Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Convertible Debt Instruments (Details)

v3.21.2
Long-Term Debt - Convertible Debt Instruments (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Fair Value $ 14,200,000  
Payment-in-kind interest premium   $ 19,300
Exchangeable Senior Notes Due 2024    
Debt Instrument [Line Items]    
Principal amount 862,500 862,500
Unamortized debt discount, including deferred financing fees (24,115) (27,559)
Net carrying amount $ 838,385 834,941
Remaining discount amortization period 2 years 10 months 24 days  
Exchangeable Senior Notes Due 2025    
Debt Instrument [Line Items]    
Principal amount $ 450,000 450,000
Unamortized debt discount, including deferred financing fees (9,691) (10,609)
Net carrying amount $ 440,309 439,391
Remaining discount amortization period 4 years 1 month 6 days  
Private Exchangeable Notes    
Debt Instrument [Line Items]    
Principal amount   414,311
Unamortized debt discount, including deferred financing fees   (136,163)
Net carrying amount   278,148
Level 2 | Exchangeable Senior Notes Due 2024    
Debt Instrument [Line Items]    
Fair Value $ 2,016,560 1,812,975
Level 2 | Exchangeable Senior Notes Due 2025    
Debt Instrument [Line Items]    
Fair Value $ 844,295 772,412
Level 2 | Private Exchangeable Notes    
Debt Instrument [Line Items]    
Fair Value   $ 1,098,082