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Operating Segments - Revenue from External Customers by Products and Services (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	May 29, 2021	Feb. 27, 2021	Nov. 28, 2020	Aug. 29, 2020	May 30, 2020	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	Jun. 01, 2019	Mar. 02, 2019	Dec. 01, 2018	Sep. 01, 2018	May 29, 2021	May 30, 2020	Jun. 01, 2019
Revenue from External Customer
Net sales	$ 621.5	$ 590.5	$ 626.3	$ 626.8	$ 475.7	$ 665.7	$ 674.2	$ 670.9	$ 671.0	$ 619.0	$ 652.6	$ 624.6	$ 2,465.1	$ 2,486.6	$ 2,567.2
Workplace
Revenue from External Customer
Net sales													854.7	1,135.8	1,201.8
Performance Seating
Revenue from External Customer
Net sales													784.6	646.8	708.5
Lifestyle
Revenue from External Customer
Net sales													689.9	537.5	473.5
Other
Revenue from External Customer
Net sales													$ 135.9	$ 166.5	$ 183.4

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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