XML 66 R55.htm IDEA: XBRL DOCUMENT v3.21.1
Loans and Allowance for Credit Losses Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Impaired loans with principal balances approximately in percentage 97.00%   83.00%
Unpaid principal balance, with no related allowance $ 61,892   $ 68,595
Excluded from TDRs 3,600,000 $ 1,000,000  
Minimum      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Minimum balance of loans evaluated individually for impairment 1,000   $ 1,000
Impaired loans balances, real estate as collateral $ 1,000