RESTRUCTURING AND OTHER CHARGES, NET (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2013		Oct. 31, 2012
Restructuring Charges [Abstract]
Severance benefits and other employment contract obligations	$ 3,115	[1]	$ 3,279	[1]
Professional fees and other costs, net of receipt of insurance claim payments	1,243	[1]	443	[1]
Loss on sale and impairment of assets, net	0	[1]	43	[1]
Reversal of excess restructuring reserves	(344)	[1]	(190)	[1]
Restructuring Charges	4,014	[1]	3,575	[1]
Cash	4,014	[1]	3,532	[1]
Non-cash	0	[1]	43	[1]
Other Gains (Charges) [Abstract]
Severance benefits and other employment contract obligations	442	[2]	0	[2]
Professional fees and other costs, net of receipt of insurance claim payments	142	[2]	699	[2]
Loss on sale and impairment of assets, net	160	[2]	0	[2]
Environmental matters	4,440	[2]
Other Gains (Charges)	(5,184)	[2]	(699)	[2]
Cash	5,024	[2]	699	[2]
Non-cash	160	[2]	0	[2]
Restructuring Charges and Other Gains (Charges) [Abstract]
Severance benefits and other employment contract obligations	3,557		3,279
Professional fees and other costs, net of receipt of insurance claim payments	1,385		1,142
Loss on sale and impairment of assets, net	160		43
Restructuring And Other Gains Charges	(9,198)		(4,274)
Cash	9,038		4,231
Non-cash	$ 160		$ 43

[1] Restructuring:In fiscal year 2012, the Company announced a multi-year strategic cost reduction initiative (“structural cost improvement initiative”). This initiative impacts both segments as well as the Corporate Services Group. The goal of this initiative is to properly position the Company's cost structure globally to perform in the current economic environment without adversely impacting its growth or innovation potential. Key components of the structural cost improvement initiative include:•the strategic alignment of manufacturing, sales and R&D facilities to cost-effectively deliver high-quality products and superior service to the Company's customers worldwide,•creation of regional shared financial services centers for the handling of accounting transaction processing and other accounting functions,•reorganization of sales functions, to more cost- efficiently deliver superior service to the Company's customers globally, and•reductions in headcount across all functional areas, enabled by efficiencies gained through the Company's ERP systems as well as in order to align to economic conditions.Restructuring charges recorded in the three months ended October 31, 2013 and October 31, 2012 primarily reflect the expenses incurred in connection with the Company’s structural cost improvement initiative as discussed above.

[2] Other (Gains) / Charges:Environmental Matters: As discussed in Note 5, Contingencies and Commitments, in the three months ended October 31, 2013, the Company increased its previously established environmental reserve related to a matter in Pinellas Park, Florida.