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Consolidated Statement of Cash Flows (Statement) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |
Net Income (Loss) Attributable to Parent | $ 126,734,000 | $ 148,351,000 | $ 153,945,000
Provision for (recovery of) credit losses | 2,904,000 | 4,557,000 | (11,916,000)
Amortization of Deferred Loan Origination Fees, Net | (8,759,000) | (12,085,000) | (25,185,000)
Goodwill, Purchase Accounting Adjustments | 664,000 | (334,000) | (1,519,000)
Depreciation | 14,015,000 | 13,819,000 | 13,267,000
Accretion (Amortization) of Discounts and Premiums, Investments | 3,794,000 | 3,666,000 | 2,174,000
Deferred Income Tax Expense (Benefit) | (703,000) | 611,000 | (3,131,000)
Gain (Loss) on Sale of Investments | (7,875,000) | 0 | 0
Gain on equity securities, net | 971,000 | 2,955,000 | 5,011,000
Share-based Payment Arrangement, Noncash Expense | 8,010,000 | 7,199,000 | 8,021,000
Payments for Loan Originations, Loans to be Sold in Secondary Market | 65,211,000 | 173,880,000 | 569,080,000
Proceeds From Loan Sales | 65,338,000 | 185,361,000 | 609,377,000
Gain (Loss) on Sale of Loans and Leases |  | 495,000 |
Gains (Losses) on Sales of Other Real Estate | (3,000) | 5,611,000 | (4,000)
Real Estate Owned, Valuation Allowance, Valuation Increase | (60,000) | (12,039,000) | (64,000)
Gain (Loss) on Sale of Other Loans and Leases | 0 | (495,000) | 0
Bank Owned Life Insurance Income | 5,338,000 | 6,100,000 | 4,897,000
Amortization Method Qualified Affordable Housing Project Investments, Amortization | 8,265,000 | 7,743,000 | 7,313,000
Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] |  |  |
Increase (Decrease) in Other Operating Assets | (2,182,000) | 4,467,000 | (12,406,000)
Increase (Decrease) in Other Operating Liabilities | (6,982,000) | (4,814,000) | (7,939,000)
Net cash provided by operating activities | 150,504,000 | 134,862,000 | 157,332,000
Net Cash Provided by (Used in) Investing Activities [Abstract] |  |  |
Proceeds from Sale of Federal Home Loan Bank Stock | 11,672,000 | 2,216,000 | 8,677,000
Proceeds from Sale of Debt Securities | 284,454,000 | 0 | 934,000
Proceeds from Sale, Maturity and Collection of Investments [Abstract] |  |  |
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale | 145,310,000 | 186,123,000 | 232,197,000
Payments to Acquire Investments [Abstract] |  |  |
Payments to Acquire Debt Securities, Available-for-sale | 3,981,000 | 317,278,000 | 953,900,000
Payments to Acquire Available-for-sale Securities, Equity | 2,195,000 | 9,165,000 | 0
Payments to Acquire Federal Home Loan Bank Stock | (18,228,000) | 0 | 0
Payments for (Proceeds from) Investments | 1,886,000 | 331,000 | 2,597,000
Payments for (Proceeds from) Loans and Leases | 329,810,000 | 271,753,000 | (312,187,000)
Proceeds from Sale of Other Loans Held-for-sale | 0 | 4,345,000 | 3,718,000
Proceeds from Sale of Other Real Estate | 965,000 | 17,684,000 | 758,000
Proceeds from Life Insurance Policy | 1,816,000 | 9,587,000 | 5,598,000
Payment to Acquire Life Insurance Policy, Investing Activities | (10,779,000) | (7,500,000) | 0
Payments for Affordable Housing Programs | 9,364,000 | 10,352,000 | 10,814,000
Payments to Acquire Property, Plant, and Equipment | 7,589,000 | 7,937,000 | 14,093,000
Net cash used in investing activities | 64,157,000 | (403,699,000) | (412,141,000)
Net Cash Provided by (Used in) Financing Activities [Abstract] |  |  |
Increase (Decrease) in Deposits | (386,901,000) | (456,922,000) | 605,168,000
(Increase) decrease in one way sell deposits | 194,752,000 | 787,116,000 | (272,952,000)
Proceeds from (Repayments of) Short-term Debt | 100,840,000 | (11,444,000) | (103,444,000)
Repayments of Long-term Debt | 0 | 0 | 32,500,000
Payments Related to Tax Withholding for Share-based Compensation | 2,844,000 | 2,761,000 | 2,403,000
Payments for Repurchase of Common Stock | 23,017,000 | 0 | 16,048,000
Payments of Ordinary Dividends | 68,951,000 | 76,604,000 | 74,306,000
Net cash (used in) provided by financing activities | (186,121,000) | 239,385,000 | 103,515,000
Cash and Cash Equivalents, Period Increase (Decrease), Total | 28,540,000 | (29,452,000) | (151,294,000)
Cash and Cash Equivalents, at Carrying Value, Beginning Balance | 189,728,000 | 219,180,000 | 370,474,000
Cash and Cash Equivalents, at Carrying Value, Ending Balance | 218,268,000 | 189,728,000 | 219,180,000
Supplemental Cash Flow Information [Abstract] |  |  |
Interest Paid, Excluding Capitalized Interest, Operating Activities | 95,183,000 | 30,818,000 | 16,704,000
Income Taxes Paid | 17,200,000 | 24,670,000 | 25,505,000
Noncash Investing and Financing Items [Abstract] |  |  |
Real Estate Owned, Transfer to Real Estate Owned | 1,097,000 | 13,418,000 | 150,000
Transfer of Portfolio Loans and Leases to Held-for-sale | 0 | 3,890,000 | 3,718,000
Other Significant Noncash Transaction, Value of Consideration Received | 545,000 | 7,867,000 | 1,190,000
Affordable Housing Program Obligation, Period Increase (Decrease) | 10,000,000 | 10,000,000 | 10,000,000
Transfer to Investments | 2,745,000 | 16,250,000 | 3,000,000
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 | 1,213,000 | 4,243,000 | 18,018,000
Consumer Portfolio Segment [Member] |  |  |
Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] |  |  |
Increase (Decrease) in Prepaid Expense | $ (43,000) | $ (9,422,000) | $ (2,415,000)

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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 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 Amount of cash inflow from the sale of other assets recognized in investing activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 12 -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -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 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479886/946-10-S99-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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