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Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)	9 Months Ended
	Apr. 30, 2013	Jul. 31, 2012
Goodwill And Other Intangible Assets [Abstract]
Intangible assets, net	$ 42,596,000	$ 46,200,000
Decrease of balance from other intangible assets	3,600,000
Amortization of existing intangible assets	4,100,000
Foreign exchange translation increase of intangible assets	$ 500,000

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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