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Segmented Information (Tables)

12 Months Ended

Dec. 31, 2023

Operating Segments [Abstract]

Schedule of Operating Segments

Reportable segments

			For the year ended December 31, 2023
			Canada $			United States $			Global $									Consolidated $
Gross revenue from external customers			1,426.5			3,634.5			1,418.6									6,479.6
Less subconsultants and other direct expenses and net revenue inter-segment allocations			180.2			950.4			282.8									1,413.4
Total net revenue			1,246.3			2,684.1			1,135.8									5,066.2
Project margin			667.4			1,475.1			602.2									2,744.7

			For the year ended December 31, 2022
			Canada $			United States $			Global $									Consolidated $
Gross revenue from external customers			1,337.0			3,056.6			1,283.6									5,677.2
Less subconsultants and other direct expenses and net revenue inter-segment allocations.			186.2			790.0			243.8									1,220.0
Total net revenue			1,150.8			2,266.6			1,039.8									4,457.2
Project margin			611.0			1,254.1			552.2									2,417.3

Schedule of Non-Current Assets and Gross Revenue by Geographical Areas

The following tables disclose disaggregation of non-current assets by geographic area and revenue by geographic area and services:

Geographic information			Non-Current Assets						Gross Revenue
			December 31, 2023			December 31, 2022			For the year ended December 31,
									2023			2022
			$			$			$			$
Canada			606.7			618.4			1,426.5			1,337.0
United States			1,985.3			1,982.0			3,634.5			3,056.6
United Kingdom (revised)			205.4			202.2			411.6			348.1
Australia			398.2			421.2			453.3			459.3
Other global geographies (revised)			164.5			164.1			553.7			476.2
			3,360.1			3,387.9			6,479.6			5,677.2

Schedule of Gross Revenue by Services

Gross revenue by services			For the year ended December 31,
			2023			2022
			$			$
Infrastructure			1,723.7			1,597.6
Environmental Services			1,410.6			1,250.9
Water			1,368.9			1,137.2
Buildings			1,232.6			1,027.7
Energy & Resources			743.8			663.8
Total gross revenue from external customers			6,479.6			5,677.2

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