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Redeemable Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 01, 2018	Sep. 02, 2017
Redeemable Noncontrolling Interest [Line Items]
Redeemable Noncontrolling Interests, Beginning	$ 30.5
Redeemable Noncontrolling Interests, Ending	20.7
Herman Miller Consumer Holdings
Redeemable Noncontrolling Interest [Line Items]
Redeemable Noncontrolling Interests, Beginning	30.5	$ 24.6
Purchase of redeemable noncontrolling interests	10.0	1.0
Net income attributable to redeemable noncontrolling interests	0.1	0.0
Exercised options	0.2	0.0
Redemption value adjustment	0.0	(0.2)
Other adjustments	(0.1)	0.0
Redeemable Noncontrolling Interests, Ending	$ 20.7	$ 23.4

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Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

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Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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