Long-term Debt - Senior Notes Narrative (Details)
1 Months Ended 2 Months Ended 12 Months Ended
Dec. 19, 2016
Dec. 06, 2016
Sep. 02, 2016
May 31, 2016
May 06, 2016
Aug. 05, 2015
USD ($)
Jan. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Jan. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Jan. 19, 2016
USD ($)
Debt Instrument [Line Items]                          
Gain (loss) on extinguishment of debt                   $ (2,298,000) $ 0 $ 0  
Repayments of senior debt                   6,800,000 0 $ 0  
Long-term debt               $ 1,295,761,000   1,295,761,000 524,111,000    
Senior Notes | 9.75% senior notes due 2022                          
Debt Instrument [Line Items]                          
Gain (loss) on extinguishment of debt                   1,400,000      
Face amount of debt instrument               $ 801,395,000   $ 801,395,000      
Stated interest rate               9.75%   9.75%      
Debt repurchase program, authorized amount               $ 40,000,000   $ 40,000,000      
Amount of debt repurchased               8,600,000          
Repayments of senior debt               6,800,000          
Prepayment fees and interest               400,000          
Long-term debt               791,826,000   791,826,000 0    
Revolving credit facility | Global Operating LLC revolver                          
Debt Instrument [Line Items]                          
Long-term debt               $ 135,000,000   135,000,000 $ 0    
Global Operating LLC | Senior Notes | 9.75% senior notes due 2022                          
Debt Instrument [Line Items]                          
Face amount of debt instrument           $ 810,000,000              
Stated interest rate           9.75%              
Proceeds from debt issuance as a percentage of face value           98.753%              
Redemption price, percentage           101.00%              
Accounts payable | Senior Notes | 9.75% senior notes due 2022                          
Debt Instrument [Line Items]                          
Repurchase program, principal and interest due                   $ 400,000      
Subsequent event | Senior Notes                          
Debt Instrument [Line Items]                          
Amount of debt repurchased                 $ 49,600,000        
Subsequent event | Senior Notes | 9.75% senior notes due 2022                          
Debt Instrument [Line Items]                          
Face amount of debt instrument                         $ 760,400,000.0
Amount of debt repurchased             $ 41,000,000   49,600,000        
Repayments of senior debt             33,200,000   40,000,000        
Prepayment fees and interest             $ 1,900,000   $ 2,300,000        
Long-term debt                         $ 750,800,000
Subsequent event | Global Operating LLC revolver | 9.75% senior notes due 2022                          
Debt Instrument [Line Items]                          
Debt instrument, debt covenant, minimum threshold percentage of ownership for acceleration 50.00%                        
Subsequent event | Global Operating LLC | Senior Notes | 9.75% senior notes due 2022                          
Debt Instrument [Line Items]                          
Stated interest rate     4.00%                    
Redemption price, percentage     101.00%                    
Debt instrument, debt covenant, grace period for annual report       60 days                  
Debt instrument, debt covenant, cure period       90 days                  
Debt instrument, debt covenant, minimum threshold percentage of ownership for acceleration       25.00%                  
Debt covenant, waiver fee, per principal amount   0.0035 0.005                    
Subsequent event | Global Operating LLC | Revolving credit facility | Global Operating LLC revolver                          
Debt Instrument [Line Items]                          
Debt instrument, debt covenant, grace period for annual report         75 days