Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Restricted Stock??Units Activity (Details)

v3.22.2.2
STOCK-BASED COMPENSATION - Restricted Stock Units Activity (Details)
shares in Thousands
9 Months Ended
Sep. 30, 2022
$ / shares
shares
Feb. 11, 2022
Weighted Average Grant Date Fair Value per Share    
Beginning balance (in dollars per share) $ 0.73  
RSUs granted (in dollars per share) 0  
RSUs vested (in dollars per share) 0.73  
Ending balance (in dollars per share) $ 0  
Energy Vault Holdings Inc    
Weighted Average Grant Date Fair Value per Share    
Exchange ratio   6.7735
Restricted stock units    
Unvested Common Stock    
Beginning balance (in shares) | shares 6,170  
RSUs granted (in shares) | shares 13,281  
RSUs forfeited (in shares) | shares (516)  
RSUs vested (in shares) | shares (4,450)  
Ending balance (in shares) | shares 14,485  
Weighted Average Grant Date Fair Value per Share    
Beginning balance (in dollars per share) $ 2.11  
RSUs granted (in dollars per share) 9.08  
RSUs forfeited (in dollars per share) 5.58  
RSUs vested (in dollars per share) 1.06  
Ending balance (in dollars per share) $ 8.02