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Financial Instruments - Schedule of Timing of Undiscounted Cash Outflows Relating to Financial Liabilities (Details) - CAD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of maturity analysis for non-derivative financial liabilities [line items] |  |
Bank indebtedness | $ 17.1 | $ 23.6
Trade and other payables | 1,018.7 | 842.4
Lease liabilities | 741.6 | 667.8
Long-term debt | 1,390.9 | 1,103.0
Other financial liabilities | 7.7 | 5.6
Total contractual obligations | 3,176.0 | 2,642.4
Less than 1 Year |  |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |  |
Bank indebtedness | 17.1 | 23.6
Trade and other payables | 1,018.7 | 842.4
Lease liabilities | 140.4 | 119.4
Long-term debt | 178.6 | 126.6
Other financial liabilities | 6.8 | 5.3
Total contractual obligations | 1,361.6 | 1,117.3
1 to 3 Years |  |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |  |
Bank indebtedness | 0.0 | 0.0
Trade and other payables | 0.0 | 0.0
Lease liabilities | 266.6 | 228.3
Long-term debt | 546.0 | 185.9
Other financial liabilities | 0.9 | 0.3
Total contractual obligations | 813.5 | 414.5
After 3 Years |  |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |  |
Bank indebtedness | 0.0 | 0.0
Trade and other payables | 0.0 | 0.0
Lease liabilities | 334.6 | 320.1
Long-term debt | 666.3 | 790.5
Other financial liabilities | 0.0 | 0.0
Total contractual obligations | $ 1,000.9 | $ 1,110.6

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- Definition The amount of contractual undiscounted cash flows in relation to lease liabilities before deducting finance charges. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 58 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_58&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph B11D -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_B11D_a&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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