Property, Plant and Equipment (Tables)

12 Months Ended

Jul. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

July 31 (in thousands)	2017			2016
Equipment	$	75,867		$	73,856
Land and buildings		62,255			60,452
Computer software		88,480			68,607
Leasehold improvements		1,977			1,710
Furniture and fixtures		1,474			1,428
		230,053			206,053
Less accumulated depreciation and amortization		(141,059	)		(118,719	)
Property, plant and equipment, net	$	88,994		$	87,334