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Regulatory Capital - Summary of Regulatory Capital Requirement (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total capital (to risk-weighted assets), Actual, Amount | $ 551,215 | $ 548,364
Total capital (to risk-weighted assets), Actual, Ratio | 13.69% | 13.95%
Total capital (to risk-weighted assets), For capital adequacy purposes, Amount | $ 322,112 | $ 314,395
Total capital (to risk-weighted assets), For capital adequacy purposes, Ratio | 8.00% | 8.00%
Total capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 422,773 | $ 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 | $ 514,493 | $ 530,643
Tier 1 capital (to average assets), Actual, Ratio | 12.78% | 13.50%
Tier 1 capital (to average assets), For capital adequacy purposes, Amount | $ 241,546 | $ 235,796
Tier 1 capital (to average assets), For capital adequacy purpose, Ratio | 6.00% | 6.00%
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 342,190 | $ 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 | $ 457,000 | $ 473,150
Common equity tier 1 capital, Actual Ratio | 11.35% | 12.04%
Common equity tier 1 capital,For capital adequacy purposes, Amount | $ 181,189 | $ 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 | $ 281,850 | $ 275,094
Common equity tier 1 capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 7.00% | 7.00%
Tier 1 capital (to average assets), Actual, Amount | $ 514,493 | $ 530,643
Tier 1 capital (to average assets), Actual, Ratio | 10.14% | 10.50%
Tier 1 capital (to average assets), For capital adequacy purposes, Amount | $ 202,956 | $ 202,111
Tier 1 capital (to average assets), For capital adequacy purpose, Ratio | 4.00% | 4.00%
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 202,956 | $ 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 | $ 513,248 | $ 497,227
Total capital (to risk-weighted assets), Actual, Ratio | 12.73% | 12.65%
Total capital (to risk-weighted assets), For capital adequacy purposes, Amount | $ 322,544 | $ 314,452
Total capital (to risk-weighted assets), For capital adequacy purposes, Ratio | 8.00% | 8.00%
Total capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 423,339 | $ 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 | $ 403,180 | $ 393,065
Total capital (to risk-weighted assets), For well capitalized purpose, Ratio | 10.00% | 10.00%
Tier 1 capital (to average assets), Actual, Amount | $ 476,526 | $ 479,506
Tier 1 capital (to average assets), Actual, Ratio | 11.82% | 12.20%
Tier 1 capital (to average assets), For capital adequacy purposes, Amount | $ 241,891 | $ 235,823
Tier 1 capital (to average assets), For capital adequacy purpose, Ratio | 6.00% | 6.00%
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 342,679 | $ 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 | $ 322,522 | $ 314,430
Tier 1 capital (to average assets), For well capitalized purposes, Ratio | 8.00% | 8.00%
Common equity tier 1 capital, Actual Amount | $ 476,526 | $ 479,506
Common equity tier 1 capital, Actual Ratio | 11.82% | 12.20%
Common equity tier 1 capital,For capital adequacy purposes, Amount | $ 181,419 | $ 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 | $ 282,207 | $ 275,126
Common equity tier 1 capital (to risk-weighted assets), Required for capital1 adequacy purposes with capital buffer, Ratio | 7.00% | 7.00%
Common equity tier 1 capital, For well capitalized purpose, Amount | $ 262,049 | $ 255,475
Common equity tier 1 capital, For well capitalized purposes, Ratio | 6.50% | 6.50%
Tier 1 capital (to average assets), Actual, Amount | $ 476,526 | $ 479,506
Tier 1 capital (to average assets), Actual, Ratio | 9.43% | 9.49%
Tier 1 capital (to average assets), For capital adequacy purposes, Amount | $ 202,132 | $ 202,110
Tier 1 capital (to average assets), For capital adequacy purpose, Ratio | 4.00% | 4.00%
Tier 1 capital (to average assets), Required for capital1 adequacy purposes with capital buffer, Amount | $ 202,132 | $ 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 | $ 252,665 | $ 252,638
Tier 1 capital (to average assets), For well capitalized purposes, Ratio | 5.00% | 5.00%

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- Definition The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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- Definition The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826 + Details
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- Definition The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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