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Debt - Debt Refinancing and Senior Notes Due 2019 Exchange Transaction (Details) - USD ($)
9 Months Ended
Aug. 11, 2017
Apr. 26, 2017
Apr. 21, 2017
Mar. 01, 2017
Apr. 15, 2016
Sep. 30, 2017
Sep. 30, 2016
Jun. 30, 2017
Feb. 06, 2017
Dec. 31, 2016
Debt Instrument [Line Items]                    
Debt outstanding           $ 3,316,247,000       $ 3,853,012,000
Repurchase payments of long term debt           2,695,511,000 $ 1,037,591,000      
Class A Common Stock                    
Debt Instrument [Line Items]                    
Required amount of proceeds received in public offering for exchange agreement to occur         $ 400,000,000          
Gross proceeds from initial public offering, percent of equity value         10.00%          
Class A Common Stock | IPO                    
Debt Instrument [Line Items]                    
Sale of common stock in IPO (in dollars per share) $ 14.00               $ 14.00  
Second Amended and Restated Credit Agreement | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Borrowing under credit facility           0        
Second Amended and Restated Credit Agreement | Letter of Credit                    
Debt Instrument [Line Items]                    
Maximum borrowing capacity under credit facility   $ 141,000,000                
Second Amended and Restated Credit Agreement | Revolving Credit Facility and Term Loan                    
Debt Instrument [Line Items]                    
Incremental borrowing capacity   $ 300,000,000                
Debt to consolidated EBITDA ratio   275.00%                
Senior Notes                    
Debt Instrument [Line Items]                    
Debt outstanding           800,000,000       1,388,036,000
Senior Notes | Senior Notes Due 2019                    
Debt Instrument [Line Items]                    
Interest rate               9.25%    
Amount of debt to be exchanged         $ 250,000,000          
Repurchase price, percent       104.625%            
Debt outstanding $ 1,125,443,000                  
Redemption price 1,177,495,000                  
Principal amount redeemed $ 1,205,630,000                  
Shares converted (in shares) 18,683,000                  
Common stock shares issuable, percentage of aggregate principal amount 104.625%                  
Amount to be divided by initial public offering price per share, to determine number of shares authorized for exchange $ 261,600,000                  
Payment for interest and special interest accrued $ 11,100,000                  
Period for repurchase of additional principal amount         60 days          
Amount able to be purchased after IPO         $ 62,500,000          
Repurchase of aggregate principal amount       $ 22,556,000            
Repurchase payments of long term debt       $ 23,599,000            
Senior Notes | The Senior Notes due 2025                    
Debt Instrument [Line Items]                    
Debt outstanding   $ 800,000,000                
Senior Notes | The Senior Notes due 2025 | Debt Instrument, Redemption, Period One                    
Debt Instrument [Line Items]                    
Interest rate   8.25%                
Repurchase price, percent   106.188%                
Senior Notes | The Senior Notes due 2025 | Debt Instrument, Redemption, Period Two                    
Debt Instrument [Line Items]                    
Repurchase price, percent   100.00%                
Senior Notes | The Senior Notes due 2025 | Debt Instrument, Redemption, Period Three                    
Debt Instrument [Line Items]                    
Repurchase price, percent   108.25%                
Percentage of principal amount redeemed   40.00%                
Senior Notes | The Senior Notes due 2025 | Debt Instrument, Redemption, Period Four                    
Debt Instrument [Line Items]                    
Repurchase price, percent   100.00%                
Convertible Debt | Exchanged Notes                    
Debt Instrument [Line Items]                    
Amount of debt to be exchanged     $ 250,000,000              
Debt issuance costs           70,800,000        
Write off of deferred debt issuance costs           (8,425,000)        
Convertible Debt | Exchanged Notes | General and Administrative Expense                    
Debt Instrument [Line Items]                    
Loss on modification of debt           22,800,000        
Lines of credit                    
Debt Instrument [Line Items]                    
Debt outstanding           51,065,000       $ 66,081,000
Lines of credit | New Credit Agreement | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Maximum borrowing capacity under credit facility   $ 385,000,000                
Lines of credit | New Credit Facilities | Term Loan                    
Debt Instrument [Line Items]                    
Maximum borrowing capacity under credit facility   $ 1,600,000,000                
Lines of credit | Senior Secured Credit Facility | Term Loan                    
Debt Instrument [Line Items]                    
Amount of debt converted           $ 283,000,000        
Lines of credit | Second Amended and Restated Credit Agreement | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   3.50%                
Lines of credit | Second Amended and Restated Credit Agreement | Revolving Credit Facility | Alternate Base Rate (ABR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   2.50%                
Lines of credit | Second Amended and Restated Credit Agreement | Revolving Credit Facility | Maximum                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   3.75%                
Lines of credit | Second Amended and Restated Credit Agreement | Revolving Credit Facility | Minimum                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   2.75%                
Lines of credit | Second Amended and Restated Credit Agreement | Term Loan                    
Debt Instrument [Line Items]                    
Percentage of discount rate   1.00%                
Debt issuance costs   $ 16,000,000                
Percentage of amortization of debt discount   1.00%                
Lines of credit | Second Amended and Restated Credit Agreement | Term Loan | Debt Instrument, Covenant, Period One                    
Debt Instrument [Line Items]                    
Percentage of principal amount outstanding prepayment   101.00%                
Lines of credit | Second Amended and Restated Credit Agreement | Term Loan | Debt Instrument, Covenant, Period Two                    
Debt Instrument [Line Items]                    
Percentage of principal amount outstanding prepayment   100.00%                
Lines of credit | Second Amended and Restated Credit Agreement | Term Loan | London Interbank Offered Rate (LIBOR)                    
Debt Instrument [Line Items]                    
Total interest rate           5.73%        
Lines of credit | Second Amended and Restated Credit Agreement | Term Loan | Maximum                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   4.50%                
Lines of credit | Second Amended and Restated Credit Agreement | Term Loan | Minimum                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   3.50%                
Lines of credit | Second Amended and Restated Credit Agreement | Term Loan | Minimum | London Interbank Offered Rate (LIBOR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   4.25%                
Lines of credit | Second Amended and Restated Credit Agreement | Term Loan | Minimum | Alternate Base Rate (ABR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate   3.25%