Investment Securities - Held-to-maturity Securities by Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	$ 336
Debt securities, maturing 1 to 5 years, amortized cost	38,632
Debt securities, maturing 5 to 10 years, amortized cost	32,814
Debt securities, maturing over 10 years, amortized cost	329,224
Amortized Cost	401,006	$ 374,415
Debt securities, maturing within 1 year, fair value	335
Debt securities, maturing 1 to 5 years, fair value	37,845
Debt securities, maturing 5 to 10 years, fair value	29,050
Debt securities, maturing over 10 years, fair value	273,858
Debt securities, held-to-maturity, fair value	$ 341,088	369,955
Held-to-maturity securities, maturing within 1 year, weighted average yield	1.46%
Held-to-maturity securities, maturing 1 to 5 years, weighted average yield	2.11%
Held-to-maturity securities, maturing 6 to 10 years, weighted average yield	1.65%
Held-to-maturity securities, maturing over 10 years, weighted average yield	1.85%
Held-to-maturity securities, total weighted average yield	1.85%
U.S. government sponsored agencies
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	$ 0
Debt securities, maturing 1 to 5 years, amortized cost	19,151
Debt securities, maturing 5 to 10 years, amortized cost	2,174
Debt securities, maturing over 10 years, amortized cost	29,665
Amortized Cost	50,990	36,431
Debt securities, maturing within 1 year, fair value	0
Debt securities, maturing 1 to 5 years, fair value	18,707
Debt securities, maturing 5 to 10 years, fair value	1,918
Debt securities, maturing over 10 years, fair value	23,813
Debt securities, held-to-maturity, fair value	44,438	35,513
States and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	0
Debt securities, maturing 1 to 5 years, amortized cost	5,207
Debt securities, maturing 5 to 10 years, amortized cost	9,241
Debt securities, maturing over 10 years, amortized cost	136,872
Amortized Cost	151,320	151,688
Debt securities, maturing within 1 year, fair value	0
Debt securities, maturing 1 to 5 years, fair value	4,943
Debt securities, maturing 5 to 10 years, fair value	8,067
Debt securities, maturing over 10 years, fair value	109,068
Debt securities, held-to-maturity, fair value	122,078	150,138
Residential mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	0
Debt securities, maturing 1 to 5 years, amortized cost	1,308
Debt securities, maturing 5 to 10 years, amortized cost	0
Debt securities, maturing over 10 years, amortized cost	110,787
Amortized Cost	112,095	110,708
Debt securities, maturing within 1 year, fair value	0
Debt securities, maturing 1 to 5 years, fair value	1,302
Debt securities, maturing 5 to 10 years, fair value	0
Debt securities, maturing over 10 years, fair value	98,668
Debt securities, held-to-maturity, fair value	99,970	110,159
Commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, maturing within 1 year, amortized cost	336
Debt securities, maturing 1 to 5 years, amortized cost	12,966
Debt securities, maturing 5 to 10 years, amortized cost	21,399
Debt securities, maturing over 10 years, amortized cost	51,900
Amortized Cost	86,601	75,588
Debt securities, maturing within 1 year, fair value	335
Debt securities, maturing 1 to 5 years, fair value	12,893
Debt securities, maturing 5 to 10 years, fair value	19,065
Debt securities, maturing over 10 years, fair value	42,309
Debt securities, held-to-maturity, fair value	$ 74,602	$ 74,145