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FAIR VALUE MEASUREMENTS (Details Textuals) (USD $)
In Millions, unless otherwise specified
2 Months Ended 6 Months Ended
Feb. 28, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Fair Value Disclosures [Abstract]        
Total earn out payment - SunBelt   $ 18.5    
Earn out payment - SunBelt   15.3 0  
Assets measured at fair value on a nonrecurring basis 180.6 0 0 0
Gain on remeasurement of investment in SunBelt 181.4 0 181.4  
Equity interest in SunBelt prior to remeasuring $ (0.8)      
Percent of ownership acquired in Sunbelt 50.00%