Investment Securities - Schedule of Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 946,511	$ 372,231
Gross Unrealized Gains	3,562	8,997
Gross Unrealized Losses	(11,909)	(414)
Fair Value	938,164	380,814
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	88,638	245
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,087)	0
Fair Value	87,551	245
U.S. agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	17,916	1,000
Gross Unrealized Gains	5	4
Gross Unrealized Losses	(140)	0
Fair Value	17,781	1,004
State, county and municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	252,632	61,298
Gross Unrealized Gains	877	1,155
Gross Unrealized Losses	(3,356)	(65)
Fair Value	250,153	62,388
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	48,153	4,250
Gross Unrealized Gains	520	1
Gross Unrealized Losses	(265)	(1)
Fair Value	48,408	4,250
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	539,172	305,438
Gross Unrealized Gains	2,160	7,837
Gross Unrealized Losses	(7,061)	(348)
Fair Value	$ 534,271	$ 312,927

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).

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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).

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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).

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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