Income Taxes (Reconciliation of U.S. Statutory Income Tax Rate With Effective Income Tax Rate) (Details)	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Income Tax Disclosure [Abstract]
U.S. statutory federal income tax rate	21.00%	21.00%	21.00%
State income taxes	0.90%	0.90%	0.80%
Foreign operations	3.80%	3.60%	4.40%
Global Intangible Low Tax Income	0.20%	0.30%	0.60%
Foreign Derived Intangible Income	(1.60%)	(0.60%)	(0.70%)
Research and development credit	(0.70%)	(0.60%)	(0.70%)
Change in unrecognized tax benefits	0.00%	(0.80%)	0.20%
Tax benefits on stock-based compensation	(0.70%)	(0.50%)	(1.00%)
Other	0.50%	0.80%	0.10%
Effective income tax rate	23.40%	24.10%	24.70%