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Redeemable Noncontrolling Interests (Details) - USD ($) $ in Millions	9 Months Ended
	Feb. 27, 2016	Feb. 28, 2015
Redeemable Noncontrolling Interest [Line Items]
Redeemable Noncontrolling Interests, Beginning	$ 30.4
Redeemable Noncontrolling Interests, Ending	27.6
Herman Miller Consumer Holdings
Redeemable Noncontrolling Interest [Line Items]
Redeemable Noncontrolling Interests, Beginning	30.4	$ 0.0
Increase due to business combination	0.0	25.7
Net income attributable to redeemable noncontrolling interests	0.5	0.2
Exercised options	0.0	0.7
Redemption value adjustment	(3.4)	0.0
Other adjustments	0.1	0.9
Redeemable Noncontrolling Interests, Ending	$ 27.6	$ 27.5

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- Definition

Redeemable Noncontrolling Interests, Change, Other Changes

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- Definition

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

+ References

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

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Increase in noncontrolling interest balance because of a business combination that occurred during the period.

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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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