Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Acquired Finite Lived Intangible Assets [Line Items]
Weighted-average amortization period for intangible assets	10 years 6 months
Amortization of intangible assets	$ 3,235	$ 3,281
Customer Lists [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Weighted-average amortization period for intangible assets	10 years 10 months 24 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