Reportable Segments (Tables)

3 Months Ended

Oct. 31, 2017

Segment Reporting [Abstract]

Information as to operating segments

Information as to reportable segments is summarized below:

	Three Months Ended October 31,
	2017		2016
Net sales:
Endoscopy	$	112,385	$	93,828
Water Purification and Filtration	53,555		49,873
Healthcare Disposables	38,892		36,799
Dialysis	7,934		7,225
Total	$	212,766	$	187,725

None of our customers accounted for 10% or more of our consolidated net sales for the three months ended October 31, 2017 and 2016.

	Three Months Ended October 31,
	2017		2016
Segment operating income:
Endoscopy	$	19,684	$	17,561
Water Purification and Filtration	10,150		8,920
Healthcare Disposables	8,900		7,396
Dialysis	2,099		1,813
	40,833		35,690
General corporate expenses(1)	9,199		8,627
Operating income	$	31,634	$	27,063

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(1) General corporate expenses relate to unallocated corporate costs primarily related to executive management personnel as well as costs associated with certain facets of our acquisition program and being a publicly traded company.