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Financial Instruments - Additional Information (Details)
 12 Months Ended
Dec. 31, 2023
CAD ($)
day
Dec. 31, 2022
CAD ($)
day
Oct. 29, 2021
CAD ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Gains on cash flow hedges, net of tax $ 5,300,000 $ 3,000,000.0  
Maximum amount of credit risk exposure $ 2,407,300,000 $ 2,031,100,000  
Number of internal target days of revenue in trade receivables | day 59 62  
Adjustments in net income resulting from 1% changes in interest rate $ 3,000,000.0 $ 2,000,000.0  
Additional revolving credit facilities amount     $ 600,000,000
Adjustments in net income resulting from 0.5% changes in interest rate 4,000,000.0 5,400,000  
Total Return Swap On Share-Based Compensation Units      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Gains on change in fair value of derivatives 7,400,000    
PSUs      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Adjustments in net income resulting from 10% changes in interest rate 3,600,000 1,200,000  
Revolving credit facility      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Amount of revolving credit facility 800,000,000   $ 800,000,000
Unused capacity of the facility 718,100,000 223,600,000  
Credit Facilities      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Unused capacity of the facility $ 732,700,000 231,800,000  
Total Return Swap On Share-Based Compensation Units      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Unrealized loss on forward contract   1,200,000  
Interest Rate Swap      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Interest rate swap agreement, amount 160,000,000.0    
Reclassification adjustments on cash flow hedges, before tax $ 2,000,000.0    
Unrealized gain on interest rate swap   4,300,000  
Gains on cash flow hedges, net of tax   3,300,000  
Cash flow hedges | RSUs      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Reclassification adjustments on cash flow hedges, before tax 8,100,000 (3,000,000.0)  
Unrealized gain on interest rate swap 5,100,000 400,000  
Gains on cash flow hedges, net of tax $ 3,900,000 $ 300,000  
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 22,200,000