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Property and Equipment, Net - Additional Information (Detail) - GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Property, Plant and Equipment [Line Items]      
Capital lease assets $ 2.5   $ 2.5
Capital lease accumulated amortization 1.6   $ 1.5
Depreciation and amortization expense $ 2.1 $ 1.1