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Shareholders' Equity - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Jul. 31, 2021	Aug. 01, 2020
2014 Incentive Plan
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Stock-based compensation expense	$ 4.0	$ 0.9
RSAs
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Shares granted in period (in shares)	928,412
Additional stock issuable, shares	464,206
Unrecognized stock-based compensation cost	$ 26.5
RSUs
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Deferred R S Us	577,055
Stock Options | 2010 Plan and 2007 Plan
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Intrinsic value of options exercised	$ 0.2
Minimum | RSAs
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Vesting percentage	0.00%
Maximum | RSAs
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Vesting percentage	100.00%
Maximum | RSUs | 2014 Incentive Plan
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Vesting period	5 years

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