GOODWILL AND INTANGIBLE ASSETS - SUMMARY OF ACQUIRED AMORTIZABLE INTANGIBLE ASSETS (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 67.8
Weighted average amortization period (in years)	17 years 1 month
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 62.2
Weighted average amortization period (in years)	18 years 2 months
Patents, licenses and technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 0.3
Weighted average amortization period (in years)	15 years
Non-compete agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 1.9
Weighted average amortization period (in years)	5 years
Trade names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 3.4
Weighted average amortization period (in years)	5 years