Intangibles and Goodwill (Tables)

12 Months Ended

Jul. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets

The Company’s intangible assets consist of the following:

	July 31, 2017							July 31, 2016
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Intangible assets with finite lives:
Customer relationships	$	119,576	$	(34,773	)	$	84,803	$	100,649	$	(24,689	)	$	75,960
Technology	42,794		(18,990		)	23,804		32,767		(11,813		)	20,954
Brand names	8,188		(3,225		)	4,963		6,194		(2,394		)	3,800
Non-compete agreements	3,092		(1,428		)	1,664		3,092		(1,193		)	1,899
Patents and other registrations	2,783		(1,053		)	1,730		2,508		(913		)	1,595
	176,433		(59,469		)	116,964		145,210		(41,002		)	104,208
Trademarks and tradenames	7,548		—			7,548		7,511		—			7,511
Total intangible assets	$	183,981	$	(59,469	)	$	124,512	$	152,721	$	(41,002	)	$	111,719

Schedule of changes in goodwill

Goodwill changed during fiscal 2017 and 2016 as follows:

	Endoscopy			Water Purification and Filtration		Healthcare Disposables		Dialysis		Total Goodwill
Balance, July 31, 2015	$	87,007		$	58,872	$	87,939	$	8,133	$	241,951
Acquisitions	40,047			—		4,351		—		44,398
Foreign currency translation	(6,039		)	8		—		—		(6,031		)
Balance, July 31, 2016	121,015			58,880		92,290		8,133		280,318
Acquisitions	8,193			—		21,989		—		30,182
Foreign currency translation	737			208		—		—		945
Balance, July 31, 2017	$	129,945		$	59,088	$	114,279	$	8,133	$	311,445