Investment Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value
Less than 12 months	$ 16,355	$ 129,820
12 months or more	231,529	119,799
Total Fair Value	247,884	249,619
Unrealized Losses
Less than 12 months	(654)	(19,994)
12 months or more	(40,140)	(26,415)
Total Unrealized Losses	(40,794)	(46,409)
U.S. Treasury
Fair Value
Less than 12 months	468	1,908
12 months or more	1,391	244
Total Fair Value	1,859	2,152
Unrealized Losses
Less than 12 months	(3)	(41)
12 months or more	(31)	(5)
Total Unrealized Losses	(34)	(46)
U.S. government and federal agency obligations
Fair Value
Less than 12 months	0	559
12 months or more	490	0
Total Fair Value	490	559
Unrealized Losses
Less than 12 months	0	(32)
12 months or more	(25)	0
Total Unrealized Losses	(25)	(32)
U.S. government-sponsored enterprises
Fair Value
Less than 12 months	996	7,066
12 months or more	24,221	16,711
Total Fair Value	25,217	23,777
Unrealized Losses
Less than 12 months	(4)	(933)
12 months or more	(2,278)	(1,789)
Total Unrealized Losses	(2,282)	(2,722)
Obligations of states and political subdivisions
Fair Value
Less than 12 months	3,968	79,396
12 months or more	106,281	29,370
Total Fair Value	110,249	108,766
Unrealized Losses
Less than 12 months	(180)	(15,421)
12 months or more	(21,790)	(10,133)
Total Unrealized Losses	(21,970)	(25,554)
Mortgage-backed securities
Fair Value
Less than 12 months	4,271	33,334
12 months or more	93,925	68,911
Total Fair Value	98,196	102,245
Unrealized Losses
Less than 12 months	(119)	(3,124)
12 months or more	(14,926)	(13,740)
Total Unrealized Losses	(15,045)	(16,864)
Other debt securities
Fair Value
Less than 12 months	6,652	7,557
12 months or more	4,074	3,386
Total Fair Value	10,726	10,943
Unrealized Losses
Less than 12 months	(348)	(443)
12 months or more	(751)	(439)
Total Unrealized Losses	(1,099)	(882)
Bank issued trust preferred securities
Fair Value
Less than 12 months	0	0
12 months or more	1,147	1,177
Total Fair Value	1,147	1,177
Unrealized Losses
Less than 12 months	0	0
12 months or more	(339)	(309)
Total Unrealized Losses	$ (339)	$ (309)