EARNINGS PER SHARE EARNINGS PER SHARE - Earnings per Share (Details) - $ / shares shares in Thousands		3 Months Ended		6 Months Ended
		Feb. 01, 2020	Jan. 26, 2019	Feb. 01, 2020	Jan. 26, 2019
Reconciliation of the basic and diluted number of shares used in computing earnings per share:
Basic weighted average shares outstanding (shares)		53,523	50,815	53,368	50,699
Net effect of dilutive stock awards based upon the treasury stock method (in shares)		0	0	0	0
Diluted weighted average shares outstanding (in shares)		53,523	50,815	53,368	50,699
Basic per share data:
Continuing operations		$ (0.60)	$ (7.15)	$ (8.25)	$ (7.59)
Discontinued operations		0.03	0.42	0.49	0.46
Basic loss per share		(0.57)	(6.72)	(7.77)	(7.12)
Diluted per share data:
Continuing operations		(0.60)	(7.15)	(8.25)	(7.59)
Discontinued operations	[1]	0.03	0.42	0.48	0.46
Diluted loss per share		$ (0.57)	$ (6.72)	$ (7.77)	$ (7.12)
Anti-dilutive stock-based awards excluded from the calculation of diluted earnings per share		7,413	4,094	7,834	1,969
Shares attributable to dilutive effect of stock awards		244	107	153	353

[1] The computation of diluted earnings per share from discontinued operations is calculated using diluted weighted average shares outstanding, which includes the net effect of dilutive stock awards, of approximately 244 thousand shares and 107 thousand for the second quarters of fiscal 2020 and 2019, respectively, and 153 thousand and 353 thousand shares for fiscal 2020 and 2019 year-to-date, respectively.