Goodwill and Intangible Assets (Tables)

3 Months Ended

Oct. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of goodwill for the three months ended October 31, 2018, were as follows:

	IDS			WPS			Total
Balance as of July 31, 2018	$	385,524		$	34,291		$	419,815
Translation adjustments	(3,569		)	(1,117		)	(4,686		)
Balance as of October 31, 2018	$	381,955		$	33,174		$	415,129

Schedule of Other Intangible Assets

The net book value of these assets was as follows:

	October 31, 2018								July 31, 2018
	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	$	1,448	$	(1,069	)	$	379	5	$	1,448	$	(942	)	$	506
Trademarks and other	9	4,416		(4,332		)	84		9	4,497		(4,395		)	102
Customer relationships	9	55,559		(34,418		)	21,141		9	55,999		(33,535		)	22,464
Unamortized other intangible assets:
Trademarks	N/A	19,429		—			19,429		N/A	19,516		—			19,516
Total		$	80,852	$	(39,819	)	$	41,033		$	81,460	$	(38,872	)	$	42,588