Income Taxes - Schedule of Effective Income Tax Rate Reconciliation for Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Statutory U.S. federal income tax rate	$ 4,360	$ (3,711)	$ 24,179
State taxes, net of federal benefit	1,439	2,039	2,536
Foreign rate differential, including withholding taxes	2,738	1,162	(10)
Valuation allowance	8,672	3,913	6,189
Italian subsidiary intangible asset	(2,546)	(2,288)	(2,214)
Goodwill impairment		6,452
Domestic manufacturing deduction	(377)	(233)	(1,567)
Settlement of U.S. Government resolutions			(1,260)
Italian audit settlement	1,048
Other, net	866	268	(3,909)
Income tax expense/effective rate	$ 16,200	$ 7,602	$ 23,944
Statutory U.S. federal income tax rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	11.60%	(19.20%)	3.70%
Foreign rate differential, including withholding taxes	21.90%	(11.00%)	0.00%
Valuation allowance	69.60%	(36.90%)	9.00%
Italian subsidiary intangible asset	(20.40%)	21.60%	(3.20%)
Goodwill impairment		(60.90%)
Domestic manufacturing deduction	(3.00%)	2.20%	(2.30%)
Settlement of U.S. Government resolutions			(1.80%)
Italian audit settlement	8.40%
Other, net	7.00%	(2.50%)	(5.70%)
Income tax expense/effective rate	130.10%	(71.70%)	34.70%