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RESTRUCTURING ACTIVITIES AND ASSET IMPAIRMENTS (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 27, 2018 USD ($) | Jan. 27, 2018 USD ($) store | Oct. 28, 2017 USD ($) | Jul. 28, 2018 USD ($) | Jul. 29, 2017 USD ($)
Restructuring Costs Recorded in Fiscal 2016 |  |  |  |  |
Business Combination, Integration Related Costs Remainder Of Fiscal Year | $ 12,000 |  |  |  |
Restructuring charges | 412 |  | $ 0 |  |
Goodwill impairment |  | $ 7,900 |  |  |
Restructuring Costs [Abstract] |  |  |  |  |
Restructuring, acquisition, and integration related expenses | 68,004 |  | $ 0 |  |
Retail Divestitures And Adjustments To Cost-Structure [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges | 36,069 |  |  |  |
Restructuring Reserve Acquired | 6,193 |  |  |  |
Payments for Restructuring | 0 |  |  |  |
Restructuring Reserve | 42,262 |  |  |  |
Earth Origins Market [Member] |  |  |  |  |
Restructuring Costs Recorded in Fiscal 2016 |  |  |  |  |
Restructuring charges |  | $ 3,400 |  |  |
Restructuring Costs [Abstract] |  |  |  |  |
Restructuring, acquisition, and integration related expenses | 16,100 |  |  |  |
Gain (Loss) on Disposition of Business | 2,700 |  |  |  |
Number of Stores Closed | store |  | 3 |  |  |
Number of Stores | store |  | 12 |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges |  |  |  | $ 2,200 | $ 2,219
Payments for Restructuring | (2,026) |  |  |  |
Restructuring Reserve | 193 |  |  |  |
2017 Cost Saving and Efficiency Initiatives [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges |  |  |  |  | 6,864
Payments for Restructuring | (6,599) |  |  |  |
Restructuring Reserve | 265 |  |  |  |
Restructuring Reserve, Accrual Adjustment |  | $ 100 |  |  |
Employee Severance, Change-in-Control [Member] | Retail Divestitures And Adjustments To Cost-Structure [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges | 33,800 |  |  |  |
Employee Severance [Member] | Retail Divestitures And Adjustments To Cost-Structure [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges | 34,966 |  |  |  |
Restructuring Reserve Acquired | 6,193 |  |  |  |
Payments for Restructuring | 0 |  |  |  |
Restructuring Reserve | 41,159 |  |  |  |
Employee Severance [Member] | Earth Origins Market [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges | 819 |  |  |  |
Payments for Restructuring | (626) |  |  |  |
Restructuring Reserve | 193 |  |  |  |
Employee Severance [Member] | 2017 Cost Saving and Efficiency Initiatives [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges |  |  |  |  | 6,606
Payments for Restructuring | (6,341) |  |  |  |
Restructuring Reserve | 265 |  |  |  |
Tax Payments [Member] | Retail Divestitures And Adjustments To Cost-Structure [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges | 1,028 |  |  |  |
Restructuring Reserve Acquired | 0 |  |  |  |
Payments for Restructuring | 0 |  |  |  |
Restructuring Reserve | 1,028 |  |  |  |
Facility Closing [Member] | Earth Origins Market [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges |  |  |  |  | 1,400
Payments for Restructuring | (1,400) |  |  |  |
Restructuring Reserve | 0 |  |  |  |
Facility Closing [Member] | 2017 Cost Saving and Efficiency Initiatives [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges |  |  |  |  | $ 258
Payments for Restructuring | (258) |  |  |  |
Restructuring Reserve | 0 |  |  |  |
Other Restructuring [Member] | Retail Divestitures And Adjustments To Cost-Structure [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Restructuring Charges | 75 |  |  |  |
Restructuring Reserve Acquired | 0 |  |  |  |
Payments for Restructuring | 0 |  |  |  |
Restructuring Reserve | 75 |  |  |  |
SUPERVALU [Member] | Restructuring, Settlement and Impairment Provisions [Member] |  |  |  |  |
October 27, 2018 |  |  |  |  |
Business Combination, Acquisition Related Costs | 25,600 |  |  |  |
Business Combination, Integration Related Costs | $ 6,300 |  |  |  |

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