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Regulations and Supervision (Details) $ in Thousands | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
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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

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