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Regulatory Matters (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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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 | $ 1,341,347 | $ 1,261,518
CET1 capital (to risk weighted assets) actual ratio | 14.23% | 14.62%
Total capital (to risk weighted assets) actual amount | $ 1,412,904 | $ 1,329,306
Total capital (to risk weighted assets) actual ratio | 0.1499 | 0.1541
Tier 1 capital (to risk weighted assets) actual amount | $ 1,341,347 | $ 1,261,518
Tier 1 capital (to risk weighted assets) actual ratio | 0.1423 | 0.1462
Tier 1 capital (to average assets) actual amount | $ 1,341,347 | $ 1,261,518
Tier 1 capital (to average assets) actual ratio | 0.1178 | 0.1016
Parent Company |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
CET1 capital (to risk weighted assets) actual amount | $ 1,329,971 | $ 1,269,329
CET1 capital (to risk weighted assets) actual ratio | 14.03% | 14.63%
Total capital (to risk weighted assets) actual amount | $ 1,415,854 | $ 1,365,117
Total capital (to risk weighted assets) actual ratio | 0.1494 | 0.1574
Tier 1 capital (to risk weighted assets) actual amount | $ 1,329,971 | $ 1,269,329
Tier 1 capital (to risk weighted assets) actual ratio | 0.1403 | 0.1463
Tier 1 capital (to average assets) actual amount | $ 1,329,971 | $ 1,269,329
Tier 1 capital (to average assets) actual ratio | 0.1163 | 0.1019

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- Definition Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy with Buffer, Minimum + 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 https://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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