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Segmented Information - Additional Information (Detail) - Segment | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Disclosure Of Operating Segments [Abstract] |  |
Number of operating segments | 2 |
Percentage of corporations total revenue | 0.00% | 0.00%
Information about major customers | No one individual customer accounted for more than 10% of the Corporation’s total revenue. |

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- Definition Information about the entity's major customers and the extent of the entity's reliance on them. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2016-01-13 -Paragraph 34 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2016-03-30&anchor=para_34&doctype=Standard -URIDate 2016-03-31 + Details
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- Definition The percentage of the entity's revenue. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 8 -IssueDate 2016-01-13 -Paragraph 34 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2016-03-30&anchor=para_34&doctype=Standard -URIDate 2016-03-31 + Details
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