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Investments in Nonconsolidated Affiliates - Narrative (Details) $ in Millions		6 Months Ended
	Aug. 31, 2018 USD ($)	Nov. 28, 2020 USD ($)	May 29, 2021 USD ($) affiliate	May 30, 2020 USD ($)
Schedule of Equity Method Investments
Number of nonconsolidated affiliates | affiliate			2
Proceeds from divestiture of interests		$ 3.0
Kvadrat Maharam Pty Limited
Schedule of Equity Method Investments
Difference between investment value versus Company's proportionate share of underlying net assets				$ 1.7
Global Holdings Netherlands B.V. (Maars)
Schedule of Equity Method Investments
Difference between investment value versus Company's proportionate share of underlying net assets	$ 3.1		$ 2.5
Amortizable difference between investment value versus Company's proportionate share of underlying net assets	2.7		2.1
Permanent difference between investment value versus Company's proportionate share of underlying net assets	$ 0.4		$ 0.4
Global Holdings Netherlands B.V. (Maars)
Schedule of Equity Method Investments
Outstanding equity interest acquired (percent)	48.20%
Cash payment to acquire equity interest	$ 6.1

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