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Regulatory Matters (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
CET1 capital (to risk weighted assets) minimum required for capital adequacy purposes | 7.00% | 7.00%
CET1 capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations | 6.50% | 6.50%
Total capital (to risk weighted assets) minimum required for capital adequacy purposes | 0.10500 | 0.10500
Total capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations | 0.100 | 0.100
Tier 1 capital (to risk weighted assets) minimum required for capital adequacy purposes | 0.08500 | 0.08500
Tier 1 capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations | 0.080 | 0.080
Tier 1 capital (to average assets) minimum required for capital adequacy purposes | 0.04000 | 0.04000
Tier 1 capital (to average assets) to be well capitalized under prompt corrective action regulations | 0.050 | 0.050
Bank |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
CET1 capital (to risk weighted assets) actual amount | $ 1,261,518 | $ 1,244,028
CET1 capital (to risk weighted assets) actual ratio | 15.01% | 14.90%
Total capital (to risk weighted assets) actual amount | $ 1,329,306 | $ 1,338,356
Total capital (to risk weighted assets) actual ratio | 0.1582 | 0.1603
Tier 1 capital (to risk weighted assets) actual amount | $ 1,261,518 | $ 1,244,028
Tier 1 capital (to risk weighted assets) actual ratio | 0.1501 | 0.1490
Tier 1 capital (to average assets) actual amount | $ 1,261,518 | $ 1,244,028
Tier 1 capital (to average assets) actual ratio | 0.1016 | 0.1129
Parent Company |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
CET1 capital (to risk weighted assets) actual amount | $ 1,269,329 | $ 1,137,896
CET1 capital (to risk weighted assets) actual ratio | 15.02% | 13.49%
Total capital (to risk weighted assets) actual amount | $ 1,365,117 | $ 1,438,224
Total capital (to risk weighted assets) actual ratio | 0.1615 | 0.1704
Tier 1 capital (to risk weighted assets) actual amount | $ 1,269,329 | $ 1,137,896
Tier 1 capital (to risk weighted assets) actual ratio | 0.1502 | 0.1349
Tier 1 capital (to average assets) actual amount | $ 1,269,329 | $ 1,137,896
Tier 1 capital (to average assets) actual ratio | 0.1019 | 0.1031

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- Definition The minimum CET1 risk based capital ratio (CET1 capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References No definition available. + Details
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- Definition The CET1 risk based capital ratio (CET1 capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action. + References No definition available. + Details
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- Definition Amount of total capital as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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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