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Consolidated Statements of Operations (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Income Statement [Abstract]        
Loss from discontinued operations, income taxes $ 0.1 $ (3.0) $ 0.0 $ (3.0)
Loss on sale of discontinued operations, income taxes $ 0.0 $ 0.0 $ 0.0 $ 0.0