Investment Securities - Schedule of Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Marketable Securities [Line Items]
Amortized Cost	$ 684,917	$ 825,047
Gross Unrealized Gains	4	54
Gross Unrealized Losses	(57,804)	(70,633)
Fair Value	627,117	754,468
State and political subdivisions
Marketable Securities [Line Items]
Amortized Cost	235,297	317,376
Gross Unrealized Gains	4	54
Gross Unrealized Losses	(16,266)	(22,304)
Fair Value	219,035	295,126
Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises
Marketable Securities [Line Items]
Amortized Cost	188,307	205,175
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(30,508)	(31,236)
Fair Value	157,799	173,939
Corporate bonds
Marketable Securities [Line Items]
Amortized Cost	111,109	96,348
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(8,769)	(11,251)
Fair Value	102,340	85,097
Treasury securities
Marketable Securities [Line Items]
Amortized Cost	109,836	158,935
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,115)	(3,652)
Fair Value	108,721	155,283
Asset backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises
Marketable Securities [Line Items]
Amortized Cost	40,368	47,213
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,146)	(2,190)
Fair Value	$ 39,222	$ 45,023

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).

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

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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

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Amortized cost excluding accrued interest, after 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/2009/role/commonPracticeRef
-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

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