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Stock-Based Awards - Tax Benefit Recognized (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jul. 25, 2020 | Jul. 27, 2019 | Jul. 25, 2020 | Jul. 27, 2019
Share-based Payment Arrangement [Abstract] |  |  |  |
Net tax (deficiency) benefit | $ 700 | $ 700 | $ 200 | $ (600)
Stock-based compensation |  |  | 6,694 | 5,756
Stock-based compensation | 4,373 | 2,277 | 6,694 | 5,756
Income tax effect of stock-based compensation | $ 1,089 | $ 561 | $ 1,663 | $ 1,429

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- Definition Amount of tax benefit from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116856206&loc=SL79508275-113901 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders. + References No definition available. + Details
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