Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Key Executive Deferred Compensation	Noncontrolling Interests
Balance at beginning of year at May. 28, 2016		$ 0.0	$ 12.0	$ 142.7	$ 435.3	$ (64.5)	$ (1.1)	$ 0.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options			0.0	5.5
Repurchase and retirement of common stock			0.0	(12.0)
Stock-based compensation expense				4.4
Excess tax benefit for stock-based compensation				(0.3)
Restricted stock units released				1.9
Employee stock purchase plan issuances				1.1
Net income attributable to Herman Miller, Inc.	$ 68.0				68.0
Dividends declared on common stock (per share - 2018: $0.36; 2017; $0.34)					(20.4)
Redeemable noncontrolling interests valuation adjustment					0.3
Other comprehensive income (loss)	(4.6)					(4.6)
Net income attributable to noncontrolling interests	0.1
Balance at beginning of year and end of period at Dec. 03, 2016	568.6	0.0	12.0	143.3	483.2	(69.1)		0.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of accounting change				0.0	0.0
Herman Miller, Inc. Stockholders' Equity	568.3
Herman Miller, Inc. Stockholders' Equity	587.5
Balance at beginning of year at Jun. 03, 2017	587.7	0.0	11.9	139.3	519.5	(82.2)	$ (1.0)	0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options			0.1	4.7
Repurchase and retirement of common stock			0.1	(17.2)
Stock-based compensation expense				1.1
Excess tax benefit for stock-based compensation				0.0
Restricted stock units released				1.7
Employee stock purchase plan issuances				1.1
Net income attributable to Herman Miller, Inc.	66.5				66.5
Dividends declared on common stock (per share - 2018: $0.36; 2017; $0.34)					(21.6)
Redeemable noncontrolling interests valuation adjustment					(0.1)
Other comprehensive income (loss)	7.1					7.1
Net income attributable to noncontrolling interests	0.0
Balance at beginning of year and end of period at Dec. 02, 2017	630.8	$ 0.0	$ 11.9	$ 130.4	$ 564.4	$ (75.1)		$ 0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Herman Miller, Inc. Stockholders' Equity	$ 630.6