v3.26.1
Cover
Apr. 29, 2026
Entity Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Apr. 29, 2026
Entity File Number 001-38250
Entity Registrant Name FAT Brands Inc.
Entity Central Index Key 0001705012
Entity Tax Identification Number 82-1302696
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 9720 Wilshire Blvd.,
Entity Address, Address Line Two Suite 500,
Entity Address, City or Town Beverly Hills,
Entity Address, State or Province CA
Entity Address, Postal Zip Code 90212
City Area Code (310)
Local Phone Number 319-1850
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Twin Hospitality Group Inc [Member]  
Entity Information [Line Items]  
Entity File Number 001-42395
Entity Registrant Name Twin Hospitality Group Inc.
Entity Tax Identification Number 99-1232362
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 5151 Belt Line Road
Entity Address, Address Line Two Suite 1200
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75254