Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Deferred Compensation Plan	Herman Miller, Inc. Stockholders' Equity	Noncontrolling Interests
Balance at beginning of period (in shares) at Jun. 02, 2018		59,230,974
Balance at beginning of period at Jun. 02, 2018	$ 664.8	$ 11.7	$ 116.6	$ 598.3	$ (61.3)	$ (0.7)	$ 664.6	$ 0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	35.8			35.8			35.8
Other Comprehensive Income (Loss), Net of Tax	(7.8)				(7.8)		(7.8)
Stock-based compensation expense	2.2		2.2				2.2
Exercise of stock options (in shares)		265,739
Exercise of stock options	8.1	$ 0.2	7.9				8.1
Restricted and performance stock units released (in shares)		335,266
Restricted and performance stock units released	0.1	$ 0.1					0.1
Employee stock purchase plan issuances (in shares)		16,805
Employee stock purchase plan issuances	(0.5)		(0.5)				(0.5)
Repurchase and retirement of common stock (in shares)		(545,866)
Repurchase and retirement of common stock	(20.8)	$ (0.1)	(20.7)				(20.8)
Dividends declared	(11.6)			(11.6)			(11.6)
Balance at end of period (in shares) at Sep. 01, 2018		59,302,918
Balance at end of period at Sep. 01, 2018	673.2	$ 11.9	106.5	624.5	(69.2)	(0.7)	673.0	0.2
Balance at beginning of period (in shares) at Jun. 02, 2018		59,230,974
Balance at beginning of period at Jun. 02, 2018	664.8	$ 11.7	116.6	598.3	(61.3)	(0.7)	664.6	0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	75.2
Other Comprehensive Income (Loss), Net of Tax	(10.9)				(10.9)
Balance at end of period (in shares) at Dec. 01, 2018		58,902,002
Balance at end of period at Dec. 01, 2018	685.4	$ 11.8	94.3	650.6	(70.8)	(0.7)	685.2	0.2
Balance at beginning of period (in shares) at Sep. 01, 2018		59,302,918
Balance at beginning of period at Sep. 01, 2018	673.2	$ 11.9	106.5	624.5	(69.2)	(0.7)	673.0	0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	39.3			39.3			39.3
Other Comprehensive Income (Loss), Net of Tax	(3.1)				(3.1)		(3.1)
Stock-based compensation expense	2.5		2.5				2.5
Exercise of stock options (in shares)		53,614
Exercise of stock options	1.3	$ 0.0	1.3				1.3
Restricted and performance stock units released (in shares)		7,511
Restricted and performance stock units released	0.0	$ 0.0					0.0
Employee stock purchase plan issuances (in shares)		14,813
Employee stock purchase plan issuances	(0.5)		(0.5)				(0.5)
Repurchase and retirement of common stock (in shares)		(476,854)
Repurchase and retirement of common stock	(16.6)	$ (0.1)	(16.5)				(16.6)
Dividends declared	(11.7)			(11.7)			(11.7)
Balance at end of period (in shares) at Dec. 01, 2018		58,902,002
Balance at end of period at Dec. 01, 2018	685.4	$ 11.8	94.3	650.6	(70.8)	(0.7)	685.2	0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of accounting change					1.4
Balance at beginning of period (in shares) at Jun. 01, 2019		58,794,148
Balance at beginning of period at Jun. 01, 2019	719.2	$ 11.7	89.8	712.7	(94.2)	(0.8)	719.2	0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	48.0			48.2			48.2	(0.2)
Other Comprehensive Income (Loss), Net of Tax	(17.3)				(17.3)		(17.3)
Stock-based compensation expense	2.6		2.6				2.6
Exercise of stock options (in shares)		382,898
Exercise of stock options	12.2	$ 0.1	12.1				12.2
Restricted and performance stock units released (in shares)		45,105
Restricted and performance stock units released	0.0	$ 0.0					0.0
Employee stock purchase plan issuances (in shares)		14,750
Employee stock purchase plan issuances	(0.5)		(0.5)				(0.5)
Repurchase and retirement of common stock (in shares)		(173,001)
Repurchase and retirement of common stock	(7.6)	$ 0.0	(7.6)				(7.6)
Deferred compensation plan	0.2					0.2	0.2
Dividends declared	(12.5)			(12.5)			(12.5)
Redemption value adjustment	0.0			(0.2)			(0.2)	0.2
Balance at end of period (in shares) at Aug. 31, 2019		59,063,900
Balance at end of period at Aug. 31, 2019	745.3	$ 11.8	97.4	748.2	(111.5)	(0.6)	745.3	0.0
Balance at beginning of period (in shares) at Jun. 01, 2019		58,794,148
Balance at beginning of period at Jun. 01, 2019	719.2	$ 11.7	89.8	712.7	(94.2)	(0.8)	719.2	0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	126.6
Other Comprehensive Income (Loss), Net of Tax	0.5				0.5
Balance at end of period (in shares) at Nov. 30, 2019		59,075,241
Balance at end of period at Nov. 30, 2019	844.6	$ 11.8	100.4	826.7	(93.7)	(0.6)	844.6	0.0
Balance at beginning of period (in shares) at Aug. 31, 2019		59,063,900
Balance at beginning of period at Aug. 31, 2019	745.3	$ 11.8	97.4	748.2	(111.5)	(0.6)	745.3	0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	78.6			78.6			78.6
Other Comprehensive Income (Loss), Net of Tax	17.8				17.8		17.8
Stock-based compensation expense	2.8		2.8				2.8
Exercise of stock options (in shares)		5,227
Exercise of stock options	0.1	$ 0.0	0.1				0.1
Restricted and performance stock units released (in shares)		3,653
Restricted and performance stock units released	0.0	$ 0.0					0.0
Employee stock purchase plan issuances (in shares)		12,467
Employee stock purchase plan issuances	(0.5)		(0.5)				(0.5)
Repurchase and retirement of common stock (in shares)		(10,006)
Repurchase and retirement of common stock	(0.4)	$ 0.0	(0.4)				(0.4)
Dividends declared	(0.1)			(0.1)			(0.1)
Balance at end of period (in shares) at Nov. 30, 2019		59,075,241
Balance at end of period at Nov. 30, 2019	$ 844.6	$ 11.8	$ 100.4	$ 826.7	$ (93.7)	$ (0.6)	$ 844.6	$ 0.0