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Income Tax Expense - Tax Effects Of Temporary Differences That Give Rise To Significant Portions Of The Deferred Tax Assets And Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Deferred tax assets: |  |
Inventories | $ 5,457 | $ 4,990
Pension and other postretirement benefits | 658 | 664
Capitalized research and development expenditures | 4,114 | 0
Lease liabilities | 9,822 | 7,073
Net operating and capital loss carryforwards-domestic | 553 | 575
Net operating loss carry forward - foreign | 3,714 | 3,396
Other compensation-related costs and other cost accruals | 8,691 | 9,093
State credit carryforward | 2,249 | 1,676
Foreign credit carryforward |  | 203
Total deferred tax assets | 35,258 | 27,670
Deferred tax liabilities: |  |
ROU assets | (9,822) | (7,073)
Goodwill | (13,313) | (11,691)
Acquisition intangible assets | (61,187) | (62,051)
Depreciation, software amortization | (21,772) | (24,503)
Net deferred tax liabilities before valuation allowance | (70,836) | (77,648)
Less valuation allowance | (1,772) | (1,208)
Net deferred tax liabilities | $ (72,608) | $ (78,856)

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