Income Taxes - Schedule of Effective Income Tax Rate Reconciliation for Continuing Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Statutory U.S. federal income tax rate	$ 2,978	$ 4,360	$ (3,711)
State taxes, net of U.S. federal benefit	521	1,439	2,039
Foreign rate differential, including withholding taxes	(1,934)	2,386	747
Valuation allowance	10,952	8,672	3,913
Italian subsidiary intangible asset	(2,076)	(2,546)	(2,288)
Goodwill impairment			6,452
Domestic manufacturing deduction	(469)	(377)	(233)
Italian audit settlement		1,048
Other, net	877	1,218	683
Income tax expense/effective rate	$ 10,849	$ 16,200	$ 7,602
Statutory U.S. federal income tax rate	35.00%	35.00%	35.00%
State taxes, net of U.S. federal benefit	6.10%	11.60%	(19.20%)
Foreign rate differential, including withholding taxes	(22.70%)	19.10%	(7.00%)
Valuation allowance	128.70%	69.60%	(36.90%)
Italian subsidiary intangible asset	(24.40%)	(20.40%)	21.60%
Goodwill impairment			(60.90%)
Domestic manufacturing deduction	(5.50%)	(3.00%)	2.20%
Italian audit settlement		8.40%
Other, net	10.30%	9.80%	(6.50%)
Income tax expense/effective rate	127.50%	130.10%	(71.70%)