Revenue Recognition (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024	Jul. 31, 2024	Jul. 31, 2023
Concentration Risk [Line Items]
Unbilled receivables, not billable	$ 18,557,000		$ 18,557,000
Capitalized contract cost, impairment loss	0	$ 0
Contract liabilities	64,386,000		64,386,000		$ 65,834,000	$ 66,351,000
Revenue recognized			48,661,000	$ 39,877,000
Capitalized contract cost, amortization	763,000	$ 818,000	2,717,000	$ 2,070,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-05-01
Concentration Risk [Line Items]
Remaining performance obligations, amount	$ 708,057,000		$ 708,057,000
Remaining performance obligations, period	24 months		24 months