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 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Disclosures Pertaining to Servicing Assets and Servicing Liabilities [Abstract]          
Servicing fee income $ 53,989 $ 37,226 $ 141,923 $ 104,765  
Ancillary and other fee income 310 449 615 1,423  
Float income 3,088 1,033 5,930 2,469  
Servicing income 57,387 $ 38,708 148,468 $ 108,657  
Servicing advances $ 20,658   $ 20,658   $ 26,147