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Regulatory Capital Requirements (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Jan. 01, 2019
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 common equity, (to risk-weighted assets), Actual Amount | $ 350,350 | $ 400,100 |
Tier 1 common equity, (to risk-weighted assets), Actual Ratio (as a percent) | 8.97% | 9.30% |
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 7.00%
Tier 1 capital (to risk-weighted assets), Actual Amount | $ 350,350 | $ 400,100 |
Tier 1 capital (to risk-weighted assets), Actual Ratio (as a percent) | 0.0897 | 0.0930 |
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.085
Capital | $ 488,170 | $ 542,808 |
Capital to Risk Weighted Assets | 0.1250 | 0.1262 |
Capital Required for Capital Adequacy to Risk Weighted Assets |  |  | 0.105
Tier 1 capital (to average assets), Actual Amount | $ 350,350 | $ 400,100 |
Tier 1 capital (to average assets), Actual Ratio (as a percent) | 0.0624 | 0.0690 |
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.040
2016 Period |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount |  |  | $ 273,335
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 7.00%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount |  |  | $ 331,907
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.0850
Capital Required for Capital Adequacy |  |  | $ 410,003
Capital Required for Capital Adequacy to Risk Weighted Assets |  |  | 0.1050
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount |  |  | $ 224,566
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.0400
2015 Period |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount |  |  | $ 301,052
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 7.00%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount |  |  | $ 365,563
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.0850
Capital Required for Capital Adequacy |  |  | $ 451,578
Capital Required for Capital Adequacy to Risk Weighted Assets |  |  | 0.1050
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount |  |  | $ 232,011
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.0400
Bank |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 common equity, (to risk-weighted assets), Actual Amount | $ 420,963 | $ 475,793 |
Tier 1 common equity, (to risk-weighted assets), Actual Ratio (as a percent) | 10.83% | 11.11% |
Tier One Common Equity Required to be Well Capitalized | $ 252,613 | $ 278,362 |
Tier One Common Equity Required to be Well Capitalized to Risk Weighted Assets | 6.50% | 6.50% |
Tier 1 capital (to risk-weighted assets), Actual Amount | $ 420,963 | $ 475,793 |
Tier 1 capital (to risk-weighted assets), Actual Ratio (as a percent) | 0.1083 | 0.1111 |
Tier 1 capital (to risk-weighted assets), Minimum to be Well Capitalized Under Prompt Corrective Actions, Amount | $ 310,908 | $ 342,599 |
Tier 1 capital (to risk-weighted assets), Minimum to be Well Capitalized Under Prompt Corrective Actions, Ratio (as a percent) | 0.0800 | 0.0800 |
Capital | $ 469,649 | $ 520,610 |
Capital to Risk Weighted Assets | 0.1208 | 0.1216 |
Capital Required to be Well Capitalized | $ 388,635 | $ 428,249 |
Capital Required to be Well Capitalized to Risk Weighted Assets | 0.1000 | 0.1000 |
Tier 1 capital (to average assets), Actual Amount | $ 420,963 | $ 475,793 |
Tier 1 capital (to average assets), Actual Ratio (as a percent) | 0.0753 | 0.0823 |
Tier 1 capital (to average assets), Minimum to be Well Capitalized Under Prompt Corrective Actions, Amount | $ 279,646 | $ 289,164 |
Tier 1 capital (to average assets), Minimum to be Well Capitalized Under Prompt Corrective Actions, Ratio (as a percent) | 0.0500 | 0.0500 |
Bank | 2016 Period |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount |  |  | $ 272,045
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 7.00%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount |  |  | $ 330,340
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.0850
Capital Required for Capital Adequacy |  |  | $ 408,067
Capital Required for Capital Adequacy to Risk Weighted Assets |  |  | 0.1050
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount |  |  | $ 223,717
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.0400
Bank | 2015 Period |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount |  |  | $ 299,774
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 7.00%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount |  |  | $ 364,012
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.0850
Capital Required for Capital Adequacy |  |  | $ 449,662
Capital Required for Capital Adequacy to Risk Weighted Assets |  |  | 0.1050
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount |  |  | $ 231,331
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent) |  |  | 0.0400

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