INTANGIBLE ASSETS - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Amortization Expense, 2019	$ 14.0
Finite-Lived Intangible Assets, Amortization Expense, 2020	14.0
Finite-Lived Intangible Assets, Amortization Expense, 2021	13.0
Finite-Lived Intangible Assets, Amortization Expense, 2022	13.0
Finite-Lived Intangible Assets, Amortization Expense, 2023	13.0
Amortization expense	$ 28.7	$ 16.5	$ 16.1
Intangible assets, estimated weighted average useful life	13 years 6 months 18 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated weighted average useful life	13 years 7 months
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated weighted average useful life	4 years 8 months
Trade names
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated weighted average useful life	14 years 4 months
Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated weighted average useful life	9 years 11 months 6 days
Licenses
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated weighted average useful life	10 years 7 months 18 days
Intangible Assets, Amortization Period
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 12.0