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Effect of Largest Customer in Sales (Detail) | 3 Months Ended | 9 Months Ended
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Oct. 05, 2019 | Oct. 06, 2018 | Oct. 05, 2019 | Oct. 06, 2018
Total year to date sales | Wal-Mart/Sam's Club | Customer Concentration Risk |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk percentage | 21.50% | 20.20% | 21.30% | 20.30%

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