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Document and Entity Information
Nov. 07, 2024
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Nov. 07, 2024
Entity Registrant Name AMYLYX PHARMACEUTICALS, INC.
Entity Central Index Key 0001658551
Entity Incorporation State Country Code DE
Securities Act File Number 001-41199
Entity Tax Identification Number 46-4600503
Entity Address, Address Line One 43 Thorndike, St.,
Entity Address, City or Town Cambridge
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02141
City Area Code (617)
Local Phone Number 682-0917
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.0001 par value per share
Trading Symbol AMLX
Security Exchange Name NASDAQ
Entity Emerging Growth Company false