Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands			9 Months Ended
	Oct. 06, 2016	Oct. 01, 2016	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	[1]
Subsequent Event [Line Items]
Repayment of notes payable-principal			$ 2,185	$ 3,330
Notes payable - principal			$ 19,558		$ 21,743
Subsequent Event [Member]
Subsequent Event [Line Items]
Proceed from reserve settlement agreement released	$ 123
Litigation proceeds initially deposited	3,000
Litigation settlement reserve for reimbursement of contingent fees and expenses	2,000
Subsequent Event [Member] | Litigation Proceeds First Distribution Member
Subsequent Event [Line Items]
Reserve settlement agreement released amount	500
Subsequent Event [Member] | Litigation Proceeds Second Distribution Member
Subsequent Event [Line Items]
Reserve settlement agreement released amount	$ 500
Second Lien Notes [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Repayment of notes payable-principal		$ 400
Repayment of notes payable-interest		4
Notes payable - principal		$ 19,200

[1] Balances derived from audited financial statements as of December 31, 2015.