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Convertible debentures and warrants.

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Percentage of shares owned by shareholders.

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Reverse recapitalization exchange ratio.

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Warrants to purchase shares of common stock.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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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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Face (par) amount of debt instrument at time of issuance.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Amount of principal of debt repaid.

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Gross amount of debt extinguished.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

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Related Party Transactions - Additional Information (Details) - USD ($)			12 Months Ended
	May 16, 2023	Apr. 04, 2023	Oct. 31, 2023	Oct. 31, 2022	Oct. 20, 2022
Related Party Transaction [Line Items]
Amount of convertible debentures and warrants	$ 38,000,000
Initial maturity period	3 years
Accrued interest percentage	10.00%
Dividends or distributions declared or paid			$ 0
Exchange ratio			0.18048%
Common stock shares issued			23,197,976	665,767
Warrants to purchase shares of common stock			2,679,432
Convertible debt			$ 0	$ 17,405,000
Debenture
Related Party Transaction [Line Items]
Convertible debt					$ 18,400,000
Company Shareholders
Related Party Transaction [Line Items]
Amount of convertible debentures and warrants	$ 8,000,000
Forbion Growth Sponsor FEAC I B.V
Related Party Transaction [Line Items]
Amount of convertible debentures and warrants	20,000,000
Common stock shares issued			2,262,351
Number of securities into which the class of warrant or right may be converted			950,153
Investissement Quebec
Related Party Transaction [Line Items]
Amount of convertible debentures and warrants	10,000,000
FEAC
Related Party Transaction [Line Items]
Common stock shares issued			3,670,927
Number of securities into which the class of warrant or right may be converted			5,029,444
Old enGene's Equity and Convertible Note Holders
Related Party Transaction [Line Items]
Common stock shares issued			13,091,608
April 2023 Notes
Related Party Transaction [Line Items]
Principal amount		$ 8,000,000
Interest rate		15.00%
Amount of convertible debentures and warrants		$ 8,000,000
Maturity date		Jul. 31, 2023
Settlement and extinguishment		$ 8,000,000
Repayment	8,000,000
May 2023 Notes
Related Party Transaction [Line Items]
Amount of convertible debentures and warrants	30,000,000
May 2023 Financing
Related Party Transaction [Line Items]
Amount of convertible debentures and warrants	28,000,000
Cash	20,000,000
June 2023 Financing
Related Party Transaction [Line Items]
Principal amount	10,000,000
Cash	$ 10,000,000
Minimum
Related Party Transaction [Line Items]
Percentage of shares owned by shareholders			10.00%	10.00%
Minimum \| April 2023 Notes
Related Party Transaction [Line Items]
Aggregate sale of convertible promissory notes, warrants, preferred shares, common shares, or combined thereof		$ 20,000,000