Intangible Assets (Tables)

12 Months Ended

Jul. 31, 2014

Finite-Lived Intangible Assets, Net [Abstract]

Intangible assets with finite lives

Intangible assets with finite lives as of July 31, 2014 and 2013 are as follows:

	July 31, 2014
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Technologies	11.8	$	47,370,000	36,240,000	$	11,130,000
Customer relationships	10.0	29,831,000		18,031,000	11,800,000
Trademarks and other	20.0	5,794,000		2,504,000	3,290,000
Total		$	82,995,000	56,775,000	$	26,220,000

	July 31, 2013
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Technologies	11.7	$	47,494,000	33,264,000	$	14,230,000
Customer relationships	10.0	29,831,000		15,081,000	14,750,000
Trademarks and other	20.0	5,944,000		2,419,000	3,525,000
Total		$	83,269,000	50,764,000	$	32,505,000