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Acquisitions and Divestitures (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 26 Months Ended | 0 Months Ended | 5 Months Ended | 0 Months Ended |  | 12 Months Ended
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May 31, 2014 | Jun. 01, 2013 | Jun. 02, 2012 | May 31, 2014 | Sep. 30, 2013 Dongguan Sun Hing Steel Furniture Factory LTD | Mar. 01, 2014 Dongguan Sun Hing Steel Furniture Factory LTD | Apr. 29, 2013 Maharam Fabric Corporation | Apr. 29, 2013 Maharam Fabric Corporation | Apr. 29, 2013 Maharam Fabric Corporation Trade Names | Apr. 29, 2013 Maharam Fabric Corporation Designs And Patterns | Apr. 29, 2013 Maharam Fabric Corporation Customer Relationships | Apr. 29, 2013 Maharam Fabric Corporation Non-compete Agreements | Apr. 02, 2012 Posh Office Systems LTD | May 31, 2014 Posh Office Systems LTD | May 31, 2014 Wholly-owned Contract Furniture Dealership dealerships | Jun. 01, 2013 Wholly-owned Contract Furniture Dealership dealerships | Jun. 02, 2012 Wholly-owned Contract Furniture Dealership dealerships | May 31, 2014 Wholly-owned Contract Furniture Dealership Oklahoma
Business Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price |  |  |  |  | $ 8.2 |  | $ 155.8 | $ 155.8 |  |  |  |  | $ 58.9 |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  | 6.7 |  |  |  |  |  |  | 48.8 |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |  |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  |  |  |  |  |  |  |  |  | 10.1 | 4.1 |  |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | 2.6 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment contingent consideration | 1.3 | 0.8 | 0 | 1.4 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquired assets during period |  |  |  |  |  |  |  |  |  |  |  |  | 15.8 |  |  |  |  |
Acquired liabilities during period |  |  |  |  |  |  |  | 15.1 |  |  |  |  | 8.6 |  |  |  |  |
Deferred tax liability |  |  |  |  |  |  |  |  |  |  |  |  | 4.9 |  |  |  |  |
Goodwill | 228.2 | 227.0 | 146.4 | 228.2 |  |  |  | 80.7 |  |  |  |  | 34.5 |  |  |  |  |
Indefinite-lived intangible assets | 0 | 23.0 |  |  |  |  |  |  | 23.0 |  |  |  | 19.9 |  |  |  |  |
Finite-lived intangible assets |  |  |  |  |  |  |  |  |  | 3.1 | 16.0 | 0.3 | 8.9 |  |  |  |  |
Numbers of Business Divested |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 | 1 | 3 |
Gain (Loss) on sale of contract dealerships |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.3

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