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Acquisitions and Divestitures (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended	7 Months Ended	12 Months Ended
	Jul. 28, 2014	Aug. 30, 2014	Aug. 30, 2014	Feb. 28, 2015	May. 30, 2015	Aug. 29, 2015
Business Acquisition
Long-term Line of Credit	$ 127.0
Goodwill					$ 303.1	$ 303.0
Design Within Reach
Business Acquisition
Business Acquisition, Percentage of Voting Interests Acquired	81.00%
Purchase price				$ 155.2
Business Acquisition, Goodwill, Expected Tax Deductible Amount	$ 10.0
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests, Percent		4.00%
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests		$ 5.8
Business Combination, Acquisition Related Costs			$ 2.0		$ 2.2
Goodwill	75.6
Other intangible assets	68.5
Redeemable Noncontrolling Interest | Design Within Reach
Business Acquisition
Fair value of fully-vested options granted	$ 1.7
Herman Miller Consumer Holdings, Inc. | Design Within Reach
Business Acquisition
Capital Contributed, Percentage of Acquiree		15.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	7.00%

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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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 of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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