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Segmented Information - Schedule of Gross Revenue by Services (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of products and services [line items] |  |
Gross revenue | $ 5,677.2 | $ 4,576.8
Infrastructure |  |
Disclosure of products and services [line items] |  |
Gross revenue | 1,597.6 | 1,266.2
Environmental Services |  |
Disclosure of products and services [line items] |  |
Gross revenue | 1,250.9 | 831.7
Water |  |
Disclosure of products and services [line items] |  |
Gross revenue | 1,137.2 | 994.8
Buildings |  |
Disclosure of products and services [line items] |  |
Gross revenue | 1,027.7 | 904.8
Energy & Resources |  |
Disclosure of products and services [line items] |  |
Gross revenue | $ 663.8 | $ 579.3

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- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2022-03-24 -Paragraph 114 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2022-en-r&anchor=para_114&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2022-03-24 -Paragraph 113 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2022-en-r&anchor=para_113_a&doctype=Standard -URIDate 2022-03-24 + Details
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