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Net Income Per Share (Schedule of Income Per Share) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Income Per Share Calculation [Line Items]        
Net income (loss) $ (2.9) $ (15.1) $ (17.5) $ (30.5)
Weighted average common shares 9.1 9.0 9.1 9.0
Denominator for basic calculation 9.1 9.0 9.1 9.0
Denominator for diluted calculation 9.1 9.0 9.1 9.0
Net loss per share - basic and diluted $ (0.32) $ (1.68) $ (1.92) $ (3.39)