Income Taxes (Details) - USD ($) $ in Millions |
9 Months Ended | |||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Mar. 31, 2026 |
Dec. 31, 2024 |
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| Income Tax Contingency [Line Items] | ||||
| Effective tax rate (as percent) | 12.60% | 20.60% | ||
| Tax at federal statutory rate (as percent) | 21.00% | 21.00% | ||
| Tax benefit related to deferred tax assets resulting from legal entity restructuring | $ 20.1 | |||
| Deferred tax asset recognized | $ 30.2 | |||
| Tax benefit related to income tax credits and incentives | 39.6 | 47.2 | ||
| Tax expense related to foreign residual income | 37.5 | 45.6 | ||
| Tax expense related to state income taxes | $ 19.6 | |||
| Deferred tax assets resulting from legal entity restructuring | $ 54.7 | $ 20.1 | ||
| Gross book-tax differences from non-U.S. subsidiaries | 1,100.0 | |||
| Research Tax Credit Carryforward | ||||
| Income Tax Contingency [Line Items] | ||||
| Tax benefit related to deferred tax assets resulting from legal entity restructuring | $ 54.7 | |||
| Valuation allowance | $ 34.4 | |||
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from restructuring reserve. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible restructuring charges. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to repatriation of foreign earnings. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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