Commitments and Contingencies	9 Months Ended
Sep. 29, 2018
Commitments And Contingencies Disclosure [Abstract]
Commitments And Contingencies Disclosure [Text Block]	12. Commitments and Contingencies Employment Matter On April 19, 2013, a class-action complaint, in the case titled De Jesus, et al. v. Frozsun, Inc. d/b/a Frozsun Foods, was filed against Sunrise Growers, Inc. (“Sunrise”) (then named Frozsun, Inc.) in California Superior Court, Santa Barbara County seeking damages, equitable relief and reasonable attorneys’ fees for alleged wage and hour violations. This case includes claims for failure to pay all hours worked, failure to pay overtime wages, meal and rest period violations, waiting-time penalties, improper wage statements and unfair business practices. The putative class includes 10,611 non-exempt hourly employees from Sunrise’s production facilities in Santa Maria and Oxnard, California. The parties attended mediation on October 12, 2017 and reached a general agreement to resolve the matter on a class-wide basis for $5.0 million. After negotiating the remaining details of the settlement, the parties obtained preliminary approval of the class action settlement on May 14, 2018. Settlement class members had until August 20, 2018, to opt out or object to the settlement terms. A final fairness hearing with the Court was held on September 17, 2018 and the settlement was granted final approval. Full payment of the settlement amount was made to the third-party settlement administrator in October 2018. The settlement amount was recorded in accounts payable and accrued liabilities on the consolidated balance sheet as at September 29, 2018. The Company recovered the full amount paid under the settlement through insurance coverage and an escrow account established in connection with the Company’s acquisition of Sunrise. Product Recall On November 20, 2017, Treehouse Foods, Inc., several of its related entities, and its insurer filed a lawsuit against the Company in the Circuit Court of Cook County, Illinois titled Treehouse Foods, Inc. et al. v. SunOpta Grains and Food, Inc. The Company was served with the Summons and Complaint on January 24, 2018, and the plaintiffs filed an Amended Complaint on April 23, 2018 and a second Amended Complaint on October 12, 2018. The plaintiffs allege economic damages resulting from the Company’s 2016 voluntary recall of certain roasted sunflower kernel products due to the potential for Listeria monocytogenes contamination. The case includes claims for breach of contract, express and implied warranties and product guarantees, negligence, strict liability, and indemnity seeking $16.2 million in damages. There are no allegations of personal injury. The Company is vigorously defending itself against these claims. The Company cannot reasonably predict the outcome of this claim, nor can it estimate the amount of loss, or range of loss, if any, that may result from this claim. Other Claims In addition, various claims and potential claims arising in the normal course of business are pending against the Company. It is the opinion of management that these claims or potential claims are without merit and the amount of potential liability, if any, to the Company is not determinable. Management believes the final determination of these claims or potential claims will not materially affect the financial position or results of the Company.

Employment Matter

On April 19, 2013, a class-action complaint, in the case titled De Jesus, et al. v. Frozsun, Inc. d/b/a Frozsun Foods, was filed against Sunrise Growers, Inc. (“Sunrise”) (then named Frozsun, Inc.) in California Superior Court, Santa Barbara County seeking damages, equitable relief and reasonable attorneys’ fees for alleged wage and hour violations. This case includes claims for failure to pay all hours worked, failure to pay overtime wages, meal and rest period violations, waiting-time penalties, improper wage statements and unfair business practices. The putative class includes 10,611 non-exempt hourly employees from Sunrise’s production facilities in Santa Maria and Oxnard, California. The parties attended mediation on October 12, 2017 and reached a general agreement to resolve the matter on a class-wide basis for $5.0 million. After negotiating the remaining details of the settlement, the parties obtained preliminary approval of the class action settlement on May 14, 2018. Settlement class members had until August 20, 2018, to opt out or object to the settlement terms. A final fairness hearing with the Court was held on September 17, 2018 and the settlement was granted final approval. Full payment of the settlement amount was made to the third-party settlement administrator in October 2018. The settlement amount was recorded in accounts payable and accrued liabilities on the consolidated balance sheet as at September 29, 2018. The Company recovered the full amount paid under the settlement through insurance coverage and an escrow account established in connection with the Company’s acquisition of Sunrise.

Product Recall

On November 20, 2017, Treehouse Foods, Inc., several of its related entities, and its insurer filed a lawsuit against the Company in the Circuit Court of Cook County, Illinois titled Treehouse Foods, Inc. et al. v. SunOpta Grains and Food, Inc. The Company was served with the Summons and Complaint on January 24, 2018, and the plaintiffs filed an Amended Complaint on April 23, 2018 and a second Amended Complaint on October 12, 2018. The plaintiffs allege economic damages resulting from the Company’s 2016 voluntary recall of certain roasted sunflower kernel products due to the potential for Listeria monocytogenes contamination. The case includes claims for breach of contract, express and implied warranties and product guarantees, negligence, strict liability, and indemnity seeking $16.2 million in damages. There are no allegations of personal injury. The Company is vigorously defending itself against these claims. The Company cannot reasonably predict the outcome of this claim, nor can it estimate the amount of loss, or range of loss, if any, that may result from this claim.

Other Claims

In addition, various claims and potential claims arising in the normal course of business are pending against the Company. It is the opinion of management that these claims or potential claims are without merit and the amount of potential liability, if any, to the Company is not determinable. Management believes the final determination of these claims or potential claims will not materially affect the financial position or results of the Company.