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Goodwill and Intangible Assets - Impairment Analysis (Details) | 12 Months Ended
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Jul. 30, 2016 | Jul. 25, 2015 | Jul. 26, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Change In Fair Value, Percentage | 25.00% |  |
Percentage Change in Fair Value Input |  | 100.00% |
Fair Value Inputs, Discount Rate | 11.50% | 11.50% | 11.50%
Minimum |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Fair Value Inputs, Long-term Revenue Growth Rate | 2.00% | 1.50% | 1.50%
Maximum |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Fair Value Inputs, Long-term Revenue Growth Rate | 3.00% | 2.50% | 3.00%

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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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