Securities - Carrying Value (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Amortized Cost
One to five years	$ 34,545
Five to ten years	56,269
After ten years	74,521
Amortized Cost	165,335
Amortized cost	486,632	$ 606,507
Held-to-maturity securities, One to five years	11,172
Held-to-maturity securities, Five to ten years	39,233
Held-to-maturity securities, After ten years	11,136
Held-to-maturity securities, Amortized Cost			$ 61,541
Debt Securities, Held-to-maturity	163,370	59,565
Fair Value
One to five years	34,808
Five to ten years	55,141
After ten years	73,697
Fair Value	163,646
Fair Value	465,288	603,044
Held-to-maturity securities, One to five years	11,149
Held-to-maturity securities, Five to ten years	39,553
Held-to-maturity securities, After ten years	10,910
Held-to-maturity securities, Fair Value			$ 61,612
Held-to-maturity, at fair value	159,971	61,468
Agency mortgage-backed securities - residential
Amortized Cost
Amortized cost	276,392	377,928
Debt Securities, Held-to-maturity	95,982
Fair Value
Fair Value	257,682	373,236
Held-to-maturity, at fair value	92,939
Private label mortgage-backed securities - residential
Amortized Cost
Amortized cost	15,090	15,902
Fair Value
Fair Value	14,818	16,021
Asset-backed securities
Amortized Cost
Amortized cost	5,000	5,000
Fair Value
Fair Value	$ 4,986	$ 5,004