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Consolidated Statement of Cash Flows (Statement) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |
Net Income (Loss) Attributable to Parent | $ 151,420,000 | $ 126,734,000 | $ 148,351,000
Financing Receivable, Credit Loss, Expense (Reversal) | 14,543,000 | 2,904,000 | 4,557,000
Amortization of Deferred Loan Origination Fees, Net | (8,892,000) | (8,759,000) | (12,085,000)
Depreciation | 12,192,000 | 14,015,000 | 13,819,000
Accretion (Amortization) of Discounts and Premiums, Investments | 1,606,000 | 3,794,000 | 3,666,000
Deferred Income Tax Expense (Benefit) | (409,000) | (703,000) | 611,000
Gain (Loss) on Sale of Investments | (526,000) | (7,875,000) | 0
Gain on equity securities, net | 3,080,000 | 971,000 | 2,955,000
Share-based Payment Arrangement, Noncash Expense | 7,669,000 | 8,010,000 | 7,199,000
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement | (6,148,000) | 0 | 0
Payments for Loan Originations, Loans to be Sold in Secondary Market | 115,906,000 | 65,211,000 | 173,880,000
Proceeds From Loan Sales | 115,602,000 | 65,338,000 | 185,361,000
Gain (Loss) on Sale of Loans and Leases |  |  | 495,000
Gains (Losses) on Sales of Other Real Estate | 42,000 | (3,000) | 5,611,000
Real Estate Owned, Valuation Allowance, Valuation Increase | (30,000) | (60,000) | (12,039,000)
Gain (Loss) on Sale of Other Loans and Leases | 0 | 0 | (495,000)
Bank Owned Life Insurance Income | 7,770,000 | 5,338,000 | 6,100,000
Investment Program, Proportional Amortization Method, Applied, Amortization Expense | 8,126,000 | 8,265,000 | 7,743,000
Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] |  |  |
Increase (Decrease) in Other Operating Assets | (8,872,000) | (3,479,000) | 3,021,000
Increase (Decrease) in Other Operating Liabilities | 1,067,000 | (6,982,000) | (4,814,000)
Net cash provided by operating activities | 178,848,000 | 151,137,000 | 136,642,000
Payments for (Proceeds from) Federal Home Loan Bank Stock [Abstract] |  |  |
Proceeds from Sale of Federal Home Loan Bank Stock | 18,371,000 | 11,672,000 | 2,216,000
Payments to Acquire Federal Home Loan Bank Stock | (9,225,000) | (18,228,000) | 0
Proceeds from Sale, Maturity and Collection of Investments [Abstract] |  |  |
Proceeds from Sale of Debt Securities | 44,037,000 | 284,454,000 | 0
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale | 299,702,000 | 145,310,000 | 186,123,000
Proceeds from Sale of Other Real Estate | 1,095,000 | 965,000 | 17,684,000
Payments to Acquire Investments [Abstract] |  |  |
Payments to Acquire Debt Securities, Available-for-sale | 2,882,000 | 3,981,000 | 317,278,000
Payments to Acquire Available-for-sale Securities, Equity | 10,213,000 | 2,195,000 | 9,165,000
Payments for (Proceeds from) Investments | (1,288,000) | 1,886,000 | 331,000
Payments for (Proceeds from) Loans and Leases | 341,500,000 | 330,443,000 | 273,526,000
Proceeds from Sale of Other Loans Held-for-sale | 0 | 0 | 4,345,000
Proceeds from Life Insurance Policy | 12,466,000 | 1,816,000 | 9,587,000
Payment to Acquire Life Insurance Policy, Investing Activities | (9,937,000) | (10,779,000) | (7,500,000)
Payments for Affordable Housing Programs | 10,591,000 | 9,364,000 | 10,352,000
Payments to Acquire Property, Plant, and Equipment | 9,183,000 | 7,589,000 | 7,937,000
Net cash used in investing activities | (19,148,000) | 63,524,000 | (405,472,000)
Net Cash Provided by (Used in) Financing Activities [Abstract] |  |  |
Increase (Decrease) in Deposits | 214,961,000 | (386,901,000) | (456,929,000)
(Increase) decrease in one way sell deposits | (114,001,000) | 194,752,000 | 787,116,000
Proceeds from (Repayments of) Short-term Debt | (237,750,000) | 100,840,000 | (11,444,000)
Payments Related to Tax Withholding for Share-based Compensation | 3,116,000 | 2,844,000 | 2,761,000
Payments for Repurchase of Common Stock | 0 | 23,017,000 | 0
Payments of Ordinary Dividends | 77,496,000 | 68,951,000 | 76,604,000
Net cash (used in) provided by financing activities | (217,402,000) | (186,121,000) | 239,378,000
Cash and Cash Equivalents, Period Increase (Decrease), Total | (57,702,000) | 28,540,000 | (29,452,000)
Cash and Cash Equivalents, at Carrying Value, Beginning Balance | 218,268,000 | 189,728,000 | 219,180,000
Cash and Cash Equivalents, at Carrying Value, Ending Balance | 160,566,000 | 218,268,000 | 189,728,000
Supplemental Cash Flow Information [Abstract] |  |  |
Interest Paid, Excluding Capitalized Interest, Operating Activities | 123,947,000 | 95,183,000 | 30,818,000
Income Taxes Paid | 23,260,000 | 17,200,000 | 24,670,000
Noncash Investing and Financing Items [Abstract] |  |  |
Real Estate Owned, Transfer to Real Estate Owned | 1,008,000 | 1,097,000 | 13,418,000
Transfer of Portfolio Loans and Leases to Held-for-sale | 0 | 0 | 3,890,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 2,718,000 | 545,000 | 7,867,000
Affordable Housing Program Obligation, Period Increase (Decrease) | 11,500,000 | 10,000,000 | 10,000,000
Transfer to Investments | 2,500,000 | 2,745,000 | 16,250,000
Mortgages [Member] |  |  |
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |
Gain (Loss) on Sale of Loans and Leases | 2,011,000 | 1,213,000 | 4,243,000
Consumer Portfolio Segment [Member] |  |  |
Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] |  |  |
Increase (Decrease) in Prepaid Expense | $ 1,513,000 | $ (43,000) | $ (9,422,000)

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- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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- Definition Amount of increase (decrease) of obligation related to Affordable Housing Program (AHP) assessments required by the Federal Home Loan Bank Act of 1932. + References No definition available. + Details
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- Definition Amount of amortization expense for investment that generates income tax credit and other income tax benefit under tax credit program accounted for using proportional amortization method. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478156/740-323-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478156/740-323-50-1A + Details
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- Definition The net increase(decrease) in interest income during the period representing the allocation of deferred loan origination fees less deferred loan origination costs using the effective interest method over the term of the debt arrangement to which they pertain taking into account the effect of prepayments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 35 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481655/310-20-35-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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- Definition Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4 + Details
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- Definition Amount of increase (decrease) in cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; excluding effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 1 -SubTopic 230 -Topic 830 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477401/830-230-45-1 + Details
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- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)(Note 1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (b) -SubTopic 10 -Topic 740 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(7) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(7) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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