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v3.20.2

Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Sep. 30, 2019
--- | --- | ---
Deferred tax assets: |  |
Defined benefit plans, other postretirement | $ 6,238 | $ 6,535
Foreign net operating loss carryforwards | 6,106 | 6,836
Inventory | 53,867 | 51,740
Stock-based and other compensation | 35,919 | 45,839
Defined benefit plans, pension | 5,624 | 11,399
Deferred revenue net of unbilled receivables | 39,990 | 32,310
Other reserves | 10,119 | 11,571
Tax credits and incentives | 14,340 | 13,580
Lease obligations | 5,764 |
Other | 9,223 | 5,611
Valuation allowance | (1,833) | (3,638)
Total deferred tax assets, net of valuation allowance | 185,357 | 181,783
Deferred tax liabilities: |  |
Goodwill and intangibles - net | (218,900) | (212,926)
Property, plant and equipment | (107,862) | (97,469)
Right of use assets | (4,837) |
Other | (2,673) | (4,589)
Total deferred tax liabilities | (334,272) | (314,984)
Net deferred tax liabilities | $ (148,915) | $ (133,201)

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