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Income Taxes - Schedule of Income Taxes from Continuing Operations (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2017
Current provision (benefit): |  |  |
U.S. Federal | $ 1,355 | $ (890) | $ 2,125
U.S. State | 192 | 51 | (72)
International | 41 | 41 | 54
Total current provision (benefit) | 1,588 | (798) | 2,107
Deferred provision (benefit): |  |  |
U.S. Federal | (1,505) | (2,006) | 1,085
U.S. State | (117) | (271) | (85)
Total deferred (benefit) provision | (1,622) | (2,277) | 1,000
Income tax (benefit) provision | $ (34) | $ (3,075) | $ 3,107

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