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Debt - Interest expense recognized (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Debt Instrument    
Amortization of debt discount and debt issuance costs $ (1,122) $ (95)
Convertible Senior Notes due 2026 | Senior Notes    
Debt Instrument    
Contractual interest expense (375) (83)
Revolving Credit Facility    
Debt Instrument    
Total (4,804) (178)
Revolving Credit Facility | Revolving credit facility    
Debt Instrument    
Contractual interest expense (313) 0
Revolving Credit Facility | Contractual interest expense - Term Loans    
Debt Instrument    
Contractual interest expense $ (2,994) $ 0