XML 77 R66.htm IDEA: XBRL DOCUMENT v3.8.0.1
LONG-TERM OBLIGATIONS - 5-5/8% Senior Notes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Apr. 03, 2017
Mar. 31, 2017
Jan. 31, 2017
Nov. 26, 2012
Mar. 26, 2012
Nov. 13, 2007
Debt Instrument [Line Items]                    
Loss on early extinguishment of debt $ 0.7 $ 0.0 $ 52.6 $ 0.4            
Senior Notes                    
Debt Instrument [Line Items]                    
Loss on early extinguishment of debt     $ 43.7              
Senior Notes | 5-5/8% Notes                    
Debt Instrument [Line Items]                    
Face amount of debt             $ 600.0      
Interest rate (as a percent) 5.625%   5.625%       5.625%      
Long-term debt $ 600.0   $ 600.0              
Senior Notes | 6% Notes                    
Debt Instrument [Line Items]                    
Interest rate (as a percent) 6.00%   6.00%       6.00% 6.00%    
Tender offer for face amount of debt             $ 550.0      
Repurchased face amount of debt           $ 850.0 $ 300.0      
Long-term debt               $ 850.0   $ 800.0
Senior Notes | 6-1/2% Notes                    
Debt Instrument [Line Items]                    
Interest rate (as a percent) 6.50%   6.50%   6.50%          
Repurchased face amount of debt         $ 254.2 $ 45.8        
Long-term debt                 $ 300.0