Goodwill And Other Intangible Assets (Reconciliation Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Goodwill And Other Intangible Assets [Abstract]
Gross Carrying Amount	$ 81,283	$ 81,882	$ 80,075
Accumulated Amortization	(45,238)	(40,575)	(33,875)
Net Intangible Assets	36,045	41,307	46,200
Amortization expense, Accumulated Amortization	(5,154)	(5,503)
Amortization expense, Net Intangible Assets	(5,154)	(5,503)
Retirements, Gross Carrying Amount	(775)
Retirements, Accumulated Amortization	600
Retirements, Net Intangible Assets	(175)
Foreign exchange translation, Gross Carrying Value	176	1,807
Foreign exchange translation, Accumulated Amortization	(109)	(1,197)
Foreign exchange translation, Net Intangible Assets	$ 67	$ 610