RESTRUCTURING AND OTHER CHARGES, NET (Details Textuals) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2010
Restructuring Cost and Reserve [Line Items]
Non-cash stock compensation	$ 31,864	$ 26,433	$ 24,616
Asset Impairment Charges and Gain Loss On Sale Of Assets	(9,988)		(537)
Benefit Protection [Member]
Restructuring Cost and Reserve [Line Items]
Gain on the sale of certain equity and debt investment securities held by benefits protection trust			774
Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash stock compensation	3,663	2,935	603
Europe [Member] | Other Charges Gains [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges and Gain Loss On Sale Of Assets	1,828
Satair [Member] | Other Charges Gains [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges and Gain Loss On Sale Of Assets	$ 9,196