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INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) | 12 Months Ended
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Jul. 25, 2020 | Jul. 27, 2019
Income Tax Disclosure [Abstract] |  |
Statutory federal income tax rate | 21.00% | 21.00%
State income taxes, net of federal tax benefit | 9.90% | 9.80%
Settlement of tax audits | 0.00% | (2.20%)
Federal net operating loss carryback | (7.90%) | 0.00%
Other | (1.60%) | (0.50%)
Effective income tax rate | 21.40% | 28.10%

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