FAIR VALUE MEASUREMENTS (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Recurring Basis | Estimate of Fair Value
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Cash equivalents	$ 16.8	$ 17.1
Derivative assets	0	0.1
Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Cash equivalents	16.8	17.1
Derivative assets	0	0
Recurring Basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Cash equivalents	0	0
Derivative assets	0	0.1
Recurring Basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Cash equivalents	0	0
Derivative assets	0	0
Nonrecurring Basis
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Assets held for sale	1.1	1.3
Recognized Loss	3.6	3.4
Nonrecurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Assets held for sale	0	0
Nonrecurring Basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Assets held for sale	0	0
Nonrecurring Basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Assets held for sale	$ 1.1	$ 1.3