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Stock-based Compensation (Schedule Of Performance Share Units) (Details) - Performance Share Units [Member] $ / shares in Units, $ in Thousands	12 Months Ended
	Aug. 31, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Number of Shares | shares
Granted, Number of Shares | shares	19,468
Performance factor adjustment, Number of Shares | shares
Converted to common shares, Number of Shares | shares
Forfeited, Number of Shares | shares	(1,216)
Outstanding, Number of Shares | shares	18,252	[1]
Outstanding, Weighted-Average Grant Date Fair Value Per Share | $ / shares
Granted, Weighted-Average Grant Date Fair Value Per Share | $ / shares	197.51
Performance factor adjustment, Weighted-Average Grant Date Fair Value Per Share | $ / shares
Converted to common shares, Weighted-Average Grant Date Fair Value Per Share | $ / shares
Forfeited, Weighted-Average Grant Date Fair Value Per Share | $ / shares	197.51
Outstanding, Weighted-Average Grant Date Fair Value Per Share | $ / shares	$ 197.51	[1]
Outstanding, Aggregate Intrinsic Value | $	$ 4,373	[1]
Vesting percentage	100.00%
Attainment level percentage	100.00%
[1] PSUs pertaining to the measurement year of fiscal year 2021 vested at 100% since performance conditions were fully achieved at an attainment level of 100%, which was certified subsequent to August 31, 2021 by the Company’s compensation committee.

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