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Share Repurchase Plan (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		13 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Oct. 12, 2021
Share Repurchase Plan [Abstract]
Share buy-back plan, amount authorized				$ 75,000
Share buy-back plan, number of shares repurchased	22,420		160,982
Average price of shares repurchased	$ 181.60		$ 206.38
Total cost of repurchased shares	$ 4,072	$ 7,386	$ 33,200

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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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