Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Assumptions (Details)

v3.22.2
STOCK-BASED COMPENSATION - Assumptions (Details) - Employee stock options - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Weighted-average assumptions relating to options granted        
Risk-free interest rate (as a percent) 2.90% 1.30% 1.90% 1.00%
Expected term (in years) 6 years 6 months 6 years 7 months 6 days 6 years 6 months 6 years 6 months
Dividend yield (as a percent) 0.00% 0.00% 0.00% 0.00%
Expected volatility (as a percent) 70.30% 70.50% 70.00% 70.60%
Additional disclosures        
Grant-date weighted-average fair value (in dollars per share)     $ 1.63  
Vesting upon achievement of corporate performance-based milestones        
Additional disclosures        
Total unrecognized compensation costs $ 5.0   $ 5.0