GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Net carrying amount	$ 491,372	$ 553,924
Amortization expense	62,600	47,400	$ 24,400
Future amortization expense
2016	68,000
2017	66,600
2018	65,700
2019	64,900
2020	64,900
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	231,620	231,620
Accumulated amortization	(70,349)	(57,246)
Net carrying amount	161,271	174,374
Customer contracts
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	395,690	446,233
Accumulated amortization	(65,589)	(66,683)
Net carrying amount	$ 330,101	$ 379,550