Securities - Summary of Securities with Unrealized Losses and Length of Time Continuous Loss Positions (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months, Estimated fair value	$ 238,799	$ 204,049
Less than 12 months, Gross unrealized losses	(19,036)	(5,821)
12 months or more, Estimated fair value	169,406	91,439
12 months or more, Gross unrealized losses	(31,470)	(4,008)
Total, Estimated fair value	408,205	295,488
Total, Gross unrealized losses	(50,506)	(9,829)
U. S. government agency securities
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months, Estimated fair value	12,352	2,560
Less than 12 months, Gross unrealized losses	(786)	(20)
12 months or more, Estimated fair value	2,451	2,737
12 months or more, Gross unrealized losses	(281)	(74)
Total, Estimated fair value	14,803	5,297
Total, Gross unrealized losses	(1,067)	(94)
State and municipal securities
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months, Estimated fair value	41,541	15,309
Less than 12 months, Gross unrealized losses	(5,524)	(279)
12 months or more, Estimated fair value	12,055	12,768
12 months or more, Gross unrealized losses	(2,611)	(426)
Total, Estimated fair value	53,596	28,077
Total, Gross unrealized losses	(8,135)	(705)
Mortgage-backed securities
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months, Estimated fair value	133,362	155,805
Less than 12 months, Gross unrealized losses	(11,345)	(5,291)
12 months or more, Estimated fair value	145,912	75,934
12 months or more, Gross unrealized losses	(28,254)	(3,508)
Total, Estimated fair value	279,274	231,739
Total, Gross unrealized losses	(39,599)	(8,799)
Asset-backed securities
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months, Estimated fair value	3,252
Less than 12 months, Gross unrealized losses	(76)
Total, Estimated fair value	3,252
Total, Gross unrealized losses	(76)
Other debt securities
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months, Estimated fair value	48,292	30,375
Less than 12 months, Gross unrealized losses	(1,305)	(231)
12 months or more, Estimated fair value	8,988
12 months or more, Gross unrealized losses	(324)
Total, Estimated fair value	57,280	30,375
Total, Gross unrealized losses	$ (1,629)	$ (231)