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Loans and Allowance for Credit Losses (Troubled Debt Restructurings With Subsequent Default) (Details) - contract | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Loans and Allowance for Credit Losses [Abstract] |  |
Number of contracts | 0 | 0

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- Definition Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
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Period Type: | duration

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- References No definition available. + Details
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Balance Type: | na
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