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Share Repurchase Plan (Details) - USD ($)	9 Months Ended		19 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	Oct. 12, 2021
Equity [Abstract]
Share buy-back plan, amount authorized				$ 75,000,000
Number of shares repurchased (in shares)	41,670		180,232
Average price of shares repurchased (in dollars per share)	$ 178.41		$ 203.02
Total cost of repurchased shares	$ 7,434,000	$ 22,390,000	$ 36,600,000

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The cash outflow to reacquire common stock during the period.

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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