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OPERATING SEGMENTS AND GEOGRAPHIC INFORMATION - Products and Services Information (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Disclosure of operating segments [line items] |  |
Revenue | $ 2,830.0 | $ 2,704.5
Simulation Products [Member] |  |
Disclosure of operating segments [line items] |  |
Revenue | 1,281.7 | 1,208.7
Training and Services [Member] |  |
Disclosure of operating segments [line items] |  |
Revenue | $ 1,548.3 | $ 1,495.8

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