Securities - Debt Securities with Unrealized Losses in Continuous Unrealized Loss Position (Details) $ in Thousands	Sep. 30, 2022 USD ($) security	Dec. 31, 2021 USD ($) security
Available-for-sale securities
Estimated Fair Value	$ 368,832	$ 238,782
Unrealized Losses	(28,851)	(3,454)
Estimated Fair Value	181,373	55,528
Unrealized Losses	(31,428)	(1,227)
Estimated Fair Value	550,205	294,310
Unrealized Losses	$ (60,279)	$ (4,681)
Number of Securities | security	219	51
Held-to-maturity:
Estimated Fair Value	$ 33,872
Unrealized Losses	(5,057)
Estimated Fair Value	0
Unrealized Losses	0
Estimated Fair Value	33,872	$ 0
Unrealized Losses	$ (5,057)
Number of Securities | security	23
U.S. treasury
Available-for-sale securities
Estimated Fair Value	$ 25,690	35,185
Unrealized Losses	(975)	(215)
Estimated Fair Value	30,928	0
Unrealized Losses	(4,428)	0
Estimated Fair Value	56,618	35,185
Unrealized Losses	$ (5,403)	$ (215)
Number of Securities | security	10	4
U.S. agency
Available-for-sale securities
Estimated Fair Value	$ 0	$ 0
Unrealized Losses	0	0
Estimated Fair Value	3,201	5,919
Unrealized Losses	(41)	(100)
Estimated Fair Value	3,201	5,919
Unrealized Losses	$ (41)	$ (100)
Number of Securities | security	7	7
Obligations of states and political subdivisions
Available-for-sale securities
Estimated Fair Value	$ 22,626	$ 3,232
Unrealized Losses	(3,346)	(190)
Estimated Fair Value	2,357	0
Unrealized Losses	(1,062)	0
Estimated Fair Value	24,983	3,232
Unrealized Losses	$ (4,408)	$ (190)
Number of Securities | security	18	2
Held-to-maturity:
Estimated Fair Value	$ 20,869
Unrealized Losses	(4,134)
Estimated Fair Value	0
Unrealized Losses	0
Estimated Fair Value	20,869
Unrealized Losses	$ (4,134)
Number of Securities | security	8
Mortgage backed - residential
Available-for-sale securities
Estimated Fair Value	$ 68,299	$ 51,616
Unrealized Losses	(5,512)	(530)
Estimated Fair Value	49,723	25,246
Unrealized Losses	(10,199)	(1,108)
Estimated Fair Value	118,022	76,862
Unrealized Losses	$ (15,711)	$ (1,638)
Number of Securities | security	86	17
Held-to-maturity:
Estimated Fair Value	$ 8,217
Unrealized Losses	(654)
Estimated Fair Value	0
Unrealized Losses	0
Estimated Fair Value	8,217
Unrealized Losses	$ (654)
Number of Securities | security	10
Collateralized mortgage obligations
Available-for-sale securities
Estimated Fair Value	$ 148,461	$ 115,877
Unrealized Losses	(6,846)	(1,938)
Estimated Fair Value	65,569	193
Unrealized Losses	(12,094)	(1)
Estimated Fair Value	214,030	116,070
Unrealized Losses	$ (18,940)	$ (1,939)
Number of Securities | security	67	16
Held-to-maturity:
Estimated Fair Value	$ 4,786
Unrealized Losses	(269)
Estimated Fair Value	0
Unrealized Losses	0
Estimated Fair Value	4,786
Unrealized Losses	$ (269)
Number of Securities | security	5
Mortgage backed - commercial
Available-for-sale securities
Estimated Fair Value	$ 88,997	$ 32,872
Unrealized Losses	(10,162)	(581)
Estimated Fair Value	29,595	24,170
Unrealized Losses	(3,604)	(18)
Estimated Fair Value	118,592	57,042
Unrealized Losses	$ (13,766)	$ (599)
Number of Securities | security	22	5
Other debt
Available-for-sale securities
Estimated Fair Value	$ 14,759
Unrealized Losses	(2,010)
Estimated Fair Value	0
Unrealized Losses	0
Estimated Fair Value	14,759
Unrealized Losses	$ (2,010)
Number of Securities | security	9