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Income Taxes - Summary of Provision for Income Taxes and Effective Tax Rate from Continuing Operations (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Income Tax Disclosure [Abstract] |  |  |  |
Pretax income | $ 32,755 | $ 26,046 | $ 109,952 | $ 59,422
(Benefit from) provision for income taxes | $ (7,206) | $ 7,653 | $ 12,670 | $ 16,362
Effective rate | (22.00%) | 29.40% | 11.50% | 27.50%

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