Stock-Based Compensation - Summary of Stock Options Activity (Details) - New GreenLight 2022 Equity and Incentive Plan [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Beginning balance, Shares	18,101,548
Shares, Granted	555,000
Shares, Exercised	(79,055)
Shares, Cancelled or forfeited	(72,127)
Ending balance, Shares	18,505,366	18,101,548
Shares, Vested and expected to vest	18,505,366
Shares, Exercisable	8,337,001
Beginning balance, Weighted-Average Exercise Price	$ 1.14
Weighted-Average Exercise Price, Granted	9.15
Weighted-Average Exercise Price, Exercised	0.32
Weighted-Average Exercise Price, Cancelled or forfeited	0.27
Ending balance, Weighted-Average Exercise Price	0.71	$ 1.14
Weighted-Average Exercise Price, Vested and expected to vest	0.71
Weighted-Average Exercise Price, Exercisable	$ 0.54
Weighted-Average Remaining Contractual Term	7 years 9 months 18 days	8 years
Weighted-Average Remaining Contractual Term, Vested and expected to vest	7 years 9 months 18 days
Weighted-Average Remaining Contractual Term, Exercisable	6 years 3 months 18 days
Beginning balance, Aggregate Intrinsic Value	$ 139,505
Aggregate Intrinsic Value, Exercised	594
Ending balance, Aggregate Intrinsic Value	141,869	$ 139,505
Aggregate Intrinsic Value, Vested and expected to vest	141,869
Aggregate Intrinsic Value, Exercisable, Aggregate Intrinsic Value	$ 69,248