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Cover | 12 Months Ended
--- | ---
Dec. 31, 2023
Document Information [Line Items] |
Document Type | POS AM
Entity Registrant Name | Spyre Therapeutics, Inc.
Entity Incorporation, State or Country Code | DE
Entity Tax Identification Number | 46-4312787
Entity Address, Address Line One | 221 Crescent Street
Entity Address, Address Line Two | Building 23
Entity Address, Address Line Three | Suite 105
Entity Address, City or Town | Waltham
Entity Address, State or Province | MA
Entity Address, Postal Zip Code | 02453
City Area Code | 617
Local Phone Number | 651-5940
Entity Filer Category | Non-accelerated Filer
Entity Small Business | true
Entity Emerging Growth Company | false
Entity Central Index Key | 0001636282
Amendment Flag | false
Business Contact [Member] |
Document Information [Line Items] |
Entity Address, Address Line One | 221 Crescent Street
Entity Address, Address Line Two | Building 23
Entity Address, Address Line Three | Suite 105
Entity Address, City or Town | Waltham
Entity Address, State or Province | MA
Entity Address, Postal Zip Code | 02453
City Area Code | 617
Local Phone Number | 651-5940
Contact Personnel Name | Heidy King-Jones

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