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RETIREMENT PLANS (Details) - USD ($) | 12 Months Ended
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Jul. 28, 2018 | Jul. 29, 2017 | Jul. 30, 2016
Deferred Stock Plan | Minimum |  |  |
Retirement Plans |  |  |
Percentage of awards to be deferred by participants | 0.00% |  |
Deferred Stock Plan | Maximum |  |  |
Retirement Plans |  |  |
Percentage of awards to be deferred by participants | 100.00% |  |
Deferred Compensation Plan |  |  |
Retirement Plans |  |  |
Entity's contribution to Retirement Plan | $ 11,600,000 | $ 10,100,000 | $ 7,300,000
Minimum amount of awards to be deferred by participants | $ 1,000 |  |
Maximum percentage of base salary to be deferred by participants | 90.00% |  |
Maximum percentage of director fees, employee bonuses and commissions to be deferred by participants | 100.00% |  |
Deferred Compensation Plan | Maximum |  |  |
Retirement Plans |  |  |
Percentage of awards to be deferred by participants | 100.00% |  |
Multiemployer Plan, Individually Insignificant Multiemployer Plans [Member] |  |  |
Retirement Plans |  |  |
Multiemployer Plan, Contributions by Employer | $ 500,000 |  |
Multiemployer Plans, Withdrawal Obligation | $ 3,400,000 |  |
Deferred Compensation and Supplemental Retirement Plans [Member] |  |  |
Retirement Plans |  |  |
Discount rate for recording future obligations (as a percent) | 5.70% |  |
Cash surrender value of purchased whole-life insurance policies | $ 22,900,000 | $ 21,500,000 |
Future obligations under deferred compensation arrangement |  |  |
2019 | 1,147,000 |  |
2020 | 940,000 |  |
2021 | 785,000 |  |
2022 | 766,000 |  |
2023 | 721,000 |  |
2024 and thereafter | 2,349,000 |  |
Total future obligations including interest, under deferred compensation arrangement | $ 6,708,000 |  |

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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