Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	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 Jun. 01, 2013		$ 0	$ 11.7	$ 102.9	$ 331.1	$ (124.3)	$ (1.9)	$ 0
Balance at beginning of year at Jun. 01, 2013	0
Increase (Decrease) in Redeemable Noncontrolling Interest [Roll Forward]
Redeemable noncontrolling interests related to DWR acquisition	0
Stock-based compensation expense	0
Redeemable Noncontrolling Interest, Equity, Increase from Sale of Interest in Subsidiary Equity	0
Redeemable Noncontrolling Interest, Equity, Increase from Exercise of Stock Option	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase and retirement of common stock				(4.1)
Exercise of stock options			0.1	8.0
Stock-based compensation expense				5.6
Excess tax benefit for stock-based compensation				0.7
Restricted stock units released				0.1
Employee stock purchase plan issuances				0.8
Net income attributable to Herman Miller, Inc.	(58.1)				(58.1)
Dividends declared, per share	$ 0.250
Dividends declared on common stock (per share - 2015: $0.280; 2014; $0.250)					(14.9)
Other comprehensive income (loss)	89.7					89.7
Deferred compensation plan							0
Noncontrolling interests related to DWR acquisition								0
Purchase of noncontrolling interests								0
Balance at end of period at Nov. 30, 2013	347.4	0	11.8	114.0	258.1	(34.6)	(1.9)	0
Redeemable noncontrolling interests at Nov. 30, 2013	0
Balance at beginning of year at May. 31, 2014		0	11.9	122.4	277.4	(37.9)	(1.7)	0
Balance at beginning of year at May. 31, 2014	0
Increase (Decrease) in Redeemable Noncontrolling Interest [Roll Forward]
Redeemable noncontrolling interests related to DWR acquisition	25.7
Stock-based compensation expense	0.5
Redeemable Noncontrolling Interest, Equity, Increase from Sale of Interest in Subsidiary Equity	0.1
Redeemable Noncontrolling Interest, Equity, Increase from Exercise of Stock Option	0.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase and retirement of common stock				(3.2)
Exercise of stock options			0	4.9
Stock-based compensation expense				5.2
Excess tax benefit for stock-based compensation				0.2
Restricted stock units released				0.1
Employee stock purchase plan issuances				0.8
Net income attributable to Herman Miller, Inc.	53.0				53.0
Dividends declared, per share	$ 0.280
Dividends declared on common stock (per share - 2015: $0.280; 2014; $0.250)					(16.8)
Other comprehensive income (loss)	(5.0)					(5.0)
Deferred compensation plan							0
Noncontrolling interests related to DWR acquisition								5.8
Purchase of noncontrolling interests								(5.8)
Balance at end of period at Nov. 29, 2014	411.3	0	11.9	130.4	313.6	(42.9)	(1.7)	0
Redeemable noncontrolling interests at Nov. 29, 2014	$ 27.0