Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 29, 2018

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

		Quarter ended		Three quarters ended
		September 29, 2018	September 30, 2017	September 29, 2018	September 30, 2017
		$	$	$	$
Changes in non-cash working capital:
	Accounts receivable	4,353	5,113	(2,608)	12,754
	Inventories	3,777	15,100	(31,177)	9,187
	Income tax recoverable/payable	(94)	(552)	2,113	(5,351)
	Prepaid expenses and other current assets	7,404	(6,695)	6,350	(16,241)
	Accounts payable and accrued liabilities	(8,367)	(30,455)	(2,336)	(23,760)
	Customer and other deposits	(3,409)	(517)	(4,113)	(1,908)
		3,664	(18,006)	(31,771)	(25,319)