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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Issued Accounting Standards (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 28, 2018 | Jul. 29, 2017
Accounting Policies [Abstract] |  |
Reclassification due to the adoption of ASU 2018-02 | $ (1,594) | $ 0

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- Definition Amount of reclassification adjustment from accumulated other comprehensive income for stranded tax effects. + References No definition available. + Details
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