Stock-Based Compensation (Stock Options) (Details) - USD ($)	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Awards (In Shares)
Outstanding, Beginning Balance (in shares)	483,480	1,073,435	1,422,025
Granted (in shares)	0	0	0
Expired/canceled (in shares)	(242,970)	(588,735)	(348,590)
Exercised (in shares)	0	(1,220)	0
Outstanding, Ending Balance (in shares)	240,510	483,480	1,073,435
Exercisable, Ending Balance (in shares)	211,870
Vested and Expected to Vest, Ending Balance (in shares)	238,868
Weighted Average Exercise Price (Per Share)
Outstanding, Beginning Balance (in dollars per share)	$ 24.43	$ 25.76	$ 26.17
Expired/canceled (in dollars per share)	24.89	26.86	27.44
Exercised (in dollars per share)		17.88
Outstanding, Ending Balance (in dollars per share)	23.96	$ 24.43	$ 25.76
Exercisable, Ending Balance (in dollars per share)	24.78
Vested and Expected to Vest, Ending Balance (in dollars per share)	$ 24.00
Weighted Average Remaining Contractual Term (Years)
Outstanding, Ending Balance	3 years 11 months 19 days
Exercisable, Ending Balance	3 years 7 months 17 days
Vested And Expected To Vest, Ending Balance	3 years 11 months 15 days
Aggregated Intrinsic Value
Outstanding, Ending Balance	$ 0
Exercisable, Ending Balance	0	$ 7,000
Vested and Expected to Vest, Ending Balance	$ 0
Additional Disclosures
Exercise price, lower range limit (in dollars per share)	$ 17.88
Exercise price, upper range limit (in dollars per share)	$ 33.94
Stock options
Additional Disclosures
Contractual term (in years)	10 years
Vesting period (in years)	5 years
Vested stock-based awards net settled upon exercise (in shares)		1,220
Common stock issued for net settlement of stock-based awards (in shares)		220