FAIR VALUE MEASUREMENTS (Details 1) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	$ 7.0	$ 8.3	$ 9.4
Commodity forward contracts		7.6
Interest rate swaps	8.8	10.2	11.6
Commodity forward contracts	7.9		7.7
Earn out	23.3	42.0	35.3
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0	0	0
Commodity forward contracts		0.1
Interest rate swaps	0	0	0
Commodity forward contracts	0.3		1.3
Earn out	0	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	7.0	8.3	9.4
Commodity forward contracts		7.5
Interest rate swaps	8.8	10.2	11.6
Commodity forward contracts	7.6		6.4
Earn out	0	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0	0	0
Commodity forward contracts		0
Interest rate swaps	0	0	0
Commodity forward contracts	0		0
Earn out	$ 23.3	$ 42.0	$ 35.3