Cover - shares	3 Months Ended
	Mar. 30, 2024	May 08, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 30, 2024
Document Transition Report	false
Entity File Number	001-41733
Entity Registrant Name	Savers Value Village, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-4165683
Entity Address, Address Line One	11400 S.E. 6th Street
Entity Address, Address Line Two	Suite 125
Entity Address, City or Town	Bellevue
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	98004
City Area Code	425
Local Phone Number	462-1515
Title of 12(b) Security	Common Stock, par value $0.000001 per share
Trading Symbol	SVV
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		161,794,013
Entity Central Index Key	0001883313
Current Fiscal Year End Date	--12-30
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false