RESTRUCTURING ACTIVITIES AND ASSET IMPAIRMENTS (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2016	Jan. 30, 2016	May. 02, 2015	Apr. 30, 2016	May. 02, 2015
Restructuring Costs [Abstract]
Severance Costs				$ 3,443
Restructuring and asset impairment expenses	$ 0		$ 0	4,794	$ 803
Cash Payments
Severance Costs				3,443
Payments for Restructuring				(3,179)
Restructuring Cost Liability as of April 30, 2016
Restructuring Reserve	1,202			1,202
Lease termination, facility closing costs and operational transfer costs				938
Asset Impairment Charges		$ 400
2016 cost-saving measures
Restructuring Costs [Abstract]
Restructuring and asset impairment expenses				4,381
Employee Severance [Member]
Restructuring Cost Liability as of April 30, 2016
Restructuring Reserve	1,202			1,202
Other Restructuring [Member]
Restructuring Costs [Abstract]
Other Restructuring Costs				570
Cash Payments
Other Restructuring Costs				570
Restructuring Cost Liability as of April 30, 2016
Restructuring Reserve	0			0
Cash paid for restructuring [Member]
Restructuring Costs [Abstract]
Severance Costs				(2,241)
Other Restructuring Costs				(570)
Cash Payments
Severance Costs				(2,241)
Loss on Contract Termination				(368)
Other Restructuring Costs				(570)
Contract Termination [Member]
Cash Payments
Loss on Contract Termination				368
Restructuring Cost Liability as of April 30, 2016
Restructuring Reserve	$ 0			$ 0