Supplementary cash flow information

12 Months Ended

Dec. 31, 2018

Statements [Line Items]

Supplementary cash flow information [text block]

30. Supplementary cash flow information

(a) Change in non-cash working capital:

		Year ended December 31,
		2018			2017
Change in:
Trade and other receivables	$	16,198		$	(8,979	)
Other financial assets/liabilities		(17,290	)		6,620
Inventories		(32	)		(18,690	)
Prepaid expenses		(38	)		(4,619	)
Trade and other payables		(19,608	)		(6,336	)
Change in taxes payable/receivable, net		7,881			39,326
Provisions and other liabilities		(1,030	)		1,693
	$	(13,919	)	$	9,015

(b)	Non-cash transactions:
	During the year ended December 31, 2018, the Group entered into the following non-cash investing and financing activities which are not reflected in the consolidated statements of cash flows:
	-	Remeasurements of the Group's decommissioning and restoration liabilities for the twelve months ended December 31, 2018 led to a net increase in related property, plant and equipment assets of $8,998 (year ended December 31, 2017 - $10,661) mainly as a result of increased mine activity and the resulting higher disturbance.
	-	Property, plant and equipment included $10,588 of net additions related to capital additions under finance lease (year ended December 31, 2017- $3,234).
	-	In 2017, the Peru business unit completed the sale of some heavy mobile equipment and then executed a finance lease to leaseback that same equipment. The transaction resulted in cash proceeds of $67,275. Given the classification of the leaseback as a finance lease, there was no change in the carrying value of the heavy mobile equipment and no impacts to the statements of income.