Emergence from WIMC Reorganization Proceedings - Reorganization Adjustments (Details) $ / shares in Units, $ in Thousands	Feb. 09, 2018 USD ($) $ / shares
Fresh-Start Adjustment [Line Items]
Equity balance of Successor	$ 184,388
Resulting intangible assets	$ 44,000
Successor [Member] | Common Stock
Fresh-Start Adjustment [Line Items]
Estimated fair value on the effective date | $ / shares	$ 10.25
Mandatorily Convertible Preferred Stock [Member]
Fresh-Start Adjustment [Line Items]
Estimated fair value on the effective date | $ / shares	1,231.70
Series A Warrants [Member]
Fresh-Start Adjustment [Line Items]
Estimated fair value on the effective date | $ / shares	1.68
Series B Warrants [Member]
Fresh-Start Adjustment [Line Items]
Estimated fair value on the effective date | $ / shares	$ 0.94
Reclassification Of Residual Trusts [Member]
Fresh-Start Adjustment [Line Items]
Reduction to residential loans at amortized cost	$ 317,200
Residential loans at fair value	317,200
Revaluation Of Residual Trusts [Member]
Fresh-Start Adjustment [Line Items]
Residential loans at fair value	(13,100)
Revaluation Of Holdback Receivables [Member]
Fresh-Start Adjustment [Line Items]
Decrease to receivables	1,700
Revaluation Of Real Estate Owned [Member]
Fresh-Start Adjustment [Line Items]
Increase (decrease) to other assets	5,600
Revaluation Of Deferred Debt Issuance Costs [Member]
Fresh-Start Adjustment [Line Items]
Increase (decrease) to other assets	(2,300)
Institutional and Customer Relationships [Member]
Fresh-Start Adjustment [Line Items]
Resulting intangible assets	24,000
Trade Names [Member]
Fresh-Start Adjustment [Line Items]
Resulting intangible assets	20,000
Second Lien Notes [Member] | Revaluation of Debt [Member]
Fresh-Start Adjustment [Line Items]
Corporate debt	$ (60,500)