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Restricted Cash (Narrative) (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Restricted Cash And Cash Equivalents Items [Line Items]      
Restricted cash $ 179 $ 1,375 $ 1,050
Reserve required by local Goverment 480,200 408,500  
Scotiabank Of Puerto Rico [Member]      
Restricted Cash And Cash Equivalents Items [Line Items]      
Certificates of deposits held, acquired   325  
Obligations Under Agreement of Loans Sold with Recourse [Member]      
Restricted Cash And Cash Equivalents Items [Line Items]      
Restricted cash $ 179 $ 1,050