INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 26, 2019	Jan. 27, 2018	Jan. 26, 2019	Jan. 27, 2018	Jul. 28, 2018
Income Tax Contingency [Line Items]
Effective income tax rate excluding the impact of the adjustment of deferred tax expense		29.30%		33.50%
Effective Income Tax Rate Reconciliation, Percent	30.40%	0.90%	30.30%	15.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent					26.90%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability				$ (2,726)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent			11.50%		9.00%