INTANGIBLE ASSETS AND GOODWILL - Definited-lived Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 117,300
Accumulated amortization	(15,385)
Net intangible assets	$ 101,915	$ 107,118
Weighted average remaining years of useful life	11 years
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 82,300
Accumulated amortization	(9,668)
Net intangible assets	$ 72,632
Weighted average remaining years of useful life	11 years
Trademark
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 10,900
Accumulated amortization	(1,257)
Net intangible assets	$ 9,643
Weighted average remaining years of useful life	14 years
Developed Technology
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 24,100
Accumulated amortization	(4,460)
Net intangible assets	$ 19,640
Weighted average remaining years of useful life	7 years