Stockholders' Equity (Details) - USD ($)	3 Months Ended		9 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021	Dec. 21, 2021
Equity [Abstract]
Stock-based compensation	$ 9,750,000	$ 8,366,000	$ 22,736,000	$ 21,424,000
Stock repurchase program authorized amount					$ 250,000,000
Purchase of treasury shares (in shares)	499,106		1,090,067
Average price of treasury shares acquired (in dollars per share)	$ 80.12		$ 90.20
Purchases of treasury shares	$ 39,990,000		$ 98,321,000
Remaining authorized repurchase amount	$ 151,679,000		$ 151,679,000