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Servicing Assets (Narratives) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Servicing Assets At Fair Value [Line Items]          
Servicing Asset at Fair Value, Amount $ 50,779 $ 47,295 $ 50,779 $ 10,716 $ 9,821
Contractually Specified Servicing Fees Amount   2,485 1,367 1,844  
Scotiabank PR & USVI Acquisition [Member]          
Servicing Assets At Fair Value [Line Items]          
Servicing Asset At Fair Value Period Increase Decrease $ 40,500        
Conventional Loan [Member]          
Servicing Assets At Fair Value [Line Items]          
Contractually Specified Servicing Fees Amount   $ 17,200 $ 4,200 $ 4,100