EARNINGS PER SHARE (Details) - $ / shares shares in Thousands	3 Months Ended								12 Months Ended
	Aug. 03, 2019	Apr. 27, 2019	Jan. 26, 2019	Oct. 27, 2018	Jul. 28, 2018	Apr. 28, 2018	Jan. 27, 2018	Oct. 28, 2017	Aug. 03, 2019	Jul. 28, 2018	Jul. 29, 2017
Earnings Per Share [Abstract]
Weighted average number of shares outstanding, basic (in shares)									51,245	50,530	50,570
Weighted average number diluted shares outstanding adjustment (in shares)									0	307	205
Weighted average number of shares outstanding, diluted (in shares)									51,537	50,837	50,775
Basic (loss) earnings per share:
Continuing operations (in dollars per share)	$ 0.02	$ 0.64	$ (7.15)	$ (0.42)	$ 0.65	$ 1.03	$ 1.00	$ 0.60	$ (6.84)	$ 3.28	$ 2.57
Discontinued operations (in dollars per share)									1.28	0.00	0.00
Basic (loss) income per share (in dollars per share)	0.36	1.12	(6.72)	(0.38)	0.65	1.03	1.00	0.60	(5.56)	3.28	2.57
Diluted (loss) earnings per share:
Continuing operations (in dollars per share)	0.02	0.64	(7.15)	(0.42)	0.64	1.02	0.99	0.60	(6.84)	3.26	2.56
Discontinued operations (in dollars per share)									1.27	0.00	0.00
Diluted (loss) income per share (in dollars per share)	$ 0.36	$ 1.12	$ (6.72)	$ (0.38)	$ 0.64	$ 1.02	$ 0.99	$ 0.60	$ (5.56)	$ 3.26	$ 2.56
Antidilutive securities excluded from computation of earnings per share, amount (in shares)									3,434	93	44
Incremental common shares attributable to dilutive effect of share-based payment arrangements (in shares)									292