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Share-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jul. 31, 2021
Jul. 28, 2021
Jul. 27, 2021
May 06, 2019
Oct. 23, 2018
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Jul. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vested during period (in shares)             1,112,839    
Total share-based compensation expense           $ 30,736 $ 2,841 $ 1,791  
Contractual term           10 years 10 years 10 years  
Granted (in shares)           1,584,805 412,000 2,757,696  
Fair value of options vested           $ 12,400 $ 1,900 $ 0  
Intrinsic value of options exercised           $ 5,300 $ 0    
Expected dividend yield           0.00% 0.00% 0.00%  
Unrecognized stock-based compensation expense related to stock options           $ 20,000      
Unvested (in shares)           1,073,529      
Class B Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vested (in shares)           131,251      
Liability balance related to unvested RSAs           $ 50      
IPO                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Sale of stock issue price per share (in dollars per share)     $ 26.00           $ 26.00
Unvested Carried Equity Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Liability balance             $ 200    
Unvested (in shares)             2,700,948    
Total share-based compensation expense             $ 600    
Carried Equity Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share price (in dollars per share)           $ 0.06      
Non-vested options forfeited (in shares)             0    
Stock options                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Total share-based compensation expense           $ 14,500 $ 2,300 $ 1,300  
Accelerated stock-based compensation expense           $ 10,300      
Accelerated vesting (in shares)           500,000      
Unrecognized stock-based compensation expense, weighted -average period for recognition           2 years 10 months 13 days      
Restricted stock awards                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Total share-based compensation expense           $ 11,500 $ 600    
Accelerated stock-based compensation expense           $ 11,100      
Accelerated vesting (in shares)           426,657      
Vested (in shares)           1,434,506      
Restricted stock awards | Minimum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period           1 year      
Restricted stock awards | Maximum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period           4 years      
Restricted stock units (RSUs)                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Total share-based compensation expense           $ 4,700      
Unrecognized stock-based compensation expense, weighted -average period for recognition           3 years      
Vested (in shares)           24,971      
Unvested (in shares)           1,073,529 0    
Forfeited (in shares)           86,363      
Granted (in shares)   1,068,654       1,184,863      
Unrecognized stock-based compensation expense, awards other than options           $ 23,600      
Restricted stock units (RSUs) | Minimum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period           1 year      
Restricted stock units (RSUs) | Maximum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period           4 years      
Employee Stock Purchase Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Total share-based compensation expense           $ 100      
Common stock, capital shares reserved for future issuance (in shares)           810,345      
Annual increase in shares authorized, percentage           1.00%      
Unrecognized stock-based compensation expense, awards other than options           $ 300      
Annual increase in shares reserved and available for issuance (in shares)           900,000      
Stock voting percentage threshold for participation in plan           5.00%      
ESPP offering period           6 months      
Enrollment period before relevant offering date           15 days      
2018 plan | Minimum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period           1 year      
2018 plan | Maximum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period           4 years      
2018 plan | Class A Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares issued under share-based payment arrangement (in shares)         4,868        
2018 plan | Class B Common Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares issued under share-based payment arrangement (in shares)         738,796     746,744  
Share price (in dollars per share)               $ 0.06  
2019 Plan | Minimum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period       3 years          
2019 Plan | Maximum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period       4 years          
2019 Plan | Class B Common Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Authorized for issuance (in shares)             9,450,667    
2021 Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Common stock, capital shares reserved for future issuance (in shares) 13,171,588                
Annual increase in shares authorized, percentage 5.00%                
2021 Plan | IPO                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Granted (in shares)     1,498,455            
2021 Plan | Stock options                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Contractual term 10 years                
2021 Plan | Stock options | Minimum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period     3 years            
2021 Plan | Stock options | Maximum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period     4 years