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Product Warranties (Tables)
3 Months Ended
Mar. 31, 2016
Guarantees [Abstract]  
Product Warranty Activities

Product warranty activities were as follows:

 

     Three Months Ended March 31,  
     2016      2015  

Beginning of period

   $ 5,205       $ 6,266   

Provision for product warranties

     783         1,109   

Direct charges to warranty liability

     (984      (1,244

Foreign currency translation

     35         (67
  

 

 

    

 

 

 

End of period

   $ 5,039       $ 6,064