Summary of Significant Accounting and Reporting Policies (Sales by Geography and Customer Type (Details) - Net sales - Geographic Concentration Risk	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Concentration Risk [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%
U.S. government
Concentration Risk [Line Items]
Concentration risk, percentage	31.30%	27.20%	34.60%
Domestic
Concentration Risk [Line Items]
Concentration risk, percentage	44.70%	47.80%	41.50%
Total United States
Concentration Risk [Line Items]
Concentration risk, percentage	76.00%	75.00%	76.10%
International
Concentration Risk [Line Items]
Concentration risk, percentage	24.00%	25.00%	23.90%