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Other Events (Details)
 12 Months Ended
Feb. 01, 2021
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Other Events [Abstract]      
Increase in Loans and Leases Receivable, Allowance   $ 9,000,000.0  
Percent Increase in Loans and Leases Receivable, Allowance   46.10%  
Number of Short-Term Loan Modifications   38  
Gross Loans and Leases Outstanding, Short-Term Modification   $ 27,000,000.0 $ 131,500,000
Gross Loans and Leases Outstanding, Short-Term Modification, Percent 6 Month Deferral Period   1.40% 7.10%
Financing Receivable, Allowance for Credit Loss, Increase due to Loan Growth   $ 2,300,000  
Financing Receivable, Allowance for Credit Losses, Increase due to Historic Loss Rate Updates   949,000  
Subsequent Event [Line Items]      
Financing Receivable, Allowance for Credit Losses, Increase due to Economic Conditions   $ 5,500,000  
Subsequent Event      
Subsequent Event [Line Items]      
Paycheck Protection Program Loan Applications Processed, Second Draw $ 300    
Paycheck Protection Program Loans Issued, Second Draw, Gross Amount $ 85,000,000