v3.25.2
Document and Entity Information Document
Aug. 06, 2025
Document Information [Line Items]  
Document Type 8-K
Document Creation Date Aug. 06, 2025
Document Period End Date Aug. 06, 2025
Amendment Flag false
Entity Registrant Name SunOpta Inc.
Entity Address, Address Line One 7078 Shady Oak Road
Entity Address, City or Town Eden Prairie
Entity Address, State or Province MN
Entity Address, Postal Zip Code 55344
Entity Incorporation, State Country Name Z4
City Area Code 952
Local Phone Number 820-2518
Entity File Number 001-34198
Entity Central Index Key 0000351834
Entity Emerging Growth Company false
Entity Tax Identification Number 00-0000000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
NASDAQ [Member] | Common Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common Shares
Trading Symbol STKL
Security Exchange Name NASDAQ
Toronto Stock Exchange [Member] | Common Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common Shares
Trading Symbol SOY