Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Narrative (Details)

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Fair Value Measurements - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Fair Value Measurements      
Fair market value adjustment to contingent consideration liability $ 0 $ (140)  
Convertible Notes due 2023      
Fair Value Measurements      
Debt instrument, fair value disclosure 418,300   $ 439,900
Convertible Notes due 2023 | Carrying Value      
Fair Value Measurements      
Convertible notes 342,500   342,000
Convertible Notes due 2025      
Fair Value Measurements      
Debt instrument, fair value disclosure 505,900   526,100
Convertible Notes due 2025 | Carrying Value      
Fair Value Measurements      
Convertible notes 507,600   506,800
Private A I Company Acquisition      
Fair Value Measurements      
Fair market value adjustment to contingent consideration liability $ 800   $ 700