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Summary of Total Cost and Employer Contributions (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 05, 2019 | Oct. 06, 2018 | Oct. 05, 2019 | Oct. 06, 2018
401(k) Retirement Savings Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total cost and employer contributions | $ 6,264 | $ 6,013 | $ 21,137 | $ 19,600

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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Details
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