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ACQUISITIONS - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Apr. 27, 2019 | Oct. 27, 2018 | Oct. 22, 2018 | Apr. 27, 2019 | Apr. 28, 2018 | Apr. 27, 2019 | Apr. 28, 2018 | Jul. 28, 2018
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill | $ 471,843 |  |  | $ 471,843 |  | $ 471,843 |  | $ 362,495
Common stock, par value (in dollars per share) | $ 0.01 |  |  | $ 0.01 |  | $ 0.01 |  | $ 0.01
Net sales |  |  |  | $ 3,240,000 |  | $ 6,940,000 |  |
Supervalu |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  | $ 347,485 |  |  |  |  |  |
Business Acquisition, Share Price |  |  | $ 32.50 |  |  |  |  |
Business Combination, Consideration Transferred | $ 2,292,241 | $ 2,292,467 | $ 2,300,000 |  |  |  |  |
Payments for business acquisitions |  |  | 1,300,000 |  |  |  |  |
Less: assumed equity award liabilities |  |  | $ 1,000,000 |  |  |  |  |
Net sales |  |  |  |  | $ 6,067,869 | $ 18,096,796 | $ 18,125,148 |
Supervalu |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Common stock, par value (in dollars per share) |  |  | $ 0.01 |  |  |  |  |
Discontinued Operations [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  | $ 0 |  |  |  |  |

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