Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	May. 30, 2015	May. 31, 2014	Jun. 01, 2013
Statement of Comprehensive Income [Abstract]
Net sales	$ 2,142.2	$ 1,882.0	$ 1,774.9
Cost of sales	1,350.8	1,251.0	1,169.7
Gross margin	791.4	631.0	605.2
Operating expenses:
Selling, general, and administrative	543.9	564.3	429.2
Restructuring and impairment expenses	12.7	26.5	1.2
Design and research	71.4	65.9	59.9
Total operating expenses	628.0	656.7	490.3
Operating earnings (loss)	163.4	(25.7)	114.9
Other expenses (income):
Interest expense	17.5	17.6	17.2
Interest and other investment income	(0.6)	(0.4)	(0.4)
Other, net	1.3	0.5	0.9
Net other expenses	18.2	17.7	17.7
Earnings (loss) before income taxes	145.2	(43.4)	97.2
Income tax expense (benefit)	47.2	(21.2)	28.9
Equity earnings (loss) from nonconsolidated affiliates, net of tax	0.1	0.1	(0.1)
Net earnings (loss)	98.1	(22.1)	68.2
Net earnings attributable to noncontrolling interests	0.6	0.0	0.0
Net earnings (loss) attributable to Herman Miller, Inc.	$ 97.5	$ (22.1)	$ 68.2
Earnings (loss) per share — basic	$ 1.64	$ (0.37)	$ 1.17
Earnings (loss) per share — diluted	$ 1.62	$ (0.37)	$ 1.16
Other comprehensive income (loss):
Foreign currency translation adjustments (net of tax of $0.3, $ - , and $ - )	$ (9.7)	$ 2.9	$ (1.0)
Pension and post-retirement liability adjustments (net of tax of $2.2, $(50.9) and $(8.8))	(8.6)	83.5	17.3
Total other comprehensive income (loss)	(18.3)	86.4	16.3
Comprehensive income	79.8	64.3	84.5
Comprehensive income attributable to noncontrolling interests	0.6	0.0	0.0
Comprehensive income attributable to Herman Miller, Inc.	$ 79.2	$ 64.3	$ 84.5