Servicer and Protective Advances, Net - Schedule of Servicer and Protectective Advances, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Servicer advances	$ 87,818	$ 44,031
Protective advances (1)	1,254,343	1,707,372
Total servicer and protective advances	1,342,161	1,751,403
Less: Allowance for uncollectible advances	(146,781)	(120,338)	$ (112,427)	$ (62,542)
Servicer and protective advances, net	$ 1,195,380	1,631,065
Restatement Adjustment [Member] | Servicer And Protective Advances, Net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Error Correction, Increase In Assets		$ 35,200