Quarterly report pursuant to Section 13 or 15(d)

LOAN SALES AND SECURITIZATIONS LOAN SALES AND SECURTIZIATIONS - Residential Mortgage Portfolio, MSRs Fair Value Method Key Assumptions (Details)

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LOAN SALES AND SECURITIZATIONS LOAN SALES AND SECURTIZIATIONS - Residential Mortgage Portfolio, MSRs Fair Value Method Key Assumptions (Details) - Fair value method - Residential Mortgage - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Servicing Assets at Fair Value [Line Items]      
Constant prepayment rate (annualized), actual 11.90% 10.90%  
Constant prepayment rate (annualized), 10% adverse change $ (522)   $ (501)
Constant prepayment rate (annualized), 20% adverse change $ (1,007)   (970)
Spread over forward interest rate swap rates, actual 8.39% 5.36%  
Spread over forward interest rate swap rates, 10% adverse change $ (411)   (454)
Spread over forward interest rate swap rates, 20% adverse change $ (798)   $ (879)