Stock Compensation Plan (Schedule Of Share Based Compensation Option And SARs Award Activity) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Share-Based Payment Arrangement [Abstract]
Awards, outstanding beginning balance (in shares)	679	873	1,061
Awards, granted (in shares)	176	97	205
Awards, exercised (in shares)	(92)	(278)	(370)
Awards, forfeited or expired (in shares)	(53)	(13)	(23)
Awards, outstanding ending balance (in shares)	710	679	873
Awards, exercisable ending balance (in shares)	459
Weighted-average exercise price, outstanding beginning balance (in dollars per share)	$ 241.13	$ 181.17	$ 138.59
Weighted-average exercise price, granted (in dollars per share)	220.73	360.69	233.01
Weighted-average exercise price, exercised (in dollars per share)	222.14	93.32	84.20
Weighted-average exercise price, forfeited or expired (in dollars per share)	280.09	271.04	236.31
Weighted-average exercise price, outstanding ending balance (in dollars per share)	235.69	$ 241.13	$ 181.17
Weighted-average exercise price, exercisable ending balance (in dollars per share)	$ 227.36
Weighted-average remaining contractual term, outstanding ending balance (in years)	6 years 3 months 18 days
Weighted-average remaining contractual term, exercisable ending balance (in years)	5 years 1 month 6 days
Aggregate intrinsic value, outstanding ending balance	$ 15,837
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number	699
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price	$ 235.58
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	6 years 3 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	$ 15,678
Aggregate intrinsic value, exercisable ending balance	$ 13,075