Fair Value of Assets and Liabilities - Quantitative Information about Level 3 Fair Value Measurements (Details) - Non-Recurring Measurements $ in Thousands	Sep. 30, 2024 USD ($) Input	Dec. 31, 2023 USD ($)
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned	$ 120	$ 166
Collateral-dependent impaired loans, net of ACL	2,854	1,332
Level 3
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned	120	166
Collateral-dependent impaired loans, net of ACL	2,854	1,332
Level 3 | Sales comparison approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned	120	166
Collateral-dependent impaired loans, net of ACL	1,103	74
Level 3 | Cost approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL	1,490	$ 1,258
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 | Sales comparison approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned, measurement input	0.100	0.000
Collateral-dependent impaired loans, net of ACL, measurement input	0.100	0.100
Level 3 | Minimum | Sales comparison approach | Adjustments to comparables
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input	0.000
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 | 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 | Sales comparison approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned, measurement input	0.100	0.100
Collateral-dependent impaired loans, net of ACL, measurement input	0.200	0.100
Level 3 | Maximum | Sales comparison approach | Adjustments to comparables
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input	0.000
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 | 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 | Sales comparison approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Other real estate owned, measurement input	0.100	0.081
Collateral-dependent impaired loans, net of ACL, measurement input	0.108	0.100
Level 3 | Weighted Average Range | Sales comparison approach | Adjustments to comparables
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input	0.000
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 | Combined approach | Selling costs
Quantitative Information About Level 3 Fair Value Measurements
Collateral-dependent impaired loans, net of ACL, measurement input | Input	0.100