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Securities Available for Sale (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | $ 1,516,841 | $ 1,534,512
Gross Unrealized Gains | 5,424 | 278
Gross Unrealized Losses | (222,564) | (266,765)
Fair Value | 1,299,701 | 1,268,025
U.S. Treasury and U.S. government sponsored entities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 145,439 | 149,712
Gross Unrealized Gains | 113 | 0
Gross Unrealized Losses | (17,597) | (21,616)
Fair Value | 127,955 | 128,096
State and political subdivisions |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 644,880 | 651,705
Gross Unrealized Gains | 4,792 | 266
Gross Unrealized Losses | (93,503) | (121,891)
Fair Value | 556,169 | 530,080
Corporate bonds |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 18,554 | 4,181
Gross Unrealized Gains | 187 | 0
Gross Unrealized Losses | (466) | (302)
Fair Value | 18,275 | 3,879
Mortgage-backed securities - residential |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 624,529 | 672,784
Gross Unrealized Gains | 1 | 12
Gross Unrealized Losses | (104,144) | (117,654)
Fair Value | 520,386 | 555,142
Collateralized mortgage obligations |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 80,227 | 52,291
Gross Unrealized Gains | 331 | 0
Gross Unrealized Losses | (6,559) | (4,937)
Fair Value | 73,999 | 47,354
Small Business Administration |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 3,212 | 3,839
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (295) | (365)
Fair Value | $ 2,917 | $ 3,474

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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