Financial Instruments - Schedule of Line of Credit Facilities (Details) $ in Thousands, $ in Thousands	Mar. 29, 2020 USD ($)	Mar. 29, 2020 CAD ($)	Dec. 29, 2019 USD ($)
Line of Credit Facility [Line Items]
Production Financing Loan and Other Loans	$ 184,977		$ 218,753
CANADA
Line of Credit Facility [Line Items]
Production Financing Loan and Other Loans		$ 73,485
U.S.
Line of Credit Facility [Line Items]
Production Financing Loan and Other Loans	$ 111,492