Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions |
9 Months Ended | 12 Months Ended |
|---|---|---|
Dec. 31, 2025 |
Mar. 31, 2025 |
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| Unrecognized Tax Benefits [Roll Forward] | ||
| Beginning gross unrecognized tax benefit | $ 821.2 | $ 792.4 |
| Decreases related to settlements with tax authorities | (50.4) | (0.7) |
| Decreases related to statute of limitation expirations | (5.2) | (6.9) |
| Increases related to current year tax positions | 13.6 | 27.1 |
| Increases related to prior year tax positions | (84.3) | |
| (Decreases) related to prior year tax positions | 9.3 | |
| Ending gross unrecognized tax benefits | $ 694.9 | $ 821.2 |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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