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
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Disclosures Pertaining to Servicing Assets and Servicing Liabilities [Abstract]      
Servicing fee income $ 66,449 $ 38,500  
Ancillary and other fee income 322 140  
Float income 4,419 1,133  
Servicing income 71,190 $ 39,773  
Servicing advances $ 28,179   $ 31,050