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Cover Document
Apr. 09, 2026
Jul. 10, 2025
Document Information [Line Items]    
Entity Central Index Key 0001702744  
Entity Incorporation, State or Country Code   DE
Document Type 8-K  
Document Period End Date Apr. 09, 2026  
Entity Registrant Name The Simply Good Foods Company  
Entity File Number   001-38115
Entity Tax Identification Number   82-1038121
Entity Address, Address Line One 1225 17th Street, Suite 1000  
Entity Address, City or Town Denver  
Entity Address, State or Province CO  
Entity Address, Postal Zip Code 80202  
City Area Code 303  
Local Phone Number 633-2840  
Title of 12(b) Security Common Stock, par value $0.01 per share  
Trading Symbol SMPL  
Security Exchange Name NASDAQ  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Entity Emerging Growth Company false  
Amendment Flag false