Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Tax Credit Carryforward [Line Items]
Income tax expense (benefit)	$ 7.2	$ 0.8	$ 2.0
Change in tax reserve	0.1	2.2	(0.1)
Foreign withholding taxes		2.3
Income tax expense (benefit)	12.6	25.3	12.0
Net deferred tax asset (liability)	2.9
Deferred Tax Liabilities, Net		10.2
Valuation allowance	9.3	7.5
Undistributed Earnings of Foreign Subsidiaries	376.2
Gross unrecognized tax benefits	5.3	5.2	3.1
Income tax penalties and interest accrued	0.2	$ 0.1
Federal
Tax Credit Carryforward [Line Items]
Gross operating loss carryforwards	38.4
Federal income tax benefit	25.0
State
Tax Credit Carryforward [Line Items]
Gross operating loss carryforwards	68.9
Federal income tax benefit	47.2
Foreign Tax Authority
Tax Credit Carryforward [Line Items]
Gross operating loss carryforwards	6.8
Federal income tax benefit	0.0
Foreign Tax Authority | Tax Credit Carryforward, Period, Indefinite | Investment Tax Credit Carryforward | MALTA
Tax Credit Carryforward [Line Items]
Total unused credits	$ 36.1
Impact of U.S. Tax Reform
Tax Credit Carryforward [Line Items]
Income tax expense (benefit)			$ (4.8)