Note 17 - Pension and Postretirement Benefits - Schedule of Contributions for Plans That Are Not Individually Significant (Details) - USD ($) $ in Millions	12 Months Ended
May 28, 2023	May 29, 2022	May 30, 2021
Total Contributions	$ 9.2	$ 8.1	$ 7.4
Central States Southeast and Southwest Areas Pension Fund [Member]
Total Contributions	2.6	2.5	2.2
Western Conference Of Teamsters Pension Plan [Member]
Total Contributions	4.4	3.8	3.8
Retirement Plan Name, Other [Member]
Total Contributions	$ 2.2	$ 1.8	$ 1.4

Amount of contribution received by multiemployer pension plan from all employers participating in multiemployer pension plan determined to be individually significant.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 80
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480547/715-80-55-8

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 80
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480576/715-80-50-7

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration