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RETIREMENT PLANS (Details) - USD ($)	12 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Aug. 02, 2014
Retirement Plans
Entity's contribution to Retirement Plan	$ 7,300,000	$ 6,400,000	$ 5,800,000
Deferred Compensation and Supplemental Retirement Plans
Retirement Plans
Discount rate for recording future obligations (as a percent)	5.70%
Cash surrender value of purchased whole-life insurance policies	$ 12,200,000	$ 11,500,000
Future obligations under deferred compensation arrangement
2014	1,248,000
2015	1,067,000
2016	1,147,000
2017	940,000
2018	785,000
2022 and thereafter	3,837,000
Total future obligations including interest, under deferred compensation arrangement	$ 9,024,000
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
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%

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Represents the minimum amount of awards to be deferred by participants during the year.

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The total amount of the benefits expected to be paid.

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Represents the maximum percentage of base salary to be deferred by participants during the year.

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Represents the maximum percentage of director fees, employee bonuses and commissions to be deferred by participants during the year.

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The interest rate used to adjust for the time value of money for the 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=58740216&loc=d3e1928-114920

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The amount of estimated future defined benefit annual plan participant benefits covered by insurance contracts issued by the employer or its related parties.

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-Publisher FASB
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Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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The amount of the cost recognized during the period for defined contribution plans.

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