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Goodwill and Intangible Assets - Narratives (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 27, 2018 | Jan. 25, 2020 | Jan. 26, 2019 | Jul. 29, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |  |  |  |
Percentage Change in Fair Value Input |  | 1.00% |  |
Change In Fair Value, Percentage |  | 25.00% |  |
Amortization of intangible assets | $ 12.1 | $ 21.2 | $ 22.6 | $ 24.8

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- Definition Change In Fair Value, Percentage + References No definition available. + Details
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- Definition Percentage Change in Fair Value Input + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + 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 (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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