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v3.8.0.1

Income Taxes (Composition of Deferred Income Taxes) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Sep. 30, 2016
--- | --- | ---
Deferred tax assets: |  |
Defined benefit plans, other postretirement | $ 11,947 | $ 13,017
Foreign net operating loss carryforwards | 4,707 | 5,255
Inventory | 29,444 | 27,332
Deferred and stock-based compensation | 37,693 | 34,388
Defined benefit plans, pension | 1,148 | 8,955
Deferred revenue | 92,426 | 92,213
Other reserves | 10,850 | 13,968
Tax credits and incentives | 9,769 | 7,744
Other | 7,700 | 7,411
Valuation allowance | (3,714) | (3,317)
Total deferred tax assets, net of valuation allowance | 201,970 | 206,966
Deferred tax liabilities: |  |
Goodwill and intangibles - net | (103,781) | (99,030)
Property, plant and equipment | (109,229) | (88,986)
Other | (2,418) | (2,533)
Total deferred tax liabilities | (215,428) | (190,549)
Net deferred tax liabilities | $ (13,458) | $ 16,417

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