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L3HARRIS' MILITARY TRAINING BUSINESS - Narrative (Details) $ / shares in Units, $ in Millions, $ in Millions |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 04, 2021 CAD ($) $ / shares shares | Mar. 12, 2021 CAD ($) | Mar. 31, 2021 CAD ($) | Mar. 31, 2020 CAD ($) | Dec. 31, 2021 USD ($) | Mar. 31, 2021 USD ($)
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Number of subscription receipts issued | shares | 22,400,000 |  |  |  |  |
Price per subscription receipt | $ / shares | $ 31.25 |  |  |  |  |
Aggregate gross proceeds | $ 700.0 |  | $ 700.0 |  |  |
Commitment fee | 4.00% |  |  |  |  |
Accrued commitment fee | $ 14.0 |  | 14.0 |  |  |
Income tax recovery | $ 3.7 |  |  |  |  |
Contingent consideration arising on business combinations |  |  | 11.2 | $ 0.0 |  |
Share issue related cost |  | $ 42.3 |  |  |  |
Share issue related cost, income tax recovery |  | $ 11.2 |  |  |  |
Change in fair value of financial instruments, loss |  |  | (140.4) | $ 71.0 |  |
Other Issuance Related Costs, Recorded As A Deduction From Equity |  |  | 3.0 |  |  |
Other Issuance Related Costs, Recorded As A Deduction From Equity, Income Tax Recovery |  |  | 0.8 |  |  |
L3Harris' Military Training business |  |  |  |  |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Number of common shares issued upon conversion of subscription receipts | 1 |  |  |  |  |
Contingent consideration arising on business combinations |  |  | 14.0 |  |  |
Change in fair value of financial instruments, loss |  |  | $ 7.7 |  |  |
L3Harris' Military Training business | Forecast |  |  |  |  |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Cash consideration |  |  |  |  | $ 1,050 |
L3Harris' Military Training business | Currency risk |  |  |  |  |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |  |  |  |  |
Notional amount |  |  |  |  |  | $ 800

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