Goodwill and Intangible Assets (Tables)

3 Months Ended

Oct. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

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

	IDS			WPS			Total
Balance as of July 31, 2017	$	391,864		$	45,833		$	437,697
Translation adjustments	(3,123		)	(870		)	(3,993		)
Balance as of October 31, 2017	$	388,741		$	44,963		$	433,704

Schedule of Other Intangible Assets

The net book value of these assets was as follows:

	October 31, 2017								July 31, 2017
	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	$	1,395	$	(591	)	$	804	5	$	1,358	$	(471	)	$	887
Trademarks and other	9	4,485		(4,271		)	214		9	4,528		(4,229		)	299
Customer relationships	8	60,349		(33,045		)	27,304		8	60,759		(31,909		)	28,850
Unamortized other intangible assets:
Trademarks	N/A	22,878		—			22,878		N/A	23,040		—			23,040
Total		$	89,107	$	(37,907	)	$	51,200		$	89,685	$	(36,609	)	$	53,076