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FAIR VALUE MEASUREMENTS (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Carrying value
   
Fair value of financial instruments    
Cash and cash equivalents $ 229.7 $ 114.5
Accounts and notes receivable 177.9 182.3
Fixed rate debt 383.6 286.1
Fair value
   
Fair value of financial instruments    
Cash and cash equivalents 229.7 114.5
Accounts and notes receivable 177.9 182.3
Fixed rate debt 395.5 292.7
Fair value | Quoted Prices in Active Markets (Level 1)
   
Fair value of financial instruments    
Cash and cash equivalents 229.7 114.5
Fair value | Significant Observable Inputs (Level 2)
   
Fair value of financial instruments    
Accounts and notes receivable 177.9 182.3
Fixed rate debt $ 395.5 $ 292.7