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Loans (Aging of the Amortized Cost of Collateral-Dependent Loans Held For Investment) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Commercial loans | Commercial secured by real estate | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Amortized cost of collateral-dependent loans held for investment $ 10,233 $ 29,279