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Intangible Assets (Tables)

9 Months Ended

Apr. 30, 2012

Intangible Assets [Abstract]

Intangible assets with finite lives

	April 30, 2012
	Weighted Average Amortization Period		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Technologies	11.7		$     47,694,000		29,535,000		$   18,159,000
Customer relationships	10.0		29,931,000		11,494,000		18,437,000
Trademarks and other	19.8		6,044,000		2,207,000		3,837,000
Total			$     83,669,000		43,236,000		$   40,433,000

	July 31, 2011
	Weighted Average Amortization Period		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Technologies	10.2		$     47,694,000		27,000,000		$   20,694,000
Customer relationships	10.0		29,931,000		9,281,000		20,650,000
Trademarks and other	18.6		6,044,000		1,918,000		4,126,000
Total			$     83,669,000		38,199,000		$     45,470,000

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- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275

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