Income Taxes - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2025 |
Aug. 31, 2024 |
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| Income Tax Disclosure [Abstract] | |||
| Gross loss carryforwards | $ 355.7 | ||
| Gross loss carryforwards subject to expiration | 55.6 | ||
| Tax credit carryforward, amount | 129.5 | $ 116.3 | |
| Tax credits subject to expiration | 131.5 | ||
| Amount of unrecognized tax benefits that would benefit effective tax rate | 138.4 | ||
| Interest and penalties expense (benefits) related to unrecognized tax benefits | 5.2 | 9.5 | $ (2.1) |
| Interest payable related to unrecognized tax benefits | $ 20.9 | $ 15.8 | |
| X | ||||||||||
- Definition Deferred Tax Assets, Tax Credit Carryforward, Subject To Expiration, Amount No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of interest expense accrued for an underpayment of income taxes. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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