INTANGIBLE ASSETS - Additional Information (Detail) - USD ($) $ in Millions	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	May 31, 2015	May 31, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 5.5	$ 16.1	$ 3.8	$ 3.7
Finite-Lived Intangible Assets, Amortization Expense, 2017		16.0
Finite-Lived Intangible Assets, Amortization Expense, 2018		16.0
Finite-Lived Intangible Assets, Amortization Expense, 2019		16.0
Finite-Lived Intangible Assets, Amortization Expense, 2020		15.0
Finite-Lived Intangible Assets, Amortization Expense, 2021		$ 15.0
Intangible assets, Estimated weighted average useful life		13 years 2 months 18 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated weighted average useful life		13 years 6 months
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated weighted average useful life		4 years 6 months
Trade names
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated weighted average useful life		12 years 6 months
Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated weighted average useful life		9 years 6 months
Licenses
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated weighted average useful life		8 years 9 months 18 days