Restructuring (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jan. 31, 2011	Jan. 31, 2011
Restructuring (Textual) [Abstract]
Restructuring charges - (See Note J)	$ 2,134	$ 5,775
Americas [Member]
Restructuring (Textual) [Abstract]
Restructuring charges - (See Note J)		3,575
Europe [Member]
Restructuring (Textual) [Abstract]
Restructuring charges - (See Note J)		2,128
Asia-Pacific [Member]
Restructuring (Textual) [Abstract]
Restructuring charges - (See Note J)		72
Employee Related [Member]
Restructuring (Textual) [Abstract]
Restructuring charges - (See Note J)		3,878
Other facility closure related cost [Member]
Restructuring (Textual) [Abstract]
Restructuring charges - (See Note J)		183
Asset Write-offs [Member]
Restructuring (Textual) [Abstract]
Restructuring charges - (See Note J)		$ 1,714