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STOCK-BASED COMPENSATION - Summary of Stock Options Activity (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Number of Options    
Balance at beginning of period (in shares) | shares 5,407,170  
Exercised (in shares) | shares (1,022,050)  
Canceled (in shares) | shares (347,399)  
Balance at end of period (in shares) | shares 4,037,721 5,407,170
Number of shares, options vested and exercisable (in shares) | shares 3,011,042  
Weighted-Average Exercise Price    
Balance at beginning of period (in dollars per share) | $ / shares $ 0.96  
Exercised (in dollars per share) | $ / shares 0.60  
Canceled (in dollars per share) | $ / shares 1.19  
Balance at end of period (in dollars per share) | $ / shares 1.03 $ 0.96
Weighted-average exercise price, options vested and exercisable (in dollars per share) | $ / shares $ 0.90  
Stock Options Additional Disclosures    
Weighted-average remaining contractual term 6 years 5 months 26 days 7 years 1 month 28 days
Weighted-average remaining contractual term, options vested and exercisable 6 years 1 month 2 days  
Aggregate intrinsic value, balance | $ $ 22,738 $ 108,964
Aggregate intrinsic value, options vested and exercisable | $ $ 17,354