Goodwill And Other Intangible Assets (Reconciliation Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Goodwill And Other Intangible Assets [Abstract]
Beginning balance, Gross Carrying Amount	$ 80,075	$ 85,439
Beginning balance, Accumulated Amortization	(33,875)	(31,943)
Beginning balance, Net Intangible Assets	46,200	53,496
Amortization expense, Accumulated Amortization	(5,503)	(5,778)
Amortization expense, Net Intangible Assets	(5,503)	(5,778)
Retirements, Gross Carrying Amount		(1,530)
Retirements, Accumulated Amortization		1,530
Foreign exchange translation, Gross Carrying Value	1,807	(3,834)
Foreign exchange translation, Accumulated Amortization	(1,197)	2,316
Foreign exchange translation, Net Intangible Assets	610	(1,518)
Ending balance, Gross Carrying Amount	81,882	80,075
Ending balance, Accumulated Amortization	(40,575)	(33,875)
Ending balance, Net Intangible Assets	$ 41,307	$ 46,200