ACCUMULATED OTHER COMPREHENSIVE LOSS AND OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Reclassified out of accumulated other comprehensive income (loss) and related tax effects
Currency translation adjustments	$ (11.5)	$ 7.0
Cost of sales	899.0	756.4
Adjustments to pension liabilities	(0.5)	(0.4)
Other comprehensive income (loss), before income taxes	(11.0)	6.0
Provision for (benefit from) income taxes	0.8	18.4
Other comprehensive income (loss), net of tax	(7.7)	2.9
Reclassified out of accumulated other comprehensive income (loss)
Reclassified out of accumulated other comprehensive income (loss) and related tax effects
Other comprehensive income (loss), before income taxes	(11.0)	6.0
Provision for (benefit from) income taxes	(3.3)	3.1
Other comprehensive income (loss), net of tax	(7.7)	2.9
Change in foreign currency translation adjustment | Reclassified out of accumulated other comprehensive income (loss)
Reclassified out of accumulated other comprehensive income (loss) and related tax effects
Currency translation adjustments	(11.5)	7.0
Provision for (benefit from) income taxes	(3.4)	3.5
Other comprehensive income (loss), net of tax	(8.1)	3.5
Unrealized loss on derivatives | Natural gas hedge contracts | Reclassified out of accumulated other comprehensive income (loss)
Reclassified out of accumulated other comprehensive income (loss) and related tax effects
Cost of sales		(1.4)
Provision for (benefit from) income taxes		(0.5)
Other comprehensive income (loss), net of tax		(0.9)
Change in pension liability adjustment | Reclassified out of accumulated other comprehensive income (loss)
Reclassified out of accumulated other comprehensive income (loss) and related tax effects
Adjustments to pension liabilities	0.5	0.4
Provision for (benefit from) income taxes	0.1	0.1
Other comprehensive income (loss), net of tax	$ 0.4	$ 0.3