Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Acquired Finite Lived Intangible Assets [Line Items]
Estimated Useful life (years)	10 years 1 month 6 days
Amortization of intangible assets	$ 3,062	$ 2,609
Customer Lists [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Estimated Useful life (years)	10 years 6 months
Patents and Technology [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Estimated Useful life (years)	9 years 2 months 12 days
Trade Names and Trademarks [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Estimated Useful life (years)	1 year 2 months 12 days