Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

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Name:	us-gaap_AccountsReceivableRelatedPartiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 23, 2020	Feb. 24, 2019	Feb. 23, 2020	Feb. 24, 2019	May 26, 2019	Jul. 15, 2014
Windset
Related Party Transaction [Line Items]
Investment ownership percentage	26.90%		26.90%			26.90%
Windset
Related Party Transaction [Line Items]
Related accounts receivable	$ 0.3		$ 0.3		$ 0.5
Cost of sales \| Windset
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.2	$ 0.1	$ 0.4	$ 0.3