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Debt instrument current borrowings capacity amount.

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Debt instrument final payment fee charged as percentage of principal amount.

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Long term debt prepayment amount as a percentage of principal.

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The effective interest rate during the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Debt - Additional Information (Detail) - USD ($)		1 Months Ended			3 Months Ended
Debt - Additional Information (Detail) - USD ($)	Feb. 02, 2022	Feb. 28, 2022	Jan. 31, 2022	Dec. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Sep. 01, 2024	Sep. 22, 2023	Aug. 01, 2023	Sep. 22, 2022	Dec. 01, 2021	Sep. 01, 2021	Mar. 29, 2021
Debt Instrument [Line Items]
Proceeds from convertible debt					$ 21,750,000
Convertible instruments, surrendered and cancelled					815,000
Interest expense					1,073,000	$ 311,000
Convertible notes				$ 30,200,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member]
Debt Instrument [Line Items]
Long Term Debt				34,386,000	$ 34,430,000
Debt Instrument Final Payment Fee Charged As Percentage Of Principal Amount					3.00%
Debt instrument, Carrying amount				35,446,000	$ 34,430,000
Interest expense					1,000,000.0	$ 300,000
Convertible notes				16,800,000	0
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Series D Preferred Stock [Member]
Debt Instrument [Line Items]
Debt conversion, converted instrument, shares issued	10,100,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Warrant [Member] \| Master Equipment Financing Agreement [Member] \| Equipment Financing [Member]
Debt Instrument [Line Items]
Fair Value Of warrants In Debt Issuance Cost					100,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Trinity Capital [Member] \| Master Equipment Financing Agreement [Member] \| Equipment Financing [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					$ 400,000
Warrants Issued					219,839
Long Term Debt													$ 11,300,000
Debt instrument, Current borrowings capacity												$ 5,000,000.0
Interest Rate					3.25%
Debt Instrument Advances Drawn					$ 11,300,000
Long-term debt repayment period in months					36
Debt instrument, Carrying amount					$ 14,700,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Scenario Forecast [Member] \| Prepayment Year One [Member]
Debt Instrument [Line Items]
Long Term Debt Prepayment Amount As A Percentage Of Principal									3.00%
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Scenario Forecast [Member] \| Prepayment Year Two [Member]
Debt Instrument [Line Items]
Long Term Debt Prepayment Amount As A Percentage Of Principal									2.00%
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Scenario Forecast [Member] \| Prepayment Year Three [Member]
Debt Instrument [Line Items]
Long Term Debt Prepayment Amount As A Percentage Of Principal									1.00%
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Horizon Term Loan [Member]
Debt Instrument [Line Items]
Long Term Debt				14,418,000	$ 14,521,000
Debt Instrument Maturity Date					Feb. 01, 2023
Debt Instrument Maturity Date					Jul. 01, 2025
Proceeds from Issuance of Debt					$ 600,000
Debt instrument, Carrying amount				15,000,000	15,000,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Horizon Term Loan [Member] \| Warrant [Member]
Debt Instrument [Line Items]
Fair Value Of warrants In Debt Issuance Cost					400,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Horizon Term Loan [Member] \| Horizon Technology Finance Corporation [Member] \| Powerscourt Investments XXV, LP (Horizon) [Member]
Debt Instrument [Line Items]
Long Term Debt											$ 25,000,000.0
Debt instrument Current Borrowings Capacity											$ 15,000,000.0
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Horizon Term Loan [Member] \| Scenario Forecast [Member]
Debt Instrument [Line Items]
Debt Instrument Unused Borrowing Capacity									$ 10,000,000.0
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Silicon Valley Bank Term Loan [Member]
Debt Instrument [Line Items]
Long Term Debt				9,775,000	$ 9,807,000
Debt Instrument Unused Borrowing Capacity												5,000,000.0
Debt Instrument Maturity Date					Sep. 01, 2024
Debt Instrument Final Payment Fee Charged As Percentage Of Principal Amount					4.00%
Proceeds from Issuance of Debt					$ 300,000
Warrants Issued					51,724
Debt Issuance Cost					$ 400,000
Debt instrument, Carrying amount				10,000,000	10,000,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Silicon Valley Bank Term Loan [Member] \| Warrant [Member]
Debt Instrument [Line Items]
Fair Value Of warrants In Debt Issuance Cost					200,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Silicon Valley Bank Term Loan [Member] \| Silicon Valley Bank [Member] \| Loan And Security Agreement [Member]
Debt Instrument [Line Items]
Long Term Debt												15,000,000.0
Debt instrument Current Borrowings Capacity												$ 10,000,000.0
Debt Instrument Remaining Borrowings Capacity					5,000,000.0
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Silicon Valley Bank Term Loan [Member] \| Scenario Forecast [Member] \| Prepayment Year One [Member]
Debt Instrument [Line Items]
Long Term Debt Prepayment Amount As A Percentage Of Principal										3.00%
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Silicon Valley Bank Term Loan [Member] \| Scenario Forecast [Member] \| Prepayment Year Two [Member]
Debt Instrument [Line Items]
Long Term Debt Prepayment Amount As A Percentage Of Principal								2.00%
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Silicon Valley Bank Term Loan [Member] \| Scenario Forecast [Member] \| Prepayment Year Three [Member]
Debt Instrument [Line Items]
Long Term Debt Prepayment Amount As A Percentage Of Principal							1.00%
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Two Thousand And Twenty One PIPE Notes [Member] \| Convertible Debt [Member]
Debt Instrument [Line Items]
Proceeds from convertible debt			$ 21,800,000	$ 13,500,000	$ 35,300,000
Convertible instruments, surrendered and cancelled		$ 35,300,000
GREENLIGHT BIOSCIENCES HOLDINGS, PBC [Member] \| Two Thousand And Twenty Notes [Member] \| Convertible Debt [Member]
Debt Instrument [Line Items]
Convertible notes	$ 16,800,000