Regulatory Capital (Details) $ in Thousands	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets), actual, amount	$ 785,080	$ 800,209
Total capital (to risk-weighted assets), actual, ratio	0.1500	0.1391
Total capital (to risk-weighted assets), for capital adequacy purposes, amount	$ 418,661	$ 460,266
Total capital (to risk-weighted assets), For capital adequacy purposes, ratio	0.0800	0.0800
Total capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, amount	$ 549,492	$ 604,099
Total capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, ratio	10.50%	10.50%
Tier 1 capital (to risk-weighted assets), actual, amount	$ 589,789	$ 690,183
Tier 1 capital (to risk-weighted assets), actual, ratio	0.1127	0.1200
Tier 1 capital (to risk-weighted assets), for capital adequacy purposes, amount	$ 313,995	$ 345,199
Tier 1 capital (to risk-weighted assets), for capital adequacy purpose, ratio	0.0600	0.0600
Tier 1 capital (to risk-weighted assets), required for capital1 adequacy purposes with capital buffer, amount	$ 444,827	$ 489,033
Tier 1 capital (to risk-weighted assets), required for capital1 adequacy purposes with capital buffer, ratio	8.50%	8.50%
Common equity tier 1 capital (to risk-weighted assets)	$ 532,153	$ 632,760
Common equity tier 1 capital (to risk-weighted assets)	0.1017	0.1111
Common equity tier 1 capital, for capital adequacy purposes (to risk-weighted assets)	$ 235,497	$ 258,900
Common equity tier 1 capital, for capital adequacy purpose (to risk-weighted assets)	4.50%	4.50%
Common equity tier 1 capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, amount	$ 366,328	$ 402,733
Common equity tier 1 capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, ratio	7.00%	7.00%
Tier 1 capital (to total assets), actual, amount	$ 589,789	$ 690,183
Tier 1 capital (to total assets), actual, ratio	0.0822	0.0888
Tier 1 capital (to total assets), for capital adequacy purposes, amount	$ 286,859	$ 310,825
Tier 1 capital (to total assets), for capital adequacy purpose, ratio	0.0400	0.0400
Tier 1 capital (to total assets), required for capital1 adequacy purposes with capital buffer, amount	$ 286,859	$ 310,825
Tier 1 capital (to total assets), required for capital1 adequacy purposes with capital buffer, ratio	4.00%	4.00%
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets), actual, amount	$ 664,754	$ 725,383
Total capital (to risk-weighted assets), actual, ratio	0.1275	0.1264
Total capital (to risk-weighted assets), for capital adequacy purposes, amount	$ 417,237	$ 459,039
Total capital (to risk-weighted assets), For capital adequacy purposes, ratio	0.0800	0.0800
Total capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, amount	$ 547,624	$ 602,489
Total capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, ratio	10.50%	10.50%
Total capital (to risk-weighted assets), for well capitalized purpose, amount	$ 521,546	$ 573,799
Total capital (to risk-weighted assets), for well capitalized purpose, ratio	0.1000	0.1000
Tier 1 capital (to risk-weighted assets), actual, amount	$ 612,305	$ 671,095
Tier 1 capital (to risk-weighted assets), actual, ratio	0.1174	0.1170
Tier 1 capital (to risk-weighted assets), for capital adequacy purposes, amount	$ 312,928	$ 344,279
Tier 1 capital (to risk-weighted assets), for capital adequacy purpose, ratio	0.0600	0.0600
Tier 1 capital (to risk-weighted assets), required for capital1 adequacy purposes with capital buffer, amount	$ 443,314	$ 487,729
Tier 1 capital (to risk-weighted assets), required for capital1 adequacy purposes with capital buffer, ratio	8.50%	8.50%
Tier 1 capital (to risk-weighted assets), for well capitalized purpose, amount	$ 417,237	$ 459,039
Tier 1 capital (to risk-weighted assets), for well capitalized purposes, ratio	0.0800	0.0800
Common equity tier 1 capital (to risk-weighted assets)	$ 612,305	$ 671,095
Common equity tier 1 capital (to risk-weighted assets)	0.1174	0.1170
Common equity tier 1 capital, for capital adequacy purposes (to risk-weighted assets)	$ 234,696	$ 258,209
Common equity tier 1 capital, for capital adequacy purpose (to risk-weighted assets)	4.50%	4.50%
Common equity tier 1 capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, amount	$ 365,082	$ 401,659
Common equity tier 1 capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, ratio	7.00%	7.00%
Common equity tier 1 capital, (to risk-weighted assets) for well capitalized purpose, amount	$ 339,005	$ 372,969
Common equity tier 1 capital, (to risk-weighted assets) for well capitalized purposes, ratio	6.50%	6.50%
Tier 1 capital (to total assets), actual, amount	$ 612,305	$ 671,095
Tier 1 capital (to total assets), actual, ratio	0.0855	0.0864
Tier 1 capital (to total assets), for capital adequacy purposes, amount	$ 286,332	$ 310,539
Tier 1 capital (to total assets), for capital adequacy purpose, ratio	0.0400	0.0400
Tier 1 capital (to total assets), required for capital1 adequacy purposes with capital buffer, amount	$ 286,332	$ 310,539
Tier 1 capital (to total assets), required for capital1 adequacy purposes with capital buffer, ratio	4.00%	4.00%
Tier 1 capital (to total assets), for well capitalized purpose, amount	$ 357,915	$ 388,174
Tier 1 capital (to total assets), for well capitalized purposes, ratio	0.0500	0.0500