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Related Party Transactions (Tables)
9 Months Ended
Sep. 30, 2014
Related Party Transactions [Abstract]  
Schedule of Related Party Transactions

For the three and nine months ended September 30, 2014 and 2013, the amount of sales to common or related parties as well as the purchases from and rent expense paid to these common or related parties were as follows:

 

     Three months ended      Nine months ended  
     September 30,      September 30,  
     2014      2013      2014      2013  

Sales

   $ 1,577       $ 317       $ 3,885       $ 901   

Purchases

     513         2,908         2,836         9,622   

Rent

     162         173         446         518