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OPERATING SEGMENTS AND GEOGRAPHIC INFORMATION - Assets And Liabilities Employed By Segment (Details) - CAD ($) $ in Millions | Mar. 31, 2018 | Apr. 01, 2017 | Mar. 31, 2017
--- | --- | --- | ---
Disclosure of operating segments [line items] |  |  |
Assets | $ 5,719.2 | $ 5,397.7 | $ 5,354.8
Liabilities | 3,352.6 | $ 3,385.4 | 3,273.8
Operating segments | Civil Aviation Training Solutions |  |  |
Disclosure of operating segments [line items] |  |  |
Assets | 2,988.2 |  | 2,821.1
Liabilities | 891.8 |  | 835.8
Operating segments | Defense and Security |  |  |
Disclosure of operating segments [line items] |  |  |
Assets | 1,437.9 |  | 1,363.6
Liabilities | 455.5 |  | 482.4
Operating segments | Healthcare |  |  |
Disclosure of operating segments [line items] |  |  |
Assets | 253.5 |  | 264.0
Liabilities | 42.0 |  | 39.7
Unallocated amounts |  |  |
Disclosure of operating segments [line items] |  |  |
Assets | 1,039.6 |  | 906.1
Liabilities | $ 1,963.3 |  | $ 1,915.9

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