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Goodwill and Indefinite-lived Intangibles (Details) - USD ($) $ in Millions			9 Months Ended
	Dec. 02, 2019	Oct. 25, 2019	Feb. 29, 2020	Jun. 01, 2019
Goodwill [Roll Forward]
Goodwill, beginning			$ 303.8
Foreign currency translation adjustments			0.0
Goodwill, ending			466.1
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-Lived Intangible Assets (Excluding Goodwill), beginning			78.1
Foreign currency translation adjustments			(0.3)
Indefinite-Lived Intangible Assets (Excluding Goodwill), ending			142.3
Rollforward of Goodwill and Indefinite-lived Intangible Assets [Roll Forward]
Goodwill and indefinite-lived intangibles, beginning			381.9
Foreign currency translation adjustments			(0.3)
Goodwill and indefinite-lived intangibles, ending			608.4
Goodwill			303.8	$ 303.8
Indefinite-lived intangibles			78.1	78.1
Design Within Reach | Trade Names
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-Lived Intangible Assets (Excluding Goodwill), beginning			55.1
Rollforward of Goodwill and Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-lived intangibles			55.1	55.1
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure				63.2
Indefinite-lived Intangible Asset, Amount of Fair Value in Excess of Carrying Amount				$ 8.1
Indefinite-lived Intangible Asset, Percentage of Fair Value in Excess of Carrying Amount				14.70%
Retail
Goodwill [Roll Forward]
Goodwill, beginning			249.9
Rollforward of Goodwill and Indefinite-lived Intangible Assets [Roll Forward]
Goodwill			249.9	$ 249.9
Goodwill, Fair Value Disclosure				282.6
Reporting Unit, Amount of Fair Value in Excess of Carrying Amount				$ 32.7
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount				13.00%
HAY
Goodwill [Roll Forward]
Acquisitions			104.8
Indefinite-lived Intangible Assets [Roll Forward]
Acquisitions			56.0
Rollforward of Goodwill and Indefinite-lived Intangible Assets [Roll Forward]
Acquisitions			160.8
HAY | Trade Names
Indefinite-lived Intangible Assets [Roll Forward]
Acquisitions	$ 56.0
naughtone
Goodwill [Roll Forward]
Acquisitions			57.5
Indefinite-lived Intangible Assets [Roll Forward]
Acquisitions			8.5
Rollforward of Goodwill and Indefinite-lived Intangible Assets [Roll Forward]
Acquisitions			$ 66.0
naughtone | Trade Names
Indefinite-lived Intangible Assets [Roll Forward]
Acquisitions		$ 8.5

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Goodwill And Other Non Amortizable Intangibles.

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The change during the reporting period in the carrying value of Goodwill and indefinite-lived intangible assets due to foreign currency.

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Rollforward of Goodwill and Indefinite-lived Intangible Assets [Roll Forward]

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Fair value portion of asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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