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Income Taxes - Summary of Income Tax Contingencies (Details) $ in Thousands | 6 Months Ended
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Jul. 28, 2019 USD ($)
Income Tax Disclosure [Abstract] |
Balance at January 27, 2019 | $ 18,293
Additions/(decreases) based on tax positions related to the current fiscal year | 6,614
Balance at July 28, 2019 | $ 24,907

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