DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Non-U.S. currency translation (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2022 |
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| Description Of Business And Summary Of Significant Accounting Policies [Line Items] | ||||
| Accumulated other comprehensive income (loss), foreign currency translation adjustment, net of tax | $ (6,569) | $ 10,137 | ||
| Accumulated other comprehensive income (loss) | 73,972 | 224,888 | $ 315,244 | $ 477,570 |
| Foreign currency translation adjustments | ||||
| Description Of Business And Summary Of Significant Accounting Policies [Line Items] | ||||
| Accumulated other comprehensive income (loss) | $ (45,155) | $ (38,586) |
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- Definition [Line Items] for Description Of Business And Summary Of Significant Accounting Policies [Table] No definition available.
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- Definition Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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