Securities - Available for Sale, Gross Unrealized Losses and Fair Values (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	$ 15,228	$ 275,781
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	394	19,984
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	710,035	490,301
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	73,151	67,361
Total, fair value	725,263	766,082
Total, unrealized losses	73,545	87,345
U.S. agency
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	327	8,244
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	1	799
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	9,845	2,587
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	994	301
Total, fair value	10,172	10,831
Total, unrealized losses	995	1,100
U.S. agency residential mortgage-backed
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	3,312	33,784
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	67	1,920
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	81,661	54,793
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	9,868	8,341
Total, fair value	84,973	88,577
Total, unrealized losses	9,935	10,261
U.S. agency commercial mortgage-backed
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	0	1,609
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	0	73
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	12,911	11,844
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	1,573	1,521
Total, fair value	12,911	13,453
Total, unrealized losses	1,573	1,594
Private label mortgage-backed
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	4,301	39,954
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	219	2,582
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	85,422	53,346
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	8,201	6,014
Total, fair value	89,723	93,300
Total, unrealized losses	8,420	8,596
Other asset backed
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	3,911	110,859
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	34	2,657
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	148,064	83,802
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	3,685	3,373
Total, fair value	151,975	194,661
Total, unrealized losses	3,719	6,030
Obligations of states and political subdivisions
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	65	56,455
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	0	10,216
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	299,535	231,705
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	40,889	40,349
Total, fair value	299,600	288,160
Total, unrealized losses	40,889	50,565
Corporate
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	3,312	24,876
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	73	1,737
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	71,677	51,293
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	7,880	7,414
Total, fair value	74,989	76,169
Total, unrealized losses	7,953	9,151
Trust preferred
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, fair values, less than 12 months	0	0
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, less than 12 months	0	0
Debt securities, available-for-sale, continuous unrealized loss position, fair values, 12 months or longer	920	931
Debt securities, available-for-sale, continuous unrealized loss position, gross unrealized losses, 12 months or longer	61	48
Total, fair value	920	931
Total, unrealized losses	$ 61	$ 48