Income Taxes (Tables)

12 Months Ended

Dec. 28, 2019

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	December 28, 2019		December 29, 2018		December 30, 2017
	$		$		$
Earnings (loss) before income taxes	2,617		(114,521	)	(170,397	)
Canadian statutory rate	26.5%		26.5%		26.5%
Income tax provision (recovery) at statutory rate	694		(30,348	)	(45,155	)
Impact of changes in enacted tax rates	(441	)	1,976		(8,437	)
Foreign tax rate differential	126		2,562		(9,324	)
Impact of stock-based compensation and other non-    deductible expenses	1,975		2,019		1,590
Change in valuation allowance	774		(3,717	)	72
Goodwill impairment loss	—		22,239		30,475
Change in unrecognized tax benefits	—		—		(452	)
Other	93		(109	)	(4,598	)
Provision for (recovery of) income taxes	3,221		(5,378	)	(35,829	)

The components of earnings (loss) before income taxes are shown below:

	December 28, 2019		December 29, 2018		December 30, 2017
	$		$		$
Canada	(11,295	)	(13,408	)	(3,286	)
U.S.	9,167		(107,068	)	(178,033	)
Other	4,745		5,955		10,922
	2,617		(114,521	)	(170,397	)

The components of the provision for (recovery of) income taxes are shown below:
 

	December 28, 2019		December 29, 2018		December 30, 2017
	$		$		$
Current income tax provision (recovery):
Canada	(1,023	)	(1,334	)	(658	)
U.S.	588		(3,655	)	(10,346	)
Other	2,843		3,394		3,074
	2,408		(1,595	)	(7,930	)
Deferred income tax provision (recovery):
Canada	33		547		642
U.S.	731		(4,226	)	(28,606	)
Other	49		(104	)	65
	813		(3,783	)	(27,899	)
Provision for (recovery of) income taxes	3,221		(5,378	)	(35,829	)

Schedule of deferred tax assets and liabilities [Table Text Block]

	December 28, 2019		December 29, 2018
	$		$
Differences in property, plant and equipment and intangible assets	(54,541	)	(54,841	)
Capital and non-capital losses	26,540		25,169
Tax benefit of scientific research expenditures	1,506		2,004
Inventory basis differences	2,248		3,755
Interest expense limitation (163j)	19,118		20,025
Other accrued reserves	2,321		1,366
	(2,808	)	(2,522	)
Less: valuation allowance	6,219		5,445
Net deferred income tax liability	(9,027	)	(7,967	)

Schedule of deferred tax assets and liabilities by geographic segment [Table Text Block]

	December 28, 2019		December 29, 2018
	$		$
Canada	(223	)	(148	)
U.S.	(8,446	)	(7,147	)
Other	(358	)	(672	)
	(9,027	)	(7,967	)

Schedule Of Deferred Income Tax Valuation Allowance [Table Text Block]

	December 28, 2019	December 29, 2018
	$	$
Balance, beginning of year	5,445	9,162
Increase (decrease) in valuation allowance	774	(3,717	)
Balance, end of year	6,219	5,445