Securities - Available for Sale Securities With Gross Unrealized Losses and Their Fair Value (Details) $ in Thousands	Mar. 31, 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	$ 67,869	$ 62,550
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	6,741	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	67,869
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 6,741
Securities have been in a continuous unrealized loss position, number of positions	176	166
Securities have been in a continuous unrealized loss position, fair value	$ 790,523	$ 718,869
Securities have been in a continuous unrealized loss position, unrealized losses	87,066	91,529
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	150,118	322,133
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	6,476	18,711
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	640,405	396,736
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 80,590	$ 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	$ 60,732	$ 55,561
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	6,008	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	60,732
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 6,008
Securities have been in a continuous unrealized loss position, number of positions	59	46
Securities have been in a continuous unrealized loss position, fair value	$ 411,042	$ 335,100
Securities have been in a continuous unrealized loss position, unrealized losses	22,774	21,489
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	128,289	218,024
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	5,442	8,986
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	282,753	117,076
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 17,332	$ 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	$ 60,732	$ 55,561
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	6,008	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	60,732
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 6,008
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	$ 73,930	$ 77,856
Securities have been in a continuous unrealized loss position, unrealized losses	2,060	2,619
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	5,506	77,059
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	20	2,517
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	68,424	797
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 2,040	$ 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	$ 156,581	$ 131,766
Securities have been in a continuous unrealized loss position, unrealized losses	16,471	14,664
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	58,591	45,447
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	4,529	3,553
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	97,990	86,319
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 11,942	$ 11,111
Collateralized Loan Obligations [Member]
Securities have been in a continuous unrealized loss position, number of positions	25	19
Securities have been in a continuous unrealized loss position, fair value	$ 180,531	$ 125,478
Securities have been in a continuous unrealized loss position, unrealized losses	4,243	4,206
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	64,192	95,518
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	893	2,916
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	116,339	29,960
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 3,350	$ 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	$ 7,137	$ 6,989
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	733	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	7,137
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 733
Securities have been in a continuous unrealized loss position, number of positions	117	120
Securities have been in a continuous unrealized loss position, fair value	$ 379,481	$ 383,769
Securities have been in a continuous unrealized loss position, unrealized losses	64,292	70,040
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	21,829	104,109
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1,034	9,725
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	357,652	279,660
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 63,258	$ 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	$ 146,030	$ 148,120
Securities have been in a continuous unrealized loss position, unrealized losses	25,683	27,298
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	3,315	40,911
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	101	3,457
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	142,715	107,209
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 25,582	$ 23,841
GNMA [Member]
Securities have been in a continuous unrealized loss position, number of positions	7	8
Securities have been in a continuous unrealized loss position, fair value	$ 7,106	$ 7,133
Securities have been in a continuous unrealized loss position, unrealized losses	1,766	1,879
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	41	64
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	0
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	7,065	7,069
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 1,766	$ 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	$ 7,137	$ 6,989
Held-to-maturity securities have been in a continuous unrealized loss position, unrealized loss	733	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	7,137
Held-to-maturity securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 733
Securities have been in a continuous unrealized loss position, number of positions	45	47
Securities have been in a continuous unrealized loss position, fair value	$ 146,490	$ 148,229
Securities have been in a continuous unrealized loss position, unrealized losses	22,057	24,425
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	7,598	38,296
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	312	3,871
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	138,892	109,933
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 21,745	$ 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	$ 79,855	$ 80,287
Securities have been in a continuous unrealized loss position, unrealized losses	14,786	16,438
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	10,875	24,838
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	621	2,397
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	68,980	55,449
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 14,165	$ 14,041