Going Concern - Additional Information (Details) - USD ($)			6 Months Ended
	Aug. 04, 2017	Jul. 31, 2017	Jun. 30, 2017
Subsequent Event [Line Items]
Percentage Of Convertible Notes Required For Offer to Repay If Company Delisted			100.00%
Percentage Of Trustee Or Holders Of Convertible Notes Necessary to Accelerate Indebtedness Threshold			25.00%
Subsequent Event
Subsequent Event [Line Items]
Percentage Of Lenders Holding Loans Or Commitments Under Credit Agreement Threshold		50.00%
Percentage Of Aggregate Principal Amount Of Senior Notes For Restructuring Support Agreement Threshold		66.67%
Percentage Of Gross Proceeds From Disposition Of Bulk Mortgage Servicing Rights Required As Prepayment On Term Loans		80.00%
Forecast
Subsequent Event [Line Items]
Aggregate Principal Amount Of Term loans Of Lenders Party To Restructuring Support Agreement Obligated To Repurchase At Par		$ 100,000,000
Period Following Earlier Of Effective Date And Date Stipulated In Credit Agreement Measurement Date		120 days
Aggregate Principal Amount of Term Loans Prepaid From Bulk Mortgage Servicing Rights Dispositions Threshold For Mandatory Prepayment		$ 100,000,000
Prepayment Of Term Loans Required, Less Proceeds From Bulk Mortgage Servicing Rights Acquisitions Dispositions Previously Applied, On Effective Date Of Credit Agreement		$ 100,000,000
Warehouse Agreement Borrowings | One Credit Facility Used to Repurchase HECMs | Subsequent Event
Subsequent Event [Line Items]
Increase in aggregate capacity	$ 100,000,000
Expiration date	May 31, 2018