XML 156 R138.htm IDEA: XBRL DOCUMENT v3.24.0.1
Segmented Information - Schedule of Operating Segments (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure of operating segments [line items]    
Gross revenue from external customers $ 6,479.6 $ 5,677.2
Less subconsultant and other direct expenses 1,413.4 1,220.0
Net revenue 5,066.2 4,457.2
Project margin 2,744.7 2,417.3
Canada    
Disclosure of operating segments [line items]    
Gross revenue from external customers 1,426.5 1,337.0
Canada | Operating Segments    
Disclosure of operating segments [line items]    
Gross revenue from external customers 1,426.5 1,337.0
Less subconsultant and other direct expenses 180.2 186.2
Net revenue 1,246.3 1,150.8
Project margin 667.4 611.0
United States    
Disclosure of operating segments [line items]    
Gross revenue from external customers 3,634.5 3,056.6
United States | Operating Segments    
Disclosure of operating segments [line items]    
Gross revenue from external customers 3,634.5 3,056.6
Less subconsultant and other direct expenses 950.4 790.0
Net revenue 2,684.1 2,266.6
Project margin 1,475.1 1,254.1
Foreign countries [member] | Operating Segments    
Disclosure of operating segments [line items]    
Gross revenue from external customers 1,418.6 1,283.6
Less subconsultant and other direct expenses 282.8 243.8
Net revenue 1,135.8 1,039.8
Project margin $ 602.2 $ 552.2