v2.4.0.8
Significant Concentrations - Additional Information (Detail)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Airxcel, Inc.
     
Concentration Risk [Line Items]      
Percentage of purchases from major suppliers 25.00% 22.00% 20.00%
Zhejiang
     
Concentration Risk [Line Items]      
Percentage of purchases from major suppliers   6.00% 6.00%
Zhejiang | Maximum
     
Concentration Risk [Line Items]      
Percentage of purchases from major suppliers 5.00%