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Intangible Assets (Tables)

9 Months Ended

12 Months Ended

Apr. 30, 2011

Jul. 31, 2010


	April 30, 2011
	Weighted Average Amortization Period	Gross Carrying Amount	Accumulated Amortization	Net Carrying Amount
Technologies	10.0	$ 47,694,000	25,883,000	$ 21,811,000
Customer relationships	10.0	29,931,000	8,524,000	21,407,000
Trademarks and other	17.5	6,044,000	1,765,000	4,279,000
Total		$ 83,669,000	36,172,000	$ 47,497,000


	July 31, 2010
	Weighted Average Amortization Period	Gross Carrying Amount	Accumulated Amortization	Net Carrying Amount
Technologies	10.6	$ 42,224,000	22,531,000	$ 19,693,000
Customer relationships	9.9	29,931,000	6,223,000	23,708,000
Trademarks and other	17.6	6,044,000	1,354,000	4,690,000
Total		$ 78,199,000	30,108,000	$ 48,091,000

- Definition

Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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