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Shareholders' Equity - Stock-based Compensation Expense (Details) - 2014 Incentive Plan - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 30, 2021	Oct. 31, 2020	Oct. 30, 2021	Oct. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 2.6	$ 1.0	$ 6.6	$ 1.9
RSUs | Management
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 2.6	$ 1.0	5.1	1.0
Phantom Director Awards | Director
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			0.8
RSAs | Director
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			$ 0.7	$ 0.9

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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-Publisher FASB
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