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Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Sep. 30, 2017 | Sep. 30, 2016
--- | --- | ---
Deferred tax assets: |  |
Deferred revenue | $ 44,571 | $ 57,361
Employee compensation and benefits | 87,204 | 80,312
Intangible assets, computer software and intellectual property | 14,997 | 14,840
Tax credits, net capital and operating loss carryforwards | 155,478 | 168,641
Other | 78,114 | 68,073
Total deferred tax assets | 380,364 | 389,227
Valuation allowances | (94,573) | (96,870)
Total deferred tax assets, net | 285,791 | 292,357
Deferred tax liabilities: |  |
Anticipated withholdings on subsidiaries' earnings | (74,419) | (66,628)
Intangible assets, computer software and intellectual property | (136,238) | (146,848)
Other | (32,736) | (26,228)
Total deferred tax liabilities | (243,393) | (239,704)
Net deferred tax assets | $ 42,398 | $ 52,653

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