Intangible Assets and Goodwill (Tables)

9 Months Ended

Apr. 30, 2015

Intangible Assets and Goodwill

Schedule of intangible assets

	April 30, 2015
			Accumulated
	Gross		Amortization			Net
Intangible assets with finite lives:
Customer relationships	$	97,660,000	$	(37,333,000	)	$	60,327,000
Technology	26,505,000		(11,852,000		)	14,653,000
Brand names	13,020,000		(10,498,000		)	2,522,000
Non-compete agreements	3,129,000		(936,000		)	2,193,000
Patents and other registrations	2,138,000		(754,000		)	1,384,000
	142,452,000		(61,373,000		)	81,079,000
Trademarks and trade names	8,350,000		—			8,350,000
Total intangible assets	$	150,802,000	$	(61,373,000	)	$	89,429,000
	July 31, 2014
			Accumulated
	Gross		Amortization			Net
Intangible assets with finite lives:
Customer relationships	$	83,145,000	$	(31,336,000	)	$	51,809,000
Technology	26,405,000		(11,444,000		)	14,961,000
Brand names	12,680,000		(9,431,000		)	3,249,000
Non-compete agreements	3,129,000		(754,000		)	2,375,000
Patents and other registrations	2,073,000		(792,000		)	1,281,000
	127,432,000		(53,757,000		)	73,675,000
Trademarks and trade names	9,277,000		—			9,277,000
Total intangible assets	$	136,709,000	$	(53,757,000	)	$	82,952,000

Schedule of estimated amortization expense of intangible assets for remainder of fiscal 2015 and the next five years

Three month period ending July 31, 2015	$	3,483,000
Fiscal 2016	10,444,000
Fiscal 2017	9,866,000
Fiscal 2018	9,564,000
Fiscal 2019	9,240,000
Fiscal 2020	7,483,000

Schedule of changes in goodwill

				Water
				Purification			Healthcare							Total
	Endoscopy			and Filtration			Disposables		Dialysis		Other			Goodwill
Balance, July 31, 2013	$	59,230,000		$	57,179,000		$	80,108,000	$	8,133,000	$	6,968,000		$	211,618,000
Acquisitions	19,225,000			—			1,727,000		—		—			20,952,000
Foreign currency translation	(181,000		)	(341,000		)	—		—		(401,000		)	(923,000		)
Balance, July 31, 2014	78,274,000			56,838,000			81,835,000		8,133,000		6,567,000			231,647,000
Acquisitions	11,299,000			2,965,000			6,095,000		—		—			20,359,000
Foreign currency translation	(2,398,000		)	(540,000		)	—		—		(827,000		)	(3,765,000		)
Sale of business	—			—			—		—		(5,740,000		)	(5,740,000		)
Balance, April 30, 2015	$	87,175,000		$	59,263,000		$	87,930,000	$	8,133,000	$	—		$	242,501,000