v3.19.3.a.u2
Document and Entity Information
9 Months Ended
Sep. 28, 2019
Entity Information [Line Items]  
Document Type S-1
Amendment Flag false
Entity Registrant Name Grocery Outlet Holding Corp.
Entity Central Index Key 0001771515
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Incorporation, State or Country Code CA
Entity Tax Identification Number 47-1874201
Entity Primary SIC Number 5411
Business Contact [Member]  
Entity Information [Line Items]  
Contact Personnel Name Pamela B. Burke
Entity Address, Address Line One 5650 Hollis Street
Entity Address, City or Town Emeryville
Entity Address, State or Province DE
Entity Address, Postal Zip Code 94608
City Area Code 510
Local Phone Number 845-1999