ACQUISITIONS - Schedule of Pro Forma Information (Details) - Supervalu - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 28, 2018	[1]	Apr. 27, 2019	[2]	Apr. 28, 2018	[3]
Business Acquisition [Line Items]
Net sales	$ 6,067,869		$ 18,096,796		$ 18,125,148
Net income (loss) from continuing operations	$ 73,853		$ (378,422)		$ 42,855
Basic net income (loss) from continuing operations per share	$ 1.46		$ (7.46)		$ 0.85
Diluted net income (loss) from continuing operations per share	$ 1.46		$ (7.46)		$ 0.84

[1] Includes 13 weeks of pro forma Supervalu results for the period ended April 28, 2018.

[2] Includes 12 weeks of pro forma Supervalu results for the period ended September 8, 2018.

[3] Includes 39 weeks of pro forma Supervalu results for the period ended April 28, 2018 and 19 weeks of pro forma Associated Grocers of Florida, Inc. results, which was acquired by Supervalu on December 8, 2017.