Goodwill and Other Intangible Assets Schedule of Goodwill (Tables)

12 Months Ended

Jul. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

Changes in the carrying amount of goodwill by reportable segment for the years ended July 31, 2016 and 2015, were as follows:

	IDS			WPS			Total
Balance as of July 31, 2014	$	412,289		$	102,715		$	515,004
Impairment charge	—			(37,112		)	(37,112		)
Translation adjustments	(29,503		)	(15,190		)	(44,693		)
Balance as of July 31, 2015	$	382,786		$	50,413		$	433,199
Translation adjustments	1,743			(5,071		)	(3,328		)
Balance as of July 31, 2016	$	384,529		$	45,342		$	429,871