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Revenue - Additional Information (Detail) - CAD ($) $ in Millions |  | 12 Months Ended
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Jan. 01, 2018 | Dec. 31, 2018
Disclosure of performance obligations [abstract] |  |
Deferred revenue | $ 196.4 |
Explanation of how timing of satisfaction of performance obligations relates to typical timing of payment | Revenue recognized in 2018 from performance obligations satisfied (or partially satisfied) in prior years was less than 5% of the Company's gross revenue from continuing operations. |
Revenue from performance obligations unsatisfied (or partially unsatisfied) |  | $ 4,179.0
Expected revenue recognition as contracts |  | 77.00%
Explanation of expected revenue recognition as contracts |  | The Company expects to recognize approximately 77% of this revenue as contracts are completed over the next 18 months, with the remainder recognized thereafter.

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- Definition The explanation of how the timing of satisfaction of performance obligations relates to the typical timing of payment. [Refer: Performance obligations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 117 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_117&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The explanation of when the entity expects to recognise the transaction price allocated to the remaining performance obligations as revenue. [Refer: Revenue; Transaction price allocated to remaining performance obligations] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 120 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_120_b_ii&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of revenue that was included in the contract liability balance at the beginning of the period. [Refer: Contract liabilities; Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 116 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_116_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of the transaction price allocated to the performance obligations that are unsatisfied (or partially unsatisfied) as of the end of the reporting period. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties (for example, some sales taxes). [Refer: Performance obligations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 120 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_120_a&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Percentage of entity which expects to recognise transaction price allocated to remaining performance obligations as revenue + References No definition available. + Details
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