Long-Term Debt - Schedule of Line of Credit Facilities (Details) $ in Thousands, $ in Thousands	Dec. 27, 2020 CAD ($)	Dec. 27, 2020 USD ($)	Dec. 29, 2019 USD ($)
Line of Credit Facility [Line Items]
Production financing loan and other loans		$ 170,877	$ 211,972
Canadian Facilities
Line of Credit Facility [Line Items]
Production financing loan and other loans	$ 71,127
U.S. Facilities
Line of Credit Facility [Line Items]
Production financing loan and other loans		99,750
Total
Line of Credit Facility [Line Items]
Production financing loan and other loans		$ 170,877