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SHARE CAPITAL - Narrative (Details) $ / shares in Units, $ / shares in Units, $ in Thousands, $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Apr. 12, 2025 CAD ($) shares | May 30, 2023 CAD ($) $ / shares shares | May 30, 2023 USD ($) shares | Mar. 31, 2025 CAD ($) shares | Mar. 31, 2024 CAD ($) shares | May 30, 2023 USD ($) $ / shares
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Shares available for purchase for cancellation (in shares) |  |  |  | 8,259,180 |  |
Repurchase of common shares (in shares) |  |  |  |  | 300 |
Payments to acquire or redeem entity's shares | $ |  |  |  | $ 44,983 | $ 14 |
Transaction costs | $ |  |  |  | $ 900 |  |
Number of shares issued (in shares) |  | 6,900,000 | 6,900,000 |  |  |
Share price (in dollars per share) | (per share) |  | $ 55.04 |  |  |  | $ 41
Proceeds from U.S. initial public offering, net of issuance fees |  | $ 379,797 | $ 282,900 |  |  |
Payments for share issue costs |  | 17,725 | $ 13,203 |  |  |
Deferred tax |  | $ 4,260 |  |  |  | $ 3,173
Recently Announced NCIB Program |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Repurchase of common shares (in shares) |  |  |  | 0 |  |
Previous NCIB Program |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Repurchase of common shares (in shares) |  |  |  | 1,020,887 |  |
Payments to acquire or redeem entity's shares | $ |  |  |  | $ 44,983 |  |
Major ordinary share transactions |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Repurchase of common shares (in shares) | 308,758 |  |  |  |  |
Payments to acquire or redeem entity's shares | $ | $ 10,000 |  |  |  |  |

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