INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
| Operating Loss Carryforwards [Line Items] | |||
| Federal statutory tax rate | 21.00% | 21.00% | 24.50% |
| Income tax expense (benefit) | $ (18,685) | $ 806 | $ (9,118) |
| Foreign subsidiaries income (loss) before income taxes | (68,343) | 11,042 | $ 56,424 |
| Undistributed earnings of foreign subsidiaries | 383,423 | ||
| Valuation allowances | (22,527) | (15,352) | |
| Unrecognized tax benefits | 7,066 | ||
| Change in unrecognized tax benefits | 7,803 | ||
| Total penalties and interest accrued | 2,172 | $ 2,880 | |
| Capital Loss Carryforward | |||
| Operating Loss Carryforwards [Line Items] | |||
| Amount of tax credit carryforward | 20,119 | ||
| Foreign Tax Authority | |||
| Operating Loss Carryforwards [Line Items] | |||
| Amount of operating loss carryforwards | 101,994 | ||
| Domestic Tax Authority | |||
| Operating Loss Carryforwards [Line Items] | |||
| Amount of operating loss carryforwards | $ 2,189 | ||
| X | ||||||||||
- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. 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 The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount 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 Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- 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.
|
| X | ||||||||||
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount accrued 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/disclosureRef
|
| 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/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|