ACCUMULATED OTHER COMPREHENSIVE INCOME - Components of AOCI (Details) - USD ($) $ in Thousands |
12 Months Ended | |
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Sep. 30, 2024 |
Sep. 30, 2023 |
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | $ 437,158 | $ 525,668 |
| Fair value of derivatives, tax | 316 | 3,058 |
| Pension liability, tax | (1,496) | (1,620) |
| Cumulative foreign currency translation | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | (174,623) | (190,196) |
| Cash Flow Hedges | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | 926 | 9,032 |
| Minimum pension liabilities | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | 4,955 | 6,760 |
| Accumulated Other Comprehensive (Loss) Income (net of tax) | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Accumulated other comprehensive income | $ (168,742) | $ (174,404) |
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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://fasb.org/us-gaap/role/ref/legacyRef
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