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Investments in Nonconsolidated Affiliates (Details) $ in Millions | Sep. 30, 2016 USD ($) | Jun. 03, 2016 USD ($) | Jun. 03, 2017 USD ($) occurence | May 28, 2016
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Schedule of Equity Method Investments |  |  |  |
Number of Equity Method Investments | occurence |  |  | 5 |
Kvadrat Maharam Pty Limited |  |  |  |
Schedule of Equity Method Investments |  |  |  |
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity |  |  | $ 1.8 |
Business Acquisition, Percentage of Voting Interests Acquired |  |  | 50.00% | 50.00%
Naughtone Holdings Limited [Member] |  |  |  |
Schedule of Equity Method Investments |  |  |  |
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity |  | $ 11.3 | $ 9.8 |
Business Acquisition, Percentage of Voting Interests Acquired |  | 50.00% |  | 0.00%
Payments to acquire equity method investments | $ 0.6 | $ 12.4 |  |
Equity Method Investment, Temporary Difference Between Carrying Amount and Underlying Equity |  | 2.9 | 2.3 |
Equity Method Investment, Permanent Difference Between Carrying Amount and Underlying Equity |  | $ 8.4 | $ 7.5 |

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- Definition Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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