Quarterly report pursuant to Section 13 or 15(d)

Long-term Debt - Summary of Components of Convertible Notes (Details)

v3.21.2
Long-term Debt - Summary of Components of Convertible Notes (Details) - Convertible Senior Notes - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Principal $ 294,000,000  
Convertible Senior Notes    
Debt Instrument [Line Items]    
Principal 294,000,000 $ 294,000,000
Accrued interest 2,000,000 2,000,000
Less: Unamortized financing costs (4,000,000) (5,000,000)
Carrying value of Convertible Senior Notes $ 292,000,000 $ 291,000,000