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Financial Instruments - Additional Information (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2024
CAD ($)
day
Dec. 31, 2023
CAD ($)
day
Oct. 29, 2021
CAD ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Maximum amount of credit risk exposure $ 2,702.7 $ 2,407.3  
Number of internal target days of revenue in trade receivables | day 61 59  
Adjustments in net income resulting from 1% changes in interest rate $ 2.8 $ 3.0  
Additional revolving credit facilities amount     $ 600.0
Adjustments in net income resulting from 0.5% changes in interest rate 5.3 4.0  
Revolving credit facility      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Amount of revolving credit facility 800.0    
Unused capacity of the facility 539.8 718.1  
Credit Facilities      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Unused capacity of the facility 563.2 732.7  
Swap contract | PSUs and DSUs      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Gross carrying amount 8.2 7.0  
Gains on change in fair value of derivatives 1.1 7.4  
Cash flow hedges | RSUs      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Unrealized gain on interest rate swap 2.4 13.2  
Gains on cash flow hedges, net of tax 1.8 10.1  
Reclassification adjustments on cash flow hedges, before tax $ 5.5 8.1  
Cash flow hedges | Total Return Swap On Share-Based Compensation Units      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Interest rate swap agreement, amount 25.5    
Cash flow hedges | Swap contract | RSUs | Financial assets at fair value through other comprehensive income, category      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Hedging instrument, assets $ 10.7 $ 13.0