Goodwill and Intangible Assets (Tables)

6 Months Ended

Jan. 31, 2017

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Changes in Carrying Amount of Goodwill

Changes in the carrying amount of goodwill for the six months ended January 31, 2017, were as follows:

	IDS			WPS			Total
Balance as of July 31, 2016	$	384,529		$	45,342		$	429,871
Translation adjustments	(4,751		)	(263		)	(5,014		)
Realignment of businesses between segments	2,490			(2,490		)	—
Balance as of January 31, 2017	$	382,268		$	42,589		$	424,857

Other Intangible Assets

The net book value of these assets was as follows:

	January 31, 2017								July 31, 2016
	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	$	12,283	$	(11,278	)	$	1,005	5	$	12,252	$	(11,063	)	$	1,189
Trademarks and other	5	14,252		(13,720		)	532		5	14,359		(13,709		)	650
Customer relationships	7	134,209		(102,539		)	31,670		7	135,795		(100,830		)	34,965
Non-compete agreements and other	4	9,118		(9,118		)	—		4	9,153		(9,142		)	11
Unamortized other intangible assets:
Trademarks	N/A	22,773		—			22,773		N/A	22,991		—			22,991
Total		$	192,635	$	(136,655	)	$	55,980		$	194,550	$	(134,744	)	$	59,806