Regulations and Supervision (Details) $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Banking Regulation, Total Capital [Abstract]
Total Capital (to risk-weighted assets), Actual Amount	$ 796,226	$ 754,792
Total Capital (to risk-weighted assets), Actual Ratio	0.131	0.134
Total Capital (to risk-weighted assets), Minimum Capital Required, Amount	$ 639,844	$ 593,213
Total Capital (to risk-weighted assets), Minimum Capital Required, Ratio	0.105	0.105
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Amount	$ 609,375	$ 564,965
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio	0.100	0.100
Common Equity Tier 1 Capital (To Risk-weighted Assets)
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount	$ 738,266	$ 699,525
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio	0.121	0.124
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum Capital Required, Amount	$ 426,563	$ 395,476
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum Capital Required, Ratio	7.00%	7.00%
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount	$ 396,094	$ 367,227
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio	6.50%	6.50%
Tier 1 Capital (To Risk-weighted Assets)
Tier 1 Capital (to risk-weighted assets), Actual Amount	$ 738,266	$ 699,525
Tier 1 Capital (to risk-weighted assets), Actual Ratio	0.121	0.124
Tier 1 Capital (to risk-weighted assets), Minimum Capital Required, Amount	$ 517,969	$ 480,220
Tier 1 Capital (to risk-weighted assets), Minimum Capital Required, Ratio	0.085	0.085
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount	$ 487,500	$ 451,972
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio	0.080	0.080
Tier 1 Leverage Capital (To Average Assets)
Tier 1 Capital (to average assets), Actual Amount	$ 738,266	$ 699,525
Tier 1 Capital (to average assets), Actual Ratio	0.093	0.091
Tier 1 Capital (to average assets), Minimum Capital Required, Amount	$ 318,498	$ 308,269
Tier 1 Capital (to average assets), Minimum Capital Required, Ratio	0.040	0.040
Tier 1 Capital (to average assets), Required to be Well Capitalized, Amount	$ 398,123	$ 385,337
Tier 1 Capital (to average assets), Required to be Well Capitalized, Ratio	0.050	0.050
Subsidiaries
Banking Regulation, Total Capital [Abstract]
Total Capital (to risk-weighted assets), Actual Amount	$ 754,991	$ 721,297
Total Capital (to risk-weighted assets), Actual Ratio	0.124	0.128
Total Capital (to risk-weighted assets), Minimum Capital Required, Amount	$ 638,719	$ 591,445
Total Capital (to risk-weighted assets), Minimum Capital Required, Ratio	0.105	0.105
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Amount	$ 608,304	$ 563,281
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio	0.100	0.100
Common Equity Tier 1 Capital (To Risk-weighted Assets)
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount	$ 697,031	$ 666,030
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio	0.115	0.118
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum Capital Required, Amount	$ 425,813	$ 394,297
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum Capital Required, Ratio	7.00%	7.00%
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount	$ 395,398	$ 366,133
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio	6.50%	6.50%
Tier 1 Capital (To Risk-weighted Assets)
Tier 1 Capital (to risk-weighted assets), Actual Amount	$ 697,031	$ 666,030
Tier 1 Capital (to risk-weighted assets), Actual Ratio	0.115	0.118
Tier 1 Capital (to risk-weighted assets), Minimum Capital Required, Amount	$ 517,058	$ 478,789
Tier 1 Capital (to risk-weighted assets), Minimum Capital Required, Ratio	0.085	0.085
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount	$ 486,643	$ 450,625
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio	0.080	0.080
Tier 1 Leverage Capital (To Average Assets)
Tier 1 Capital (to average assets), Actual Amount	$ 697,031	$ 666,030
Tier 1 Capital (to average assets), Actual Ratio	0.088	0.087
Tier 1 Capital (to average assets), Minimum Capital Required, Amount	$ 317,914	$ 307,956
Tier 1 Capital (to average assets), Minimum Capital Required, Ratio	0.040	0.040
Tier 1 Capital (to average assets), Required to be Well Capitalized, Amount	$ 397,393	$ 384,945
Tier 1 Capital (to average assets), Required to be Well Capitalized, Ratio	0.050	0.050