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Long-Term Debt - Additional Information (Details)
$ in Millions, $ in Millions
 12 Months Ended
Oct. 29, 2021
CAD ($)
tranche
Dec. 31, 2021
CAD ($)
Dec. 31, 2020
CAD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2021
AUD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2020
AUD ($)
Oct. 08, 2020
CAD ($)
Disclosure of detailed information about borrowings [line items]                
Number of tranches | tranche 2              
Additional revolving credit facilities amount $ 600,000,000.0              
Credit facility average interest rate   2.15% 2.55%          
Letter of credit outstanding   $ 5,800,000 $ 8,800,000          
Letter of credit issued and outstanding in addition   76,500,000 66,200,000          
Expire before 2022                
Disclosure of detailed information about borrowings [line items]                
Letter of credit issued and outstanding in addition   63,700,000 53,800,000          
Open-ended terms                
Disclosure of detailed information about borrowings [line items]                
Letter of credit issued and outstanding in addition   12,800,000 12,400,000          
Senior unsecured notes                
Disclosure of detailed information about borrowings [line items]                
Notional amount               $ 300,000,000.0
Borrowings, interest rate               2.048%
Revolving credit facility                
Disclosure of detailed information about borrowings [line items]                
Revolving credit facilities amount 800,000,000.0       $ 800.0      
Amount available under the facility   243,700,000 786,500,000          
Revolving credit facility | Canadian Dollars                
Disclosure of detailed information about borrowings [line items]                
Payable amount   403,000,000.0 0          
Revolving credit facility | US Dollars                
Disclosure of detailed information about borrowings [line items]                
Payable amount   140,300,000   $ 111.0   $ 0.0    
Term loan                
Disclosure of detailed information about borrowings [line items]                
Revolving credit facilities amount 310,000,000.0              
Term Loan Tranche A | Canadian Dollars                
Disclosure of detailed information about borrowings [line items]                
Revolving credit facility payable 150,000,000.0              
Term Loan Tranche B | Canadian Dollars                
Disclosure of detailed information about borrowings [line items]                
Revolving credit facility payable $ 160,000,000.0              
Letter of credit                
Disclosure of detailed information about borrowings [line items]                
Revolving credit facilities amount   100,000,000.0            
Notes payable                
Disclosure of detailed information about borrowings [line items]                
Aggregate maturity value of notes   65,300,000 69,800,000          
Notes payable | Canadian Dollars                
Disclosure of detailed information about borrowings [line items]                
Aggregate maturity value of notes   3,200,000 8,500,000          
Notes payable | US Dollars                
Disclosure of detailed information about borrowings [line items]                
Carrying amount of notes payable   2,700,000 5,700,000 $ 2.1   $ 4.5    
Notes payable | Australian Dollar                
Disclosure of detailed information about borrowings [line items]                
Carrying amount of notes payable   55,400,000 38,400,000   $ 60.3   $ 39.2  
Notes payable | Other Foreign Currencies                
Disclosure of detailed information about borrowings [line items]                
Carrying amount of notes payable   $ 4,000,000.0 $ 17,200,000          
Notes payable | Weighted average                
Disclosure of detailed information about borrowings [line items]                
Borrowings, interest rate   1.50% 2.40% 1.50% 1.50% 2.40% 2.40%  
Software financing obligations                
Disclosure of detailed information about borrowings [line items]                
Borrowings, interest rate   4.69% 4.18% 4.69% 4.69% 4.18% 4.18%  
Software additions acquired through software financing obligations   $ 44,400,000 $ 400,000          
Surety facilities                
Disclosure of detailed information about borrowings [line items]                
Bonds issued under surety facilities   65,500,000 155,100,000 $ 51.8   $ 121.8    
Surety facilities expiring before September 2026                
Disclosure of detailed information about borrowings [line items]                
Bonds issued under surety facilities   $ 10,100,000 $ 12,000,000.0