Goodwill and Intangible Assets (Tables)

3 Months Ended

Oct. 31, 2013

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Changes in Carrying Amount of Goodwill

Changes in the carrying amount of goodwill for the three months ended October 31, 2013, were as follows:

	IDS			WPS		Total
Balance as of July 31, 2013	$	517,030		$	100,206	$	617,236
Purchase accounting adjustments	(755		)	—		$	(755	)
Translation adjustments	3,956			3,728		$	7,684
Balance as of October 31, 2013	$	520,231		$	103,934	$	624,165

Other Intangible Assets

The net book value of these assets was as follows:

	October 31, 2013								July 31, 2013
	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	$	11,125	$	(9,737	)	$	1,388	5	$	11,053	$	(9,597	)	$	1,456
Trademarks and other	5	15,809		(9,207		)	6,602		5	15,289		(8,398		)	6,891
Customer relationships	8	264,430		(151,475		)	112,955		8	261,076		(144,620		)	116,456
Non-compete agreements and other	4	15,263		(14,634		)	629		4	14,942		(14,215		)	727
Unamortized other intangible assets:
Trademarks	N/A	31,238		—			31,238		N/A	31,321		—			31,321
Total		$	337,865	$	(185,053	)	$	152,812		$	333,681	$	(176,830	)	$	156,851