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Stock Compensation - Schedule of Stock Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Time-Based Stock Options [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Options and Warrants Outstanding, Number of Shares Beginning Balance 5,756,578  
Granted, Number of Shares 2,363,676  
Exercised, Number of Shares (960,768)  
Cancelled, Number of Shares (253,119)  
Options and Warrants Outstanding, Number of Shares Ending Balance 6,906,367 5,756,578
Shares, Vested 2,971,597  
Shares, Unvested 3,934,770  
Weighted Average Exercise Price Per Share, Outstanding Beginning Balance $ 7.59  
Weighted Average Exercise Price Per Share, Granted 34.20  
Weighted Average Exercise Price Per Share, Exercised 4.82  
Weighted Average Exercise Price Per Share, Cancelled 15.37  
Weighted Average Exercise Price Per Share, Outstanding Ending Balance 16.80 $ 7.59
Weighted Average Exercise Price Per Share, Vested 8.24  
Weighted Average Exercise Price Per Share, Unvested $ 23.27  
Weighted Average Remaining Contractual Life, Outstanding 7 years 10 months 24 days 7 years 7 months 17 days
Weighted Average Remaining Contractual Life, Vested 7 years 1 month 2 days  
Weighted Average Remaining Contractual Life, Unvested 8 years 6 months 3 days  
Aggregate Intrinsic Value, Outstanding Value $ 111,021 $ 196,634
Aggregate Intrinsic Value, Vested Value 68,991  
Aggregate Intrinsic Value, Unvested Value $ 42,029  
Performance-Based Stock Options [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Options and Warrants Outstanding, Number of Shares Beginning Balance 1,940,480  
Granted, Number of Shares 12,073  
Exercised, Number of Shares (35,768)  
Cancelled, Number of Shares (103,525)  
Options and Warrants Outstanding, Number of Shares Ending Balance 1,813,260 1,940,480
Shares, Vested 499,464  
Shares, Unvested 1,313,796  
Weighted Average Exercise Price Per Share, Outstanding Beginning Balance $ 5.22  
Weighted Average Exercise Price Per Share, Granted 33.39  
Weighted Average Exercise Price Per Share, Exercised 5.22  
Weighted Average Exercise Price Per Share, Cancelled 5.22  
Weighted Average Exercise Price Per Share, Outstanding Ending Balance 5.41 $ 5.22
Weighted Average Exercise Price Per Share, Vested 5.22  
Weighted Average Exercise Price Per Share, Unvested $ 5.48  
Weighted Average Remaining Contractual Life, Outstanding 8 years 1 month 9 days 8 years 6 months 29 days
Weighted Average Remaining Contractual Life, Vested 8 years 10 days  
Weighted Average Remaining Contractual Life, Unvested 8 years 1 month 20 days  
Aggregate Intrinsic Value, Outstanding Value $ 45,912 $ 70,517
Aggregate Intrinsic Value, Vested Value 12,731  
Aggregate Intrinsic Value, Unvested Value $ 33,181