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Revenue Recognition (Sales by Geography and Customer Type) (Details) - Net sales - Geographic Concentration Risk	3 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
Concentration Risk [Line Items]
Concentration risk, percentage	100.00%	100.00%
U.S. government
Concentration Risk [Line Items]
Concentration risk, percentage	35.40%	35.30%
Domestic
Concentration Risk [Line Items]
Concentration risk, percentage	48.40%	40.20%
Total United States
Concentration Risk [Line Items]
Concentration risk, percentage	83.80%	75.50%
International
Concentration Risk [Line Items]
Concentration risk, percentage	16.20%	24.50%

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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