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Earnings Per Share Earnings Per Share - Schedule of Calculation of Numerator and Denominator in Earnings Per Share (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 02, 2019	Mar. 03, 2018	Mar. 02, 2019	Mar. 03, 2018
Earnings Per Share [Abstract]
Numerator for both basic and diluted EPS, Net earnings attributable to Herman Miller, Inc. - in millions	$ 39.2	$ 29.8	$ 114.5	$ 96.3
Denominator for basic EPS, weighted-average common shares outstanding	58,838,958	59,691,709	59,087,899	59,753,271
Potentially dilutive shares resulting from stock plans	288,300	670,375	360,395	620,943
Denominator for diluted EPS	59,127,258	60,362,084	59,448,294	60,374,214
Antidilutive equity awards not included in weighted-average common shares - diluted	401,811	101,763	211,097	381,446

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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