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Debt and Other Financing Arrangements - Additional Information (Details)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Jun. 30, 2015
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Debt Instrument [Line Items]                  
Payments of Debt Issuance Costs             $ 19.1 $ 11.1 $ 0.4
Write off of Deferred Debt Issuance Cost             2.1 5.9 3.7
Debt Issuance Costs, Noncurrent, Net $ 22.3           22.3    
Amortization of Debt Issuance Costs             $ 3.4 3.0 4.1
Debt Covenants [Abstract]                  
Consolidated total leverage ratio, maximum allowed under Line of Credit Facility             3.50    
Minimum consolidated interest coverage ratio             1.50    
Extinguishment of Debt Disclosures [Abstract]                  
Loss (Gain) on Extinguishment of Debt 3.2 $ 4.8 $ 11.4 $ 5.2 $ 2.4   $ (3.2) (19.0) (20.9)
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities             403.0 759.3 531.7
Tranche B Term Loan due 2024 [Member]                  
Debt Instrument [Line Items]                  
Payments of Debt Issuance Costs             12.9    
8% Senior Notes due 2025 [Member]                  
Debt Instrument [Line Items]                  
Payments of Debt Issuance Costs             $ 1.4    
Extinguishment of Debt Disclosures [Abstract]                  
Debt Instrument, Redemption Price, Percentage             100.00%    
8% Senior Notes [Member]                  
Debt Instrument [Line Items]                  
Payments of Debt Issuance Costs             $ 8.0    
Revolving Credit Facility and Receivables Facility [Member]                  
Debt Instrument [Line Items]                  
Payments of Debt Issuance Costs             4.6 2.0  
Other Noncurrent Assets [Member]                  
Debt Instrument [Line Items]                  
Debt Issuance Costs, Noncurrent, Net 5.1 $ 2.1         5.1 2.1  
Senior Notes due 2020 [Member]                  
Extinguishment of Debt Disclosures [Abstract]                  
Extinguishment of Debt, Amount               $ 478.5 $ 182.7
Debt Instrument, Redemption Price, Percentage               103.328% 105.543%
Loss (Gain) on Extinguishment of Debt               $ 17.8 $ 10.9
Senior Subordinated Notes due 2018 [Member]                  
Extinguishment of Debt Disclosures [Abstract]                  
Extinguishment of Debt, Amount           $ 300.0      
Debt Instrument, Redemption Price, Percentage           102.188%      
Loss (Gain) on Extinguishment of Debt           $ 10.4      
Tranche B Term Loan [Member]                  
Extinguishment of Debt Disclosures [Abstract]                  
Loss (Gain) on Extinguishment of Debt             $ 2.6    
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities $ 315.8