v3.25.4

Commitments and Contingencies (Narrative) (Details) kr in Millions, $ in Millions | 9 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2025 SEK (kr) | Dec. 31, 2025 USD ($) | Dec. 31, 2025 USD ($) | Mar. 31, 2025 USD ($)
Other Commitments [Line Items] |  |  |  |
Obligations to mining equipment |  |  | $ 109.4 | $ 227.8
Input tax recovery obligations related to Swedish Tax Authority | kr 729.6 | $ 79.2 |  |
Payment called by Swedish Tax Agency | kr 84.0 |  | $ 9.4 |

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