Servicer and Protective Advance, Net - Schedule of Activity in Allowance For Uncollectible Advances (Details) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 09, 2018	Dec. 31, 2018	Dec. 31, 2017
Allowance For Uncollectible Servicer And Protective Advances [Roll Forward]
Balance at beginning of the period	$ 164,225	$ 0	$ 146,781
Fresh start accounting adjustments	(166,174)
Provision for uncollectible advances	2,674	39,819	51,612
Charge-offs, net of recoveries	(725)	1,869	(34,168)
Balance at end of the period	$ 0	$ 41,688	$ 164,225