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Debt Schedule of Debt (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Long-term debt, gross $ 228.3 $ 247.6
Debt increase for paid and accrued PIK interest 6.8  
Repurchase of debt (26.1)  
Write off of deferred financing cost (0.1)  
Deferred financing costs 0.5 0.6
Long-term debt $ 227.8 $ 247.0