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OPERATING SEGMENTS AND GEOGRAPHIC INFORMATION - Assets And Liabilities Employed By Segment (Details) - CAD ($) $ in Millions | Mar. 31, 2021 | Mar. 31, 2020
--- | --- | ---
Disclosure of operating segments [line items] |  |
Assets | $ 8,748.4 | $ 8,483.6
Liabilities | 5,535.6 | 5,905.3
Operating segments | Civil Aviation Training Solutions |  |
Disclosure of operating segments [line items] |  |
Assets | 4,847.5 | 5,089.5
Liabilities | 1,039.4 | 1,219.9
Operating segments | Defence and Security |  |
Disclosure of operating segments [line items] |  |
Assets | 1,561.9 | 1,767.5
Liabilities | 540.5 | 613.5
Operating segments | Healthcare |  |
Disclosure of operating segments [line items] |  |
Assets | 250.2 | 253.9
Liabilities | 159.3 | 45.9
Unallocated amounts |  |
Disclosure of operating segments [line items] |  |
Assets | 2,088.8 | 1,372.7
Liabilities | $ 3,796.4 | $ 4,026.0

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