Segment Reporting (Geographic Sales By Origination And Property, Plant And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2012	Oct. 31, 2011	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Segment Reporting Information [Line Items]
Net Sales	$ 632,594	$ 619,371	$ 596,036	$ 588,947	$ 656,833	$ 647,237	$ 580,883	$ 608,295	$ 2,436,948	$ 2,493,248	$ 2,294,029
Property, Plant & Equipment - Net	419,280				384,909				419,280	384,909	391,502
United States [Member]
Segment Reporting Information [Line Items]
Net Sales									1,010,934	1,064,474	941,218
Property, Plant & Equipment - Net	166,614				146,328				166,614	146,328	141,584
Europe [Member]
Segment Reporting Information [Line Items]
Net Sales									678,996	678,619	653,275
Property, Plant & Equipment - Net	123,710				114,266				123,710	114,266	131,739
Asia - Pacific [Member]
Segment Reporting Information [Line Items]
Net Sales									546,406	572,163	540,874
Property, Plant & Equipment - Net	75,206				80,200				75,206	80,200	81,035
Other [Member]
Segment Reporting Information [Line Items]
Net Sales									200,612	177,992	158,662
Property, Plant & Equipment - Net	$ 53,750				$ 44,115				$ 53,750	$ 44,115	$ 37,144