Securities - Continuous Unrealized Loss Position (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($) security	Dec. 31, 2021 USD ($) security
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	$ 382,496	$ 102,043
Less Than 12 Months, Unrealized Losses	(27,231)	(1,539)
12 Months or Greater, Fair Value	108,974	57,951
12 Months or Greater, Unrealized Losses	(20,741)	(1,812)
Fair Value	491,470	159,994
Unrealized Losses	$ (47,972)	$ (3,351)
Number of debt securities with unrealized losses | security	564	199
Percentage of aggregate depreciation from amortized cost basis	8.90%	2.10%
U.S. Treasury Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	$ 2,338	$ 754
Less Than 12 Months, Unrealized Losses	(36)	(2)
Fair Value	2,338	754
Unrealized Losses	(36)	(2)
Municipal Bonds
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	135,714	44,332
Less Than 12 Months, Unrealized Losses	(16,465)	(708)
12 Months or Greater, Fair Value	31,839	3,757
12 Months or Greater, Unrealized Losses	(9,455)	(80)
Fair Value	167,553	48,089
Unrealized Losses	(25,920)	(788)
Mortgage-Backed Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	125,805	36,921
Less Than 12 Months, Unrealized Losses	(6,300)	(630)
12 Months or Greater, Fair Value	54,041	35,949
12 Months or Greater, Unrealized Losses	(10,096)	(1,481)
Fair Value	179,846	72,870
Unrealized Losses	(16,396)	(2,111)
Corporate Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	93,186	9,398
Less Than 12 Months, Unrealized Losses	(4,098)	(133)
12 Months or Greater, Fair Value	9,549	1,948
12 Months or Greater, Unrealized Losses	(922)	(52)
Fair Value	102,735	11,346
Unrealized Losses	(5,020)	(185)
SBA Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	1,071	3,896
Less Than 12 Months, Unrealized Losses	(2)	(7)
12 Months or Greater, Fair Value	10,645	16,297
12 Months or Greater, Unrealized Losses	(139)	(199)
Fair Value	11,716	20,193
Unrealized Losses	(141)	(206)
Asset-Backed Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	24,382	6,742
Less Than 12 Months, Unrealized Losses	(330)	(59)
12 Months or Greater, Fair Value	2,900
12 Months or Greater, Unrealized Losses	(129)
Fair Value	27,282	6,742
Unrealized Losses	$ (459)	$ (59)