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Troubled Debt Restructurings Schedule Of Troubled Debt Restructurings On Financing Receivables (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
contract
Mar. 31, 2019
USD ($)
contract
Dec. 31, 2019
contract
Troubled Debt Restructuring, Subsequent Periods [Line Items]      
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts   1  
Financing Receivable, Modifications, Number of Contracts 17   18
Troubled Debt Restructurings Within Previous Twelve Months [Member]      
Troubled Debt Restructuring, Subsequent Periods [Line Items]      
Troubled Debt Restructuring Modifications Recorded Investment | $   $ 79  
Troubled Debt Restructurings Within Previous Twelve Months [Member] | Residential Single Family      
Troubled Debt Restructuring, Subsequent Periods [Line Items]      
Financing Receivable, Modifications, Number of Contracts   1  
Troubled Debt Restructuring Modifications Recorded Investment | $   $ 79