Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2014
Current income tax expense (benefit):
United States	$ 5,048	$ 9,075	$ (1,137)
Other Nations	19,929	18,806	19,513
States (U.S.)	1,348	(352)	1,090
Total current income tax expense	26,325	27,529	19,466
Deferred income tax expense (benefit):
United States	3,946	(5,906)	(22,754)
Other Nations	(1,387)	(1,868)	(1,803)
States (U.S.)	351	338	128
Total deferred income tax (benefit) expense	2,910	(7,436)	(24,429)
Income Tax Expense (Benefit), Continuing Operations	$ 29,235	$ 20,093	$ (4,963)