RESTRUCTURING AND OTHER CHARGES, NET (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended				12 Months Ended	9 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended			9 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended			9 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012 Restructuring Liabilty 2012 [Member]	Apr. 30, 2012 Restructuring Liabilty 2011 [Member]	Jul. 31, 2011 Restructuring Liabilty 2011 [Member]	Apr. 30, 2012 Restructuring Liabilty 2010 [Member]	Jul. 31, 2011 Restructuring Liabilty 2010 [Member]	Jul. 31, 2010 Restructuring Liabilty 2010 [Member]		Apr. 30, 2012 Restructuring Liabilty 2009 [Member]	Jul. 31, 2011 Restructuring Liabilty 2009 [Member]	Jul. 31, 2010 Restructuring Liabilty 2009 [Member]	Jul. 31, 2009 Restructuring Liabilty 2009 [Member]	Apr. 30, 2012 Severance [Member] Restructuring Liabilty 2012 [Member]	Apr. 30, 2012 Severance [Member] Restructuring Liabilty 2011 [Member]	Jul. 31, 2011 Severance [Member] Restructuring Liabilty 2011 [Member]	Apr. 30, 2012 Severance [Member] Restructuring Liabilty 2010 [Member]	Jul. 31, 2011 Severance [Member] Restructuring Liabilty 2010 [Member]	Jul. 31, 2010 Severance [Member] Restructuring Liabilty 2010 [Member]		Apr. 30, 2012 Severance [Member] Restructuring Liabilty 2009 [Member]	Jul. 31, 2011 Severance [Member] Restructuring Liabilty 2009 [Member]	Jul. 31, 2010 Severance [Member] Restructuring Liabilty 2009 [Member]	Jul. 31, 2009 Severance [Member] Restructuring Liabilty 2009 [Member]	Apr. 30, 2012 Other [Member] Restructuring Liabilty 2012 [Member]	Apr. 30, 2012 Other [Member] Restructuring Liabilty 2011 [Member]	Jul. 31, 2011 Other [Member] Restructuring Liabilty 2011 [Member]	Apr. 30, 2012 Other [Member] Restructuring Liabilty 2010 [Member]	Jul. 31, 2011 Other [Member] Restructuring Liabilty 2010 [Member]	Jul. 31, 2010 Other [Member] Restructuring Liabilty 2010 [Member]		Apr. 30, 2012 Other [Member] Restructuring Liabilty 2009 [Member]	Jul. 31, 2011 Other [Member] Restructuring Liabilty 2009 [Member]	Jul. 31, 2010 Other [Member] Restructuring Liabilty 2009 [Member]	Jul. 31, 2009 Other [Member] Restructuring Liabilty 2009 [Member]
Restructuring Cost and Reserve [Line Items]
Original charge					$ 32,376		$ 10,370			$ 11,615	[1]				$ 23,672	$ 29,255		$ 4,863			$ 6,034	[1]				$ 18,938	$ 3,121		$ 5,507			$ 5,581	[1]				$ 4,734
Utilized					(25,272)	(3,549)	(7,042)	(1,608)	(1,491)	(7,472)		(317)	(851)	(5,490)	(16,890)	(23,151)	(3,199)	(1,817)	(1,608)	(1,356)	(2,031)		(317)	(845)	(4,902)	(12,757)	(2,121)	(350)	(5,225)	0	(135)	(5,441)		0	(6)	(588)	(4,133)
Reversal of excess reserves	31	5	77	11								(46)	(6)	(143)									(46)	(6)	(143)									0	0	0
Translation					283	(119)	340	0	6	(8)		(48)	120	(113)	432	271	(119)	272	0	2	1		(48)	120	(86)	412	12	0	68	0	4	(9)		0	0	(27)	20
Balance					$ 7,387	$ 0	$ 3,668	$ 1,042	$ 2,650	$ 4,135		$ 320	$ 731	$ 1,468	$ 7,214	$ 6,375	$ 0	$ 3,318	$ 1,042	$ 2,650	$ 4,004		$ 320	$ 731	$ 1,462	$ 6,593	$ 1,012	$ 0	$ 350	$ 0	$ 0	$ 131		$ 0	$ 0	$ 6	$ 621

[1] Excludes stock-based compensation expense of $603