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Earnings Per Share - Schedule of Calculation of Numerator and Denominator in Earnings Per Share (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Jun. 01, 2019	Mar. 02, 2019	Dec. 01, 2018	Sep. 01, 2018	Jun. 02, 2018	Mar. 03, 2018	Dec. 02, 2017	Sep. 02, 2017	Jun. 03, 2017	Mar. 04, 2017	Dec. 03, 2016	Sep. 03, 2016	Jun. 01, 2019	Jun. 02, 2018	Jun. 03, 2017
Numerator:
Numerator for both basic and diluted EPS, Net earnings attributable to Herman Miller, Inc.	$ 46.2	$ 39.2	$ 39.3	$ 35.8	$ 31.8	$ 29.8	$ 33.5	$ 33.1	$ 33.4	$ 22.5	$ 31.7	$ 36.3	$ 160.5	$ 128.1	$ 123.9
Denominator:
Denominator for basic EPS, weighted-average common shares outstanding													59,011,945	59,681,268	59,871,805
Potentially dilutive shares resulting from stock plans													369,846	630,037	682,784
Denominator for diluted EPS													59,381,791	60,311,305	60,554,589

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Denominator

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Numerator: [Abstract]

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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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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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