Goodwill and Intangible Assets (Tables)

9 Months Ended

Apr. 30, 2015

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Changes in Carrying Amount of Goodwill

Changes in the carrying amount of goodwill for the nine months ended April 30, 2015, were as follows:

	IDS			WPS			Total
Balance as of July 31, 2014	$	412,289		$	102,715		$	515,004
Translation adjustments	(24,627		)	(12,342		)	$	(36,969	)
Balance as of April 30, 2015	$	387,662		$	90,373		$	478,035

Other Intangible Assets

The net book value of these assets was as follows:

	April 30, 2015								July 31, 2014
	Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Amortized other intangible assets:
Patents	5	$	11,889	$	(10,503	)	$	1,386	5	$	11,656	$	(10,160	)	$	1,496
Trademarks and other	5	14,492		(11,938		)	2,554		5	15,366		(10,706		)	4,660
Customer relationships	7	138,486		(92,575		)	45,911		7	168,525		(114,363		)	54,162
Non-compete agreements and other	4	9,383		(9,313		)	70		4	10,089		(9,622		)	467
Unamortized other intangible assets:
Trademarks	N/A	28,843		—			28,843		N/A	30,229		—			30,229
Total		$	203,093	$	(124,329	)	$	78,764		$	235,865	$	(144,851	)	$	91,014