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Acquisitions and Divestitures (Details) - USD ($) $ in Millions					3 Months Ended	6 Months Ended
	Aug. 31, 2018	Jun. 07, 2018	Jul. 31, 2017	Jan. 01, 2017	Mar. 03, 2018	Dec. 01, 2018	Dec. 02, 2017	Jun. 02, 2018
Business Acquisition [Line Items]
Payments to Acquire Intangible Assets						$ 4.8	$ 0.0
Proceeds from sale of property and dealers						0.0	2.0
MAARS
Business Acquisition [Line Items]
Percentage of voting interests acquired	48.00%
Purchase price	$ 6.1
Nine United Denmark A/S
Business Acquisition [Line Items]
Percentage of voting interests acquired		33.00%
Purchase price		$ 65.5
Payments to Acquire Intangible Assets		$ 4.8
CANADA | Wholly-owned contract furniture dealership
Business Acquisition [Line Items]
(Gain) loss on sales of property and dealers							$ 1.1
Proceeds from sale of property and dealers			$ 2.0
PENNSYLVANIA | Wholly-owned contract furniture dealership
Business Acquisition [Line Items]
(Gain) loss on sales of property and dealers					$ 0.7
Proceeds from sale of property and dealers				$ 3.0
Accounts and Notes Receivable, Net						$ 2.6		$ 2.5

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Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of account and note receivables due from other than related parties.

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