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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

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-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-03.1)

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-Name Regulation S-X (SX)

-Number 210

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Aquisitions and Divestitures Acquisitions and Divestitures - Business Combinations Results of of Operations of Acquiree (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Feb. 28, 2015	Mar. 01, 2014	Feb. 28, 2015	Mar. 01, 2014
Business Acquisition
Net sales	$ 516.4us-gaap_SalesRevenueNet	$ 455.9us-gaap_SalesRevenueNet	$ 1,591.5us-gaap_SalesRevenueNet	$ 1,394.5us-gaap_SalesRevenueNet
Design Within Reach
Business Acquisition
Net sales	59.5		147.9
Net sales impact to Herman Miller, Inc.	52.5		133.5
Net loss	(0.5)		(4.3)
Intercompany Segment Eliminations \| Design Within Reach
Business Acquisition
Net sales	$ (7.0)		$ (14.4)