Goodwill and Intangible Assets - Components of Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Acquired Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, Cost	$ 111,198	$ 109,487
Finite lived intangible assets, Accumulated amortization	(25,554)	(16,315)
Finite lived intangible assets, Net	85,644	93,172
Customer Lists [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, Cost	91,757	90,212
Finite lived intangible assets, Accumulated amortization	(17,837)	(11,319)
Finite lived intangible assets, Net	$ 73,920	78,893
Customer Lists [Member] | Minimum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Useful life (years)	5 years
Customer Lists [Member] | Maximum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Useful life (years)	14 years
Patents and Technology [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, Cost	$ 16,557	16,390
Finite lived intangible assets, Accumulated amortization	(5,513)	(4,090)
Finite lived intangible assets, Net	$ 11,044	12,300
Patents and Technology [Member] | Minimum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Useful life (years)	5 years
Patents and Technology [Member] | Maximum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Useful life (years)	10 years
Trade Names and Trademarks [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, Cost	$ 2,884	2,885
Finite lived intangible assets, Accumulated amortization	(2,204)	(906)
Finite lived intangible assets, Net	$ 680	$ 1,979
Trade Names and Trademarks [Member] | Minimum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Useful life (years)	1 year
Trade Names and Trademarks [Member] | Maximum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Useful life (years)	2 years