XML 24 R37.htm IDEA: XBRL DOCUMENT v3.3.0.814
Summary of Significant Accounting Policies - Basis of presentation and description of business (Details)
9 Months Ended
Sep. 30, 2015
channel
Business Acquisition [Line Items]  
Number of products sales channels 2
Comfort Revolution  
Business Acquisition [Line Items]  
Equity method investment, ownership percentage 45.00%