Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Current income tax expense:
United States	$ 2,232	$ 2,830	$ 15,279
Other Nations	22,445	26,593	23,826
States (U.S.)	913	910	1,163
Total current income tax expense	25,590	30,333	40,268
Deferred income tax expense (benefit):
United States	8,451	30,267	(8,173)
Other Nations	(667)	(1,462)	(1,329)
States (U.S.)	12	1,817	221
Total deferred income tax (benefit) expense	7,796	30,622	(9,281)
Income Tax Expense (Benefit), Continuing Operations	$ 33,386	$ 60,955	$ 30,987