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Regulatory Capital - Summary of Regulatory Capital Requirement (Details) $ in Thousands | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total capital (to risk-weighted assets), Actual, Amount | $ 708,198 | $ 548,364
Total capital (to risk-weighted assets), Actual, Ratio | 0.1571 | 0.1395
Total capital (to risk-weighted assets), For capital adequacy purposes, Amount | $ 360,737 | $ 314,395
Total capital (to risk-weighted assets), For capital adequacy purposes, Ratio | 0.0800 | 0.0800
Total capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 473,468 | $ 412,644
Total capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 10.50% | 10.50%
Tier 1 capital (to average assets), Actual, Amount | $ 661,729 | $ 530,643
Tier 1 capital (to average assets), Actual, Ratio | 0.1468 | 0.1350
Tier 1 capital (to average assets), For capital adequacy purposes, Amount | $ 270,553 | $ 235,796
Tier 1 capital (to average assets), For capital adequacy purpose, Ratio | 0.0600 | 0.0600
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 383,284 | $ 334,044
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 8.50% | 8.50%
Common equity tier 1 capital, Actual Amount | $ 541,920 | $ 473,150
Common equity tier 1 capital, Actual Ratio | 0.1202 | 0.1204
Common equity tier 1 capital, For capital adequacy purposes, Amount | $ 202,915 | $ 176,846
Common equity tier 1 capital, For capital adequacy purpose, Ratio | 4.50% | 4.50%
Common equity tier 1 capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 315,645 | $ 275,094
Common equity tier 1 capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 7.00% | 7.50%
Tier 1 capital (to average assets), Actual, Amount | $ 661,729 | $ 530,643
Tier 1 capital (to average assets), Actual, Ratio | 0.0905 | 0.1050
Tier 1 capital (to average assets), For capital adequacy purposes, Amount | $ 292,335 | $ 202,111
Tier 1 capital (to average assets), For capital adequacy purpose, Ratio | 0.0400 | 0.0400
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 292,335 | $ 202,111
Tier 1 capital (to average 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 | $ 664,061 | $ 497,227
Total capital (to risk-weighted assets), Actual, Ratio | 0.1472 | 0.1265
Total capital (to risk-weighted assets), For capital adequacy purposes, Amount | $ 361,015 | $ 314,452
Total capital (to risk-weighted assets), For capital adequacy purposes, Ratio | 0.0800 | 0.0800
Total capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 473,832 | $ 412,718
Total capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 10.50% | 10.50%
Total capital (to risk-weighted assets), For well capitalized purpose, Amount | $ 451,269 | $ 393,065
Total capital (to risk-weighted assets), For well capitalized purpose, Ratio | 0.1000 | 0.1000
Tier 1 capital (to average assets), Actual, Amount | $ 617,592 | $ 479,506
Tier 1 capital (to average assets), Actual, Ratio | 0.1369 | 0.1220
Tier 1 capital (to average assets), For capital adequacy purposes, Amount | $ 270,761 | $ 235,823
Tier 1 capital (to average assets), For capital adequacy purpose, Ratio | 0.0600 | 0.0600
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 383,578 | $ 334,082
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 8.50% | 8.50%
Tier 1 capital (to average assets), For well capitalized purpose, Amount | $ 361,015 | $ 314,430
Tier 1 capital (to average assets), For well capitalized purposes, Ratio | 0.0800 | 0.0800
Common equity tier 1 capital, Actual Amount | $ 617,592 | $ 479,506
Common equity tier 1 capital, Actual Ratio | 0.1369 | 0.1220
Common equity tier 1 capital, For capital adequacy purposes, Amount | $ 203,071 | $ 176,867
Common equity tier 1 capital, For capital adequacy purpose, Ratio | 4.50% | 4.50%
Common equity tier 1 capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 315,888 | $ 275,126
Common equity tier 1 capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 7.00% | 7.50%
Common equity tier 1 capital, For well capitalized purpose, Amount | $ 293,325 | $ 255,475
Common equity tier 1 capital, For well capitalized purposes, Ratio | 6.50% | 6.50%
Tier 1 capital (to average assets), Actual, Amount | $ 617,592 | $ 479,506
Tier 1 capital (to average assets), Actual, Ratio | 0.0850 | 0.0949
Tier 1 capital (to average assets), For capital adequacy purposes, Amount | $ 290,646 | $ 202,110
Tier 1 capital (to average assets), For capital adequacy purpose, Ratio | 0.0400 | 0.0400
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 290,646 | $ 202,110
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 4.00% | 4.00%
Tier 1 capital (to average assets), For well capitalized purpose, Amount | $ 363,307 | $ 252,638
Tier 1 capital (to average assets), For well capitalized purposes, Ratio | 0.0500 | 0.0500

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