GOODWILL AND INTANGIBLE ASSETS, NET GOODWILL AND INTANGIBLE ASSETS, NET - INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets - Gross Carrying Amount	$ 83.9		$ 83.8
Definite-lived intangible assets - Accumulated Amortization	(65.9)		(65.4)
Definite-lived intangible assets - Net Carrying Amount	18.0		18.4
Aggregate Amortization Expense	0.5	$ 0.7
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
2017	2.0
2018	1.8
2019	1.7
2020	1.7
2021	$ 1.6
Technology
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets - Weighted Average Life (in years)	7 years
Definite-lived intangible assets - Gross Carrying Amount	$ 16.8		17.0
Definite-lived intangible assets - Accumulated Amortization	(15.6)		(15.7)
Definite-lived intangible assets - Net Carrying Amount	$ 1.2		1.3
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets - Weighted Average Life (in years)	20 years
Definite-lived intangible assets - Gross Carrying Amount	$ 32.8		33.1
Definite-lived intangible assets - Accumulated Amortization	(25.6)		(25.2)
Definite-lived intangible assets - Net Carrying Amount	$ 7.2		7.9
Land Use Rights
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets - Weighted Average Life (in years)	68 years
Definite-lived intangible assets - Gross Carrying Amount	$ 8.1		7.9
Definite-lived intangible assets - Accumulated Amortization	(1.0)		(0.9)
Definite-lived intangible assets - Net Carrying Amount	$ 7.1		7.0
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets - Weighted Average Life (in years)	8 years
Definite-lived intangible assets - Gross Carrying Amount	$ 26.2		25.8
Definite-lived intangible assets - Accumulated Amortization	(23.7)		(23.6)
Definite-lived intangible assets - Net Carrying Amount	$ 2.5		$ 2.2