Other information

12 Months Ended

Dec. 31, 2020

a) Supplemental cash flow information


Year ended December 31,	2020		2019
Cash paid during the year for:
Interest	$	18,526	$	20,039
Cash received during the year for:
Interest	151		72
Non-cash transactions:
Addition of property, plant and equipment by means of finance leases	27,882		28,107
Decrease to property, plant and equipment upon investment contribution to affiliates and joint ventures	(980)		—
Increase in assets held for sale, offset by property, plant and equipment	7,127		4,230
Non-cash working capital exclusions:
Net decrease in accounts receivable relating to other adjustments to investments in affiliates and joint ventures	(911)		—
Net decrease in accrued liabilities related to conversion of bonus compensation to deferred stock units	294		428
Net decrease in other accrued liabilities	—		582
Net increase in accrued liabilities related to the current portion of deferred stock units liability	(1,727)		—
Net increase in accrued liabilities related to dividend payable	(137)		(530)
Net decrease in long-term portion of payroll liabilities	—		536
Non-cash working capital transactions related to the reorganization of investments in affiliates and joint ventures:
Decrease in accounts receivable	—		(10,260)
Decrease in contract assets	—		(1,832)
Decrease in inventory	—		(4,321)
Decrease in prepaid expenses	—		(341)
Decrease in contract costs	—		(349)
Decrease in accounts payable	—		3,859
Decrease in accrued liabilities	—		1,615
Decrease in contract liabilities	—		152

b) Net change in non-cash working capital

The table below represents the cash (used in) provided by non-cash working capital:


Year ended December 31,	2020		2019
Operating activities:
Accounts receivable	$	29,462	$	5,393
Contract assets	12,159		(10,352)
Inventories	2,475		(12,579)
Contract costs	(953)		943
Prepaid expenses and deposits	(593)		(663)
Accounts payable	(46,832)		28,600
Accrued liabilities	(19)		1,034
Contract liabilities	1,489		(3,857)
	$	(2,812)	$	8,519