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Goodwill and Indefinite-lived Intangibles - Additional Information (Details) - USD ($) $ in Millions	Nov. 27, 2021	Jul. 19, 2021	May 29, 2021	Mar. 31, 2021
Goodwill [Line Items]
Goodwill	$ 1,284.5		$ 364.2
Indefinite-lived intangibles	497.4		$ 97.6
Knoll
Goodwill [Line Items]
Goodwill		$ 943.7
HAY trade name
Goodwill [Line Items]
Indefinite-lived intangibles				$ 41.7
Indefinite-lived intangible assets (excluding goodwill), fair value disclosure	43.8
Reporting unit, amount of fair value in excess of carrying amount	$ 2.1
Reporting unit, percentage of fair value in excess of carrying amount	5.00%

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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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