Securities - Unrealized Loss Positions (Details) $ in Thousands	Dec. 31, 2022 USD ($) security	Dec. 31, 2021 USD ($) security
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	194	241
Greater than 12 months in an unrealized loss position | security	299	11
Total | security	493	252
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 27,304	$ 4,230
Greater than 12 months in an unrealized loss position	96,526	885
Total	123,830	5,115
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	579,571	734,235
Greater than 12 months in an unrealized loss position	906,689	24,626
Total	$ 1,486,260	$ 758,861
U.S. Treasury
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	1	1
Greater than 12 months in an unrealized loss position | security	4
Total | security	5	1
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 1,025	$ 37
Greater than 12 months in an unrealized loss position	10,900
Total	11,925	37
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	24,121	49,719
Greater than 12 months in an unrealized loss position	188,008
Total	$ 212,129	$ 49,719
U.S. government agencies
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security		5
Greater than 12 months in an unrealized loss position | security	9	4
Total | security	9	9
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position		$ 592
Greater than 12 months in an unrealized loss position	$ 5,130	107
Total	5,130	699
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position		56,879
Greater than 12 months in an unrealized loss position	56,048	5,008
Total	$ 56,048	$ 61,887
Mortgage Backed Securities, Issued by US Government Agencies
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	15	63
Greater than 12 months in an unrealized loss position | security	117	1
Total | security	132	64
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 975	$ 505
Greater than 12 months in an unrealized loss position	14,623	65
Total	15,598	570
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	11,369	78,711
Greater than 12 months in an unrealized loss position	113,621	1,663
Total	$ 124,990	$ 80,374
States and political subdivisions
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	45	7
Greater than 12 months in an unrealized loss position | security	15	1
Total | security	60	8
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 5,800	$ 55
Greater than 12 months in an unrealized loss position	8,434	617
Total	14,234	672
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	128,770	8,430
Greater than 12 months in an unrealized loss position	48,877	4,051
Total	$ 177,647	$ 12,481
Corporate bonds
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security		2
Greater than 12 months in an unrealized loss position | security	2
Total | security	2	2
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position		$ 113
Greater than 12 months in an unrealized loss position	$ 378
Total	378	113
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position		9,887
Greater than 12 months in an unrealized loss position	9,622
Total	$ 9,622	$ 9,887
Collateralized mortgage obligations
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	80	133
Greater than 12 months in an unrealized loss position | security	120
Total | security	200	133
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 12,895	$ 2,285
Greater than 12 months in an unrealized loss position	49,674
Total	62,569	2,285
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	180,624	381,658
Greater than 12 months in an unrealized loss position	348,880
Total	$ 529,504	$ 381,658
Asset-backed Securities
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	30	20
Greater than 12 months in an unrealized loss position | security	21	3
Total | security	51	23
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 3,030	$ 608
Greater than 12 months in an unrealized loss position	5,436	53
Total	8,466	661
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	121,915	103,819
Greater than 12 months in an unrealized loss position	79,659	3,276
Total	$ 201,574	$ 107,095
Collateralized loan obligations.
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	23	10
Greater than 12 months in an unrealized loss position | security	11	2
Total | security	34	12
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 3,579	$ 35
Greater than 12 months in an unrealized loss position	1,951	43
Total	5,530	78
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	112,772	45,132
Greater than 12 months in an unrealized loss position	61,974	10,628
Total	$ 174,746	$ 55,760