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STOCK-BASED COMPENSATION - Narrative (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2025 CAD ($) shares $ / shares | Mar. 31, 2024 CAD ($) shares $ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Subscription rate | 10.00% |
Maximum employee subscription | $ | $ 10 |
Employer match rate | 20.00% |
Employer match rate, employee salary maximum percentage | 1.00% |
Employer match rate, employee salary maximum | $ | $ 2 |
Maximum term of options | 7 years |
Weighted average share price for share options in share-based payment arrangement exercised during period at date of exercise (in dollars per share) | $ / shares | $ 40.13 | $ 57.26
Common shares held in trust (in shares) | 1,057,455 | 725,290
Stock options |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Shares remaining for future grants (in shares) | 1,560,749 | 1,751,082
Stock options | 1995 Plan |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Shares available for purchase for cancellation (in shares) | 5,991,839 |
Maximum shares issuable to a single person, percent | 5.00% |
Vesting period | 4 years |
Stock options | 2006 Plan |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Shares available for purchase for cancellation (in shares) | 5,159,000 |
RSUs |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Vesting period | 3 months |
Number of other equity instruments granted in share-based payment arrangement (in shares) | 255,055 | 161,568
Liabilities from share-based payment transactions | $ | $ 9 | $ 13,875
Performance-based RSUs |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Vesting period | 3 months |
Number of other equity instruments granted in share-based payment arrangement (in shares) | 210,803 | 126,944
DSUs |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Number of other equity instruments granted in share-based payment arrangement (in shares) | 43,456 | 32,498
Liabilities from share-based payment transactions | $ | $ 17,031 | $ 19,661
Shares redeemed (in shares) | 0 | 0

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- Definition The amount of liabilities arising from share-based payment transactions. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Types of share-based payment arrangements [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 51 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_b_i&doctype=Standard -URIDate 2024-03-27 + Details
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