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Segmented Information (Tables) | 12 Months Ended
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Dec. 31, 2017
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Schedule of Operating Segments | Reportable segments
|  | For the year ended December 31, 2017 |
|  | Consulting Services |  |  |  |  |  |  |  |  | Adjustments |  |  |  |
|  |  |  |  | United |  |  |  |  |  | Construction |  |  | Total |  |  | and |  |  |  |
|  | Canada |  |  | States |  |  | Global |  |  | Services |  |  | Segments |  |  | Eliminations |  |  | Consolidated |
|  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |
Total gross revenue |  |  | 1,221.9 |  |  |  | 2,254.0 |  |  |  | 664.7 |  |  |  | 1,126.2 |  |  |  | 5,266.8 |  |  |  | (126.7 | ) |  |  | 5,140.1 |
Less inter-segment revenue |  |  | 30.2 |  |  |  | 28.0 |  |  |  | 53.7 |  |  |  | 14.8 |  |  |  | 126.7 |  |  |  | (126.7 | ) |  |  | - |
Gross revenue from external customers |  |  | 1,191.7 |  |  |  | 2,226.0 |  |  |  | 611.0 |  |  |  | 1,111.4 |  |  |  | 5,140.1 |  |  |  | - |  |  |  | 5,140.1 |
Less subconsultants and other direct expenses |  |  | 164.1 |  |  |  | 511.3 |  |  |  | 179.5 |  |  |  | 867.9 |  |  |  | 1,722.8 |  |  |  | - |  |  |  | 1,722.8 |
Total net revenue |  |  | 1,027.6 |  |  |  | 1,714.7 |  |  |  | 431.5 |  |  |  | 243.5 |  |  |  | 3,417.3 |  |  |  | - |  |  |  | 3,417.3 |
Gross margin |  |  | 551.5 |  |  |  | 958.7 |  |  |  | 251.7 |  |  |  | 66.0 |  |  |  | 1,827.9 |  |  |  | - |  |  |  | 1,827.9 |
|  | For the year ended December 31, 2016 |
|  | Consulting Services |  |  |  |  |  |  |  |  | Adjustments |  |  |  |
|  |  |  |  |  |  |  |  |  |  | Construction |  |  | Total |  |  | and |  |  |  |
|  | Canada |  |  | United States |  |  | Global |  |  | Services |  |  | Segments |  |  | Eliminations |  |  | Consolidated |
|  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |
Total gross revenue |  |  | 1,200.3 |  |  |  | 2,078.5 |  |  |  | 495.8 |  |  |  | 656.9 |  |  |  | 4,431.5 |  |  |  | (131.4 | ) |  |  | 4,300.1 |
Less inter-segment revenue |  |  | 31.5 |  |  |  | 15.5 |  |  |  | 72.7 |  |  |  | 11.7 |  |  |  | 131.4 |  |  |  | (131.4 | ) |  |  | - |
Gross revenue from external customers |  |  | 1,168.8 |  |  |  | 2,063.0 |  |  |  | 423.1 |  |  |  | 645.2 |  |  |  | 4,300.1 |  |  |  | - |  |  |  | 4,300.1 |
Less subconsultants and other direct expenses |  |  | 148.2 |  |  |  | 467.1 |  |  |  | 112.9 |  |  |  | 473.5 |  |  |  | 1,201.7 |  |  |  | - |  |  |  | 1,201.7 |
Total net revenue |  |  | 1,020.6 |  |  |  | 1,595.9 |  |  |  | 310.2 |  |  |  | 171.7 |  |  |  | 3,098.4 |  |  |  | - |  |  |  | 3,098.4 |
Gross margin |  |  | 549.7 |  |  |  | 883.0 |  |  |  | 180.1 |  |  |  | 63.5 |  |  |  | 1,676.3 |  |  |  | - |  |  |  | 1,676.3 |
Schedule of Non-Current Assets and Gross Revenue by Geographical Areas |
Geographic information: Non-current assets |  | December 31 2017 $ |  |  | December 31 2016 $ |
Canada |  |  | 452.4 |  |  |  | 471.2 |
United States |  |  | 1,311.2 |  |  |  | 1,479.8 |
United Kingdom |  |  | 119.3 |  |  |  | 135.9 |
Other countries |  |  | 148.7 |  |  |  | 404.6 |
Total non-current assets |  |  | 2,031.6 |  |  |  | 2,491.5 |
Non-current assets in the table above consist of property and equipment, goodwill, and intangible assets. Geographic information is attributed to countries based on the location of the assets.
Geographic information: Gross revenue |  | For the year ended December 31 |
|  | 2017 $ |  |  | 2016 $ |
Canada |  |  | 1,202.3 |  |  |  | 1,168.8 |
United States |  |  | 2,923.2 |  |  |  | 2,468.2 |
United Kingdom |  |  | 533.0 |  |  |  | 318.2 |
Other countries |  |  | 481.6 |  |  |  | 344.9 |
Total gross revenue from external customers |  |  | 5,140.1 |  |  |  | 4,300.1 |
Schedule of Gross Revenue by Services |
Geographic information: Gross revenue |  | For the year ended December 31 |
|  | 2017 $ |  |  | 2016 $ |
Canada |  |  | 1,202.3 |  |  |  | 1,168.8 |
United States |  |  | 2,923.2 |  |  |  | 2,468.2 |
United Kingdom |  |  | 533.0 |  |  |  | 318.2 |
Other countries |  |  | 481.6 |  |  |  | 344.9 |
Total gross revenue from external customers |  |  | 5,140.1 |  |  |  | 4,300.1 |
Gross revenue is attributed to countries based on the location of the project. |
Gross revenue by services |  | For the year ended December 31 |
|  | 2017 $ |  |  | 2016 $ |
Consulting Services |  |  |  |  |  |  |  |
Buildings |  |  | 898.1 |  |  |  | 818.2 |
Energy & Resources |  |  | 479.2 |  |  |  | 418.5 |
Environmental Services |  |  | 683.8 |  |  |  | 636.5 |
Infrastructure |  |  | 1,090.4 |  |  |  | 1,059.7 |
Water |  |  | 877.2 |  |  |  | 722.0 |
Construction Services |  |  | 1,111.4 |  |  |  | 645.2 |
Total gross revenue from external customers |  |  | 5,140.1 |  |  |  | 4,300.1 |

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