Quarterly report pursuant to Section 13 or 15(d)

LOAN SALES AND SECURITIZATIONS - Small Business Association Portfolio, MSRs Amortization Method Key Assumptions (Details)

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LOAN SALES AND SECURITIZATIONS - Small Business Association Portfolio, MSRs Amortization Method Key Assumptions (Details) - Small Business Association (SBA) Loan - Amortization method - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Servicing Asset at Amortized Cost [Line Items]      
Constant prepayment rate (annualized), actual 7.50% 7.40%  
Constant prepayment rate (annualized), 10% adverse change $ (363)   $ (324)
Constant prepayment rate (annualized), 20% adverse change $ (721)   (644)
Spread over forward interest rate swap rates, actual 15.00% 15.00%  
Spread over forward interest rate swap rates, 10% adverse change $ (721)   (1,270)
Spread over forward interest rate swap rates, 20% adverse change $ (1,411)   $ (1,870)