INCOME TAXES - Reconciliation of Federal Statutory Tax Rate to Consolidated Effective Tax Rate (Details) |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2022 |
|
| Income Tax Disclosure [Abstract] | |||
| Federal statutory tax rate | 21.00% | 21.00% | 21.00% |
| Effect of state income taxes, net of federal deduction | 1.30% | 3.80% | 0.20% |
| Foreign statutory taxes compared to federal statutory rate | 19.60% | (0.70%) | 1.60% |
| Share-based compensation | (0.70%) | 3.60% | (1.10%) |
| Tax credits (net of withholding taxes) | 3.60% | (7.00%) | 1.20% |
| Goodwill write-down | (4.90%) | 0.00% | (11.20%) |
| Nontaxable income | 5.00% | (7.50%) | 0.80% |
| Nondeductible held-for-sale asset write-downs | (0.040) | 0 | 0 |
| Change in realizability of foreign deferred tax assets | (30.70%) | (9.50%) | (5.80%) |
| Other | 4.20% | 0.60% | (2.50%) |
| Effective tax rate | 14.40% | 4.30% | 4.20% |
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Goodwill Write-Down, Percent No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Nondeductible Held for Sale Asset Write-Downs No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Tax Credit (Net of Withholding Taxes), Percent No definition available.
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| 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 changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| 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 applicable to statutory income tax expense (benefit) outside of the country of domicile. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| 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 other adjustments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| 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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| 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 income (loss) exempt from income taxes. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|