Intangible Assets (Tables)

12 Months Ended

Dec. 28, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

			December 28, 2019
	Cost	Accumulated amortization	Net book value
	$	$	$
Customer relationships	210,157	60,173	149,984
Patents, trademarks and other	1,919	1,894	25
	212,076	62,067	150,009

 

			December 29, 2018
	Cost	Accumulated amortization	Net book value
	$	$	$
Customer relationships	210,845	49,937	160,908
Patents, trademarks and other	1,919	1,852	67
	212,764	51,789	160,975

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	2020	2021	2022	2023	2024	Thereafter	Total
	$	$	$	$	$	$	$
Amortization expense	10,430	10,112	10,112	10,112	10,112	99,131	150,009