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Share-Based Compensation (Share Repurchase Program) (Details) - USD ($)	3 Months Ended			41 Months Ended
	Jul. 31, 2021	Jan. 30, 2021	May 02, 2020	Jul. 31, 2021	Mar. 20, 2018
Share-based Payment Arrangement [Abstract]
Authorized amount					$ 100,000,000
Repurchase and retirement of common stock (in shares)	0	137,023		500,000
Repurchase and retirement of common stock		$ 12,700,000	$ 12,663,000	$ 50,000,000
Average price (dollars per share)		$ 92.42

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Per share weighted-average price paid for shares purchased on open market for issuance under share-based payment arrangement.

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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