,706) |
Investment Securities (Gain (Loss) on Securities) (Details) - Equity securities [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Gain (Loss) on Securities [Line Items] | |||
| Equity Securities, FV-NI, Gain (Loss) | $ 1,376 | $ 178,092 | $ (487) |
| Equity Securities, FV-NI, Realized Gain (Loss) | (176,755) | ||
| Equity Securities, FV-NI, Unrealized Gain (Loss) | $ 1,337 | ||
Investment Securities (Summary Of Available For Sale Investment Securities By Maturity Groupings) (Details) - USD ($) |
Dec. 31, 2025 |
Dec. 31, 2024 |
||
|---|---|---|---|---|
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | $ 9,742,278,000 | $ 10,127,426,000 | ||
| Debt Securities, Available-for-sale, Fair Value | 9,095,513,000 | 9,136,853,000 | ||
| U.S. Government And Federal Agency Obligations [Member] | ||||
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | 3,257,561,000 | 2,594,130,000 | ||
| Debt Securities, Available-for-sale, Fair Value | 3,279,100,000 | 2,555,252,000 | ||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost | 389,021,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value | 389,986,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost | 1,779,346,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value | 1,792,019,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost | 982,623,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value | 989,466,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost | 106,571,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value | $ 107,629,000 | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield | [1] | 3.61% | ||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, Year One | [1] | 3.85% | ||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five | [1] | 3.46% | ||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 5 Through 10 | [1] | 3.71% | ||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 10 | [1] | 4.50% | ||
| US Government-sponsored Enterprise Debt Securities [Member] | ||||
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | $ 54,951,000 | 55,425,000 | ||
| Debt Securities, Available-for-sale, Fair Value | 44,712,000 | 42,849,000 | ||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost | 4,306,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value | 4,112,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost | 30,824,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value | 26,547,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost | 19,821,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value | $ 14,053,000 | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield | 2.37% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five | 2.94% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 5 Through 10 | 2.46% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 10 | 2.12% | |||
| State and municipal obligations [Member] | ||||
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | $ 715,037,000 | 822,790,000 | ||
| Debt Securities, Available-for-sale, Fair Value | 664,733,000 | 742,891,000 | ||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost | 51,754,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value | 51,339,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost | 415,328,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value | 397,576,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost | 141,134,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value | 126,470,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost | 106,821,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value | $ 89,348,000 | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield | 1.85% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, Year One | 1.91% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five | 1.79% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 5 Through 10 | 1.79% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 10 | 2.14% | |||
| Agency mortgage-backed securities [Member] | ||||
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | $ 3,786,811,000 | 4,195,182,000 | ||
| Debt Securities, Available-for-sale, Fair Value | $ 3,223,105,000 | 3,444,891,000 | ||
| Debt Securities, Available-for-Sale, Weighted Average Yield | 2.11% | |||
| Non-agency mortgage-backed securities [Member] | ||||
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | $ 467,200,000 | 625,539,000 | ||
| Debt Securities, Available-for-sale, Fair Value | $ 435,688,000 | 568,689,000 | ||
| Debt Securities, Available-for-Sale, Weighted Average Yield | 2.22% | |||
| Asset-backed Securities [Member] | ||||
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | $ 1,269,503,000 | 1,595,797,000 | ||
| Debt Securities, Available-for-sale, Fair Value | $ 1,262,045,000 | 1,557,015,000 | ||
| Debt Securities, Available-for-Sale, Weighted Average Yield | 3.78% | |||
| Total mortgage and asset-backed securities [Member] | ||||
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | $ 5,523,514,000 | 6,416,518,000 | ||
| Debt Securities, Available-for-sale, Fair Value | $ 4,920,838,000 | 5,570,595,000 | ||
| Debt Securities, Available-for-Sale, Weighted Average Yield | 2.50% | |||
| Other Debt Securities [Member] | ||||
| Investment [Line Items] | ||||
| Debt Securities, Available-for-sale, Amortized Cost | $ 191,215,000 | 238,563,000 | ||
| Debt Securities, Available-for-sale, Fair Value | 186,130,000 | $ 225,266,000 | ||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost | 22,425,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value | 22,278,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost | 61,522,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value | 57,611,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost | 83,331,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value | 82,357,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost | 23,937,000 | |||
| Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value | $ 23,884,000 | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield | 2.98% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, Year One | 1.67% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five | 1.76% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 5 Through 10 | 4.08% | |||
| Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 10 | 3.48% | |||
| ||||
Investment Securities (Securities With Unrealized Losses And Length Of Impairment Period) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 659,636 | $ 1,757,431 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 2,704 | 27,884 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 5,222,367 | 6,377,480 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 689,390 | 966,650 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 5,882,003 | 8,134,911 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 692,094 | 994,534 |
| US Treasury and Government [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 612,167 | 1,492,875 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 2,620 | 24,662 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 314,006 | 353,129 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 8,244 | 17,197 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 926,173 | 1,846,004 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 10,864 | 41,859 |
| US Government-sponsored Enterprise Debt Securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 0 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 44,712 | 42,848 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 10,239 | 12,576 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 44,712 | 42,848 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 10,239 | 12,576 |
| State and municipal obligations [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 12,157 | 14,860 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 18 | 230 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 636,492 | 724,587 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 50,323 | 79,685 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 648,649 | 739,447 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 50,341 | 79,915 |
| Agency mortgage-backed securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 2,437 | 3,882 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 30 | 42 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 3,148,627 | 3,409,405 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 565,056 | 750,664 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 3,151,064 | 3,413,287 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 565,086 | 750,706 |
| Non-agency mortgage-backed securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 10 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 421,508 | 564,637 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 31,942 | 56,986 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 421,508 | 564,647 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 31,942 | 56,986 |
| Asset-backed Securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 32,875 | 219,414 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 36 | 2,371 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 546,984 | 1,083,938 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 16,925 | 36,824 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 579,859 | 1,303,352 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 16,961 | 39,195 |
| Total mortgage and asset-backed securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 35,312 | 223,306 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 66 | 2,413 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 4,117,119 | 5,057,980 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 613,923 | 844,474 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 4,152,431 | 5,281,286 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 613,989 | 846,887 |
| Other Debt Securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 26,390 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 579 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 110,038 | 198,936 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 6,661 | 12,718 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 110,038 | 225,326 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ 6,661 | $ 13,297 |
Investment Securities (Available For Sale Securities Unrealized Gains And Losses, By Security Type) (Details) - USD ($) |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | $ 9,742,278,000 | $ 10,127,426,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 45,329,000 | 3,961,000 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (692,094,000) | (994,534,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | 9,095,513,000 | 9,136,853,000 |
| U.S. Government And Federal Agency Obligations [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | 3,257,561,000 | 2,594,130,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 32,403,000 | 2,981,000 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (10,864,000) | (41,859,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | 3,279,100,000 | 2,555,252,000 |
| US Government-sponsored Enterprise Debt Securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | 54,951,000 | 55,425,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 0 | 0 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (10,239,000) | (12,576,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | 44,712,000 | 42,849,000 |
| State and municipal obligations [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | 715,037,000 | 822,790,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 37,000 | 16,000 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (50,341,000) | (79,915,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | 664,733,000 | 742,891,000 |
| Agency mortgage-backed securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | 3,786,811,000 | 4,195,182,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 1,380,000 | 415,000 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (565,086,000) | (750,706,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | 3,223,105,000 | 3,444,891,000 |
| Non-agency mortgage-backed securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | 467,200,000 | 625,539,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 430,000 | 136,000 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (31,942,000) | (56,986,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | 435,688,000 | 568,689,000 |
| Asset-backed Securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | 1,269,503,000 | 1,595,797,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 9,503,000 | 413,000 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (16,961,000) | (39,195,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | 1,262,045,000 | 1,557,015,000 |
| Total mortgage and asset-backed securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | 5,523,514,000 | 6,416,518,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 11,313,000 | 964,000 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (613,989,000) | (846,887,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | 4,920,838,000 | 5,570,595,000 |
| Other Debt Securities [Member] | ||
| Investment [Line Items] | ||
| Debt Securities, Available-for-sale, Amortized Cost | 191,215,000 | 238,563,000 |
| Available For Sale Securities, Gross Unreailzed Gain at Period End | 1,576,000 | 0 |
| Available For Sale Securities, Gross Unrealized Loss at Period End | (6,661,000) | (13,297,000) |
| Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
| Debt Securities, Available-for-sale, Fair Value | $ 186,130,000 | $ 225,266,000 |
Investment Securities (Proceeds From Sales Of Securities And Components Of Investment Securities Gains And Losses) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|||
| Investment [Line Items] | |||||
| Proceeds from sales of available for sale debt securities including pending trades | $ 70,145 | $ 1,080,083 | $ 1,101,782 | ||
| Proceeds from sale of equity securities | 0 | 176,780 | 0 | ||
| Proceeds from sales of other investments including pending trades | 15,811 | 38,724 | 40,167 | ||
| Total proceeds from sales of investments including pending trades | 85,956 | 1,295,587 | 1,141,949 | ||
| Investment securities gains (losses), net | [1] | 3,660 | 7,823 | 14,985 | |
| Available-for-sale Securities [Member] | |||||
| Investment [Line Items] | |||||
| Gains realized on sales | 4 | 0 | 143 | ||
| Loss realized on sales | (8,414) | 196,283 | 8,587 | ||
| Equity securities [Member] | |||||
| Investment [Line Items] | |||||
| Equity Securities, FV-NI, Gain (Loss) | 1,376 | 178,092 | (487) | ||
| Other Investments [Member] | |||||
| Investment [Line Items] | |||||
| Gains realized on sales | 1,312 | 3,481 | 976 | ||
| Other securities, loss realized on sales | (2,354) | (1,601) | (1,076) | ||
| Fair value adjustments, net | $ (11,736) | $ (24,134) | $ (24,016) | ||
| |||||
Premises and Equipment (Narrative) (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Property, Plant and Equipment [Abstract] | |||
| Depreciation expense | $ 42,100,000 | $ 40,000,000.0 | $ 36,100,000 |
| Repairs and maintenance expense | 18,900,000 | 18,300,000 | 18,500,000 |
| Interest Costs Capitalized | $ 0 | $ 2,000 | $ 903,000 |
Premises and Equipment (Schedule of Premises and Equipment) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Gross land, buildings and equipment | $ 1,148,188 | $ 1,108,220 |
| Less accumulated depreciation and amortization | 662,488 | 632,945 |
| Net premises and equipment | 485,700 | 475,275 |
| Land [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross land, buildings and equipment | 86,278 | 86,378 |
| Building and improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross land, buildings and equipment | 778,615 | 750,464 |
| Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross land, buildings and equipment | 251,769 | 240,046 |
| Right of use leased assets [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross land, buildings and equipment | $ 31,526 | $ 31,332 |
Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Finite-Lived Intangible Assets [Line Items] | |||
| Impairment of goodwill | $ 0 | $ 0 | $ 0 |
| Aggregate amortization expense for intangible assets | 1,300 | $ 1,300 | $ 1,400 |
| Easement | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Indefinite-Lived Intangible Assets (Excluding Goodwill) | 3,600 | ||
| Mortgage Servicing Rights | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| (Impairment) Recovery of Intangible Assets, Finite-lived | $ 0 | ||
Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Estimable Useful Lives) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 19,355 | $ 19,223 |
| Accumulated Amortization | (9,644) | (9,191) |
| Valuation allowance | 0 | 0 |
| Finite-Lived Intangible Assets, Net, Total | 9,711 | 10,032 |
| Core Deposit Premium [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 5,550 | 5,550 |
| Accumulated Amortization | (5,427) | (5,286) |
| Valuation allowance | 0 | 0 |
| Finite-Lived Intangible Assets, Net, Total | 123 | 264 |
| Mortgage Servicing Rights | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 13,805 | 13,673 |
| Accumulated Amortization | (4,217) | (3,905) |
| Valuation allowance | 0 | 0 |
| Finite-Lived Intangible Assets, Net, Total | $ 9,588 | $ 9,768 |
Goodwill And Other Intangible Assets (Schedule Of Goodwill Allocated By Operating Segments) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Goodwill [Line Items] | ||
| Goodwill | $ 146,539 | $ 146,539 |
| Retail Banking Segment [Member] | ||
| Goodwill [Line Items] | ||
| Goodwill | 70,721 | 70,721 |
| Commercial Segment [Member] | ||
| Goodwill [Line Items] | ||
| Goodwill | 75,072 | 75,072 |
| Wealth Segment [Member] | ||
| Goodwill [Line Items] | ||
| Goodwill | $ 746 | $ 746 |
Goodwill And Other Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill And Net Other Intangible Assets) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Goodwill [Roll Forward] | |||
| Amortization | $ 1,300 | $ 1,300 | $ 1,400 |
| Goodwill [Member] | |||
| Goodwill [Roll Forward] | |||
| Balance, beginning | 146,539 | 146,539 | |
| Originations | 0 | 0 | |
| Amortization | 0 | 0 | |
| Balance, ending | 146,539 | 146,539 | 146,539 |
| Easement | |||
| Goodwill [Roll Forward] | |||
| Balance, beginning | 3,600 | 3,600 | |
| Originations | 0 | 0 | |
| Amortization | 0 | 0 | |
| Balance, ending | 3,600 | 3,600 | 3,600 |
| Core Deposit Premium [Member] | |||
| Goodwill [Roll Forward] | |||
| Balance, beginning | 264 | 458 | |
| Originations | 0 | 0 | |
| Amortization | (141) | (194) | |
| Balance, ending | 123 | 264 | 458 |
| Mortgage Servicing Rights [Member] | |||
| Goodwill [Roll Forward] | |||
| Balance, beginning | 9,768 | 10,121 | |
| Originations | 953 | 762 | |
| Amortization | (1,133) | (1,115) | |
| Balance, ending | $ 9,588 | $ 9,768 | $ 10,121 |
Goodwill And Other Intangible Assets (Schedule Of Estimated Annual Amortization Expense) (Details) $ in Thousands |
Dec. 31, 2025
USD ($)
|
|---|---|
| Goodwill and Intangible Assets Disclosure [Abstract] | |
| 2026 | $ 1,224 |
| 2027 | 1,050 |
| 2028 | 906 |
| 2029 | 809 |
| 2030 | $ 721 |
Leases (Narrative - Lessee) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Lessee, Lease, Description [Line Items] | ||
| Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Premises and equipment – net | Premises and equipment – net |
| Operating Lease, Liability, Statement of Financial Position [Extensible List] | Other liabilities | Other liabilities |
| Operating Lease, Right-of-Use Asset | $ 30,600 | $ 30,700 |
| Operating Lease, Liability | 31,457 | 31,200 |
| Lease, Cost | $ 8,600 | $ 8,500 |
| Minimum [Member] | ||
| Lessee, Lease, Description [Line Items] | ||
| Lessee, Operating Lease, Renewal Term | 2 months | |
| Maximum [Member] | ||
| Lessee, Lease, Description [Line Items] | ||
| Lessee, Operating Lease, Renewal Term | 26 years | |
Leases (Narrative - Lessor) (Details) |
Dec. 31, 2025 |
|---|---|
| Minimum [Member] | |
| Lessor, Lease, Description [Line Items] | |
| Lessor, Operating Lease, Renewal Term | 1 month |
| Maximum [Member] | |
| Lessor, Lease, Description [Line Items] | |
| Lessor, Operating Lease, Renewal Term | 13 years |
Leases (Schedule of Maturity of Operating Lease Liabilities) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Leases [Abstract] | ||
| 2026 | $ 6,730 | |
| 2027 | 6,468 | |
| 2028 | 5,952 | |
| 2029 | 4,385 | |
| 2030 | 3,268 | |
| After 2030 | 12,091 | |
| Total lease payments | 38,894 | |
| Less: Interest | 7,437 | |
| Present value of lease liabilities | 31,457 | $ 31,200 |
| Legally binding minimum lease payments for operating leases signed but not yet commenced | $ 2,800 |
Leases (Schedule of Operating Lease Term and Discount Rate) (Details) |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Leases [Abstract] | ||
| Weighted-average remaining lease term | 8 years 8 months 12 days | 9 years 2 months 12 days |
| Weighted-average discount rate | 4.38% | 4.32% |
Leases (Schedule of Supplemental Cash Flow Information Related to Operating Leases) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Leases [Abstract] | ||
| Operating cash paid toward lease liabilities | $ 6,575 | $ 6,553 |
| Leased assets obtained in exchange for new lease liabilities | $ 7,695 | $ 9,128 |
Leases (Components of Lease Income) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Operating Lease Income [Line Items] | ||
| Direct financing and sales-type leases | $ 39,771 | $ 37,168 |
| Operating Lease, Lease Income | 18,464 | 16,816 |
| Lease Income, Total | $ 58,235 | 53,984 |
| Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other | |
| Operating Lease Income from Related Party [Member] | ||
| Operating Lease Income [Line Items] | ||
| Operating Lease, Lease Income | $ 0 | $ 78 |
Leases (Net Investment in Sales-type and Direct Financing Leases) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Leases [Abstract] | ||
| Sales-type and Direct Financing Leases, Lease Receivable | $ 780,925 | $ 792,863 |
| Sales-type and Direct Financing Leases, Unguaranteed Residual Asset | 81,818 | 84,063 |
| Net Investment in Lease, before Allowance for Credit Loss, Total | 862,743 | 876,926 |
| Deferred Costs, Leasing, Net | 2,145 | 2,715 |
| Sales-Type And Direct Financing Leases, Lease Receivable, net of deferred origination costs | $ 864,888 | $ 879,641 |
Leases (Schedule of Maturity of Lease Receivables) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Leases [Abstract] | ||
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year One | $ 247,926 | |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Two | 214,284 | |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Three | 174,483 | |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Four | 105,257 | |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Five | 69,465 | |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, after Year Five | 55,100 | |
| Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received | 866,515 | |
| Sales-type and Direct Financing Leases, Lease Receivable, Undiscounted Excess Amount | 85,590 | |
| Sales-type and Direct Financing Leases, Lease Receivable | 780,925 | $ 792,863 |
| Lessor, Operating Lease, Payment to be Received, Year One | 16,344 | |
| Lessor, Operating Lease, Payment to be Received, Year Two | 15,089 | |
| Lessor, Operating Lease, Payment to be Received, Year Three | 14,698 | |
| Lessor, Operating Lease, Payment to be Received, Year Four | 11,033 | |
| Lessor, Operating Lease, Payment to be Received, Year Five | 10,696 | |
| Lessor, Operating Lease, Payment to be Received, after Year Five | 60,255 | |
| Lessor, Operating Lease, Payments to be Received | 128,115 | |
| Lessor, Total Payments to be Received, Next Twelve Months | 264,270 | |
| Lessor, Total Payments to be Received, Two Years | 229,373 | |
| Lessor, Total Payments to be Received, Three Years | 189,181 | |
| Lessor, Total Payments to be Received, Four Years | 116,290 | |
| Lessor, Total Payments to be Received, Five Years | 80,161 | |
| Lessor, Total Payments to be Received, Thereafter | 115,355 | |
| Lessor, Total Payments to be Received | $ 994,630 |
Deposits (Scheduled Maturities Of Total Time Open And Certificates Of Deposit) (Details) $ in Thousands |
Dec. 31, 2025
USD ($)
|
|---|---|
| Deposits [Abstract] | |
| Due in 2026 | $ 2,272,894 |
| Due in 2027 | 98,074 |
| Due in 2028 | 9,298 |
| Due in 2029 | 3,082 |
| Due in 2030 | 3,103 |
| Thereafter | 8 |
| Total | 2,386,459 |
| Aggregate amount of time open and certificates of deposit that exceed the $250,000 FDIC insurance limit | $ 632,600 |
Borrowings (Narrative) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Debt Disclosure [Abstract] | |||
| Short-term repurchase agreement comprised of non-insured customer funds | $ 2,900,000 | ||
| Repurchase Agreements, Accrued Interest | 965 | $ 928 | $ 695 |
| FHLB Advances Outstanding | 0 | ||
| FHLB issued letters of credit | $ 198,400 |
Borrowings (Short-Term Borrowings) (Details) - Federal Funds Purchased And Repurchase Agreements [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Short-term Debt [Line Items] | |||
| Year End Weighted Rate | 1.88% | 2.14% | 2.78% |
| Average Weighted Rate | 2.86% | 3.55% | 3.47% |
| Average Balance Outstanding | $ 2,639,979 | $ 2,621,260 | $ 2,839,633 |
| Maximum Outstanding at any Month End | 2,989,641 | 2,926,758 | 3,133,020 |
| Balance at December 31 | $ 2,989,641 | $ 2,926,758 | $ 2,908,815 |
Income Taxes (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Income Tax Disclosure [Abstract] | |||
| Effective income tax rate reconciliation, at federal statutory income tax rate | 21.00% | 21.00% | 21.00% |
| Unrecognized Tax Benefits | $ 1,220 | $ 1,224 | $ 1,270 |
| Unrecognized tax benefits impact the effective tax rate | $ 1,000 | $ 1,000 | |
Income Taxes (Schedule Of Components Of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Income Tax Disclosure [Abstract] | |||
| U.S. federal, Current | $ 131,851 | $ 132,197 | $ 124,787 |
| State and local, Current | 17,730 | 13,483 | 17,161 |
| Current, income tax expense (benefit) | 149,581 | 145,680 | 141,948 |
| U.S. federal, Deferred | 10,482 | (845) | (6,228) |
| State and local, Deferred | 1,073 | 254 | (1,171) |
| Deferred, income tax expense (benefit) | 11,555 | (591) | (7,399) |
| U.S. federal, Total | 142,333 | 131,352 | 118,559 |
| State and local, Total | 18,803 | 13,737 | 15,990 |
| Total income tax expense | $ 161,136 | $ 145,089 | $ 134,549 |
Income Taxes (Components Of Income Tax Expense Recorded Directly To Stockholders Equity) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Income Tax Disclosure [Abstract] | |||
| Unrealized gain (loss) on securities available for sale | $ 85,952 | $ 57,359 | $ 69,972 |
| Components of income Tax Recorded Directly to Equity, Change in Fair Value of Cash Flow Hedge | (3,023) | (13,704) | (6,017) |
| Accumulated pension (benefit) loss | 811 | 512 | 1,197 |
| Income tax expense (benefit) allocated to stockholders’ equity | $ 83,740 | $ 44,167 | $ 65,152 |
Income Taxes (Components Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Unrealized losses on available-for-sale securities | $ 161,691 | $ 247,643 |
| Loans, principally due to allowance for credit losses | 47,422 | 43,450 |
| Unearned fee income | 10,430 | 10,858 |
| Equity-based compensation | 8,749 | 8,364 |
| Deferred compensation | 8,433 | 8,477 |
| Deferred Tax Assets, Derivative Instruments | 8,301 | 5,630 |
| Accrued expenses | 7,785 | 10,124 |
| Deferred tax assets, Other | 367 | 497 |
| Total deferred tax assets | 253,178 | 335,043 |
| Equipment lease financing | 97,819 | 97,042 |
| Land, buildings and equipment | 28,890 | 23,359 |
| Accretion on investment securities | 9,092 | 4,203 |
| Intangible assets | 7,702 | 7,596 |
| Private equity investments | 6,676 | 5,446 |
| Deferred tax liabilities, Other | 5,643 | 4,746 |
| Total deferred tax liabilities | 155,822 | 142,392 |
| Net deferred tax assets (liabilities) | $ 97,356 | $ 192,651 |
Income Taxes (Schedule Of Company's Actual Income Tax Expense) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Income Tax Disclosure [Abstract] | |||
| Computed “expected” tax expense | $ 152,751 | $ 140,998 | $ 128,438 |
| Effective Income Tax Rate Reconciliation, Tax Credit, Amount | (1,893) | (1,431) | (1,478) |
| Tax-exempt interest, net of cost to carry | (6,983) | (6,892) | (7,002) |
| Other Nontaxable or nondeductible items | 5,105 | 4,043 | 4,292 |
| Other | (2,732) | (2,444) | (2,349) |
| State and local income taxes, net of federal tax benefit | 14,855 | 10,852 | 12,633 |
| Changes in Unrecognized Tax Benefits | 33 | (37) | 15 |
| Total income tax expense | $ 161,136 | $ 145,089 | $ 134,549 |
| Tax Jurisdiction of Domicile [Extensible Enumeration] | UNITED STATES | ||
| Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 21.00% |
| Effective Income Tax Rate Reconciliation, Tax Credit, Percent | (0.26%) | (0.21%) | (0.24%) |
| Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent | (0.96%) | (1.03%) | (1.15%) |
| Effective Income Tax Rate Reconciliation, Other nontaxable or nondeductible items, Percent | 0.70% | 0.60% | 0.70% |
| Effective Income Tax Rate Reconciliation, Other Adjustments, Percent | (0.37%) | (0.36%) | (0.38%) |
| Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent | 2.04% | 1.62% | 2.07% |
| Effective Income Tax Rate Reconciliation, Changes in Unrecognized Tax Benefits, Percent | 0.00% | (0.01%) | 0.00% |
| Effective Income Tax Rate Reconciliation, Percent | 22.15% | 21.61% | 22.00% |
Income Taxes (Schedule Of Accrued Liability For Unrecognized Tax Benefit) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Reconciliation of Unrecognized Tax Benefits [Roll Forward] | ||
| Unrecognized tax benefits at beginning of year | $ 1,224 | $ 1,270 |
| Gross increases – tax positions in prior period | 46 | 8 |
| Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions | (5) | (2) |
| Gross increases – current-period tax positions | 187 | 295 |
| Lapse of statute of limitations | (232) | (347) |
| Unrecognized tax benefits at end of year | $ 1,220 | $ 1,224 |
Income Taxes (Schedule of Income Taxes Paid) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Income Tax Disclosure [Abstract] | |||
| U.S. federal | $ 145,522 | $ 116,528 | $ 113,536 |
| State and local | 17,390 | 9,601 | 17,421 |
| Income tax payments, net | $ 162,912 | $ 126,129 | $ 130,957 |
Employee Benefit Plans (Narrative) (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |||
| Defined benefit plan, discretionary contribution by employer | $ 0 | $ 0 | $ 0 |
| Minimum Required Contribution, Next Fiscal Year | 0 | ||
| Contributions to the CERP | 191,000 | $ 185,000 | $ 806,000 |
| Increase (Decrease) in Obligation, Pension Benefits | $ (1,900,000) | ||
| Determination of benefit obligation at year end, Discount rate | 5.15% | 5.27% | 4.98% |
| Accumulated benefit obligation | $ 87,400,000 | $ 89,800,000 | |
| Expected long-term rate of return on pension plan assets | 4.75% | 4.75% | 4.75% |
| Annualized 10-year return for pension plan | 5.00% | ||
| Rate of return | 8.00% | 2.90% | |
| Expected pension expense for the upcoming fiscal year | $ 1,100,000 | ||
| Pension expense | $ 1,500,000 | ||
| Fixed Income Securities [Member] | |||
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |||
| Long-term investment target mix | 100.00% | ||
Employee Benefit Plans (Employee Benefits Charged To Operating Expenses) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Total employee benefits | $ 97,127 | $ 93,600 | $ 91,086 |
| Payroll Taxes [Member] | |||
| Total employee benefits | 33,471 | 32,723 | 31,507 |
| Medical Plans [Member] | |||
| Total employee benefits | 38,705 | 36,860 | 36,277 |
| 401K Plan [Member] | |||
| Total employee benefits | 20,969 | 20,227 | 19,216 |
| Pension Plans [Member] | |||
| Total employee benefits | 542 | 399 | 499 |
| Other [Member] | |||
| Total employee benefits | $ 3,440 | $ 3,391 | $ 3,587 |
Employee Benefit Plans (Components Of The Net Pension Cost) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] | |||
| Service cost-benefits earned during the year | $ 542 | $ 399 | $ 499 |
| Interest cost on projected benefit obligation | 4,321 | 4,377 | 4,615 |
| Expected return on plan assets | (3,939) | (4,139) | (4,051) |
| Amortization of prior service cost | 0 | (181) | (271) |
| Amortization of unrecognized net (gain) loss | 571 | 892 | 1,464 |
| Net periodic pension cost | $ 1,495 | $ 1,348 | $ 2,256 |
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Salaries and employee benefits | ||
| Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Salaries and employee benefits | ||
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration] | Salaries and employee benefits | ||
| Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Salaries and employee benefits | ||
Employee Benefit Plans (Summary Of Pension Plans Funded Status) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] | |||
| Projected benefit obligation at prior valuation date | $ 89,813 | $ 93,949 | |
| Service cost | 542 | 399 | $ 499 |
| Interest cost | 4,321 | 4,377 | 4,615 |
| Defined Benefit Plan, Benefit Obligation, Benefits Paid | (7,154) | (6,939) | |
| Actuarial (gain) loss | (152) | (1,973) | |
| Projected benefit obligation at valuation date | 87,370 | 89,813 | 93,949 |
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | |||
| Fair value of plan assets at prior valuation date | 86,593 | 89,842 | |
| Actual return on plan assets | 6,463 | 3,505 | |
| Employer contributions | 191 | 185 | |
| Benefits paid | (7,154) | (6,939) | |
| Fair value of plan assets at valuation date | 86,093 | 86,593 | $ 89,842 |
| Funded status and net amount recognized at valuation date | $ (1,277) | $ (3,220) | |
Employee Benefit Plans (Schedule Of Amounts Not Yet Reflected In Net Periodic Benefit Cost And Included In Accumulated Other Comprehensive Income (Loss), Pre-Tax Basis) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Retirement Benefits [Abstract] | |||
| Accumulated gain (loss) | $ (12,826) | $ (16,073) | |
| Accumulated other comprehensive income (loss) | (12,826) | (16,073) | |
| Cumulative employer contributions in excess of net periodic benefit cost | 11,549 | 12,853 | |
| Net amount recognized as an accrued benefit liability on the December 31 balance sheet | (1,277) | (3,220) | |
| Net gain (loss) arising during period | 2,676 | 1,338 | |
| Amortization of net (gain) loss | 571 | 892 | $ 1,464 |
| Amortization of prior service cost | 0 | (181) | $ (271) |
| Total recognized in other comprehensive income (loss) | 3,247 | 2,049 | |
| Total income (expense) recognized in net periodic pension cost and other comprehensive income | $ 1,752 | $ 702 | |
Employee Benefit Plans (Assumptions On A Weighted Average Basis, Used In Accounting For Plans) (Details) |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2025
Rate
|
Dec. 31, 2024
Rate
|
Dec. 31, 2023
Rate
|
|
| Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | |||
| Determination of benefit obligation at year end, Discount rate | 5.15% | 5.27% | 4.98% |
| Determination of benefit obligation at year end, Assumed credit on cash balance accounts | 5.00% | 5.00% | 5.00% |
| Determination of net periodic benefit cost for year ended, Discount rate | 5.46% | 4.93% | 5.19% |
| Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Effective Rate of Interest | 5.15% | 4.84% | 5.09% |
| Determination of net periodic benefit cost for year ended, Long-term rate of return on assets | 4.75% | 4.75% | 4.75% |
| Determination of net periodic benefit cost for year ended, Assumed credit on cash balance accounts | 5.00% | 5.00% | 5.00% |
Employee Benefit Plans (Fair Value Of Pension Plan Assets By Asset Category) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| U.S. government obligations | $ 3,279,100 | $ 2,555,252 | ||||||||||||
| Government-sponsored enterprise obligations | 44,712 | 42,849 | ||||||||||||
| State and municipal obligations | 664,733 | 742,891 | ||||||||||||
| Agency mortgage-backed securities | 3,223,105 | 3,444,891 | ||||||||||||
| Non-agency mortgage-backed securities | 435,688 | 568,689 | ||||||||||||
| Asset-backed securities | 1,262,045 | 1,557,015 | ||||||||||||
| Pension Plans [Member] | ||||||||||||||
| U.S. government obligations | 22,420 | 12,072 | ||||||||||||
| Government-sponsored enterprise obligations | [1] | 1,018 | 991 | |||||||||||
| State and municipal obligations | 2,550 | 3,513 | ||||||||||||
| Agency mortgage-backed securities | [2] | 1,837 | 2,026 | |||||||||||
| Non-agency mortgage-backed securities | 2,041 | 2,202 | ||||||||||||
| Asset-backed securities | 4,050 | 5,171 | ||||||||||||
| Corporate bonds | [3] | 44,330 | 45,526 | |||||||||||
| Mutual funds | 7,847 | [4] | 6,462 | [5] | ||||||||||
| Common stocks | [5] | 7,075 | ||||||||||||
| International developed markets | [5] | 1,353 | ||||||||||||
| Emerging markets | [5] | 202 | ||||||||||||
| Total | 86,093 | 86,593 | ||||||||||||
| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||||||||||||
| U.S. government obligations | 3,279,100 | 2,555,252 | ||||||||||||
| Government-sponsored enterprise obligations | 0 | 0 | ||||||||||||
| State and municipal obligations | 0 | 0 | ||||||||||||
| Agency mortgage-backed securities | 0 | 0 | ||||||||||||
| Non-agency mortgage-backed securities | 0 | 0 | ||||||||||||
| Asset-backed securities | 0 | 0 | ||||||||||||
| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Pension Plans [Member] | ||||||||||||||
| U.S. government obligations | 22,420 | 12,072 | ||||||||||||
| Government-sponsored enterprise obligations | [1] | 0 | 0 | |||||||||||
| State and municipal obligations | 0 | 0 | ||||||||||||
| Agency mortgage-backed securities | [2] | 0 | 0 | |||||||||||
| Non-agency mortgage-backed securities | 0 | 0 | ||||||||||||
| Asset-backed securities | 0 | 0 | ||||||||||||
| Corporate bonds | [3] | 0 | 0 | |||||||||||
| Mutual funds | 7,847 | [4] | 6,462 | [5] | ||||||||||
| Common stocks | [5] | 7,075 | ||||||||||||
| International developed markets | [5] | 1,353 | ||||||||||||
| Emerging markets | [5] | 202 | ||||||||||||
| Total | 30,267 | 27,164 | ||||||||||||
| Significant Other Observable Inputs (Level 2) [Member] | ||||||||||||||
| U.S. government obligations | 0 | 0 | ||||||||||||
| Government-sponsored enterprise obligations | 44,712 | 42,849 | ||||||||||||
| State and municipal obligations | 663,781 | 741,927 | ||||||||||||
| Agency mortgage-backed securities | 3,223,105 | 3,444,891 | ||||||||||||
| Non-agency mortgage-backed securities | 435,688 | 568,689 | ||||||||||||
| Asset-backed securities | 1,262,045 | 1,557,015 | ||||||||||||
| Significant Other Observable Inputs (Level 2) [Member] | Pension Plans [Member] | ||||||||||||||
| U.S. government obligations | 0 | 0 | ||||||||||||
| Government-sponsored enterprise obligations | [1] | 1,018 | 991 | |||||||||||
| State and municipal obligations | 2,550 | 3,513 | ||||||||||||
| Agency mortgage-backed securities | [2] | 1,837 | 2,026 | |||||||||||
| Non-agency mortgage-backed securities | 2,041 | 2,202 | ||||||||||||
| Asset-backed securities | 4,050 | 5,171 | ||||||||||||
| Corporate bonds | [3] | 44,330 | 45,526 | |||||||||||
| Mutual funds | 0 | [4] | 0 | [5] | ||||||||||
| Common stocks | [5] | 0 | ||||||||||||
| International developed markets | [5] | 0 | ||||||||||||
| Emerging markets | [5] | 0 | ||||||||||||
| Total | 55,826 | 59,429 | ||||||||||||
| Significant Unobservable Inputs (Level 3) [Member] | ||||||||||||||
| U.S. government obligations | 0 | 0 | ||||||||||||
| Government-sponsored enterprise obligations | 0 | 0 | ||||||||||||
| State and municipal obligations | 952 | 964 | ||||||||||||
| Agency mortgage-backed securities | 0 | 0 | ||||||||||||
| Non-agency mortgage-backed securities | 0 | 0 | ||||||||||||
| Asset-backed securities | 0 | 0 | ||||||||||||
| Significant Unobservable Inputs (Level 3) [Member] | Pension Plans [Member] | ||||||||||||||
| U.S. government obligations | 0 | 0 | ||||||||||||
| Government-sponsored enterprise obligations | [1] | 0 | 0 | |||||||||||
| State and municipal obligations | 0 | 0 | ||||||||||||
| Agency mortgage-backed securities | [2] | 0 | 0 | |||||||||||
| Non-agency mortgage-backed securities | 0 | 0 | ||||||||||||
| Asset-backed securities | 0 | 0 | ||||||||||||
| Corporate bonds | [3] | 0 | 0 | |||||||||||
| Mutual funds | 0 | [4] | 0 | [5] | ||||||||||
| Common stocks | [5] | 0 | ||||||||||||
| International developed markets | [5] | 0 | ||||||||||||
| Emerging markets | [5] | 0 | ||||||||||||
| Total | $ 0 | $ 0 | ||||||||||||
| ||||||||||||||
Employee Benefit Plans (Future Benefit Payments) (Details) $ in Thousands |
Dec. 31, 2025
USD ($)
|
|---|---|
| Defined Benefit Plan, Expected Future Benefit Payment [Abstract] | |
| 2026 | $ 7,789 |
| 2027 | 7,578 |
| 2028 | 7,473 |
| 2029 | 7,348 |
| 2030 | 7,096 |
| 2031 - 2035 | $ 31,412 |
Stock-Based Compensation and Directors Stock Purchase Plan (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Feb. 08, 2022 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Remaining number of shares available for issuance under the plan | 6,079,955 | |||
| Stock-based compensation | $ 17.3 | $ 17.0 | $ 17.1 | |
| Total tax benefit recognized from compensation arrangements | 3.2 | 3.2 | 3.2 | |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 34.3 | |||
| Compensation cost is expected to be recognized over a weighted average period, years | 3 years | |||
| Common stock dividend rate percentage | 5.00% | |||
| Nonvested Stock Award [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Fair value of shares vested during the period | $ 17.1 | $ 13.9 | $ 20.9 | |
| Nonvested Stock Award [Member] | Minimum [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock awards vesting period (in years) | 4 years | |||
| Nonvested Stock Award [Member] | Maximum [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock awards vesting period (in years) | 7 years | |||
| Stock Appreciation Rights (SARs) [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock awards vesting period (in years) | 4 years | |||
| Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period | 10 years | |||
| Directors Stock Purchase Plan [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Remaining number of shares available for issuance under the plan | 50,810 | |||
| Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized | 150,000 | |||
| Number of shares purchased under stock option plan | 32,330 | 30,755 | ||
| Average price of shares purchased under stock option plan | $ 57.53 | $ 55.59 | ||
Stock-Based Compensation and Directors Stock Purchase Plan (Summary Of The Status Of Nonvested Share Awards) (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
$ / shares
shares
| |
| Nonvested Share Awards [Roll Forward] | |
| Nonvested, share awards, beginning balance | shares | 1,315,029 |
| Granted, Shares | shares | 315,896 |
| Vested, Shares | shares | (280,218) |
| Forfeited, Shares | shares | (44,729) |
| Nonvested, share awards, ending balance | shares | 1,305,978 |
| Nonvested Weighted Average Grant Date Fair Value [Roll Forward] | |
| Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares | $ 52.77 |
| Granted, Weighted Average Grant Date Fair Value | $ / shares | 61.91 |
| Vested, Weighted Average Grant Date Fair Value | $ / shares | 52.00 |
| Forfeited, Weighted Average Grant Date Fair Value | $ / shares | 54.11 |
| Nonvested , Weighted Average Grant Date Fair Value, Ending Balance | $ / shares | $ 55.11 |
Stock-Based Compensation and Directors Stock Purchase Plan (Summary Of SAR Activity) (Details) $ / shares in Units, $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
USD ($)
$ / shares
shares
| |
| Stock Appreciation Rights, Shares [Roll Forward] | |
| Outstanding, Shares, Beginning Balance | shares | 883,499 |
| Granted, Shares | shares | 40,629 |
| Forfeited, Shares | shares | (3,118) |
| Expired, Shares | shares | (2,034) |
| Exercised, Shares | shares | (68,020) |
| Outstanding, Shares, Ending Balance | shares | 850,956 |
| Exercisable, Shares, Ending Balance | shares | 638,348 |
| Stock Appreciation Rights, Weighted Average Exercise Price [Roll Forward] | |
| Outstanding, Weighted Average Exercise Price, Beginning Balance | $ / shares | $ 46.57 |
| Share based compensation arrangement by share based payment award equity instruments other than options grants in period weighted average exercise price | $ / shares | 61.84 |
| Share-based Compensation Arrangement by Share-based Payment Award, Other than Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | $ / shares | 53.00 |
| Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expired In Period Weighted Average Exercise Price | $ / shares | 52.96 |
| Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercised In Period Weighted Average Exercise Price | $ / shares | 37.46 |
| Outstanding, Weighted Average Exercise Price, Ending Balance | $ / shares | 47.99 |
| Exercisable, Weighted Average Exercise Price, Ending Balance | $ / shares | $ 46.11 |
| Outstanding, Weighted Average Remaining Contractual Term (in years) | 4 years 9 months 18 days |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding | $ | $ 5,461 |
| Exercisable, Weighted Average Remaining Contractual Term (in years) | 3 years 8 months 12 days |
| Exercisable, Aggregate Intrinsic Value, Ending Balance | $ | $ 4,973 |
Stock-Based Compensation and Directors Stock Purchase Plan Share Based Compensation Valuation Assumptions [Table] (Details) - Share-based payment award, valuation model assumptions - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Schedule Of Share Based Payment Award Stock Options Valuation Assumptions [Line Items] | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 18.78 | $ 13.50 | $ 16.10 |
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | 1.70% | 2.10% | 1.60% |
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | 29.60% | 29.30% | 27.90% |
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | 4.10% | 4.20% | 3.90% |
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 6 years | 6 years | 5 years 9 months 18 days |
Stock-Based Compensation and Directors Stock Purchase Plan Stock-Based Compensation and Directors Stock Purchase Plan (Additional Information About Stock Options and SARs Exercises) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Share-Based Payment Arrangement, Noncash Expense [Abstract] | |||
| Intrinsic value of options and SARs exercised | $ 1,647 | $ 8,409 | $ 1,723 |
| Tax benefit realized from options and SARs exercised | $ 244 | $ 1,276 | $ 362 |
Accumulated Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|||||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||||
| Beginning balance | $ (758,911) | $ (891,412) | |||||||
| Other comprehensive income (loss) before reclassifications to current earnings | 335,053 | (8,927) | |||||||
| Amounts reclassified to current earnings from accumulated other comprehensive income | (92) | 185,595 | |||||||
| Current period other comprehensive income (loss), before tax | 334,961 | 176,668 | |||||||
| Income tax (expense) benefit | (83,740) | (44,167) | |||||||
| Current period other comprehensive income (loss), net of tax | 251,221 | 132,501 | $ 195,452 | ||||||
| Ending balance | (507,690) | (758,911) | (891,412) | ||||||
| Unrealized Gains (Losses) on Securities (1) | |||||||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||||
| Beginning balance | [1] | (742,926) | (915,001) | ||||||
| Other comprehensive income (loss) before reclassifications to current earnings | [1] | 335,397 | 33,151 | ||||||
| Amounts reclassified to current earnings from accumulated other comprehensive income | [1] | 8,410 | 196,283 | ||||||
| Current period other comprehensive income (loss), before tax | [1] | 343,807 | 229,434 | ||||||
| Income tax (expense) benefit | [1] | (85,952) | (57,359) | ||||||
| Current period other comprehensive income (loss), net of tax | [1] | 257,855 | 172,075 | ||||||
| Ending balance | [1] | (485,071) | (742,926) | (915,001) | |||||
| Pension Loss | |||||||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||||
| Beginning balance | (12,059) | (13,596) | |||||||
| Other comprehensive income (loss) before reclassifications to current earnings | 2,676 | 1,338 | |||||||
| Amounts reclassified to current earnings from accumulated other comprehensive income | 571 | 711 | |||||||
| Current period other comprehensive income (loss), before tax | 3,247 | 2,049 | |||||||
| Income tax (expense) benefit | (811) | (512) | |||||||
| Current period other comprehensive income (loss), net of tax | 2,436 | 1,537 | |||||||
| Ending balance | (9,623) | (12,059) | (13,596) | ||||||
| Unrealized Gains (Losses) on Cash Flow Hedge Derivatives (2) | |||||||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||||
| Beginning balance | (3,926) | [2] | 37,185 | ||||||
| Other comprehensive income (loss) before reclassifications to current earnings | [2] | (3,020) | (43,416) | ||||||
| Amounts reclassified to current earnings from accumulated other comprehensive income | [2] | (9,073) | (11,399) | ||||||
| Current period other comprehensive income (loss), before tax | [2] | (12,093) | (54,815) | ||||||
| Income tax (expense) benefit | [2] | 3,023 | 13,704 | ||||||
| Current period other comprehensive income (loss), net of tax | [2] | (9,070) | (41,111) | ||||||
| Ending balance | $ (12,996) | [2] | $ (3,926) | [2] | $ 37,185 | ||||
| |||||||||
Segments (Narrative) (Details) $ in Millions |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2025
USD ($)
Operating_Segments
Locations
|
Dec. 31, 2023
USD ($)
|
|
| Segment Reporting [Abstract] | ||
| Number of operating segments | Operating_Segments | 3 | |
| Number of Reportable Segments | Operating_Segments | 3 | |
| Number Of Branch Locations | Locations | 140 | |
| Intersegment Revenues | $ | $ 0 | |
| Segment Reclassification - Loans | $ | $ 1,900 |
Segments (Schedule Of Financial Information By Segment) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|||
| Segment Reporting Information [Line Items] | |||||
| Net interest income | $ 1,111,858 | $ 1,040,246 | $ 998,129 | ||
| Provision for loan losses | (56,138) | (32,903) | (35,451) | ||
| Non-interest income | 652,281 | 615,553 | 573,045 | ||
| Investment securities gains (losses), net | [1] | 3,660 | 7,823 | 14,985 | |
| Non-interest expense | (979,826) | (951,229) | (930,982) | ||
| Income before income taxes | 731,835 | 679,490 | 619,726 | ||
| Segment Reporting, Reconciling Item, Corporate Nonsegment | |||||
| Segment Reporting Information [Line Items] | |||||
| Net interest income | (16,063) | (75,479) | (175,893) | ||
| Provision for loan losses | (15,467) | 6,005 | (4,451) | ||
| Non-interest income | 6,607 | 9,943 | 8,712 | ||
| Investment securities gains (losses), net | 3,660 | 7,823 | 14,985 | ||
| Non-interest expense | (45,548) | (59,072) | (54,861) | ||
| Income before income taxes | (66,811) | (110,780) | (211,508) | ||
| Retail Banking Segment [Member] | Operating Segments | |||||
| Segment Reporting Information [Line Items] | |||||
| Net interest income | 504,475 | 511,643 | 552,215 | ||
| Provision for loan losses | (38,811) | (37,610) | (27,458) | ||
| Non-interest income | 98,543 | 99,896 | 97,029 | ||
| Investment securities gains (losses), net | 0 | 0 | 0 | ||
| Non-interest expense | (337,732) | (328,328) | (323,582) | ||
| Income before income taxes | 226,475 | 245,601 | 298,204 | ||
| Commercial Segment [Member] | Operating Segments | |||||
| Segment Reporting Information [Line Items] | |||||
| Net interest income | 532,786 | 516,263 | 522,009 | ||
| Provision for loan losses | (1,838) | (1,446) | (3,514) | ||
| Non-interest income | 280,844 | 262,238 | 249,063 | ||
| Investment securities gains (losses), net | 0 | 0 | 0 | ||
| Non-interest expense | (430,291) | (405,180) | (395,098) | ||
| Income before income taxes | 381,501 | 371,875 | 372,460 | ||
| Wealth Segment [Member] | Operating Segments | |||||
| Segment Reporting Information [Line Items] | |||||
| Net interest income | 90,660 | 87,819 | 99,798 | ||
| Provision for loan losses | (22) | 148 | (28) | ||
| Non-interest income | 266,287 | 243,476 | 218,241 | ||
| Investment securities gains (losses), net | 0 | 0 | 0 | ||
| Non-interest expense | (166,255) | (158,649) | (157,441) | ||
| Income before income taxes | $ 190,670 | $ 172,794 | $ 160,570 | ||
| |||||
Segments Segments (Segment Balance Sheet Data) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Segment Reporting Information [Line Items] | ||
| Average Assets | $ 31,666,603 | $ 30,685,280 |
| Average Loans, including held for sale | 17,476,683 | 17,089,597 |
| Average Goodwill and other intangible assets | 159,976 | 160,422 |
| Average Deposits | 25,037,689 | 24,507,007 |
| Segment Reporting, Reconciling Item, Corporate Nonsegment | ||
| Segment Reporting Information [Line Items] | ||
| Average Assets | 13,699,433 | 13,124,109 |
| Average Loans, including held for sale | 7,325 | 7,406 |
| Average Goodwill and other intangible assets | 3,600 | 3,600 |
| Average Deposits | (77,764) | (35,642) |
| Retail Banking Segment [Member] | Operating Segments | ||
| Segment Reporting Information [Line Items] | ||
| Average Assets | 3,880,476 | 3,978,303 |
| Average Loans, including held for sale | 3,732,326 | 3,830,310 |
| Average Goodwill and other intangible assets | 80,497 | 80,889 |
| Average Deposits | 12,313,189 | 12,275,888 |
| Commercial Segment [Member] | Operating Segments | ||
| Segment Reporting Information [Line Items] | ||
| Average Assets | 11,908,485 | 11,617,602 |
| Average Loans, including held for sale | 11,576,878 | 11,302,754 |
| Average Goodwill and other intangible assets | 75,133 | 75,187 |
| Average Deposits | 10,274,702 | 9,887,803 |
| Wealth Segment [Member] | Operating Segments | ||
| Segment Reporting Information [Line Items] | ||
| Average Assets | 2,178,209 | 1,965,266 |
| Average Loans, including held for sale | 2,160,154 | 1,949,127 |
| Average Goodwill and other intangible assets | 746 | 746 |
| Average Deposits | $ 2,527,562 | $ 2,378,958 |
Common Stock (Narrative) (Details) - $ / shares |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Oct. 01, 2025 |
|
| Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract] | ||||
| Common stock dividend rate percentage | 5.00% | |||
| Common stock, par value | $ 5 | $ 5 | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) | 296,000 | 405,000 | 400,000 | |
| Shares available for purchase under the current Board authorization | 5,000,000 | |||
| Share Repurchase Program, Remaining Authorized, Number of Shares | 3,186,721 | |||
Common Stock (Summary Of Components Used To Calculate Basic And Diluted Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] | |||
| Basic income per common share (in dollars per share) | $ 4.04 | $ 3.69 | $ 3.30 |
| Diluted income per common share (in dollars per share) | $ 4.04 | $ 3.69 | $ 3.30 |
| Basic Income Per Common Share [Member] | |||
| Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] | |||
| Net income attributable to Commerce Bancshares, Inc. | $ 566,251 | $ 526,331 | $ 477,060 |
| Less income allocated to nonvested restricted stockholders | 5,386 | 4,914 | 4,241 |
| Net income available to common stockholders | $ 560,865 | $ 521,417 | $ 472,819 |
| Weighted average common shares outstanding | 138,773 | 141,248 | 143,239 |
| Basic income per common share (in dollars per share) | $ 4.04 | $ 3.69 | $ 3.30 |
| Diluted Income Per Common Share [Member] | |||
| Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] | |||
| Net Income (Loss) Available to Common Stockholders, Diluted | $ 566,251 | $ 526,331 | $ 477,060 |
| Less income allocated to nonvested restricted stockholders | 5,383 | 4,910 | 4,237 |
| Net income available to common stockholders | $ 560,868 | $ 521,421 | $ 472,823 |
| Weighted average common shares outstanding | 138,773 | 141,248 | 143,239 |
| Net effect of the assumed exercise of stock-based awards -- based on the treasury stock method using the average market price for the respective periods | 127 | 175 | 165 |
| Weighted average diluted common shares outstanding | 138,900 | 141,423 | 143,404 |
| Diluted income per common share (in dollars per share) | $ 4.04 | $ 3.69 | $ 3.30 |
Common and Preferred Stock Common and Preferred Stock (Schedule of Activity in the Outstanding Shares of the Company's Common Stock) (Details) - Common Stock [Member] - shares shares in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Increase (Decrease) in Common Stock [Roll Forward] | |||
| Shares outstanding, beginning balance | 134,152 | 130,176 | 124,999 |
| Awards and sales under employee and director plans | 316 | 453 | 348 |
| 5% stock dividend | 6,578 | 6,396 | 6,201 |
| Other purchases of treasury stock | (3,609) | (2,875) | (1,355) |
| Other | 50 | 2 | (17) |
| Shares outstanding, ending balance | 137,487 | 134,152 | 130,176 |
Regulatory Capital Requirements (Schedule Of Capital Amounts And Ratios On Consolidated Basis) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Total Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Ratio | 10.00% | |
| Tier I Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Ratio | 8.00% | |
| Tier I Common Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Ratio | 6.50% | |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Well-Capitalized Capital Requirement Ratio | 5.00% | |
| Commerce Bancshares, Inc. (Consolidated) [Member] | ||
| Total Capital (to risk-weighted assets), Actual Amount | $ 4,353,905 | $ 4,108,270 |
| Total Capital (to risk-weighted assets), Actual Ratio | 18.16% | 17.48% |
| Total Capital (to risk-weighted assets), Minimum Capital Requirement Amount | $ 1,917,661 | $ 1,880,032 |
| Total Capital (to risk-weighted assets), Minimum Capital Requirement Ratio | 8.00% | 8.00% |
| Tier I Capital (to risk-weighted assets), Actual Amount | $ 4,156,776 | $ 3,926,446 |
| Tier I Capital (to risk-weighted assets), Actual Ratio | 17.34% | 16.71% |
| Tier I Capital (to risk-weighted assets), Minimum Capital Requirement Amount | $ 1,438,246 | $ 1,410,024 |
| Tier I Capital (to risk-weighted assets), Minimum Capital Requirement Ratio | 6.00% | 6.00% |
| Tier I Common Capital (to risk-weighted assets), Actual Amount | $ 4,156,776 | $ 3,926,446 |
| Tier I Common Capital (to rIsk-weighted assets), Actual Rato | 17.34% | 16.71% |
| Tier I Common Capital (to risk-weighted assets), Minimum Capital Requirement Amount | $ 1,078,684 | $ 1,057,518 |
| Tier I Common Capital (to risk-weighted assets), Minimum Capital Requirement Ratio | 4.50% | 4.50% |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Actual Amount | $ 4,156,776 | $ 3,926,446 |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Actual Ratio | 12.65% | 12.26% |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Minimum Capital Requirement Amount | $ 1,314,066 | $ 1,281,116 |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Minimum Capital Requirement Ratio | 4.00% | 4.00% |
| Commerce Bank [Member] | ||
| Total Capital (to risk-weighted assets), Actual Amount | $ 3,833,780 | $ 3,484,249 |
| Total Capital (to risk-weighted assets), Actual Ratio | 16.15% | 14.98% |
| Total Capital (to risk-weighted assets), Minimum Capital Requirement Amount | $ 1,899,151 | $ 1,861,121 |
| Total Capital (to risk-weighted assets), Minimum Capital Requirement Ratio | 8.00% | 8.00% |
| Total Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Amount | $ 2,373,939 | $ 2,326,401 |
| Total Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Ratio | 10.00% | 10.00% |
| Tier I Capital (to risk-weighted assets), Actual Amount | $ 3,636,651 | $ 3,302,425 |
| Tier I Capital (to risk-weighted assets), Actual Ratio | 15.32% | 14.20% |
| Tier I Capital (to risk-weighted assets), Minimum Capital Requirement Amount | $ 1,424,364 | $ 1,395,841 |
| Tier I Capital (to risk-weighted assets), Minimum Capital Requirement Ratio | 6.00% | 6.00% |
| Tier I Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Amount | $ 1,899,151 | $ 1,861,121 |
| Tier I Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Ratio | 8.00% | 8.00% |
| Tier I Common Capital (to risk-weighted assets), Actual Amount | $ 3,636,651 | $ 3,302,425 |
| Tier I Common Capital (to rIsk-weighted assets), Actual Rato | 15.32% | 14.20% |
| Tier I Common Capital (to risk-weighted assets), Minimum Capital Requirement Amount | $ 1,068,273 | $ 1,046,880 |
| Tier I Common Capital (to risk-weighted assets), Minimum Capital Requirement Ratio | 4.50% | 4.50% |
| Tier I Common Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Amount | $ 1,543,061 | $ 1,512,161 |
| Tier I Common Capital (to risk-weighted assets), Well-Capitalized Capital Requirement Ratio | 6.50% | 6.50% |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Actual Amount | $ 3,636,651 | $ 3,302,425 |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Actual Ratio | 11.13% | 10.36% |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Minimum Capital Requirement Amount | $ 1,307,252 | $ 1,274,648 |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Minimum Capital Requirement Ratio | 4.00% | 4.00% |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Well-Capitalized Capital Requirement Amount | $ 1,634,065 | $ 1,593,310 |
| Tier I Capital (to adjusted quarterly average assets) (Leverage Ratio), Well-Capitalized Capital Requirement Ratio | 5.00% | 5.00% |
Revenue from Contracts with Customers Revenue from Contracts with Customers (Narrative) (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
Rate
| |
| Revenue from Contract with Customer [Abstract] | |
| Percent of Revenue not in scope of ASC 606 | 63.00% |
| Commercial Segment [Member] | |
| Revenue, Major Customer [Line Items] | |
| Corporate card fee revenue by segment | Commercial |
| Merchant fee revenue by segment | Commercial |
| Deposit fee revenue by segment | 71.00% |
| Retail Banking Segment [Member] | |
| Revenue, Major Customer [Line Items] | |
| Debit card fee revenue by segment | majority |
| Credit card fee revenue by segment | majority |
| Wealth Segment [Member] | |
| Revenue, Major Customer [Line Items] | |
| Trust fee revenue by segment | Wealth |
| Consumer brokerage services revenue by segment | Nearly all |
Revenue from Contracts with Customers Revenue from Contracts with Customers (Schedule of Disaggregation of Revenue) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|||
| Disaggregation of Revenue [Line Items] | |||||
| Non-interest income | $ 652,281 | $ 615,553 | $ 573,045 | ||
| Revenue from Contracts with Customers In Scope of ASC 606 [Member] | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Non-interest income | 603,185 | 570,267 | 529,109 | ||
| Revenue from Contracts with Customers In Scope of ASC 606 [Member] | Bank Card Transaction Fees [Member] | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Non-interest income | 184,267 | 189,784 | 191,156 | ||
| Revenue from Contracts with Customers In Scope of ASC 606 [Member] | Trust Fees [Member] | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Non-interest income | 232,700 | 214,430 | 190,954 | ||
| Revenue from Contracts with Customers In Scope of ASC 606 [Member] | Deposit Account Charges and Other Fees [Member] | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Non-interest income | 108,246 | 100,336 | 90,992 | ||
| Revenue from Contracts with Customers In Scope of ASC 606 [Member] | Consumer Brokerage Services [Member] | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Non-interest income | 22,051 | 18,141 | 17,223 | ||
| Revenue from Contracts with Customers In Scope of ASC 606 [Member] | Other Non-Interest Income [Member] | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Non-interest income | 55,921 | 47,576 | 38,784 | ||
| Revenue Not In Scope of ASC 606 [Member] | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Non-interest income | [1] | $ 49,096 | $ 45,286 | $ 43,936 | |
| |||||
Revenue from Contracts with Customers Revenue from Contracts with Customers (Schedule of Contract with Customer, Asset and Liability) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Bank Card Transaction Fees [Member] | |||
| Contract with Customer, Asset and Liability [Line Items] | |||
| Contract with Customer, Receivable | $ 16,878 | $ 17,754 | $ 18,069 |
| Trust Fees [Member] | |||
| Contract with Customer, Asset and Liability [Line Items] | |||
| Contract with Customer, Receivable | 2,424 | 2,165 | 1,764 |
| Deposit Account Charges and Other Fees [Member] | |||
| Contract with Customer, Asset and Liability [Line Items] | |||
| Contract with Customer, Receivable | 8,414 | 7,897 | 6,588 |
| Consumer Brokerage Services [Member] | |||
| Contract with Customer, Asset and Liability [Line Items] | |||
| Contract with Customer, Receivable | $ 0 | $ 0 | $ 8 |
Revenue from Contracts with Customers Revenue from Contracts with Customers (Schedule of Bank Card Transaction Fees) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | $ 184,267 | $ 189,784 | $ 191,156 |
| Debit Card [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | 44,029 | 44,517 | 43,881 |
| Debit Card [Member] | Fee income [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | 44,791 | 45,279 | 44,795 |
| Debit Card [Member] | Network Charges Expense [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | (762) | (762) | (914) |
| Credit Card [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | 14,402 | 16,012 | 14,448 |
| Credit Card [Member] | Fee income [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | 31,910 | 31,845 | 31,639 |
| Credit Card [Member] | Network Charges and Rewards Expense [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | (17,508) | (15,833) | (17,191) |
| Corporate Card Fees [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | 102,715 | 106,662 | 110,641 |
| Corporate Card Fees [Member] | Fee income [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | 216,312 | 216,393 | 220,229 |
| Corporate Card Fees [Member] | Network Charges and Rewards Expense [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | (113,597) | (109,731) | (109,588) |
| Merchant Fees [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | 23,121 | 22,593 | 22,186 |
| Merchant Fees [Member] | Fee income [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | 38,513 | 38,358 | 36,775 |
| Merchant Fees [Member] | Network Charges Expense [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | (4,574) | (4,250) | (3,588) |
| Merchant Fees [Member] | Fees to Cardholder Banks [Member] | |||
| Bank Card Transaction Fees [Line Items] | |||
| Bank card transaction fees | $ (10,818) | $ (11,515) | $ (11,001) |
Revenue from Contracts with Customers Revenue from Contracts with Customers (Schedule of Trust Fees) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Trust Fees [Line Items] | |||
| Trust fees | $ 232,700 | $ 214,430 | $ 190,954 |
| Private Client [Member] | |||
| Trust Fees [Line Items] | |||
| Trust fees | 189,481 | 173,659 | 153,524 |
| Institutional [Member] | |||
| Trust Fees [Line Items] | |||
| Trust fees | 37,129 | 34,596 | 31,756 |
| Other Trust Fees [Member] | |||
| Trust Fees [Line Items] | |||
| Trust fees | $ 6,090 | $ 6,175 | $ 5,674 |
Revenue from Contracts with Customers Revenue from Contracts with Customers (Schedule of Deposit Account Charges and Other Fees) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Deposit Account Charges and Other Fees [Line Items] | |||
| Deposit account charges and other fees | $ 108,246 | $ 100,336 | $ 90,992 |
| Corporate Cash Management [Member] | |||
| Deposit Account Charges and Other Fees [Line Items] | |||
| Deposit account charges and other fees | 72,203 | 64,838 | 56,291 |
| Overdraft and Return Item [Member] | |||
| Deposit Account Charges and Other Fees [Line Items] | |||
| Deposit account charges and other fees | 11,540 | 11,511 | 11,607 |
| Other Deposit Account Charges [Member] | |||
| Deposit Account Charges and Other Fees [Line Items] | |||
| Deposit account charges and other fees | $ 24,503 | $ 23,987 | $ 23,094 |
Fair Value Measurements (Summary Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
||
|---|---|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Mortgages Held-for-sale, Fair Value Disclosure | $ 4,028 | $ 2,981 | ||
| U.S. government and federal agency obligations | 3,279,100 | 2,555,252 | ||
| Government-sponsored enterprise obligations | 44,712 | 42,849 | ||
| State and municipal obligations | 664,733 | 742,891 | ||
| Agency mortgage-backed securities | 3,223,105 | 3,444,891 | ||
| Non-agency mortgage-backed securities | 435,688 | 568,689 | ||
| Asset-backed securities | 1,262,045 | 1,557,015 | ||
| Other debt securities | 186,130 | 225,266 | ||
| Trading securities | 40,080 | 38,034 | ||
| Equity securities with readily determinable fair values | 47,551 | 48,359 | ||
| Private equity investments | 184,343 | 184,386 | ||
| Derivative Assets | [1] | 51,421 | 62,648 | |
| Deferred Compensation Plan Assets | 23,276 | 21,849 | ||
| Total Assets | 9,446,212 | 9,495,110 | ||
| Derivative Liability | [1] | 18,795 | 26,963 | |
| Deferred Compensation Liability, Current and Noncurrent | 23,276 | 21,849 | ||
| Total liabilities | 42,071 | 48,812 | ||
| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Mortgages Held-for-sale, Fair Value Disclosure | 0 | 0 | ||
| U.S. government and federal agency obligations | 3,279,100 | 2,555,252 | ||
| Government-sponsored enterprise obligations | 0 | 0 | ||
| State and municipal obligations | 0 | 0 | ||
| Agency mortgage-backed securities | 0 | 0 | ||
| Non-agency mortgage-backed securities | 0 | 0 | ||
| Asset-backed securities | 0 | 0 | ||
| Other debt securities | 0 | 0 | ||
| Trading securities | 13,215 | 10,219 | ||
| Equity securities with readily determinable fair values | 47,551 | 48,359 | ||
| Private equity investments | 0 | 0 | ||
| Derivative Assets | [1] | 0 | 0 | |
| Deferred Compensation Plan Assets | 23,276 | 21,849 | ||
| Total Assets | 3,363,142 | 2,635,679 | ||
| Derivative Liability | [1] | 0 | 0 | |
| Deferred Compensation Liability, Current and Noncurrent | 23,276 | 21,849 | ||
| Total liabilities | 23,276 | 21,849 | ||
| Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Mortgages Held-for-sale, Fair Value Disclosure | 4,028 | 2,981 | ||
| U.S. government and federal agency obligations | 0 | 0 | ||
| Government-sponsored enterprise obligations | 44,712 | 42,849 | ||
| State and municipal obligations | 663,781 | 741,927 | ||
| Agency mortgage-backed securities | 3,223,105 | 3,444,891 | ||
| Non-agency mortgage-backed securities | 435,688 | 568,689 | ||
| Asset-backed securities | 1,262,045 | 1,557,015 | ||
| Other debt securities | 186,130 | 225,266 | ||
| Trading securities | 26,865 | 27,815 | ||
| Equity securities with readily determinable fair values | 0 | 0 | ||
| Private equity investments | 0 | 0 | ||
| Derivative Assets | [1] | 51,232 | 62,555 | |
| Deferred Compensation Plan Assets | 0 | 0 | ||
| Total Assets | 5,897,586 | 6,673,988 | ||
| Derivative Liability | [1] | 18,718 | 26,905 | |
| Deferred Compensation Liability, Current and Noncurrent | 0 | 0 | ||
| Total liabilities | 18,718 | 26,905 | ||
| Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Mortgages Held-for-sale, Fair Value Disclosure | 0 | 0 | ||
| U.S. government and federal agency obligations | 0 | 0 | ||
| Government-sponsored enterprise obligations | 0 | 0 | ||
| State and municipal obligations | 952 | 964 | ||
| Agency mortgage-backed securities | 0 | 0 | ||
| Non-agency mortgage-backed securities | 0 | 0 | ||
| Asset-backed securities | 0 | 0 | ||
| Other debt securities | 0 | 0 | ||
| Trading securities | 0 | 0 | ||
| Equity securities with readily determinable fair values | 0 | 0 | ||
| Private equity investments | 184,343 | 184,386 | ||
| Derivative Assets | [1] | 189 | 93 | |
| Deferred Compensation Plan Assets | 0 | 0 | ||
| Total Assets | 185,484 | 185,443 | ||
| Derivative Liability | [1] | 77 | 58 | |
| Deferred Compensation Liability, Current and Noncurrent | 0 | 0 | ||
| Total liabilities | $ 77 | $ 58 | ||
| ||||
Fair Value Measurements (Summary of Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Beginning balance | $ 185,350 | $ 177,614 | ||
| Total gains or losses (realized/unrealized) included in earnings | 11,736 | 24,134 | ||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | [1] | (14) | 15 | |
| Discount accretion | 2 | (2) | ||
| Purchases of private equity securities | 7,363 | 20,800 | ||
| Sale / paydown of private equity securities | (19,212) | 37,103 | ||
| Capitalized interest/dividends | 70 | 112 | ||
| Ending balance | 185,295 | 185,350 | ||
| Total gains or losses for the annual period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at period end | 12,737 | 14,409 | ||
| Gains (Losses) included in OCI Attributable to Change in Unrealized Gains (Losses) Relating to Assets Still Held, Total | $ (14) | 15 | ||
| Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Investment securities gains (losses), net | |||
| Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] | Net unrealized gains (losses) on other securities | |||
| State and Municipal Obligations [Member] | ||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Beginning balance | $ 964 | 947 | ||
| Total gains or losses (realized/unrealized) included in earnings | 0 | 0 | ||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | [1] | (14) | 15 | |
| Discount accretion | 2 | 2 | ||
| Purchases of private equity securities | 0 | 0 | ||
| Sale / paydown of private equity securities | 0 | 0 | ||
| Capitalized interest/dividends | 0 | 0 | ||
| Ending balance | 952 | 964 | ||
| Total gains or losses for the annual period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at period end | 0 | 0 | ||
| Gains (Losses) included in OCI Attributable to Change in Unrealized Gains (Losses) Relating to Assets Still Held, Total | (14) | 15 | ||
| Private Equity Investments [Member] | ||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Beginning balance | 184,386 | 176,667 | ||
| Total gains or losses (realized/unrealized) included in earnings | 11,736 | 24,134 | ||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | [1] | 0 | 0 | |
| Discount accretion | 0 | 0 | ||
| Purchases of private equity securities | 7,363 | 20,800 | ||
| Sale / paydown of private equity securities | (19,212) | (37,103) | ||
| Capitalized interest/dividends | 70 | (112) | ||
| Ending balance | 184,343 | 184,386 | ||
| Total gains or losses for the annual period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at period end | 12,737 | 14,409 | ||
| Gains (Losses) included in OCI Attributable to Change in Unrealized Gains (Losses) Relating to Assets Still Held, Total | $ 0 | $ 0 | ||
| ||||
Fair Value Measurements (Summary of Gains and Losses on Level 3 Assets and Liabilities) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Trading Activity, Gains and Losses, Net [Line Items] | ||
| Change in unrealized gains or losses relating to assets still held at period end | $ 12,737 | $ 14,409 |
| Investment Securities Gains (Losses), Net [Member] | ||
| Trading Activity, Gains and Losses, Net [Line Items] | ||
| Total gains or losses included in earnings | 11,736 | 24,134 |
| Change in unrealized gains or losses relating to assets still held at period end | $ 12,737 | $ 14,409 |
Fair Value Measurements (Summary of Quantitative Information About Level 3 Fair Value Measurements) (Details) - Private Equity Funds [Member] |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 | ||||
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||
| Fair Value, Market Comparable Companies, Valuation Techniques | Market comparable companies | |||
| Minimum [Member] | ||||
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||
| Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Multiple | 4.0 | |||
| Maximum [Member] | ||||
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||
| Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Multiple | 6.0 | |||
| Weighted Average [Member] | ||||
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||
| Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Multiple | 5.1 | [1] | ||
| ||||
Fair Value Measurements (Schedule of Fair Value Disclosures Measured On Nonrecurring Basis) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | ||
| Collateral dependent loans, fair value | $ 172 | $ 14,683 |
| Collateral dependent loans, Total Gains (Losses) | (460) | (2,382) |
| Foreclosed Assets NonRecurring Basis | 174 | 20 |
| Foreclosed Assets NonRecurring Basis Gain Loss | (40) | (50) |
| Long Lived Assets Nonrecurring Basis, fair value | 301 | 393 |
| Long Lived Assets Nonrecurring Basis Gains (Losses) | (99) | (626) |
| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | ||
| Collateral dependent loans, fair value | 0 | 0 |
| Foreclosed Assets NonRecurring Basis | 0 | 0 |
| Long Lived Assets Nonrecurring Basis, fair value | 0 | 0 |
| Significant Other Observable Inputs (Level 2) [Member] | ||
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | ||
| Collateral dependent loans, fair value | 0 | 0 |
| Foreclosed Assets NonRecurring Basis | 0 | 0 |
| Long Lived Assets Nonrecurring Basis, fair value | 0 | 0 |
| Significant Unobservable Inputs (Level 3) [Member] | ||
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | ||
| Collateral dependent loans, fair value | 172 | 14,683 |
| Foreclosed Assets NonRecurring Basis | 174 | 20 |
| Long Lived Assets Nonrecurring Basis, fair value | $ 301 | $ 393 |
Fair Value Of Financial Instruments (Schedule Of Estimated Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
||
|---|---|---|---|---|
| Carrying Amount | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | $ 17,771,263 | $ 17,220,103 | ||
| Loans Held-for-sale, Fair Value Disclosure | 4,329 | 3,242 | ||
| Investments, Fair Value Disclosure | 9,413,603 | 9,453,297 | ||
| Federal funds sold | 0 | 3,000 | ||
| Securities Purchased under Agreements to Resell | 850,000 | 625,000 | ||
| Interest-bearing Deposits in Banks and Other Financial Institutions | 2,744,393 | 2,624,553 | ||
| Cash and due from banks | 803,239 | 748,357 | ||
| Derivative Assets | 51,421 | 62,648 | ||
| Deferred Compensation Plan Assets | 23,276 | 21,849 | ||
| Assets, Fair Value Financial Instruments | 31,661,524 | 30,762,049 | ||
| Non-interest bearing | 8,205,711 | 8,150,669 | ||
| Savings, interest checking and money market | 15,047,406 | 14,754,571 | ||
| Time Deposits | 2,386,459 | 2,388,404 | ||
| Federal Funds Purchased, Fair Value Disclosure | 128,625 | 123,715 | ||
| Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 2,861,016 | 2,803,043 | ||
| Other borrowings | 12,739 | 0 | ||
| Derivative Liability | 18,795 | 26,963 | ||
| Deferred Compensation Liability, Current and Noncurrent | 23,276 | 21,849 | ||
| Financial Liabilities Fair Value Disclosure | 28,684,027 | 28,269,214 | ||
| Carrying Amount | Business [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 6,439,380 | 6,053,820 | ||
| Carrying Amount | Real Estate - Construction And Land [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 1,438,012 | 1,409,901 | ||
| Carrying Amount | Real Estate - Business [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 3,674,567 | 3,661,218 | ||
| Carrying Amount | Real Estate - Personal [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 3,053,435 | 3,058,195 | ||
| Carrying Amount | Consumer Loan [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 2,196,822 | 2,073,123 | ||
| Carrying Amount | Revolving Home Equity [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 375,159 | 356,650 | ||
| Carrying Amount | Consumer Credit Card [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 589,694 | 595,930 | ||
| Carrying Amount | Overdrafts [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 4,194 | 11,266 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 17,327,602 | 16,593,252 | ||
| Loans Held-for-sale, Fair Value Disclosure | 4,329 | 3,242 | ||
| Investments, Fair Value Disclosure | 9,413,603 | 9,453,297 | ||
| Federal funds sold | 0 | 3,000 | ||
| Securities Purchased under Agreements to Resell | 869,427 | 622,021 | ||
| Interest-bearing Deposits in Banks and Other Financial Institutions | 2,744,393 | 2,624,553 | ||
| Cash and due from banks | 803,239 | 748,357 | ||
| Derivative Assets | 51,421 | 62,648 | ||
| Deferred Compensation Plan Assets | 23,276 | 21,849 | ||
| Assets, Fair Value Financial Instruments | 31,237,290 | 30,132,219 | ||
| Non-interest bearing | 8,205,711 | 8,150,669 | ||
| Savings, interest checking and money market | 15,047,406 | 14,754,571 | ||
| Time Deposits | 2,418,268 | 2,409,537 | ||
| Federal Funds Purchased, Fair Value Disclosure | 128,625 | 123,715 | ||
| Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 2,863,921 | 2,806,428 | ||
| Other borrowings | 12,739 | 0 | ||
| Derivative Liability | 18,795 | 26,963 | ||
| Deferred Compensation Liability, Current and Noncurrent | 23,276 | 21,849 | ||
| Financial Liabilities Fair Value Disclosure | 28,718,741 | 28,293,732 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Loans Held-for-sale, Fair Value Disclosure | 0 | 0 | ||
| Investments, Fair Value Disclosure | 3,339,866 | 2,613,830 | ||
| Federal funds sold | 0 | 3,000 | ||
| Securities Purchased under Agreements to Resell | 0 | 0 | ||
| Interest-bearing Deposits in Banks and Other Financial Institutions | 2,744,393 | 2,624,553 | ||
| Cash and due from banks | 803,239 | 748,357 | ||
| Derivative Assets | 0 | 0 | ||
| Deferred Compensation Plan Assets | 23,276 | 21,849 | ||
| Assets, Fair Value Financial Instruments | 6,910,774 | 6,011,589 | ||
| Non-interest bearing | 8,205,711 | 8,150,669 | ||
| Savings, interest checking and money market | 15,047,406 | 14,754,571 | ||
| Time Deposits | 0 | 0 | ||
| Federal Funds Purchased, Fair Value Disclosure | 128,625 | 123,715 | ||
| Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 0 | 0 | ||
| Other borrowings | 12,739 | 0 | ||
| Derivative Liability | 0 | 0 | ||
| Deferred Compensation Liability, Current and Noncurrent | 23,276 | 21,849 | ||
| Financial Liabilities Fair Value Disclosure | 23,417,757 | 23,050,804 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Loans Held-for-sale, Fair Value Disclosure | 4,329 | 3,242 | ||
| Investments, Fair Value Disclosure | 5,842,326 | 6,608,452 | ||
| Federal funds sold | 0 | 0 | ||
| Securities Purchased under Agreements to Resell | 0 | 0 | ||
| Interest-bearing Deposits in Banks and Other Financial Institutions | 0 | 0 | ||
| Cash and due from banks | 0 | 0 | ||
| Derivative Assets | 51,232 | 62,555 | ||
| Deferred Compensation Plan Assets | 0 | 0 | ||
| Assets, Fair Value Financial Instruments | 5,897,887 | 6,674,249 | ||
| Non-interest bearing | 0 | 0 | ||
| Savings, interest checking and money market | 0 | 0 | ||
| Time Deposits | 0 | 0 | ||
| Federal Funds Purchased, Fair Value Disclosure | 0 | 0 | ||
| Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 0 | 0 | ||
| Other borrowings | 0 | 0 | ||
| Derivative Liability | 18,718 | 26,905 | ||
| Deferred Compensation Liability, Current and Noncurrent | 0 | 0 | ||
| Financial Liabilities Fair Value Disclosure | 18,718 | 26,905 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 17,327,602 | 16,593,252 | ||
| Loans Held-for-sale, Fair Value Disclosure | 0 | 0 | ||
| Investments, Fair Value Disclosure | 231,411 | 231,015 | ||
| Federal funds sold | 0 | 0 | ||
| Securities Purchased under Agreements to Resell | 869,427 | 622,021 | ||
| Interest-bearing Deposits in Banks and Other Financial Institutions | 0 | 0 | ||
| Cash and due from banks | 0 | 0 | ||
| Derivative Assets | 189 | 93 | ||
| Deferred Compensation Plan Assets | 0 | 0 | ||
| Assets, Fair Value Financial Instruments | 18,428,629 | 17,446,381 | ||
| Non-interest bearing | 0 | 0 | ||
| Savings, interest checking and money market | 0 | 0 | ||
| Time Deposits | 2,418,268 | 2,409,537 | ||
| Federal Funds Purchased, Fair Value Disclosure | 0 | 0 | ||
| Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure | 2,863,921 | 2,806,428 | ||
| Other borrowings | 0 | 0 | ||
| Derivative Liability | 77 | 58 | ||
| Deferred Compensation Liability, Current and Noncurrent | 0 | 0 | ||
| Financial Liabilities Fair Value Disclosure | 5,282,266 | 5,216,023 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Business [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 6,367,754 | 5,943,565 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Business [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Business [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Business [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 6,367,754 | 5,943,565 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Construction And Land [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 1,415,490 | 1,384,029 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Construction And Land [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Construction And Land [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Construction And Land [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 1,415,490 | 1,384,029 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Business [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 3,628,499 | 3,558,862 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Business [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Business [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Business [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 3,628,499 | 3,558,862 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Personal [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 2,815,384 | 2,738,880 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Personal [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Personal [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Real Estate - Personal [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 2,815,384 | 2,738,880 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Consumer Loan [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 2,188,772 | 2,053,191 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Consumer Loan [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Consumer Loan [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Consumer Loan [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 2,188,772 | 2,053,191 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Revolving Home Equity [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 371,998 | 353,731 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Revolving Home Equity [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Revolving Home Equity [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Revolving Home Equity [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 371,998 | 353,731 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Consumer Credit Card [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 535,660 | 549,874 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Consumer Credit Card [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Consumer Credit Card [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Consumer Credit Card [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 535,660 | 549,874 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Overdrafts [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 4,045 | 11,120 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Overdrafts [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Overdrafts [Member] | Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 0 | 0 | ||
| Estimate of Fair Value, Fair Value Disclosure [Member] | Overdrafts [Member] | Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Loans Receivable, Fair Value Disclosure | 4,045 | 11,120 | ||
| Federal funds sold | 0 | 3,000 | ||
| Securities Purchased under Agreements to Resell | 850,000 | 625,000 | ||
| Interest-bearing Deposits in Banks and Other Financial Institutions | 2,744,393 | 2,624,553 | ||
| Cash and due from banks | 803,239 | 748,357 | ||
| Derivative Assets | [1] | 51,421 | 62,648 | |
| Deferred Compensation Plan Assets | 23,276 | 21,849 | ||
| Non-interest bearing | 8,205,711 | 8,150,669 | ||
| Savings, interest checking and money market | 15,047,406 | 14,754,571 | ||
| Time Deposits | 2,386,459 | |||
| Other borrowings | 12,798 | 56 | ||
| Derivative Liability | [1] | 18,795 | 26,963 | |
| Deferred Compensation Liability, Current and Noncurrent | $ 23,276 | 21,849 | ||
| Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Other liabilities | |||
| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Derivative Assets | [1] | $ 0 | 0 | |
| Deferred Compensation Plan Assets | 23,276 | 21,849 | ||
| Derivative Liability | [1] | 0 | 0 | |
| Deferred Compensation Liability, Current and Noncurrent | 23,276 | 21,849 | ||
| Significant Other Observable Inputs (Level 2) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Derivative Assets | [1] | 51,232 | 62,555 | |
| Deferred Compensation Plan Assets | 0 | 0 | ||
| Derivative Liability | [1] | 18,718 | 26,905 | |
| Deferred Compensation Liability, Current and Noncurrent | 0 | 0 | ||
| Significant Unobservable Inputs (Level 3) [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Derivative Assets | [1] | 189 | 93 | |
| Deferred Compensation Plan Assets | 0 | 0 | ||
| Derivative Liability | [1] | 77 | 58 | |
| Deferred Compensation Liability, Current and Noncurrent | $ 0 | $ 0 | ||
| ||||
Derivative Instruments (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2021 |
|||
| Derivative [Line Items] | |||||
| Derivative, Description of Terms | As of December 31, 2025, the Company held four interest rate floors indexed to 1-month SOFR to hedge the risk of declining interest rates on certain floating rate commercial loans. The floors have a combined notional value of $2.0 billion and are forward-starting. Each of the four interest rate floors has a six-year term and a notional amount of $500 million. In the event that the index rate falls below zero, the maximum rate that the Company can earn on the notional amount of each floor is limited to the strike rate | ||||
| Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge | 5 years 6 months | ||||
| Derivative, Notional Amount | $ 4,593,942 | $ 4,631,381 | |||
| Derivative Assets | [1] | 51,421 | 62,648 | ||
| Interest Rate Floor [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Premium Paid | 90,200 | ||||
| Net unrealized gain (loss) on interest rate floors | 26,200 | ||||
| Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months | 11,100 | ||||
| Derivative, Notional Amount | 2,000,000 | 2,000,000 | |||
| Monetized Interest Rate Floor [Member] | |||||
| Derivative [Line Items] | |||||
| Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months | 8,800 | ||||
| Derivative, Notional Amount | $ 1,500,000 | ||||
| Derivative Assets | $ 163,200 | ||||
| Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred | 8,800 | ||||
| Interest Rate Swaps [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Notional Amount | 1,968,679 | 2,065,400 | |||
| Variation Margin Impact to Positive Fair Values of Cleared Swaps | $ 0 | $ 0 | |||
| |||||
Derivative Instruments (Interest Rate Floor Summary) (Details) - Interest Rate Floor [Member] |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
Rate
| |
| February 23, 2023 Interest Rate Floor | |
| Interest Rate Floor [Line Items] | |
| Derivative, Floor Interest Rate | 3.50% |
| Derivative, Effective Date | Jul. 01, 2024 |
| Derivative, Maturity Date | Jul. 01, 2030 |
| August 7, 2023 | |
| Interest Rate Floor [Line Items] | |
| Derivative, Floor Interest Rate | 3.25% |
| Derivative, Effective Date | Nov. 01, 2024 |
| Derivative, Maturity Date | Nov. 01, 2030 |
| August 3, 2023 Floor 1 | |
| Interest Rate Floor [Line Items] | |
| Derivative, Floor Interest Rate | 3.00% |
| Derivative, Effective Date | Mar. 01, 2025 |
| Derivative, Maturity Date | Mar. 01, 2031 |
| August 3, 2023 Floor 2 | |
| Interest Rate Floor [Line Items] | |
| Derivative, Floor Interest Rate | 2.75% |
| Derivative, Effective Date | Jul. 01, 2025 |
| Derivative, Maturity Date | Jul. 01, 2031 |
Derivative Instruments (Schedule Of Notional Amounts Of Derivative Instruments) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Derivative [Line Items] | ||
| Derivative, Notional Amount | $ 4,593,942 | $ 4,631,381 |
| Interest Rate Swaps [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 1,968,679 | 2,065,400 |
| Interest Rate Floor [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 2,000,000 | 2,000,000 |
| Interest Rate Caps [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 105,770 | 37,488 |
| Credit Risk Participation Agreements [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 474,951 | 503,196 |
| Foreign Exchange Contracts [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 29,451 | 16,978 |
| Mortgage Loan Commitments [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 6,297 | 3,060 |
| Mortgage Loan Forward Sale Contracts [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | 1,794 | 1,759 |
| Forward Contracts [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Notional Amount | $ 7,000 | $ 3,500 |
Derivative Instruments (Schedule Of Fair Values Of Derivative Instruments) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
||
|---|---|---|---|---|
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | [1] | $ 51,421 | $ 62,648 | |
| Other liabilities | [1] | $ (18,795) | (26,963) | |
| Derivative Instruments, Statement of Financial Position [Extensible Enumeration] | Other assets | |||
| Designated as Hedging Instrument [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | $ 32,524 | 35,544 | ||
| Other liabilities | 0 | 0 | ||
| Designated as Hedging Instrument [Member] | Interest Rate Floor [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 32,524 | 35,544 | ||
| Other liabilities | 0 | 0 | ||
| Not Designated as Hedging Instrument [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 18,897 | 27,104 | ||
| Other liabilities | (18,795) | (26,963) | ||
| Not Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 18,294 | 26,759 | ||
| Other liabilities | (18,294) | (26,759) | ||
| Not Designated as Hedging Instrument [Member] | Interest Rate Caps [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 2 | 44 | ||
| Other liabilities | (2) | (44) | ||
| Not Designated as Hedging Instrument [Member] | Credit Risk Participation Agreements [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 56 | 35 | ||
| Other liabilities | (77) | (58) | ||
| Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 396 | 179 | ||
| Other liabilities | (401) | (101) | ||
| Not Designated as Hedging Instrument [Member] | Mortgage Loan Commitments [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 133 | 58 | ||
| Other liabilities | 0 | 0 | ||
| Not Designated as Hedging Instrument [Member] | Mortgage Loan Forward Sale Contracts [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 15 | 14 | ||
| Other liabilities | 0 | 0 | ||
| Not Designated as Hedging Instrument [Member] | Forward Contracts [Member] | ||||
| Derivatives, Fair Value [Line Items] | ||||
| Other assets | 1 | 15 | ||
| Other liabilities | $ (21) | $ (1) | ||
| ||||
Derivative Instruments (Summary of Cash Flow Hedge Activity) (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Summary of Cash Flow Hedge Activity [Line Items] | |||
| OCIDerivativeInstrumentsGainLossBeforeReclassificationAndTaxEffectivePortion | $ (3,020) | $ (43,416) | $ (8,860) |
| Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax | 3,915 | (10,109) | 3,122 |
| Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax | (6,935) | (33,307) | (11,982) |
| Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net (Deprecated 2025) | 9,073 | 11,399 | 15,209 |
| Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 25,959 | 28,331 | 29,731 |
| Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), Adjustments, before Tax | (16,886) | (16,932) | (14,522) |
| Interest Rate Floor [Member] | |||
| Summary of Cash Flow Hedge Activity [Line Items] | |||
| OCIDerivativeInstrumentsGainLossBeforeReclassificationAndTaxEffectivePortion | (3,020) | (43,416) | (8,860) |
| Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax | 3,915 | (10,109) | 3,122 |
| Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax | (6,935) | (33,307) | (11,982) |
| Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net (Deprecated 2025) | 9,073 | 11,399 | 15,209 |
| Interest Rate Floor [Member] | Interest and Fee Income on Loans [Member] | |||
| Summary of Cash Flow Hedge Activity [Line Items] | |||
| Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 25,959 | 28,331 | 29,731 |
| Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), Adjustments, before Tax | $ (16,886) | $ (16,932) | $ (14,522) |
Derivative Instruments (Summary Of The Effects Of Derivative Instruments On Consolidated Statements Of Income) (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | $ 2,129 | $ 2,642 | $ 3,922 |
| Other Non-Interest Income [Member] | Interest Rate Swaps [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | 2,111 | 2,672 | 3,642 |
| Other Non-Interest Income [Member] | Interest Rate Caps [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | 0 | 0 | 86 |
| Other Non-Interest Income [Member] | Credit Risk Participation Agreements [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | 256 | (109) | 60 |
| Other Non-Interest Income [Member] | Foreign Exchange Contracts [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | (84) | 23 | (14) |
| Loans Fees And Sales [Member] | Mortgage Loan Commitments [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | 75 | (29) | 87 |
| Loans Fees And Sales [Member] | Mortgage Loan Forward Sale Contracts [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | 2 | 5 | 8 |
| Loans Fees And Sales [Member] | Forward Contracts [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | $ (231) | $ 80 | $ 53 |
Derivative Instruments Derivative Instruments (Balance Sheet Offsetting) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
||
|---|---|---|---|---|
| Balance Sheet Offsetting [Line Items] | ||||
| Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement | $ 51,421 | $ 62,648 | ||
| Derivative Asset, Amount Offset by Liabiilty | 0 | 0 | ||
| Derivative Assets | [1] | 51,421 | 62,648 | |
| Derivative Liability, Gross Liability Including Not Subject to Master Netting Arrangement | 18,795 | 26,963 | ||
| Derivative Liability, Amount Offset by Asset | 0 | 0 | ||
| Derivative Liability | [1] | 18,795 | 26,963 | |
| Derivative Subject to Master Netting Agreement [Member] | ||||
| Balance Sheet Offsetting [Line Items] | ||||
| Derivative Asset, Fair Value, Gross Asset | 51,217 | 62,437 | ||
| Derivative Asset, Amount Offset by Liabiilty | 0 | 0 | ||
| Derivative Asset, Noncurrent | 51,217 | 62,437 | ||
| Derivative Asset, Not Offset, Policy Election Deduction | (10,642) | (3,780) | ||
| Derivative Asset, Fair Value of Collateral | (29,609) | (54,620) | ||
| Derivative Asset, Fair Value, Amount Offset Against Collateral | 10,966 | 4,037 | ||
| Derivative Liability, Fair Value, Gross Liability | 18,400 | 26,848 | ||
| Derivative Liability, Amount Offset by Asset | 0 | 0 | ||
| Derivative Liability, Noncurrent | 18,400 | 26,848 | ||
| Derivative Liability, Not Offset, Policy Election Deduction | (10,642) | (3,780) | ||
| Derivative Liability, Fair Value of Collateral | 0 | 0 | ||
| Derivative Liability, Fair Value, Amount Offset Against Collateral | 7,758 | 23,068 | ||
| Derivative Not Subject to Master Netting Agreement [Member] | ||||
| Balance Sheet Offsetting [Line Items] | ||||
| Derivative Asset, Fair Value, Gross Asset | 204 | 211 | ||
| Derivative Asset, Amount Offset by Liabiilty | 0 | 0 | ||
| Derivative Asset, Not Subject to Master Netting Arrangement | 204 | 211 | ||
| Derivative Liability, Fair Value, Gross Liability | 395 | 115 | ||
| Derivative Liability, Amount Offset by Asset | 0 | 0 | ||
| Derivative Liability, Not Subject to Master Netting Arrangement | $ 395 | $ 115 | ||
| ||||
Resale and Repurchase Agreements (Balance Sheet Offsetting) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Balance Sheet Offsetting [Line Items] | ||
| Securities Purchased under Agreements to Resell | $ 850,000 | $ 625,000 |
| Resale agreement [Member] | ||
| Balance Sheet Offsetting [Line Items] | ||
| Securities Purchased under Agreements to Resell, Gross | 850,000 | 625,000 |
| Securities Purchased under Agreements to Resell, Liability | 0 | 0 |
| Securities Purchased under Agreements to Resell | 850,000 | 625,000 |
| Securities Purchased under Agreements to Resell, Not Subject to Master Netting Arrangement | 0 | 0 |
| Securities Purchased under Agreements to Resell, Collateral, Obligation to Return Securities | (850,000) | (625,000) |
| Securities Purchased under Agreements to Resell, Amount Offset Against Collateral | 0 | 0 |
| Repurchase agreement [Member] | ||
| Balance Sheet Offsetting [Line Items] | ||
| Securities Sold under Agreements to Repurchase, Gross | 2,861,016 | 2,803,043 |
| Securities Sold under Agreements to Repurchase, Asset | 0 | 0 |
| Securities sold under agreements to repurchase, net | 2,861,016 | 2,803,043 |
| Securities Sold under Agreements to Repurchase, Not Subject to Master Netting Arrangement | 0 | 0 |
| Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities | (2,861,016) | (2,803,043) |
| Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral | $ 0 | $ 0 |
Resale and Repurchase Agreements (Remaining Contractual Maturities of Repurchase Agreements) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| US Treasury and Government [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | $ 503,061 | $ 518,937 |
| US Government-sponsored Enterprise Debt Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 10,539 | 9,969 |
| Agency mortgage-backed securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 1,679,278 | 1,673,006 |
| Non-agency mortgage-backed securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 21,970 | 24,273 |
| Asset-backed Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 504,709 | 511,691 |
| Other Debt Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 141,459 | 65,167 |
| Repurchase Agreements [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 2,861,016 | 2,803,043 |
| Maturity Overnight [Member] | US Treasury and Government [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 503,061 | 518,937 |
| Maturity Overnight [Member] | US Government-sponsored Enterprise Debt Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 10,539 | 9,969 |
| Maturity Overnight [Member] | Agency mortgage-backed securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 1,647,928 | 1,641,156 |
| Maturity Overnight [Member] | Non-agency mortgage-backed securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 21,970 | 24,273 |
| Maturity Overnight [Member] | Asset-backed Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 453,827 | 462,841 |
| Maturity Overnight [Member] | Other Debt Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 141,459 | 65,167 |
| Maturity Overnight [Member] | Repurchase Agreements [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 2,778,784 | 2,722,343 |
| Maturity up to 90 days [Member] | US Treasury and Government [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 0 | 0 |
| Maturity up to 90 days [Member] | US Government-sponsored Enterprise Debt Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 0 | 0 |
| Maturity up to 90 days [Member] | Agency mortgage-backed securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 4,600 | 9,600 |
| Maturity up to 90 days [Member] | Non-agency mortgage-backed securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 0 | 0 |
| Maturity up to 90 days [Member] | Asset-backed Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 29,656 | 30,623 |
| Maturity up to 90 days [Member] | Other Debt Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 0 | 0 |
| Maturity up to 90 days [Member] | Repurchase Agreements [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 34,256 | 40,223 |
| Maturity Greater than 90 Days [Member] | US Treasury and Government [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 0 | 0 |
| Maturity Greater than 90 Days [Member] | US Government-sponsored Enterprise Debt Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 0 | 0 |
| Maturity Greater than 90 Days [Member] | Agency mortgage-backed securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 26,750 | 22,250 |
| Maturity Greater than 90 Days [Member] | Non-agency mortgage-backed securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 0 | 0 |
| Maturity Greater than 90 Days [Member] | Asset-backed Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 21,226 | 18,227 |
| Maturity Greater than 90 Days [Member] | Other Debt Securities [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | 0 | 0 |
| Maturity Greater than 90 Days [Member] | Repurchase Agreements [Member] | ||
| Schedule of Underlying Assets of Repurchase Agreements [Line Items] | ||
| Assets Sold under Agreements to Repurchase, Repurchase Liability | $ 47,976 | $ 40,477 |
Commitments, Contingencies And Guarantees (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Notional amount of underlying swaps | $ 4,593,942 | $ 4,631,381 |
| Financial Standby Letter of Credit [Member] | ||
| Carrying value of the guarantee obligations, liability | 4,400 | |
| Commitments outstanding, maximum potential future payments | 669,700 | |
| State Tax Credits [Member] | ||
| Purchases of state tax credits | 179,400 | |
| Sales of state tax credits | 178,600 | |
| Purchase Obligation, to be Paid, Year One | 165,200 | |
| Purchase obligation, to be paid in years after year one | 505,900 | |
| Risk Participation Agreement [Member] | ||
| Carrying value of the guarantee obligations, liability | 77 | |
| Notional amount of underlying swaps | $ 283,300 | |
| Risk Participation Agreement [Member] | Minimum [Member] | ||
| Risk Participation Agreements, Term | 1 year | |
| Risk Participation Agreement [Member] | Maximum [Member] | ||
| Risk Participation Agreements, Term | 15 years |
Commitments, Contingencies And Guarantees (Schedule Of Off-Balance Sheet Instruments Commitments) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Commercial letters of credit | $ 1,698 | $ 2,728 |
| Credit Card [Member] | ||
| Commitments to extend credit | 6,110,965 | 5,796,427 |
| Other [Member] | ||
| Commitments to extend credit | 9,696,270 | 9,616,132 |
| Financial Standby Letter of Credit [Member] | ||
| Standby letters of credit, net of conveyances to others | $ 648,168 | $ 561,505 |
Related Parties (Narrative) (Details) - Tower Property [Member] |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2025
USD ($)
Rate
shares
|
Dec. 31, 2024
USD ($)
$ / Square_Foot
|
Dec. 31, 2023
USD ($)
$ / Square_Foot
|
|
| Percentage of Tower stock owned by the Company's Executive Officers | Rate | 76.00% | ||
| Company stock owned by Tower | shares | 284,092 | ||
| Tower's long-term line of credit with the Bank | $ 13,500,000 | ||
| Tower's line of credit, maximum borrowing amount (based on collateral) | 9,700,000 | ||
| Tower's maximum amount outstanding on the line of credit during period | 0 | $ 0 | $ 0 |
| Tower's line of credit, current balance | 0 | 0 | 0 |
| Tower's letters of credit outstanding, amount | 0 | 0 | 0 |
| Tower's line of credit facility, commitment fee amount | 0 | 0 | 0 |
| Tower's long-term construction loan | $ 0 | 0 | 0 |
| Rent paid to the Company by Tower | $ 81,000 | $ 82,000 | |
| Rent per square foot | $ / Square_Foot | 17.69 | 17.50 | |
Related Parties (Schedule Of Related Party Expenses) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Related Party Transaction [Line Items] | |||
| Related Party Transaction, Expenses from Transactions with Related Party | $ 0 | $ 2,926 | $ 3,791 |
| Leasing Agent Fees [Member] | |||
| Related Party Transaction [Line Items] | |||
| Related Party Transaction, Expenses from Transactions with Related Party | 0 | 16 | 434 |
| Operation Of Parking Garages [Member] | |||
| Related Party Transaction [Line Items] | |||
| Related Party Transaction, Expenses from Transactions with Related Party | 0 | 125 | 111 |
| Building Management Fees [Member] | |||
| Related Party Transaction [Line Items] | |||
| Related Party Transaction, Expenses from Transactions with Related Party | 0 | 2,342 | 2,202 |
| Property Construction Management Fees [Member] | |||
| Related Party Transaction [Line Items] | |||
| Related Party Transaction, Expenses from Transactions with Related Party | 0 | 165 | 360 |
| Tower's project consulting fees | |||
| Related Party Transaction [Line Items] | |||
| Related Party Transaction, Expenses from Transactions with Related Party | 0 | 0 | 419 |
| Dividends Paid On Company Stock Held By Tower [Member] | |||
| Related Party Transaction [Line Items] | |||
| Related Party Transaction, Expenses from Transactions with Related Party | $ 0 | $ 278 | $ 265 |
Parent Company Condensed Financial Statements (Narrative) (Details) - USD ($) |
3 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 30, 2024 |
Jun. 30, 2024 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
May 03, 2024 |
|
| Investments in marketable common and preferred stock | $ 47,551,000 | $ 48,359,000 | ||||
| Equity Securities without Readily Determinable Fair Value, Amount | $ 9,803,000 | 9,083,000 | $ 6,978,000 | |||
| Visa Class B-2 Shares | ||||||
| Equity Securities without Readily Determinable Fair Value, Amount | $ 0 | |||||
| Equity Securities without Readily Determinable Fair Value, Shares | 411,723 | |||||
| Visa Class A Shares | ||||||
| Proceeds from Sale of Equity Securities | $ 56,800,000 | $ 119,800,000 | 176,600,000 | |||
| Commerce Bancshares, Inc. (Parent) [Member] | ||||||
| Note receivable due from bank subsidiary | $ 50,000,000 | 50,000,000 | ||||
| Parent's line of credit facility with the Bank, maximum borrowing capacity | 20,000,000.0 | |||||
| Parent line of credit with Bank, borrowings during period | 0 | $ 0 | $ 0 | |||
| Private Equity Investments, planned additional investments | 44,700,000 | |||||
| Financial Instruments Owned Corporate Bonds | 941,000 | |||||
| Investments in marketable common and preferred stock | 4,600,000 | |||||
| Equity Securities without Readily Determinable Fair Value, Amount | 7,700,000 | |||||
| Commerce Bancshares, Inc. (Parent) [Member] | FineMark Holdings, Inc. Common Stock | ||||||
| Investments in marketable common and preferred stock | $ 4,600,000 | |||||
Parent Company Condensed Financial Statements (Condensed Balance Sheets) (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Debt Securities, Available-for-sale | $ 9,095,513 | $ 9,136,853 |
| Equity Securities, FV-NI and without Readily Determinable Fair Value | 57,354 | 57,442 |
| Other assets | 852,377 | 837,288 |
| Total assets | 32,915,089 | 31,996,627 |
| Other liabilities | 458,302 | 443,694 |
| Total liabilities | 29,100,317 | 28,664,152 |
| Stockholders’ equity | 3,791,371 | 3,309,881 |
| Total liabilities and equity | 32,915,089 | 31,996,627 |
| Commerce Bancshares, Inc. (Parent) [Member] | ||
| Investment in consolidated subsidiary, Banks | 3,280,689 | 2,697,961 |
| Investment in consolidated subsidiaries, Non-banks | 203,879 | 187,404 |
| Cash | 248,855 | 357,046 |
| Debt Securities, Available-for-sale | 941 | 5,381 |
| Equity Securities, FV-NI and without Readily Determinable Fair Value | 12,337 | 12,750 |
| Note receivable due from bank subsidiary | 50,000 | 50,000 |
| Advances to subsidiaries, net of borrowings | 550 | 1,500 |
| Income tax receivable and deferred tax assets | 7,546 | 9,131 |
| Other assets | 34,004 | 31,164 |
| Total assets | 3,838,801 | 3,352,337 |
| Pension obligation | 1,277 | 3,220 |
| Other liabilities | 46,153 | 39,236 |
| Total liabilities | 47,430 | 42,456 |
| Stockholders’ equity | 3,791,371 | 3,309,881 |
| Total liabilities and equity | $ 3,838,801 | $ 3,352,337 |
Parent Company Condensed Financial Statements (Condensed Statements Of Income) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Interest and dividends on investment securities | $ 310,181 | $ 271,774 | $ 278,755 |
| Salaries and employee benefits | 628,453 | 607,862 | 584,063 |
| Professional and other services | 48,856 | 35,077 | 36,198 |
| Data processing fees paid to affiliates | 133,970 | 127,390 | 118,758 |
| Other | 38,296 | 48,932 | 41,692 |
| Total non-interest expense | 979,826 | 951,229 | 930,982 |
| Income tax expense (benefit) | 161,136 | 145,089 | 134,549 |
| NET INCOME ATTRIBUTABLE TO COMMERCE BANCSHARES, INC. | 566,251 | 526,331 | 477,060 |
| Commerce Bancshares, Inc. (Parent) [Member] | |||
| Dividends received from consolidated subsidiary banks | 240,002 | 215,001 | 280,000 |
| Earnings of consolidated subsidiaries, net of dividends | 338,060 | 191,421 | 203,570 |
| Interest and dividends on investment securities | 2,084 | 2,282 | 2,905 |
| Management fees charged subsidiaries | 45,776 | 42,296 | 47,773 |
| Investment securities gains (losses) | 1,408 | 176,863 | (621) |
| Net interest income on advances and note to subsidiaries | 1,996 | 2,415 | 2,636 |
| Other | 4,099 | 3,294 | 2,842 |
| Total income | 633,425 | 633,572 | 539,105 |
| Salaries and employee benefits | 44,778 | 44,520 | 41,549 |
| Professional and other services | 3,564 | 3,495 | 3,580 |
| Data processing fees paid to affiliates | 3,041 | 3,316 | 3,347 |
| Community Service | 0 | 5,000 | 0 |
| Other | 19,525 | 15,390 | 16,264 |
| Total non-interest expense | 70,908 | 71,721 | 64,740 |
| Income tax expense (benefit) | (3,734) | 35,520 | (2,695) |
| NET INCOME ATTRIBUTABLE TO COMMERCE BANCSHARES, INC. | $ 566,251 | $ 526,331 | $ 477,060 |
Parent Company Condensed Financial Statements (Condensed Statements Of Cash Flows) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|||
| OPERATING ACTIVITIES: | |||||
| Net income | $ 566,251 | $ 526,331 | $ 477,060 | ||
| Other changes, net | (2,769) | (15,986) | (113,481) | ||
| Net cash provided by (used in) operating activities | 645,136 | 577,859 | 488,769 | ||
| INVESTING ACTIVITIES | |||||
| Proceeds from maturities/pay downs of investment securities | [1] | 1,774,612 | 2,133,113 | 1,935,552 | |
| Purchases of investment securities | [1] | (1,451,271) | (2,677,996) | (246,286) | |
| Purchases of land, buildings and equipment | (52,748) | (46,133) | (88,074) | ||
| Net cash provided by (used in) investing activities | (462,370) | 483,787 | 2,183,832 | ||
| FINANCING ACTIVITIES | |||||
| Purchases of treasury stock | (207,567) | (170,470) | (76,370) | ||
| Net cash provided by (used in) financing activities | (11,043) | (372,937) | (883,119) | ||
| Increase (decrease) in cash and cash equivalents | 171,723 | 688,709 | 1,789,482 | ||
| Income tax payments (receipts), net | 162,912 | 126,129 | 130,957 | ||
| Commerce Bancshares, Inc. (Parent) [Member] | |||||
| OPERATING ACTIVITIES: | |||||
| Net income | 566,251 | 526,331 | 477,060 | ||
| Earnings of consolidated subsidiaries, net of dividends | (338,060) | (191,421) | (203,570) | ||
| Other changes, net | 10,312 | (165,330) | 5,749 | ||
| Net cash provided by (used in) operating activities | 238,503 | 169,580 | 279,239 | ||
| INVESTING ACTIVITIES | |||||
| (Increase) Decrease In Investment In Subsidiaries, Net | (10) | 0 | 4,348 | ||
| Proceeds from sales and maturities of available for sale debt, equity, and other securities | 0 | 176,561 | 0 | ||
| Proceeds from maturities/pay downs of investment securities | 7,433 | 9 | 15 | ||
| Purchases of investment securities | (862) | (1,062) | (902) | ||
| (Increase) Decrease In Advances To Subsidiaries Net | 950 | 300 | 18,729 | ||
| Purchases of land, buildings and equipment | (38) | (5) | (490) | ||
| Net cash provided by (used in) investing activities | 7,473 | 175,803 | 21,700 | ||
| FINANCING ACTIVITIES | |||||
| Purchases of treasury stock | (207,567) | (171,407) | (76,890) | ||
| Issuance of stock under equity compensation plans | (4) | 0 | (3) | ||
| Cash dividends paid on common stock | (146,596) | (139,503) | (134,734) | ||
| Net cash provided by (used in) financing activities | (354,167) | (310,910) | (211,627) | ||
| Increase (decrease) in cash and cash equivalents | (108,191) | 34,473 | 89,312 | ||
| Cash and cash equivalents at beginning of year | 357,046 | 322,573 | 233,261 | ||
| Cash and cash equivalents at end of year | 248,855 | 357,046 | 322,573 | ||
| Income tax payments (receipts), net | $ (4,430) | $ 34,975 | $ (3,254) | ||
| |||||
Subsequent Events (Details) - Subsequent Event $ / shares in Units, shares in Thousands, $ in Thousands |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2026
USD ($)
shares
|
Jan. 01, 2026
USD ($)
$ / shares
|
|
| Subsequent Event [Line Items] | ||
| Subsequent Event, Date | Jan. 01, 2026 | |
| Subsequent Event, Description | the Company completed its acquisition FineMark, and immediately after the Merger, FineMark's wholly-owned subsidiary, FineMark National Bank & Trust merged into the Bank, with the Bank continuing as the surviving bank. | |
| FineMark Holdings, Inc. | ||
| Subsequent Event [Line Items] | ||
| Business Combination, Effective Date of Acquisition | Jan. 01, 2026 | |
| Business Combination, Consideration Transferred, Equity Interest, Share Issued, Value | $ 519,900 | |
| Business Combination, Price Per Share | $ / shares | $ 52.34 | |
| Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares | shares | 9,900 | |
| Business Combination, Preacquisition Equity Interest in Acquiree, Fair Value | $ 4,600 | |
| Business Combination, Consideration Transferred and Preacquisition Equity Interest in Acquiree | $ 524,500 | |
| Business Combination, Transaction Cost, Excluding Separately Recognized Transaction | $ 5,600 | |
| Preferred Stock, Convertible, Conversion Ratio | 36.3636 | |
| Business Combination, Common Stock Conversion Ratio | 0.7245 |