Servicer and Protective Advance, Net - Schedule of Activity in Allowance For Uncollectible Advances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance For Uncollectible Servicer And Protective Advances [Roll Forward]
Balance at beginning of the year	$ 120,338	$ 112,427	$ 62,542
Provision for uncollectible advances	64,729	52,679	75,704
Charge-offs, net of recoveries and other	(38,286)	(44,768)	(25,819)
Balance at end of the year	$ 146,781	$ 120,338	$ 112,427