Income Taxes - Schedule of (Loss) Earnings from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Income Tax Disclosure [Abstract]
United States	$ 43,561	$ 61,349	$ (582)
Restructuring Costs and Asset Impairment Charges			39,114
Impairment and Restructuring Charges, Domestic			24,574
Intercompany Royalty Transaction		21,000
Other Nations	83,071	47,996	25,577
Earnings from continuing operations before income taxes	$ 126,632	$ 109,345	$ 24,995