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Restructuring Activities Restructuring Activities (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Sep. 01, 2018 | Sep. 02, 2017
Restructuring Reserve [Roll Forward] |  |
Restructuring and impairment expenses | $ 1.1 | $ 1.4
Restructuring and impairment expenses | 1.1 | 1.4
ELA Furniture Solutions |  |
Restructuring Cost and Reserve [Line Items] |  |
Effect on Future Earnings, Amount | 3.0 |
Restructuring Reserve [Roll Forward] |  |
Beginning Balance | 0.0 |
Restructuring and impairment expenses | 1.1 |
Payments | 1.1 |
Ending Balance | 0.0 |
Assets Held-for-sale, Long Lived, Fair Value Disclosure | 5.0 |
Restructuring and Related Cost, Cost Incurred to Date | 5.0 |
Restructuring and Related Cost, Expected Cost Remaining | 2.0 |
UNITED KINGDOM | ELA Furniture Solutions |  |
Restructuring Reserve [Roll Forward] |  |
Impairment of Long-Lived Assets to be Disposed of | 0.7 |
CHINA | ELA Furniture Solutions |  |
Restructuring Reserve [Roll Forward] |  |
Restructuring and impairment expenses | $ 0.4 |
Herman Miller Consumer Holdings [Member] | North America [Member] |  |
Restructuring Reserve [Roll Forward] |  |
Beginning Balance |  | 2.4
Restructuring and impairment expenses |  | 1.4
Payments |  | 1.8
Ending Balance |  | $ 2.0

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