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Revenue (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 CAD ($) unit | Dec. 31, 2019 CAD ($)
Revenue from contracts with customers [Abstract] |  |
Number of specialized business operating units | unit | 5 |
Increase through business combinations, contract assets |  | $ 1.1
Increase through business combinations, deferred revenue |  | 4.6
Deferred revenue | $ 199.2 | $ 174.4
Percentage of gross revenue | 5.00% | 5.00%
Revenue from performance obligations unsatisfied (or partially unsatisfied) | $ 4,377.0 | $ 4,257.0
Expected revenue recognition as contracts are completed | 78.00% | 77.00%
Timing expected to recognize revenue as contracts are completed | 18 months |

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- Definition The increase in contract assets resulting from business combinations. [Refer: Business combinations [member]; Contract assets] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_118_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The increase in contract liabilities resulting from business combinations. [Refer: Business combinations [member]; Contract liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_118_a&doctype=Standard -URIDate 2020-01-01 + 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 2020-01-01 -Paragraph 34 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_34&doctype=Standard -URIDate 2020-01-01 + 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 from contracts with customers] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Paragraph 116 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_116_b&doctype=Standard -URIDate 2020-01-01 + 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 2020-01-01 -Paragraph 120 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_120_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Number of specialized business operating units + References No definition available. + Details
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- Definition Percentage that entity expects to recognise transaction price allocated to remaining performance obligations as revenue + References No definition available. + Details
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- Definition Revenue from contracts with customers + References No definition available. + Details
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- Definition Timing of satisfaction of performance obligations relates to typical timing of payment + References No definition available. + Details
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