Quarterly report pursuant to Section 13 or 15(d)

Components of Servicing Revenue (Details)

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Components of Servicing Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Components of Servicing Revenue [Line Items]          
Contractually Specified Servicing Fees, Amount $ 34,431 $ 29,586 $ 67,540 $ 60,823  
Ancillary Fee Income Generated by Servicing Financial Assets, Amount 488 551 973 1,115  
Float Income Generated by Servicing Financial Assets, Amount 897 379 1,436 665  
Contractually Specified Servicing Fees, Late Fees, and Ancillary Fees Earned in Exchange for Servicing Financial Assets 35,816 $ 30,516 69,949 $ 62,603  
Servicing advances $ 56,827   $ 56,827   $ 37,499