Operating Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Nov. 29, 2014	Nov. 30, 2013	Nov. 29, 2014	Nov. 30, 2013	May 31, 2014
Segment Reporting Information
Net Sales:	$ 565.4us-gaap_SalesRevenueNet	$ 470.5us-gaap_SalesRevenueNet	$ 1,075.1us-gaap_SalesRevenueNet	$ 938.6us-gaap_SalesRevenueNet
Depreciation and Amortization:	13.2	10.5	25.2	21.6
Operating Earnings:	46.7us-gaap_OperatingIncomeLoss	(125.2)us-gaap_OperatingIncomeLoss	88.9us-gaap_OperatingIncomeLoss	(86.1)us-gaap_OperatingIncomeLoss
Capital Expenditures:	18.5	13.5	26.7	20.0
Total Assets:	1,193.9us-gaap_Assets		1,193.9us-gaap_Assets		990.9us-gaap_Assets
Total Goodwill:	303.9us-gaap_Goodwill		303.9us-gaap_Goodwill		228.2us-gaap_Goodwill
North American Furniture Solutions
Segment Reporting Information
Net Sales:	315.3	297.1	636.4	615.3
Depreciation and Amortization:	7.0	7.6	14.2	14.7
Operating Earnings:	32.3	(119.0)	68.5	(85.0)
Capital Expenditures:	11.5	10.8	15.7	15.3
Total Assets:	509.0		509.0		457.0
Total Goodwill:	135.8		135.8		135.8
ELA Furniture Solutions
Segment Reporting Information
Net Sales:	114.3	103.1	209.7	184.7
Depreciation and Amortization:	2.2	1.4	4.4	3.4
Operating Earnings:	10.4	8.2	13.5	8.1
Capital Expenditures:	4.4	1.2	6.3	2.6
Total Assets:	238.4		238.4		244.8
Total Goodwill:	42.1		42.1		42.6
Specialty
Segment Reporting Information
Net Sales:	55.4	53.2	110.0	105.2
Depreciation and Amortization:	1.8	1.3	3.5	3.0
Operating Earnings:	2.8	(8.9)	5.7	(7.1)
Capital Expenditures:	1.1	1.5	2.2	2.1
Total Assets:	155.7		155.7		157.7
Total Goodwill:	49.8		49.8		49.8
Consumer
Segment Reporting Information
Net Sales:	80.4	17.1	119.0	33.4
Depreciation and Amortization:	2.1	0.2	3.0	0.5
Operating Earnings:	1.5	(1.3)	3.8	2.1
Capital Expenditures:	1.5	0	2.5	0
Total Assets:	219.5		219.5		18.8
Total Goodwill:	76.2		76.2		0
Corporate
Segment Reporting Information
Net Sales:	0	0	0	0
Depreciation and Amortization:	0.1	0	0.1	0
Operating Earnings:	(0.3)	(4.2)	(2.6)	(4.2)
Capital Expenditures:	0	0	0	0
Total Assets:	71.3		71.3		112.6
Total Goodwill:	$ 0		$ 0		$ 0

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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