Intangibles and Goodwill (Tables)

3 Months Ended

Oct. 31, 2015

Intangible Assets and Goodwill

Schedule of intangible assets

	October 31, 2015
			Accumulated
	Gross		Amortization			Net
Intangible assets with finite lives:
Customer relationships	$	103,921,000	$	(23,590,000	)	$	80,331,000
Technology	32,885,000		(9,081,000		)	23,804,000
Brand names	6,900,000		(2,295,000		)	4,605,000
Non-compete agreements	3,092,000		(1,017,000		)	2,075,000
Patents and other registrations	2,286,000		(808,000		)	1,478,000
	149,084,000		(36,791,000		)	112,293,000
Trademarks and tradenames	7,510,000		—			7,510,000
Total intangible assets	$	156,594,000	$	(36,791,000	)	$	119,803,000

	July 31, 2015
			Accumulated
	Gross		Amortization			Net
Intangible assets with finite lives:
Customer relationships	$	97,697,000	$	(39,549,000	)	$	58,148,000
Technology	26,508,000		(12,656,000		)	13,852,000
Brand names	12,970,000		(10,865,000		)	2,105,000
Non-compete agreements	3,129,000		(997,000		)	2,132,000
Patents and other registrations	2,235,000		(788,000		)	1,447,000
	142,539,000		(64,855,000		)	77,684,000
Trademarks and tradenames	8,152,000		—			8,152,000
Total intangible assets	$	150,691,000	$	(64,855,000	)	$	85,836,000

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

Nine month period ending July 31, 2016	$	9,716,000
2017	12,569,000
2018	12,267,000
2019	11,943,000
2020	10,186,000
2021	9,816,000

Schedule of changes in goodwill

				Water
				Purification			Healthcare							Total
	Endoscopy			and Filtration			Disposables		Dialysis		Other			Goodwill
Balance, July 31, 2014	$	78,274,000		$	56,838,000		$	81,835,000	$	8,133,000	$	6,567,000		$	231,647,000
Acquisitions	11,093,000			2,965,000			6,104,000		—		—			20,162,000
Foreign currency translation	(2,360,000		)	(931,000		)	—		—		(827,000		)	(4,118,000		)
Sale of business	—			—			—		—		(5,740,000		)	(5,740,000		)
Balance, July 31, 2015	87,007,000			58,872,000			87,939,000		8,133,000		—			241,951,000
Acquisitions	38,973,000			—			—		—		—			38,973,000
Foreign currency translation	(466,000		)	1,000			—		—		—			(465,000		)
Balance, October 31, 2015	$	125,514,000		$	58,873,000		$	87,939,000	$	8,133,000	$	—		$	280,459,000