Income Taxes - Schedule of (Loss) Earnings from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Income Tax Disclosure [Abstract]
United States	$ 69,433	$ 55,077	$ 48,903
Other Nations	71,503	109,567	103,112
Income before income taxes and losses of unconsolidated affiliate	$ 140,936	$ 164,644	$ 152,015