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Finance Costs | 12 Months Ended
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Dec. 31, 2017
Borrowing costs [abstract] |
Finance cost | Finance costs: Finance costs are primarily comprised of interest on borrowings and finance lease obligations, amortization of deferred financing fees and accretion expense associated with site restoration costs. Finance costs were $95.0 million for the year ended December 31, 2017 (2016 - $90.1 million).

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- Definition The disclosure of finance cost. [Refer: Finance costs] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_10_e&doctype=Standard -URIDate 2017-03-09 + Details
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