Property and Equipment (Detail) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended		7 Months Ended	9 Months Ended
	Jul. 31, 2015	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Jul. 31, 2015	Sep. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 4,583	$ 4,583
Less: accumulated depreciation		76	76
Property and equipment, net		4,507	4,507
Selling, general, and administrative expenses
Property, Plant and Equipment [Line Items]
Depreciation expense		100
Predecessor
Property, Plant and Equipment [Line Items]
Property and equipment, gross							$ 6,134
Less: accumulated depreciation							2,000
Property and equipment, net							4,134
Predecessor | Selling, general, and administrative expenses
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 100			$ 100	$ 500	$ 500
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross		380	$ 380
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life (in years)			13 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life (in years)			20 years
Leasehold improvements | Predecessor
Property, Plant and Equipment [Line Items]
Property and equipment, gross							462
Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 3,347	$ 3,347
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life (in years)		3 years	1 year
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life (in years)		15 years	12 years
Equipment | Predecessor
Property, Plant and Equipment [Line Items]
Property and equipment, gross							5,118
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 856	$ 856
Construction in progress | Predecessor
Property, Plant and Equipment [Line Items]
Property and equipment, gross							$ 554