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INCOME TAXES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Income Tax Disclosure [Abstract]        
Effective tax rate (as a percent) 37.70% 25.00% 37.10% 30.50%
Federal statutory tax rate (as a percent) 35.00% 35.00% 35.00% 35.00%
Authorized recovery of income tax amounts previously expensed related to the Federal Health Care Reform Act   $ 5.9   $ 5.9