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Product Warranties (Tables)
9 Months Ended
Sep. 30, 2017
Guarantees and Product Warranties [Abstract]  
Product Warranty Activities

Product warranty activities were as follows:

 

     Nine Months Ended
September 30,
 
     2017      2016  

Beginning of period

   $ 8,261      $ 5,205  

Assumed product warranty liability from Newport Merger

     —          3,040  

Provision for product warranties

     11,941        5,067  

Direct and other charges to warranty liability

     (10,080      (5,170
  

 

 

    

 

 

 

End of period(1)

   $ 10,122      $ 8,142  
  

 

 

    

 

 

 

 

(1)  Short-term product warranty of $9,725 and long-term product warranty of $397 as of September 30, 2017, are included within other current liabilities and other liabilities, respectively, within the accompanying condensed consolidated balance sheet.