Goodwill and Other Intangible Assets Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Goodwill Roll Forward
Goodwill, Beginning Balance	$ 433,199	$ 515,004
Goodwill, Impairment Loss		(37,112)
Goodwill, Translation Adjustments	(3,328)	44,693
Goodwill, Ending Balance	429,871	433,199
Goodwill, Period Increase (Decrease)	3,328
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Goodwill, Impaired, Accumulated Impairment Loss		328,029
Goodwill, Impaired [Abstract]
Goodwill, Impairment Loss		(37,112)
Identification Solutions
Goodwill Roll Forward
Goodwill, Beginning Balance	382,786	412,289
Goodwill, Impairment Loss		0
Goodwill, Translation Adjustments	1,743	29,503
Goodwill, Ending Balance	384,529	382,786
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Goodwill, Impaired, Accumulated Impairment Loss		118,637
Goodwill, Impaired [Abstract]
Goodwill, Impairment Loss		0
Workplace Safety
Goodwill Roll Forward
Goodwill, Beginning Balance	50,413	102,715
Goodwill, Impairment Loss		(37,112)
Goodwill, Translation Adjustments	(5,071)	15,190
Goodwill, Ending Balance	$ 45,342	50,413
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Goodwill, Impaired, Accumulated Impairment Loss		209,392
Goodwill, Impaired [Abstract]
Goodwill, Impairment Loss		$ (37,112)