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RELATED PARTY TRANSACTIONS (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Related Party Transactions [Abstract]          
Related Party Transaction, Revenues from Transactions with Related Party $ 0.7 $ 1.1 $ 1.1 $ 1.9  
Related Party Transaction, Due from (to) Related Party 0.4   0.4   0
Related Party Transaction, Expenses from Transactions with Related Party $ 0.7 $ 0.6 $ 1.4 $ 1.2