PENSION PLANS - Additional Information (Details)		12 Months Ended
	Dec. 23, 2019 USD ($)	Jul. 25, 2020 USD ($) defined_benefit_pension_plan	Jul. 27, 2019 USD ($)	Jul. 28, 2018 USD ($)
Compensation Related Costs [Abstract]
Number of defined benefit plans | defined_benefit_pension_plan		4
Number of defined benefit plans terminated | defined_benefit_pension_plan		1
Number of defined benefit plans frozen | defined_benefit_pension_plan		2
Number of defined benefit plans covering union members | defined_benefit_pension_plan		2
Number of defined benefit plans covering non-union members | defined_benefit_pension_plan		1
Expected net actuarial loss to be recognized		$ 600,000
Accumulated benefit obligations		$ 76,849,000	$ 69,932,000
Number of multi-employer pension plans | defined_benefit_pension_plan		3
Company contributions to other multi-employer benefit plans		$ 29,965,000	28,325,000
401(k) company contributions		1,765,000	1,390,000
Company contributions to union sponsored plans		713,000	755,000
Defined Benefit Plan Disclosure [Line Items]
Class A common stock held in plan		573,000	568,000
Benefit obligation		76,849,000	69,932,000	$ 69,553,000
Loss on settlement		1,604,000
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Loss on settlement		935,000	441,000
Village Super Market, Inc. Retail Clerks Employees’ Retirement Plan | Supplemental Employee Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Annuity contract	$ 1,302,000
Lump sum distributions related to the termination of retirement plan	$ 451,000
Benefit obligation		0
Non-cash pre-tax settlement charge		669,000
Village Super Market, Inc. Employees’ Retirement Plan | Supplemental Employee Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Amount pre-tax of defined benefit plan included in accumulated other comprehensive loss		10,823,000
Level 1
Defined Benefit Plan Disclosure [Line Items]
Class A common stock held in plan		$ 573,000	$ 568,000
Minimum | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		0.00%
Minimum | Fixed Income Funds
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		85.00%
Minimum | Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		0.00%
Maximum | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		15.00%
Maximum | Fixed Income Funds
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		100.00%
Maximum | Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage		10.00%