Investment Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value
Less than 12 months	$ 19,925	$ 129,820
12 months or more	227,541	119,799
Total Fair Value	247,466	249,619
Unrealized Losses
Less than 12 months	(592)	(19,994)
12 months or more	(44,081)	(26,415)
Total Unrealized Losses	(44,673)	(46,409)
U.S. Treasury
Fair Value
Less than 12 months	2,725	1,908
12 months or more	1,394	244
Total Fair Value	4,119	2,152
Unrealized Losses
Less than 12 months	(15)	(41)
12 months or more	(33)	(5)
Total Unrealized Losses	(48)	(46)
U.S. government and federal agency obligations
Fair Value
Less than 12 months	0	559
12 months or more	483	0
Total Fair Value	483	559
Unrealized Losses
Less than 12 months	0	(32)
12 months or more	(32)	0
Total Unrealized Losses	(32)	(32)
U.S. government-sponsored enterprises
Fair Value
Less than 12 months	988	7,066
12 months or more	24,084	16,711
Total Fair Value	25,072	23,777
Unrealized Losses
Less than 12 months	(12)	(933)
12 months or more	(2,415)	(1,789)
Total Unrealized Losses	(2,427)	(2,722)
Obligations of states and political subdivisions
Fair Value
Less than 12 months	3,200	79,396
12 months or more	105,814	29,370
Total Fair Value	109,014	108,766
Unrealized Losses
Less than 12 months	(45)	(15,421)
12 months or more	(23,966)	(10,133)
Total Unrealized Losses	(24,011)	(25,554)
Mortgage-backed securities
Fair Value
Less than 12 months	6,418	33,334
12 months or more	90,803	68,911
Total Fair Value	97,221	102,245
Unrealized Losses
Less than 12 months	(114)	(3,124)
12 months or more	(16,287)	(13,740)
Total Unrealized Losses	(16,401)	(16,864)
Other debt securities
Fair Value
Less than 12 months	6,594	7,557
12 months or more	3,838	3,386
Total Fair Value	10,432	10,943
Unrealized Losses
Less than 12 months	(406)	(443)
12 months or more	(987)	(439)
Total Unrealized Losses	(1,393)	(882)
Bank issued trust preferred securities
Fair Value
Less than 12 months	0	0
12 months or more	1,125	1,177
Total Fair Value	1,125	1,177
Unrealized Losses
Less than 12 months	0	0
12 months or more	(361)	(309)
Total Unrealized Losses	$ (361)	$ (309)