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BUSINESS COMBINATIONS (Details) $ in Millions, $ in Millions |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Nov. 17, 2017 USD ($) training_centre | Dec. 31, 2017 | Mar. 31, 2018 CAD ($) | Mar. 31, 2017 CAD ($) | Nov. 17, 2017 CAD ($) | Sep. 30, 2017 CAD ($)
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Contingent consideration arising on business combinations |  |  | $ 11.0 | $ 0.0 |  |
Identifiable assets acquired |  |  |  |  | $ 114.9 |
Goodwill expected to be not deductible for tax purposes |  |  |  |  | 53.0 |
Philippine Academy for Aviation Training Inc |  |  |  |  |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Proportion of ownership interest in joint venture | 50.00% |  | 40.00% | 20.00% |  |
Portfolio Of Training Assets |  |  |  |  |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Cash transferred |  |  |  |  |  | $ 24.7
Property, plant and equipment |  |  |  |  |  | 24.7
Goodwill recognised as of acquisition date |  |  |  |  |  | 4.6
Non-current assets |  |  |  |  |  | 1.4
Non-current liabilities recognised as of acquisition date |  |  |  |  |  | $ 6.0
Asian Aviation Centre of Excellence Sdn. Bhd. |  |  |  |  |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Cash transferred | $ 90 |  |  |  | 114.8 |
Property, plant and equipment |  |  |  |  | 103.0 |
Non-current liabilities recognised as of acquisition date |  |  |  |  | $ 16.8 |
Percentage of voting equity interests acquired | 50.00% |  |  |  | 50.00% |
Contingent consideration arising on business combinations | $ 10 |  |  |  | $ 10.7 |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% |  |  |  |
Number of training centre | training_centre | 3 |  |  |  |  |
Identifiable assets acquired |  |  |  |  | 199.1 |
Fair value of acquired receivables |  |  |  |  | 14.0 |
Customer relationships |  |  |  |  |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Intangible assets other than goodwill |  |  |  |  | $ 61.6 |

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