Amount of fresh-start adjustment to goodwill.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Intangible Assets, Net - Schedule of Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 09, 2018	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Balance at beginning of the period	$ 47,747	$ 8,960	$ 47,747
Impairment	0	(8,960)	0
Balance at end of the period	8,960	0	47,747
Servicing [Member]
Goodwill [Roll Forward]
Accumulated impairment losses			470,600
Reverse Mortgage [Member]
Goodwill [Roll Forward]
Accumulated impairment losses			$ 138,800
Originations [Member]
Goodwill [Roll Forward]
Accumulated impairment losses		$ 9,000
Fresh-Start Adjustments [Member]
Goodwill [Roll Forward]
Fresh start accounting adjustment	$ (38,787)