XML 66 R48.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurements (Narrative) (Details) - USD ($)
$ in Millions
Sep. 30, 2018
Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, current $ 39.1 $ 6.1
Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt, long-term and short-term, combined carrying value 126.3 132.4
Long-term debt, current 6.1 6.1
Long-term debt, fair value 60.5 61.7
Long-term debt, face amount 74.3 74.3
Payment in Kind (PIK) Note [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, current 33.0  
Long-term debt, carrying amount   31.3
Long-term debt, fair value $ 28.4 $ 25.1