Fair Value of Assets and Liabilities - Fair Value Measurements on a Non-Recurring Basis (Details) - Non-Recurring Measurements - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Collateral-dependent impaired loans, net of ACL	$ 1,279	$ 1,360
Total assets measured at fair value on a recurring basis	1,279	1,360
Level 1
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Collateral-dependent impaired loans, net of ACL	0	0
Total assets measured at fair value on a recurring basis	0	0
Level 2
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Collateral-dependent impaired loans, net of ACL	0	0
Total assets measured at fair value on a recurring basis	0	0
Level 3
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Collateral-dependent impaired loans, net of ACL	1,279	1,360
Total assets measured at fair value on a recurring basis	$ 1,279	$ 1,360