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Equity-based Compensation - Summary of Stock Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]      
Shares, Outstanding, Beginning Balance 8,101,980    
Options granted 1,616,255 2,182,773 2,832,784
Shares, Exercised (1,245,071)    
Shares, Cancelled or forfeited (660,182)    
Shares, Outstanding, Ending Balance 7,812,982 8,101,980  
Shares, Exercisable 4,598,353    
Shares, Vested or expected to vest 7,812,982    
Weighted-Average Exercise Price, Outstanding, Beginning Balance $ 42.44    
Weighted-Average Exercise Price, Granted 124.32 $ 68.91 $ 39.16
Weighted-Average Exercise Price, Exercised 30.96    
Weighted-Average Exercise Price, Cancelled or forfeited 79.54    
Weighted-Average Exercise Price, Outstanding, Ending Balance 58.07 $ 42.44  
Weighted-Average Exercise Price, Exercisable 40.86    
Weighted-Average Exercise Price, Vested or expected to vest $ 58.07    
Weighted-Average Remaining Contractual Term 7 years 4 months 24 days 7 years 9 months 18 days  
Weighted-Average Remaining Contractual Term, Exercisable 6 years 7 months 6 days    
Weighted-Average Remaining Contractual Term, Vested or expected to vest 7 years 4 months 24 days    
Aggregate Intrinsic Value, Outstanding Balance $ 219,103 $ 896,666  
Aggregate Intrinsic Value, Exercisable 174,056    
Aggregate Intrinsic Value, Vested or expected to vest $ 219,103