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Stock-Based Compensation - Additional information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Feb. 01, 2022
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares subject to vest for additional stock-based compensation recognized   292,469    
Share based payment award fair value assumptions grant date modification fair value   $ 2,200    
Share-based compensation arrangement by share based payment award modified vesting date   Mar. 31, 2022    
Incremental stock based compensation recognizable on event of business combination   $ 1,400    
Performance Based Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based payment award fair value assumptions grant date fair value on high level of performance   200    
Share based payment award fair value assumptions grant date fair value on non probable outcome       $ 0
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total fair value of restricted stock vested   $ 25 $ 3  
New GreenLight 2022 Equity and Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, capital shares reserved for future issuance 31,750,000      
Number of options granted   555,000    
Share based compensation arrangement by Share based payment award purchase price of fair market value Common Stock Percent 100.00%      
Award expiration period 10 years      
Intrinsic value of options exercised   $ 594    
New GreenLight 2022 Equity and Incentive Plan [Member] | Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average grant date fair value of stock options granted   $ 5.06 $ 0.51  
Total unrecognized compensation expense not yet recognized   $ 9,800    
Share based payment arrangement nonvested award cost not yet recognized period for recognition   2 years 8 months 12 days    
Intrinsic value of options exercised   $ 600 $ 100  
New GreenLight 2022 Equity and Incentive Plan [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period 5 years      
New GreenLight 2022 Equity and Incentive Plan [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period 4 years