Securities - Available for Sale Securities With Gross Unrealized Losses and Their Fair Value (Details) $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Securities have been in a continuous unrealized loss position, number of positions	81	37
Securities have been in a continuous unrealized loss position, fair value	$ 565,102	$ 290,820
Securities have been in a continuous unrealized loss position, unrealized losses	12,220	7,766
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	435,634	76,729
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	7,827	186
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	129,468	214,091
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 4,393	$ 7,580
US Government Agencies Debt Securities [Member]
Securities have been in a continuous unrealized loss position, number of positions	2	1
Securities have been in a continuous unrealized loss position, fair value	$ 5,577	$ 4,988
Securities have been in a continuous unrealized loss position, unrealized losses	9	1
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	1,130	4,988
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	5	$ 1
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	4,447
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 4
Corporate Debt Securities [Member]
Securities have been in a continuous unrealized loss position, number of positions	13	14
Securities have been in a continuous unrealized loss position, fair value	$ 94,234	$ 113,734
Securities have been in a continuous unrealized loss position, unrealized losses	3,189	6,266
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	65,453
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1,970
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	28,781	113,734
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 1,219	$ 6,266
Collateralized Loan Obligations [Member]
Securities have been in a continuous unrealized loss position, number of positions	4	13
Securities have been in a continuous unrealized loss position, fair value	$ 31,012	$ 99,199
Securities have been in a continuous unrealized loss position, unrealized losses	255	1,363
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	10,000	7,441
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1	52
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	21,012	91,758
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 254	$ 1,311
Other Debt Obligations [Member]
Securities have been in a continuous unrealized loss position, number of positions	19	28
Securities have been in a continuous unrealized loss position, fair value	$ 130,823	$ 217,921
Securities have been in a continuous unrealized loss position, unrealized losses	3,453	7,630
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	76,583	12,429
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1,976	53
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	54,240	205,492
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 1,477	$ 7,577
Collateralized Mortgage Backed Securities [Member]
Securities have been in a continuous unrealized loss position, number of positions	62	9
Securities have been in a continuous unrealized loss position, fair value	$ 434,279	$ 72,899
Securities have been in a continuous unrealized loss position, unrealized losses	8,767	136
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	359,051	64,300
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	5,851	133
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	75,228	8,599
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 2,916	$ 3
REMIC and CMO [Member]
Securities have been in a continuous unrealized loss position, number of positions	15
Securities have been in a continuous unrealized loss position, fair value	$ 124,131
Securities have been in a continuous unrealized loss position, unrealized losses	3,656
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	105,959
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	2,800
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	18,172
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 856
GNMA [Member]
Securities have been in a continuous unrealized loss position, number of positions	4	1
Securities have been in a continuous unrealized loss position, fair value	$ 9,924	$ 10,341
Securities have been in a continuous unrealized loss position, unrealized losses	316	22
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	1,138	10,341
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	16	$ 22
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	8,786
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 300
FNMA [Member]
Securities have been in a continuous unrealized loss position, number of positions	25	5
Securities have been in a continuous unrealized loss position, fair value	$ 171,109	$ 32,463
Securities have been in a continuous unrealized loss position, unrealized losses	2,160	31
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	153,657	23,864
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1,587	28
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	17,452	8,599
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 573	$ 3
FHLMC [Member]
Securities have been in a continuous unrealized loss position, number of positions	18	3
Securities have been in a continuous unrealized loss position, fair value	$ 129,115	$ 30,095
Securities have been in a continuous unrealized loss position, unrealized losses	2,635	83
Securities have been in a continuous unrealized loss position, less than 12 months, fair value	98,297	30,095
Securities have been in a continuous unrealized loss position, less than 12 months, unrealized losses	1,448	$ 83
Securities have been in a continuous unrealized loss position, 12 months or more, fair value	30,818
Securities have been in a continuous unrealized loss position, 12 months or more, unrealized losses	$ 1,187