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Capital Stock - Narrative (Details) - $ / shares | Sep. 30, 2024 | May 13, 2024 | Mar. 31, 2024 | Mar. 31, 2023
--- | --- | --- | --- | ---
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Common stock, shares issued (in shares) | 288,700,000 |  | 253,400,000 | 253,400,000
Common shares exceeds price per share (in dollars per share) | $ 16.05 |  |  |
SEAC Sponsor Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Common stock, shares issued (in shares) |  | 2,200,000 |  |
Sponsor Option Agreement |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Exercise price (in dollars per share) |  | $ 0.0001 |  |

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