Securities - Available for Sale Securities With Gross Unrealized Losses and Their Fair Value (Details) $ in Thousands	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Held-to-maturity securities have been in a continuous unrealized loss position, number of positions	4	4
Held-to-maturity securities have been in a continuous unrealized loss position, fair value	$ 64,337	$ 62,550
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	10,076	12,261
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, fair value	0	62,550
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	0	$ 12,261
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, fair value	64,337
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 10,076
Securities have been in a continuous unrealized loss position, number of positions	188	166
Securities have been in a continuous unrealized loss position, fair value	$ 819,112	$ 718,869
Securities have been in a continuous unrealized loss position, unrealized losses	97,749	91,529
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	175,024	322,133
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	8,979	18,711
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	644,088	396,736
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 88,770	$ 72,818
Other Debt Obligations
Held-to-maturity securities have been in a continuous unrealized loss position, number of positions	3	3
Held-to-maturity securities have been in a continuous unrealized loss position, fair value	$ 57,326	$ 55,561
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	9,222	11,375
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, fair value	0	55,561
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	0	$ 11,375
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, fair value	57,326
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 9,222
Securities have been in a continuous unrealized loss position, number of positions	65	46
Securities have been in a continuous unrealized loss position, fair value	$ 453,607	$ 335,100
Securities have been in a continuous unrealized loss position, unrealized losses	28,249	21,489
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	156,037	218,024
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	7,776	8,986
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	297,570	117,076
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 20,473	$ 12,503
US States and Political Subdivisions Debt Securities [Member]
Held-to-maturity securities have been in a continuous unrealized loss position, number of positions	3	3
Held-to-maturity securities have been in a continuous unrealized loss position, fair value	$ 57,326	$ 55,561
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	9,222	11,375
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, fair value	0	55,561
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	0	$ 11,375
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, fair value	57,326
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 9,222
US Government Agencies Debt Securities [Member]
Securities have been in a continuous unrealized loss position, number of positions	8	7
Securities have been in a continuous unrealized loss position, fair value	$ 73,794	$ 77,856
Securities have been in a continuous unrealized loss position, unrealized losses	2,200	2,619
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	5,437	77,059
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	24	2,517
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	68,357	797
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 2,176	$ 102
Corporate Debt Securities [Member]
Securities have been in a continuous unrealized loss position, number of positions	26	20
Securities have been in a continuous unrealized loss position, fair value	$ 150,602	$ 131,766
Securities have been in a continuous unrealized loss position, unrealized losses	22,493	14,664
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	46,412	45,447
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	6,748	3,553
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	104,190	86,319
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 15,745	$ 11,111
Collateralized Loan Obligations [Member]
Securities have been in a continuous unrealized loss position, number of positions	31	19
Securities have been in a continuous unrealized loss position, fair value	$ 229,211	$ 125,478
Securities have been in a continuous unrealized loss position, unrealized losses	3,556	4,206
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	104,188	95,518
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1,004	2,916
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	125,023	29,960
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 2,552	$ 1,290
Collateralized Mortgage Backed Securities
Held-to-maturity securities have been in a continuous unrealized loss position, number of positions	1	1
Held-to-maturity securities have been in a continuous unrealized loss position, fair value	$ 7,011	$ 6,989
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	854	886
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, fair value	0	6,989
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	0	$ 886
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, fair value	7,011
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 854
Securities have been in a continuous unrealized loss position, number of positions	123	120
Securities have been in a continuous unrealized loss position, fair value	$ 365,505	$ 383,769
Securities have been in a continuous unrealized loss position, unrealized losses	69,500	70,040
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	18,987	104,109
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1,203	9,725
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	346,518	279,660
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 68,297	$ 60,315
REMIC and CMO [Member]
Securities have been in a continuous unrealized loss position, number of positions	47	47
Securities have been in a continuous unrealized loss position, fair value	$ 139,882	$ 148,120
Securities have been in a continuous unrealized loss position, unrealized losses	28,514	27,298
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	940	40,911
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	52	3,457
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	138,942	107,209
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 28,462	$ 23,841
GNMA [Member]
Securities have been in a continuous unrealized loss position, number of positions	10	8
Securities have been in a continuous unrealized loss position, fair value	$ 6,952	$ 7,133
Securities have been in a continuous unrealized loss position, unrealized losses	1,783	1,879
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	97	64
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	6,855	7,069
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 1,782	$ 1,879
FNMA [Member]
Held-to-maturity securities have been in a continuous unrealized loss position, number of positions	1	1
Held-to-maturity securities have been in a continuous unrealized loss position, fair value	$ 7,011	$ 6,989
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	854	886
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, fair value	0	6,989
Held-to-maturity securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	0	$ 886
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, fair value	7,011
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 854
Securities have been in a continuous unrealized loss position, number of positions	48	47
Securities have been in a continuous unrealized loss position, fair value	$ 141,717	$ 148,229
Securities have been in a continuous unrealized loss position, unrealized losses	23,347	24,425
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	7,493	38,296
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	399	3,871
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	134,224	109,933
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 22,948	$ 20,554
FHLMC [Member]
Securities have been in a continuous unrealized loss position, number of positions	18	18
Securities have been in a continuous unrealized loss position, fair value	$ 76,954	$ 80,287
Securities have been in a continuous unrealized loss position, unrealized losses	15,856	16,438
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	10,457	24,838
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	751	2,397
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	66,497	55,449
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 15,105	$ 14,041