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Segment Reporting (Tables)
9 Months Ended
Sep. 30, 2013
Segment Reporting [Abstract]  
Net sales between residential, industrial/commercial and other products
The Company's product offerings consist primarily of power products with a range of power output geared for varying end customer uses. Residential power products and commercial & industrial power products are each a similar class of products based on similar power output and end customer usage. The breakout of net sales between residential, commercial & industrial, and other products is as follows:
 
   
Three Months Ended September 30,
  
Nine Months Ended September 30,
 
   
2013
  
2012
  
2013
  
2012
 
Residential power products
 $192,728  $190,974  $644,588  $489,454 
Commercial & industrial power products
  151,488   93,607   411,995   299,718 
Other
  19,053   16,005   52,946   45,112 
   Total
 $363,269  $300,586  $1,109,529  $834,284