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Long-term Debt - Schedule of Net Carrying Amount of Liability Component (Detail) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Convertible Debt    
Debt Instrument [Line Items]    
Outstanding principal amount $ 1,700,000 $ 1,700,000
Unamortized Issuance Costs (31,105) (32,855)
Net Carrying Value 1,668,895 1,667,145
Fair Value 1,666,197 1,831,054
Convertible Senior Notes due 2025 | Convertible Debt    
Debt Instrument [Line Items]    
Outstanding principal amount 650,000 650,000
Unamortized Issuance Costs (11,370) (12,118)
Net Carrying Value 638,630 637,882
Fair Value 908,622 1,056,679
Convertible Senior Notes due 2027 | Convertible Debt    
Debt Instrument [Line Items]    
Outstanding principal amount 1,050,000 1,050,000
Unamortized Issuance Costs (19,735) (20,737)
Net Carrying Value 1,030,265 1,029,263
Fair Value 757,575 774,375
Secured Notes Due Twenty Twenty Eight    
Debt Instrument [Line Items]    
Outstanding principal amount 500,000 500,000
Unamortized Issuance Costs (11,618) (11,994)
Fair Value 487,150 502,530
Net Carrying 488,382 $ 488,006
Secured Term Loan Due Twenty Twenty Five    
Debt Instrument [Line Items]    
Outstanding principal amount 205,000  
Unamortized Issuance Costs (412)  
Net Carrying $ 204,588