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INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021
--- | --- | ---
Deferred tax assets: |  |
Pension and postretirement benefits | $ 9,051 | $ 11,832
Accruals and reserves not currently deductible | 10,909 | 8,753
Income tax credit carryforward | 5,796 | 5,206
Operating and capital loss carryforwards | 54,875 | 51,438
Stock options | 7,103 | 4,944
Other | 50 | 1,320
Total deferred tax assets | 87,784 | 83,493
Valuation allowances | (27,552) | (28,619)
Net deferred tax assets | 60,232 | 54,874
Deferred tax liabilities: |  |
Depreciation | (27,317) | (23,224)
Unrealized gains and losses | (2,793) | (886)
Goodwill and intangible assets | (98,715) | (113,476)
Other | (20,386) | (11,215)
Total deferred tax liabilities | (149,211) | (148,801)
Net deferred tax liability | $ (88,979) | $ (93,927)

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