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Goodwill and Indefinite-lived Intangibles (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2019	Jun. 01, 2019
Goodwill [Roll Forward]
Goodwill, beginning	$ 303.8
Foreign currency translation adjustments	(0.2)
Goodwill, ending	303.6
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-Lived Intangible Assets (Excluding Goodwill), beginning	78.1
Foreign currency translation adjustments	0.0
Indefinite-Lived Intangible Assets (Excluding Goodwill), ending	78.1
Rollforward of Goodwill and Indefinite-lived Intangible Assets [Roll Forward]
Goodwill and indefinite-lived intangibles, beginning	381.9
Foreign currency translation adjustments	(0.2)
Goodwill and indefinite-lived intangibles, ending	381.7
Goodwill [Line Items]
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
Goodwill [Line Items]
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		14.60%
Retail
Goodwill [Roll Forward]
Goodwill, beginning	249.9
Goodwill [Line Items]
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%

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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.

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Indefinite-lived Intangible Asset, Amount of Fair Value in Excess of Carrying Amount

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Indefinite-lived Intangible Asset, Percentage of Fair Value in Excess of Carrying Amount

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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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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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