Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Long-Term Debt (Parenthetical) (Details)

v3.3.1.900
Long-Term Debt - Long-Term Debt (Parenthetical) (Details) - USD ($)
$ in Millions
Dec. 31, 2015
May. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]      
Aggregate annual maturities of long-term debt, 2016 $ 0.0    
Aggregate annual maturities of long-term debt, 2017 0.0    
Aggregate annual maturities of long-term debt, 2018 0.0    
Aggregate annual maturities of long-term debt, 2019 900.0    
Aggregate annual maturities of long-term debt, thereafter $ 300.0    
8.50% Senior Notes      
Debt Instrument [Line Items]      
Debt instrument interest rate 8.50%   8.50%
9.00% Term Loan due 2020      
Debt Instrument [Line Items]      
Debt instrument interest rate 9.00% 9.00%