Goodwill And Other Intangible Assets (Reconciliation Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2014
Goodwill [Line Items]
Beginning Balance	$ 166,406
Goodwill acquired	59,174
Foreign exchange translation	(3,706)
Ending Balance	221,874
Engine Products [Member]
Goodwill [Line Items]
Beginning Balance	72,373
Foreign exchange translation	(504)
Ending Balance	71,869
Industrial Products [Member]
Goodwill [Line Items]
Beginning Balance	94,033
Goodwill acquired	59,174
Foreign exchange translation	(3,202)
Ending Balance	$ 150,005