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Nature of Operations and Summary of Significant Accounting Policies - Recent Accounting Changes (Details) - One-time cumulative-effect adjustment - Subsequent event $ in Millions | Jan. 01, 2021 USD ($)
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New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Allowance increase | 57.00%
Estimated |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Life of loan portfolio | 4 years
Reserve for potential losses from unfunded commitments | $ 21

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- Definition Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121611286&loc=d3e11927-110247 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82919202-210446 + Details
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