Commitments and Contingencies - Additional Information (Detail)	9 Months Ended	12 Months Ended
	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Loss Contingencies [Line Items]
Number of RMBS Trustees Filing Suit		5
Litigation Settlement, Expense		$ 207
Successor [Member]
Loss Contingencies [Line Items]
Capital Leases, Future Minimum Payments, Remainder of Fiscal Year	$ 1,375,000
Operating Leases, Future Minimum Payments, Due in Two Years	6,168,000
Operating Leases, Future Minimum Payments, Due in Three Years	6,168,000
Operating Leases, Future Minimum Payments, Due Thereafter	14,947,000
Operating Leases, Future Minimum Payments Due	39,872,000
Capital Leases, Future Minimum Payments Due, Next Twelve Months	6,168,000
Capital Leases, Future Minimum Payments Due in Four Years	5,046,000
Settled Litigation [Member]
Loss Contingencies [Line Items]
Proceeds from Legal Settlements	$ 7,760,000