Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Acquired Finite Lived Intangible Assets [Line Items]
Weighted-average amortization period for intangible assets			9 years 10 months 24 days
Amortization of intangible assets	$ 3,110	$ 2,628	$ 9,239	$ 7,872
Customer Lists [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Weighted-average amortization period for intangible assets			10 years 3 months 18 days
Patents and Technology [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Weighted-average amortization period for intangible assets			9 years 3 months 18 days
Trade Names and Trademarks [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Weighted-average amortization period for intangible assets			1 year 2 months 12 days