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Income Taxes - Additional Information (Detail) | 3 Months Ended | 9 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Income Tax Disclosure [Abstract] |  |  |  |
Effective tax rates | 29.70% | (4.10%) | (117.10%) | 0.60%

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- References No definition available. + Details
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