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Regulatory Capital Requirements - Additional Information (Details) $ in Billions | Mar. 31, 2022 USD ($) | Dec. 31, 2021
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Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Loans or advances from bank limited to percentage of the banks capital stock and surplus and must be secured by collateral | 10.00% |
Percentage of required capital conservation buffer | 2.50 |
Community bank leverage ratio | 8.71 | 8.85
Community Bank Leverage Ratio Requirement [Member] |  |
Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Financial institutions minimum amount of assets need to maintain | $ 10 |
The Economic Growth, Regulatory Relief and Consumer Protection Act of 2018 [Member] |  |
Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Financial institutions minimum amount of assets need to maintain | $ 10 |
Community bank leverage ratio | 9 |

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- Definition Loans or advances from bank limited to percentage of the banks capital stock and surplus and must be secured by collateral. + References No definition available. + Details
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- Definition Regulatory capital requirements under banking regulations. + References No definition available. + Details
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- Definition Capital conservation buffer percentage calculated as total risk-based capital ratio after deduction of minimum total risk-based capital ratio 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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- Definition Ratio of Tier 1 capital to average assets 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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