Quarterly report pursuant to Section 13 or 15(d)

Debt - Schedule of Long-term Debt Instruments (Details)

v3.4.0.3
Debt - Schedule of Long-term Debt Instruments (Details) - USD ($)
Mar. 31, 2016
Dec. 31, 2015
Jun. 30, 2015
Dec. 31, 2012
Debt        
Capital leases $ 17,701,000 $ 12,892,000    
Total debt 5,721,751,000 5,455,533,000    
Less: total current maturities 5,501,000 4,764,000    
Less: total deferred financing costs for Notes 6,931,000 7,155,000    
Total long-term debt 5,709,319,000 5,443,614,000    
Senior Secured Revolving Credit Facility        
Debt        
Principal Amount 1,750,000,000   $ 1,750,000,000 $ 1,250,000,000
Carrying value $ 600,000,000 $ 340,000,000    
Senior Notes | 4.25% Senior Notes Due 2020        
Debt        
Stated interest rate 4.25% 4.25%    
Principal Amount $ 500,000,000      
Carrying value $ 496,475,000 $ 496,282,000    
Senior Notes | 5.875% Senior Notes Due 2020        
Debt        
Stated interest rate 5.875% 5.875%    
Principal Amount $ 650,000,000      
Carrying value $ 644,961,000 $ 644,720,000    
Senior Notes | 5.75% Senior Notes Due 2021        
Debt        
Stated interest rate 5.75% 5.75%    
Principal Amount $ 600,000,000      
Carrying value $ 595,883,000 $ 595,720,000    
Senior Notes | 4.625% Senior Notes Due 2023        
Debt        
Stated interest rate 4.625% 4.625%    
Principal Amount $ 500,000,000      
Carrying value $ 495,727,000 $ 495,602,000    
Senior Notes | 6.00% Senior Note Due July 15, 2024        
Debt        
Stated interest rate 6.00% 6.00%    
Principal Amount $ 1,500,000,000      
Carrying value $ 1,485,528,000 $ 1,485,196,000    
Senior Notes | 5.375% Senior Notes Due 2025        
Debt        
Stated interest rate 5.375% 5.375%    
Principal Amount $ 1,000,000,000      
Carrying value $ 989,665,000 $ 989,446,000    
Senior Secured Notes | 5.25% Senior Notes Due 2022        
Debt        
Stated interest rate 5.25% 5.25%    
Principal Amount $ 400,000,000      
Carrying value $ 395,811,000 $ 395,675,000