Stock-Based Compensation (Status for Options Which Contain Vesting Provisions) (Details) - $ / shares	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Options
Balance outstanding as of beginning of year (in shares)	1,809,473
Granted (in shares)	920,816	898,726	1,004,631
Vested (in shares)	(895,862)
Forfeited (in shares)	(50,716)
Balance outstanding as of ending of year (in shares)	1,783,711	1,809,473
Weighted Average Grant Date Fair Value
Balance outstanding as of beginning of year (in usd per share)	$ 12.31
Granted (in usd per share)	15.67	$ 14.24	$ 10.23
Vested (in usd per share)	11.78
Forfeited (in usd per share)	13.61
Balance outstanding as of beginning of year (in usd per share)	$ 14.27	$ 12.31