Fair Value of Assets and Liabilities - Quantitative Information about Level 3 Fair Value Measurements (Details) - Non-Recurring Measurements $ in Thousands	Mar. 31, 2024 USD ($) Input	Dec. 31, 2023 USD ($)
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned		$ 166
Collateral-dependent impaired loans, net of ACL	$ 1,542	1,332
Level 3
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned		166
Collateral-dependent impaired loans, net of ACL	1,542	1,332
Level 3 | Cost approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL	1,248	1,258
Level 3 | Sales comparison approach
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned		166
Level 3 | Sales comparison approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL	33	$ 74
Level 3 | Combined approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL	$ 261
Level 3 | Minimum | Cost approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input	0.100	0.100
Level 3 | Minimum | Sales comparison approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned, measurement input		0.000
Collateral-dependent impaired loans, net of ACL, measurement input	0.100	0.100
Level 3 | Minimum | Combined approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input | Input	0.100
Level 3 | Maximum | Cost approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input	0.100	0.100
Level 3 | Maximum | Sales comparison approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned, measurement input		0.100
Collateral-dependent impaired loans, net of ACL, measurement input	0.200	0.100
Level 3 | Maximum | Combined approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input | Input	0.100
Level 3 | Weighted Average Range | Cost approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input	0.100	0.100
Level 3 | Weighted Average Range | Sales comparison approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned, measurement input		0.081
Collateral-dependent impaired loans, net of ACL, measurement input	0.184	0.100
Level 3 | Weighted Average Range | Combined approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input | Input	0.100