Document and Entity Information Document Type Document Quarterly Report Document Period End Date Document Transition Report Securities Act File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag CONSOLIDATED STATEMENTS OF CONDITION Assets [Abstract] Assets: Assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents (includes restricted cash of $14,760) Debt Securities, Available-for-Sale, Excluding Accrued Interest Available-for-sale investment securities, includes pledged securities that can be sold or repledged of $318,329 and $319,478, respectively (cost of $3,237,809 and $3,148,728, respectively) Fair Value Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Current Held-to-maturity securities, includes pledged securities that can be sold or repledged of $9,090 and $0, respectively (fair value of $1,372,481 and $1,370,464, respectively) Fair value of other investments and equity securities. Other Investment and Equity Securities, Fair Value Equity and other securities Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Total Loans Loans Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Allowance for credit losses Ending balance Beginning balance Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Net loans Loans, net of allowance for credit losses Goodwill Goodwill Intangible assets, net of accumulated amortization, related to bank deposits belonging to an acquired bank that can be counted on as a stable source of lending funds, net of accumulated amortization. These deposits have the following attributes: predictable costs and low sensitivity to interest rates. This intangible asset is usually amortized over its estimated useful life. Core Deposit Intangibles Net Core deposit intangibles, net The carrying amount, net of accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit. Other Finite Lived Intangible Assets Net Other intangibles, net Intangible Assets, Net (Including Goodwill) Goodwill and intangible assets, net Property, Plant and Equipment, Net Premises and equipment, net Interest Receivable Accrued interest and fees receivable Equity Method Investments Equity method investments Other Assets Other assets Assets Total assets Segment assets Liabilities [Abstract] Liabilities: Noninterest-Bearing Deposit Liabilities Noninterest-bearing deposits Interest-Bearing Deposit Liabilities Interest-bearing deposits Deposits. Total deposits Borrowings from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and also in times of liquidity shortages. The member institution executes a promissory note, which is generally collateralized by government securities to the Federal Reserve or loans. Federal Home Loan Bank Overnight Advance Overnight borrowings Securities Sold under Agreements to Repurchase Securities sold under agreement to repurchase, short-term Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer and other borrowings. Federal Home Loan Bank Advances Long Term And Other Borrowings Federal Home Loan Bank and other borrowings Accrued interest on deposits and other liabilities as of the date of the balance sheet of the reporting entity. Accrued Interest And Other Liabilities Accrued interest and other liabilities Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies (See Note H) Equity, Attributable to Parent [Abstract] Shareholders' equity: Preferred Stock, Value, Outstanding Preferred stock, $1.00 par value, 500,000 shares authorized, 0 shares issued Common Stock, Value, Outstanding Common stock, $1.00 par value, 75,000,000 shares authorized; 55,067,544 and 54,907,426 shares issued, respectively Additional Paid in Capital Additional paid in capital Retained Earnings (Accumulated Deficit) Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Accumulated other comprehensive loss Treasury Stock, Value Treasury stock, at cost (2,469,140 shares, including 79,939 shares held by deferred compensation arrangements at June 30, 2026, and 2,225,209 shares including 94,479 shares held by deferred compensation arrangements at December 31, 2025) Deferred Compensation Arrangement with Individual, Recorded Liability Deferred compensation arrangements (79,939 and 94,479 shares, respectively) Equity, Attributable to Parent Balance Balance Total shareholders' equity Liabilities and Equity Total liabilities and shareholders' equity Financial Instruments Owned and Pledged as Collateral [Table] Pledged Status [Axis] Pledged Status [Domain] Asset Pledged as Collateral with Right [Member] Financial Instruments Owned and Pledged as Collateral [Line Items] Restricted Cash Restricted cash Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss, Current Available for sale, amortized cost Debt Securities, Held-to-Maturity, Fair Value Held-to-maturity securities, fair value Fair Value Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Issued Preferred stock, shares issued Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Treasury Stock, Common, Shares Treasury stock, shares at cost Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance Shares held by deferred compensation arrangements CONSOLIDATED STATEMENTS OF INCOME Statement [Table] Statement [Line Items] Statement Interest and Dividend Income, Operating [Abstract] Interest income: Interest and Fee Income, Loans and Leases Interest and fees on loans Interest Income, Securities, Operating, Taxable Interest and dividends on taxable investments Interest Income, Securities, Operating, Tax Exempt Interest and dividends on nontaxable investments Interest and Dividend Income, Operating Interest income Total interest income Interest Expense, Operating and Nonoperating [Abstract] Interest expense: Interest Expense, Deposits Interest on deposits Interest expense incurred on borrowings excluding junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. Interest Expense, Borrowings Excluding Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Interest on borrowings Interest Expense, Operating Total interest expense Interest Income (Expense), Operating Net interest income Net interest income from external customers Provision for Loan, Lease, and Other Losses Provision for credit losses Interest Income (Expense), after Provision for Loan Loss Net interest income after provision for credit losses Noninterest Income [Abstract] Noninterest revenues: The non-interest income earned from account activity fees, monthly service fees, check orders, debit and credit card income, ATM fees, Merchant services income and other revenues from processing wire transfers, bill pay service, cashier's checks and foreign exchange. Deposit Service Fees Deposit service fees Fees and Commissions, Mortgage Banking and Servicing Mortgage banking Revenues pertaining to bank-related activities not specified elsewhere. Other Banking Services Other banking services Revenues related to employee benefit services. Employee Benefit Services Employee benefit services Insurance Services Revenue Insurance services Fee income charged during the period for wealth management services. Wealth Management Services Wealth management services Equity Securities, FV-NI, Gain (Loss) Gain on equity securities Net (loss) gain recognized on equity securities Income (Loss) from Equity Method Investments Loss from equity method investments Loss from equity method investments Equity in net loss of investees accounted for by the equity method Noninterest Income Total noninterest revenues Noninterest revenues from external segments Noninterest Expense [Abstract] Noninterest expenses: Labor and Related Expense Salaries and employee benefits Communications and Information Technology Data processing and communications Occupancy, Net Occupancy and equipment Business Development Business development and marketing Professional Fees Legal and professional fees Amortization of Intangible Assets Amortization of intangible assets Amortization of intangible assets Amortization of intangible assets Other Noninterest Expense Other expenses Noninterest Expense Total noninterest expenses Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Operating income before income taxes Income before income taxes Income Tax Expense (Benefit) Income taxes Net income Net income Earnings Per Share, Basic Basic earnings per share (in dollars per shares) Earnings Per Share, Diluted Diluted earnings per share (in dollars per shares) CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent [Abstract] Pension and other post-retirement obligations: Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Amortization of actuarial losses (gains) included in net periodic pension cost, gross Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax Tax effect Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Amortization of actuarial losses (gains) included in net periodic pension cost, net Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax Amortization of prior service cost included in net periodic pension cost, gross Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax Tax effect Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax Amortization of prior service cost included in net periodic pension cost, net Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Other comprehensive income related to pension and other post-retirement obligations, net of taxes No definition available. Other Comprehensive Income (Loss), Investment Securities Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Net unrealized holding (losses) gains on investment securities: Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, before Tax, Portion Attributable to Parent Net unrealized holding (losses) gains on investment securities, gross Other Comprehensive Income (Loss), Available-for-Sale Securities, Tax, Portion Attributable to Parent Tax effect Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Other comprehensive gain (loss) related to unrealized gains on investment securities, net of taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent [Abstract] Derivatives designated as hedging instruments: Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Net unrealized losses on cash flow hedges, gross Amounts recorded in OCI Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax Tax effect Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Net unrealized losses on cash flow hedges, net Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Reclassification adjustment for realized losses included in net income on cash flow hedges, gross Amounts reclassified from AOCI to income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Tax effect Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Reclassification adjustment for realized losses included in net income on cash flow hedges, net of taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Other comprehensive loss related to cash flow hedges, net of taxes Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income (loss), net of tax Other comprehensive (loss) income, net of taxes Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Loss by Component: The gross gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Gross of Tax Unrecognized prior service cost and net actuarial losses on pension and other post-retirement obligations The tax effect of gross gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax Effect Tax effect Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Net unrecognized prior service cost and net actuarial losses on pension and other post-retirement obligations Accumulated appreciation or loss, in value of the total of available-for-sale securities at the end of an accounting period, before tax. Accumulated Other Comprehensive Income (Loss), Available For Sale Securities Adjustment, Gross Unrealized loss on investment securities The tax effect of accumulated appreciation or loss in value of the total of available-for-sale securities at the end of an accounting period. Accumulated Other Comprehensive Income (Loss), Available For Sale Securities Adjustment, Tax Effect Tax effect AOCI, Debt Securities, Available-for-Sale, Adjustment, after Tax Net unrealized loss on investment securities Amount, before tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax, Before Tax Unrealized loss on cash flow hedges Amount, tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax, Tax Tax effect AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax Net unrealized loss on cash flow hedges CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Common Stock [Member] Common Stock Additional Paid-in Capital [Member] Additional Paid-In Capital Retained Earnings [Member] Retained Earnings AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Loss Treasury Stock, Common [Member] Treasury Stock Deferred Compensation, Share-Based Payments [Member] Deferred Compensation Arrangements Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Common Stock, Shares, Outstanding Balance (in shares) Balance (in shares) Dividends [Abstract] Dividends declared: Dividends, Common Stock Common Aggregate value of stock issued during the period as a result of employee stock ownership plan (ESOP), net of impact of the net settlement of tax withholding obligations. Stock Issued During Period, Value, Employee Stock Ownership Plan, Net of Impact of Net Settlement of Tax Withholding Obligations Common stock activity under employee stock plans Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan (ESOP), net of impact of the net settlement of tax withholding obligations. Stock Issued During Period, Shares, Employee Stock Ownership Plan, Net of Impact of Net Settlement of Tax Withholding Obligations Common stock activity under employee stock plans (in shares) APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock-based compensation Aggregate value of stock issued during the period as a result of distribution of stock under deferred compensation arrangements. Stock Issued During Period, Value, Deferred Compensation Arrangements Distribution of stock under deferred compensation arrangements Number of shares of stock issued in connection with distribution of stock under deferred compensation arrangements. Stock Issued During Period, Shares, Deferred Compensation Arrangements Distribution of stock under deferred compensation arrangements (in shares) Equity impact of the cost of common and preferred stock that were repurchased and issued to deferred compensation arrangements during the period. Recorded using the cost method. Treasury Stock, Value, Acquired and Issued to Deferred Compensation Arrangements, Cost Method Treasury stock purchased Number of shares that have been repurchased and issued to deferred compensation arrangements during the period and are being held in treasury. Treasury Stock, Shares, Acquired and Issued to Deferred Compensation Arrangements Treasury stock purchased (in shares) Common Stock, Dividends, Per Share, Declared Dividends declared per common share (in dollars per share) Cash dividends declared per share (in dollars per share) CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] Operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Depreciation Depreciation The sum of periodic adjustments charged to earnings related to securities, loans, finance leases and borrowings. As a noncash item this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. Accretion Amortization on Securities, Loans, Finance Leases and Borrowings Net amortization on securities, loans, finance leases and borrowings Share-Based Payment Arrangement, Noncash Expense Stock-based compensation Amortization of Mortgage Servicing Rights (MSRs) Amortization of mortgage servicing rights Bank Owned Life Insurance Income Income from bank-owned life insurance policies The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans and leases and other assets that were sold during the reporting period. This element refers to the gain (loss) and not to the cash proceeds of the sales. This element is a adjustment to net income when calculating net cash generated by operating activities using the indirect method. Net Gain Loss on Sale of Loans and Other Assets Net gain on sale of assets Increase (Decrease) in Other Operating Assets and Liabilities, Net Change in other assets and liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Investing activities: Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Proceeds from maturities, calls, and paydowns of available-for-sale investment securities Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Proceeds from maturities, calls, and paydowns of held-to-maturity investment securities Proceeds from Maturities, Prepayments and Calls of Other Investments Proceeds from maturities and redemptions of equity and other investment securities, net Payments to Acquire Held-to-Maturity Securities Purchases of held-to-maturity investment securities The cash inflow from sales of equity and other securities. Proceeds From Sales Of Acquire Equity And Other Securities Proceeds from sales of equity and other investment securities The cash outflow to acquire equity and other securities. Payments to Acquire Equity and Other Securities Purchases of equity and other securities, net Payments for (Proceeds from) Loans and Leases Net (increase) decrease in loans