INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Sep. 30, 2024 |
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| Deferred tax assets: | ||
| Pension and postretirement benefits | $ 5,953 | $ 6,405 |
| Accruals and reserves not currently deductible | 16,734 | 16,992 |
| Income tax credit carryforward | 5,671 | 5,563 |
| Operating and capital loss carryforwards | 91,119 | 83,234 |
| Stock options | 8,701 | 8,266 |
| Research and development capitalization | 16,557 | 18,299 |
| Operating lease liability | 13,369 | 15,833 |
| Interest carryforward | 15,257 | 10,796 |
| Other | 9,420 | 6,078 |
| Total deferred tax assets | 182,781 | 171,466 |
| Valuation allowances | (66,632) | (45,462) |
| Net deferred tax assets | 116,149 | 126,004 |
| Deferred tax liabilities: | ||
| Depreciation | (21,130) | (25,724) |
| Goodwill and intangible assets | (74,471) | (95,828) |
| Revenue recognized over time | (32,359) | (27,467) |
| Operating lease right-of-use assets | (12,949) | (15,282) |
| Investment in Propelis | (24,320) | 0 |
| Other | (452) | (843) |
| Total deferred tax liabilities | (165,681) | (165,144) |
| Net deferred tax liability | $ (49,532) | $ (39,140) |
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- Definition Deferred Tax Asset, Research and Development Capitalization No definition available.
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- Definition Deferred Tax Assets, Operating Lease Liabilities No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards and capital loss carryforwards. No definition available.
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- Definition The tax effect as of the balance sheet date of the amount of the estimated future tax effects arising from environmental reserves, which can only be deducted for tax purposes when losses pertaining to such reserves are actually incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. No definition available.
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- Definition Deferred Tax Liabilities, Operating Lease, Right Of Use Assets No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible interest carryforward. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- 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
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from investments (excludes investments in subsidiaries and equity method investments). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from tax deferred revenue or income classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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