Income Taxes - Income Tax Expense (Benefit) from Continuing Operations Differed from Amount Computed by Applying Statutory Federal Income Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax benefit at the statutory federal income tax rate	$ (6,072)	$ (3,110)	$ (11,566)
State income taxes, net of federal benefit	(15)	99	(363)
Deductible domestic manufacturing costs	(787)	(594)	(395)
Non-deductible compensation	27	569	221
Non-deductible acquisition-related transaction costs	2,524	0	0
Non-deductible loss on derivative instrument	0	0	4,078
Change in liabilities for uncertain tax positions	0	(72)	(201)
Change in valuation allowance on unrealized capital losses	(223)	(117)	1,108
Other	(77)	(117)	(267)
Income tax benefit	$ (4,623)	$ (3,342)	$ (7,385)