XML 47 R39.htm IDEA: XBRL DOCUMENT

Supplementary Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2019

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

Total cash, cash equivalents and restricted cash are as follows:



	June 30, 2019			December 31, 2018			June 30, 2018			December 31, 2017
	$			$			$			$
Cash and cash equivalents	235,199			424,169			454,933			445,452
Restricted cash – current	50,798			40,493			55,466			38,179
Restricted cash – non-current	36,886			40,977			34,627			68,543
	322,883			505,639			545,026			552,174