Income Taxes (Schedule of Reconciliation of U.S. Statutory Income Tax Rate With Effective Income Tax Rate) (Details)	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Income Tax Disclosure [Abstract]
Statutory U.S. federal rate (percentage)	21.00%	21.00%	21.00%
State income taxes (percentage)	0.90%	0.80%	0.90%
Foreign operations (percentage)	3.60%	4.40%	3.50%
Global Intangible Low Tax Income (GILTI) (percentage)	0.30%	0.60%	0.20%
Foreign Derived Intangible Income (FDII) (percentage)	(0.60%)	(0.70%)	(1.40%)
Research and development credit (percentage)	(0.60%)	(0.70%)	(0.70%)
Change in unrecognized tax benefits (percentage)	(0.80%)	0.20%	0.60%
Tax benefits on stock-based compensation (percentage)	(0.50%)	(1.00%)	(1.20%)
Other (percentage)	0.80%	0.10%	0.40%
Effective income tax rate (percentage)	24.10%	24.70%	23.30%