RESTRUCTURING, ACQUISITION AND INTEGRATION RELATED EXPENSES (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Jul. 28, 2018 USD ($) store	Jan. 27, 2018 store	Aug. 03, 2019 USD ($) lease store	Jul. 28, 2018 USD ($) store	Jul. 29, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Number of stores | store			17
Number of property leases with reserves terminated | lease			12
Restructuring costs | $			$ 153,539	$ 9,738	$ 6,864
Loss on disposition of assets | $	$ 2,700
Earth Origins Market
Restructuring Cost and Reserve [Line Items]
Number of stores closed | store		3
Number of stores | store	12			12
Restructuring costs | $				$ 9,700