Other Comprehensive Income (Loss) - Tax Effects Allocated to Each Component of Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Before-Tax Amount
Net unrealized holding losses arising during the period on investment securities AFS	$ (13,686)	$ (15,872)	$ (12,208)	$ (49,824)
Reclassification adjustment for net gains on investment securities AFS realized in net income			0	(31)
Total other comprehensive loss	(13,686)	(15,872)	(12,208)	(49,855)
Tax Benefit
Net unrealized holding losses arising during the period on investment securities AFS	2,874	3,333	2,564	10,463
Reclassification adjustment for net gains on investment securities AFS realized in net income			0	6
Total other comprehensive loss	2,874	3,333	2,564	10,469
Net-of-Tax Amount
Net unrealized holding losses arising during the period on investment securities AFS	(10,812)	(12,539)	(9,644)	(39,361)
Reclassification adjustment for net gains on investment securities AFS realized in net income	0	0	0	(25)
Total other comprehensive loss	$ (10,812)	$ (12,539)	$ (9,644)	$ (39,386)

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