Securities - Summary of Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Securities available for sale [Abstract]
Amortized Cost	$ 491,779	$ 463,536
Gross unrealized gains	1,611	5,689
Gross unrealized (losses)	(32,832)	(9,829)
Estimated fair value	460,558	459,396
Securities held to maturity [Abstract]
Amortized Cost	1,775	1,782
Gross unrealized gains	16	48
Estimated fair value	1,791	1,830
U. S. government agency securities
Securities available for sale [Abstract]
Amortized Cost	16,617	11,550
Gross unrealized gains	0	47
Gross unrealized (losses)	(765)	(94)
Estimated fair value	15,852	11,503
State and municipal securities
Securities available for sale [Abstract]
Amortized Cost	79,352	81,158
Gross unrealized gains	782	2,107
Gross unrealized (losses)	(5,087)	(705)
Estimated fair value	75,047	82,560
Securities held to maturity [Abstract]
Amortized Cost	1,775	1,782
Gross unrealized gains	16	48
Estimated fair value	1,791	1,830
Mortgage-backed securities
Securities available for sale [Abstract]
Amortized Cost	326,297	300,398
Gross unrealized gains	156	2,008
Gross unrealized (losses)	(26,210)	(8,799)
Estimated fair value	300,243	293,607
Asset-backed securities
Securities available for sale [Abstract]
Amortized Cost	3,326	3,326
Gross unrealized gains	14
Gross unrealized (losses)		0
Estimated fair value	3,340	3,339
Other debt securities
Securities available for sale [Abstract]
Amortized Cost	66,187	67,104
Gross unrealized gains	659	1,514
Gross unrealized (losses)	(770)	(231)
Estimated fair value	$ 66,076	$ 68,387

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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Amount 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, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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