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Summary of Significant Accounting Policies - Basis of presentation and description of business (Details) - 6 months ended Jun. 30, 2015 - channel | Total
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Business Acquisition [Line Items] |
Number of products sales channels | 2
Comfort Revolution |
Business Acquisition [Line Items] |
Equity method investment, ownership percentage | 45.00%

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- Definition Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28200181&loc=SL6759159-111685 + Details
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