v3.25.2
Cover - shares
 6 Months Ended
Jun. 28, 2025
Jul. 28, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 28, 2025  
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 Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   155,555,984
Entity Central Index Key 0001883313  
Current Fiscal Year End Date --01-03  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Amendment Flag false