Regulatory Capital Requirements (Details) $ in Thousands	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Amount
Common Tier 1 Capital, amount	$ 496,709	$ 458,258
Tier 1 Capital, amount	526,794	488,105
Total Capital, amount	627,055	591,228
Risk-Weighted Assets, amount	$ 4,867,237	$ 4,852,564
Ratios
Common Equity Tier 1 Capital to Risk-Weighted Assets ("RWA"), ratio	0.1021	0.0944
Tier 1 Capital to RWA, ratio	0.1082	0.1006
Total Capital to RWA, ratio	0.1288	0.1218
Tier 1 Capital to Average Assets (Leverage), ratio	0.0886	0.0802
Regulatory Minimum Ratio + Capital Conservation Buffer, Amount
Common Equity Tier 1 Capital	$ 340,707
Tier 1 Capital	413,715
Total Capital	511,060
Risk-Weighted Assets	$ 237,716
Regulatory Minimum Ratio + Capital Conservation Buffer, Ratios
Common Equity Tier 1 Capital to Risk-Weighted Assets ("RWA"), ratio	0.0700
Tier 1 Capital to RWA, ratio	0.0850
Total Capital to RWA, ratio	0.1050
Tier 1 Capital to Average Assets (Leverage), ratio	0.0400
To Be Well-Capitalized Under Prompt Corrective Action Regulation, Ratios
Capitalized threshold	5.00%
Excess of Tier 1 Capital to RWA over the minimum buffer ratio (as a percent)	0.0482
The Bank
Amount
Common Tier 1 Capital, amount	$ 559,212	$ 521,453
Tier 1 Capital, amount	559,212	521,453
Total Capital, amount	620,034	580,706
Risk-Weighted Assets, amount	$ 4,864,871	$ 4,851,903
Ratios
Common Equity Tier 1 Capital to Risk-Weighted Assets ("RWA"), ratio	0.1149	0.1075
Tier 1 Capital to RWA, ratio	0.1149	0.1075
Total Capital to RWA, ratio	0.1275	0.1197
Tier 1 Capital to Average Assets (Leverage), ratio	0.0941	0.0858
Regulatory Minimum Ratio + Capital Conservation Buffer, Amount
Common Equity Tier 1 Capital	$ 340,541
Tier 1 Capital	413,514
Total Capital	510,811
Risk-Weighted Assets	$ 237,596
Regulatory Minimum Ratio + Capital Conservation Buffer, Ratios
Common Equity Tier 1 Capital to Risk-Weighted Assets ("RWA"), ratio	0.0700
Tier 1 Capital to RWA, ratio	0.0850
Total Capital to RWA, ratio	0.1050
Tier 1 Capital to Average Assets (Leverage), ratio	0.0400
To Be Well-Capitalized Under Prompt Corrective Action Regulation, Amount
Common Equity Tier 1 Capital	$ 316,217
Tier 1 Capital	389,190
Total Capital	486,487
Risk-Weighted Assets	$ 296,995
To Be Well-Capitalized Under Prompt Corrective Action Regulation, Ratios
Common Equity Tier 1 Capital to RWA, ratio	0.0650
Tier 1 Capital to RWA, ratio	0.0800
Total Capital to RWA, ratio	0.1000
Tier 1 Capital to Average Assets (Leverage), ratio	0.0500
Excess of Total Capital to RWA over the minimum buffer ratio (as a percent)	0.0475

Banking Regulation, Capital Adequacy, Minimum

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

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