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Business Acquisitions - Summary of Consideration of Business Combinations (Detail) - CAD CAD in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Disclosure of detailed information about business combination [abstract] |  |
Cash consideration (net of cash acquired) | CAD 13.3 |
Payments on notes payable from previous acquisitions | 66.4 |
Total net cash paid | CAD 79.7 | CAD 1,072.6

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- Definition The aggregate cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 39 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_39&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The portion of consideration paid or received, consisting of cash and cash equivalents, in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]; Cash and cash equivalents; Consideration paid (received)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 40 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_40_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition Payments on notes payable from previous acquisitions. + References No definition available. + Details
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