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Securities - Securities Available for Sale (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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The amortized cost and estimated fair value of securities with gross unrealized gains and losses |  |
Amortized cost | $ 615,292 | $ 596,497
Gross Unrealized Gains | 1,105 | 2,839
Gross Unrealized Losses | (63,321) | (50,723)
Fair value | 553,076 | 548,613
Asset Pledged as Collateral |  |
The amortized cost and estimated fair value of securities with gross unrealized gains and losses |  |
Fair value | 164,300 |
U.S. Treasury Securities |  |
The amortized cost and estimated fair value of securities with gross unrealized gains and losses |  |
Amortized cost | 2,883 | 2,621
Gross Unrealized Losses | (19) | (41)
Fair value | 2,864 | 2,580
Municipal Bonds |  |
The amortized cost and estimated fair value of securities with gross unrealized gains and losses |  |
Amortized cost | 148,725 | 156,506
Gross Unrealized Gains |  | 62
Gross Unrealized Losses | (26,228) | (25,214)
Fair value | 122,497 | 131,354
Mortgage-Backed Securities |  |
The amortized cost and estimated fair value of securities with gross unrealized gains and losses |  |
Amortized cost | 233,920 | 252,919
Gross Unrealized Gains | 137 | 2,465
Gross Unrealized Losses | (23,682) | (17,600)
Fair value | 210,375 | 237,784
Corporate Securities |  |
The amortized cost and estimated fair value of securities with gross unrealized gains and losses |  |
Amortized cost | 134,369 | 116,871
Gross Unrealized Gains | 268 | 45
Gross Unrealized Losses | (12,920) | (7,089)
Fair value | 121,717 | 109,827
SBA Securities |  |
The amortized cost and estimated fair value of securities with gross unrealized gains and losses |  |
Amortized cost | 19,779 | 20,957
Gross Unrealized Gains | 312 | 79
Gross Unrealized Losses | (125) | (159)
Fair value | 19,966 | 20,877
Asset-Backed Securities |  |
The amortized cost and estimated fair value of securities with gross unrealized gains and losses |  |
Amortized cost | 75,616 | 46,623
Gross Unrealized Gains | 388 | 188
Gross Unrealized Losses | (347) | (620)
Fair value | $ 75,657 | $ 46,191

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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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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of 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 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
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