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Convertible Senior Notes - Outstanding (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Debt    
Net carrying amount $ 140,415 $ 139,966
Convertible senior notes    
Debt    
Principal 143,750  
Less: unamortized issuance costs (3,335)  
Net carrying amount $ 140,415  
Debt instrument term 6 years  
Effective interest rate 3.26%