ACCUMULATED OTHER COMPREHENSIVE INCOME - Components of AOCI (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Sep. 30, 2023 |
Sep. 30, 2022 |
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | $ 525,668 | $ 487,352 |
| Fair value of derivatives, tax | 1,015 | 2,762 |
| Pension liability, tax | (1,620) | (1,786) |
| Cumulative foreign currency translation | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | (190,196) | (203,310) |
| Cash Flow Hedges | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | 9,032 | 7,937 |
| Minimum pension liabilities | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | 6,760 | 5,182 |
| Accumulated Other Comprehensive (Loss) Income (net of tax) | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | $ (174,404) | $ (190,191) |
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- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of tax (expense) benefit for reclassification adjustment from accumulated other comprehensive (income) loss of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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/2003/role/exampleRef
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