v3.20.4
CORPORATE BORROWINGS AND FINANCE LEASE OBLIGATIONS - Senior Unsecured Convertible Notes narrative (Details)
1 Months Ended 4 Months Ended 12 Months Ended
Dec. 14, 2020
USD ($)
$ / shares
shares
Sep. 14, 2020
USD ($)
$ / shares
Jul. 31, 2020
USD ($)
item
shares
Sep. 14, 2018
USD ($)
item
$ / shares
Jul. 31, 2020
USD ($)
item
Dec. 31, 2018
USD ($)
Dec. 31, 2020
USD ($)
item
$ / shares
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Sep. 13, 2020
$ / shares
Sep. 04, 2018
USD ($)
Jul. 14, 2018
USD ($)
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Long-term Debt, Gross             $ 5,411,600,000 $ 4,910,800,000        
Debt exchange amount     $ 1,700,000,000   $ 1,700,000,000              
Amortization of Debt Discount (Premium)             (22,000,000.0) 11,300,000 $ 200,000      
Derivative liability               500,000        
Debt issuance costs             42,100,000 88,800,000        
Interest expense             311,000,000.0 292,800,000 262,300,000      
Other expense             (28,900,000) $ (13,400,000) 108,100,000      
Twelve-month period beginning on June 15, 2023                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     102.625%                  
Any time thereafter                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     100.00%                  
Second Lien Notes due 2026                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Long-term Debt, Gross     $ 1,997,400,000   $ 1,997,400,000   $ 1,423,600,000          
Amortization of Debt Discount (Premium)     $ 535,100,000                  
PIK interest rate     12.00%       12.00%          
Number of interest periods | item     3   3              
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     100.00%                  
Redemption price of debt instrument (as a percent)     101.00%                  
Debt instrument face amount     $ 1,289,100,000   $ 1,289,100,000   $ 173,200,000          
Percentage of difference between the present value of the old and new cash flows             10.00%          
Stated interest rate (as a percent)     10.00%   10.00%   10.00%          
Second Lien Notes due 2026 | Twelve-month period beginning on June 15, 2023                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     106.00%                  
Second Lien Notes due 2026 | Twelve-month period beginning on June 15, 2024                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     103.00%                  
Second Lien Notes due 2026 | Any time thereafter                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     100.00%                  
Second Lien Notes due 2026 | At the time of sale of assets                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Redemption price of debt instrument (as a percent)     100.00%                  
Second Lien Notes due 2026 | Minimum                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Debt Instrument, Interest Due Term     12 months                  
Second Lien Notes due 2026 | Maximum                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Debt Instrument, Interest Due Term     18 months                  
10.5 % First Lien Notes due 2026                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Long-term Debt, Gross     $ 300,000,000   $ 300,000,000   $ 300,000,000.0          
Original issue discount     $ 36,000,000   36,000,000              
Amortization of Debt Discount (Premium)             30,000,000.0          
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     110.50%                  
Redemption price of debt instrument (as a percent)     100.00%                  
Debt instrument face amount     $ 200,000,000   $ 200,000,000   $ 300,000,000          
Stated interest rate (as a percent)     10.50%   10.50%   10.50% 10.50%        
Debt issuance costs             $ 6,000,000.0          
10.5 % First Lien Notes due 2026 | Sell assets of subsidiaries and company                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     100.00%                  
10.5 % First Lien Notes due 2026 | Change of control                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     101.00%                  
10.5 % First Lien Notes due 2026 | Prior to June 15, 2022                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     100.00%                  
10.5 % First Lien Notes due 2026 | Twelve-month period beginning on June 15, 2022                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     105.25%                  
10.5 % First Lien Notes due 2026 | Maximum                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Redemption price of debt instrument (as a percent)     35.00%                  
10.5 % First Lien Notes due 2026 | Class A common stock                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Number of Prorata Shares | shares     5,000,000       5,000,000          
Percentage of Outstanding Shares of Entity     4.60%                  
Common Stock, Value, Outstanding     $ 20,200,000   $ 20,200,000              
10.5 % First Lien Notes due 2026 | Silver Lake Group, L.L.C                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Debt instrument face amount     100,000,000   100,000,000              
Senior Subordinated Notes                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Reduction in principal amount     $ 555,000,000   555,000,000              
Percentage of redemption of debt on aggregate principal amount and accrued and unpaid interest     23.90%                  
Debt instrument face amount     $ 1,782,500,000   1,782,500,000   $ 235,000,000.0          
Restructured amount         2,020,000,000.00              
Fees paid to third parties             39,300,000          
Senior Subordinated Notes | Minimum                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Cash Savings Due to Interest Payments     120,000,000                  
Senior Subordinated Notes | Maximum                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Cash Savings Due to Interest Payments     180,000,000                  
2.95% Senior Secured Convertible Notes due 2024                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Long-term Debt, Gross               $ 600,000,000.0        
Debt instrument face amount     1,462,300,000   $ 1,462,300,000              
Restructured amount     $ 600,000,000                  
Adjusted conversion price | $ / shares   $ 13.51               $ 18.95    
Principal balance       $ 600,000,000.0     $ 600,000,000.0          
Stated interest rate (as a percent)     2.95% 2.95% 2.95%   2.95% 2.95%        
Change fair value of derivative             $ 89,400,000 $ (23,500,000) (66,400,000)      
If-converted value in excess of principal             $ 505,800,000          
Price per share (in dollars per share) | $ / shares             $ 2.12          
Conversion rate (in dollars per share) | $ / shares   13.51               $ 18.95    
Number of shares upon conversion | item             44,422,860          
Minimum conversion price percentage causing a reset conversion price       120.00%                
Debt issuance costs             $ 9,500,000          
Interest expense           $ 9,700,000 31,800,000 32,600,000        
Other expense             19,600,000 $ 17,700,000 $ (45,000,000.0)      
Maximum dividends allowed through the second anniversary of issuance | $ / shares       $ 0.20                
Maximum dividends allowed after the second anniversary of issuance | $ / shares       0.10                
2.95% Senior Secured Convertible Notes due 2024 | Other expense                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Immaterial correction expense             $ 26,200,000          
2.95% Senior Secured Convertible Notes due 2024 | Class A common stock                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Conversion Price | $ / shares   13.51                    
Adjusted conversion price | $ / shares   6.55   $ 18.95     $ 13.51          
Principal balance                       $ 1,000
Conversion rate       52.7704     31,662,240          
Conversion rate (in dollars per share) | $ / shares   $ 6.55   $ 18.95     $ 13.51          
Number of shares upon conversion             44,422,860          
Maximum allowed percentage of outstanding fully-diluted share capital resulting a conversion price floor   30.00%   30.00%                
2.95% Senior Secured Convertible Notes due 2024 | Class B common stock                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Derivative Asset                     $ 10,700,000  
2.95% Senior Secured Convertible Notes due 2024 | Class B common stock | Maximum                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Number of shares upon conversion | item       5,666,000                
Convertible Notes due 2026                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Percentage of difference between the present value of the old and new cash flows     10.00%                  
Restructured amount     $ 600,000,000                  
Principal balance     $ 600,000,000.0   $ 600,000,000.0              
Derivative liability       $ 90,400,000                
Effective interest rate       5.98%                
Convertible Notes due 2026 | Class A common stock                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Restructured amount   $ 600,000,000.0                    
Mudrick Capital Management LP [Member] | Class A common stock                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Price per share (in dollars per share) | $ / shares $ 3.19                      
Mudrick Capital Management LP [Member] | Second Lien Notes due 2026                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Principal amount $ 104,500,000           $ 104,500,000          
Consideration received for conversion | shares 13,736,264                      
Mudrick Capital Management LP [Member] | Second Lien Notes due 2026 | Class A common stock                        
CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS                        
Principal amount $ 100,000,000                      
Waived off PIK interest $ 4,500,000                      
Restructured amount             $ 137,400,000