Quarterly report pursuant to Section 13 or 15(d)

Debt - Summary of Outstanding Debt (Details)

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Debt - Summary of Outstanding Debt (Details) - USD ($)
Mar. 31, 2022
Dec. 31, 2021
Aug. 31, 2020
May 31, 2018
Convertible Notes due 2023        
Debt Instrument [Line Items]        
Face amount       $ 345,000,000
Convertible Notes due 2025        
Debt Instrument [Line Items]        
Face amount     $ 517,500,000  
Convertible Notes Payable | Convertible Notes due 2023        
Debt Instrument [Line Items]        
Face amount $ 345,000,000 $ 345,000,000    
Unamortized issuance costs on convertible notes (2,463,000) (2,979,000)    
Convertible notes carrying value 342,537,000 342,021,000    
Convertible Notes Payable | Convertible Notes due 2025        
Debt Instrument [Line Items]        
Face amount 517,500,000 517,500,000    
Unamortized issuance costs on convertible notes (9,940,000) (10,659,000)    
Convertible notes carrying value 507,560,000 506,841,000    
Revolving Credit Facility | Line of Credit        
Debt Instrument [Line Items]        
Revolving credit facility balance $ 0 $ 0