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Income Taxes - Additional Information (Detail) | 3 Months Ended | 6 Months Ended
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Jul. 13, 2019 | Jul. 14, 2018 | Jul. 13, 2019 | Jul. 14, 2018
Income Tax Disclosure [Abstract] |  |  |  |
Effective income tax rate | 30.30% | 22.70% | (72.50%) | 24.80%

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