Income taxes - reconciliation to effective tax rate (Details) |
12 Months Ended | ||
|---|---|---|---|
Aug. 31, 2024 |
Aug. 31, 2023 |
Aug. 31, 2022 |
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| Income Tax Disclosure [Abstract] | |||
| Federal statutory rate | 21.00% | 21.00% | 21.00% |
| State income taxes, net of federal benefit | 1.80% | (5.80%) | 0.40% |
| Foreign income taxed at non-U.S. rates | 0.30% | 3.00% | (3.00%) |
| Non-taxable income | (0.30%) | (2.50%) | (2.70%) |
| Non-deductible expenses | 0.90% | 4.90% | 3.00% |
| Change in valuation allowance | 13.20% | (6.00%) | (9.00%) |
| Tax benefits from restructuring | 0.00% | (1.10%) | 0.00% |
| Uncertain tax positions | 0.40% | 0.50% | 1.30% |
| Non-controlling interest | 10.10% | 2.90% | 1.20% |
| Goodwill impairment | 7.20% | 0.00% | 0.00% |
| Tax credits | (0.50%) | (2.80%) | (1.00%) |
| Conversion of equity investment | 0.00% | 0.00% | (11.80%) |
| Change in tax basis in foreign assets | (2.20%) | 0.00% | 0.00% |
| Change in outside basis difference | (1.40%) | (1.90%) | 0.00% |
| Change in measurement of prior year tax positions | 0.00% | (3.50%) | 0.00% |
| Other | 0.30% | (1.00%) | (0.20%) |
| Effective income tax rate | 8.80% | (34.30%) | (0.80%) |
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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 Percentage 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 changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Percentage 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 applicable to statutory income tax expense (benefit) outside of the country of domicile. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Percentage 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 noncontrolling interest income (loss) exempt from income taxes. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage 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 expenses. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage 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 impairment loss. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Percentage 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 restructuring charges. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage 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 other adjustments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Percentage 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 revisions of previously reported income tax expense. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage 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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Percentage 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 income tax contingencies. Includes, 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 Percentage 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 Percentage 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 income (loss) exempt from income taxes. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Change In Outside Basis Difference, Percent No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Change In Tax Basis In Foreign Assets, Percent No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Conversion of Equity Investment No definition available.
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