Restructuring Activities	6 Months Ended
Restructuring Activities	Nov. 30, 2013
Restructuring Charges [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	RESTRUCTURING AND IMPAIRMENT ACTIVITIES Due to the acquisition of a manufacturing and distribution operation in Dongguan, China in the second quarter of 2014, Herman Miller has decided not to pursue the construction of a new manufacturing and distribution facility on property that it previously acquired in Ningbo, China. In connection with this decision, the company evaluated the fair value of this property and recorded an asset impairment of $4.0 million during the second quarter. This impairment charge was recorded to the "Restructuring and impairment expenses" line item within the Condensed Consolidated Statements of Comprehensive Income. The impairment charge is included within the "Corporate" category within the segment reporting. In May 2012, the company announced a plan ("The 2012 Plan") to consolidate the Nemschoff manufacturing operations in Sheboygan, Wisconsin with the closure of the Sioux Center, Iowa seating plant. The 2012 Plan included the consolidation of the Sheboygan manufacturing sites into one location. This plan reduced fixed costs and operating expenses and improved operating performance and profitability. The 2012 Plan reduced the company's workforce in North America by approximately 70 employees. No additional restructuring expenses are anticipated in future periods for the 2012 Plan.

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

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