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Schedule of Mortgage Servicing Income and Mortgage Servicing Expenses (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Investments Debt And Equity Securities [Abstract]    
Servicing fee income $ 4,445 $ 4,445
Ancillary fee income 117 117
Mortgage servicing fee income 4,562 4,562
Mortgage servicing expense (464) (464)
Change in representation and warranty obligations (290) (290)
Mortgage servicing rights income, net $ 3,808 $ 3,808