Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Jan. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 168,707	$ 131,373	$ 386,887	$ 245,456
Other comprehensive income:
Foreign currency translation adjustments	(580)	8,423	12,659	705
Comprehensive income, net of tax:
Comprehensive income	$ 168,127	$ 139,796	$ 399,546	$ 246,161