Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 30, 2020	Aug. 25, 2019
Income Tax Contingency [Line Items]
Income tax expense (benefit)	$ (4.8)	$ 18.6
Tax position, change is reasonably possible in the next twelve months	$ 6.1
Continuing Operations
Income Tax Contingency [Line Items]
Effective income tax rate (percentage)	14.80%	9.80%