Intangible Assets and Goodwill (Tables)

9 Months Ended

Apr. 30, 2013

Intangible Assets and Goodwill

Schedule of intangible assets

	April 30, 2013
	Gross		Accumulated Amortization			Net
Intangible assets with finite lives:
Customer relationships	$	68,754,000	$	(24,748,000	)	$	44,006,000
Technology	21,054,000		(9,094,000		)	11,960,000
Brand names	12,758,000		(7,777,000		)	4,981,000
Non-compete agreements	3,359,000		(655,000		)	2,704,000
Patents and other registrations	1,650,000		(563,000		)	1,087,000
	107,575,000		(42,837,000		)	64,738,000
Trademarks and trade names	9,427,000		—			9,427,000
Total intangible assets	$	117,002,000	$	(42,837,000	)	$	74,165,000

	July 31, 2012
	Gross		Accumulated Amortization			Net
Intangible assets with finite lives:
Customer relationships	$	60,271,000	$	(20,421,000	)	$	39,850,000
Technology	20,797,000		(7,590,000		)	13,207,000
Brand names	11,945,000		(6,778,000		)	5,167,000
Non-compete agreements	3,147,000		(404,000		)	2,743,000
Patents and other registrations	1,372,000		(463,000		)	909,000
	97,532,000		(35,656,000		)	61,876,000
Trademarks and trade names	9,435,000		—			9,435,000
Total intangible assets	$	106,967,000	$	(35,656,000	)	$	71,311,000

Schedule of estimated annual amortization expense of intangible assets for the next five years

Three month period ending July 31, 2013	$	2,597,000
Fiscal 2014	10,099,000
Fiscal 2015	9,840,000
Fiscal 2016	6,600,000
Fiscal 2017	6,024,000
Fiscal 2018	5,747,000

Schedule of changes in goodwill

	Endoscopy		Water Purification and Filtration			Healthcare Disposables		Dialysis		All Other			Total Goodwill
Balance, July 31, 2011	$	9,648,000	$	52,074,000		$	55,864,000	$	8,133,000	$	9,051,000		$	134,770,000
Acquisitions	49,582,000		—			—		—		—			49,582,000
Foreign currency translation	—		(309,000		)	—		—		(388,000		)	(697,000		)
Balance, July 31, 2012	59,230,000		51,765,000			55,864,000		8,133,000		8,663,000			183,655,000
Acquisitions	—		597,000			23,977,000		—		—			24,574,000
Foreign currency translation	—		(24,000		)	—		—		(29,000		)	(53,000		)
Balance, April 30, 2013	$	59,230,000	$	52,338,000		$	79,841,000	$	8,133,000	$	8,634,000		$	208,176,000