Intangible Assets (Tables)

6 Months Ended

Jan. 31, 2016

Finite-Lived Intangible Assets, Net [Abstract]

Intangible assets with finite lives

Intangible assets with finite lives as of January 31, 2016 and July 31, 2015 are as follows:

	January 31, 2016
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Technologies	13.0	$	47,370,000	40,245,000	$	7,125,000
Customer relationships	10.0	29,831,000		22,456,000	7,375,000
Trademarks and other	20.0	5,794,000		2,857,000	2,937,000
Total		$	82,995,000	65,558,000	$	17,437,000

	July 31, 2015
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Technologies	12.1	$	47,370,000	39,266,000	$	8,104,000
Customer relationships	10.0	29,831,000		20,981,000	8,850,000
Trademarks and other	20.0	5,794,000		2,739,000	3,055,000
Total		$	82,995,000	62,986,000	$	20,009,000