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CONTINGENT LIABILITIES AND COMMITMENTS (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Changes in warranty reserve    
Balance, December 31, 2016 $ 8,906  
Provision for warranty claims 1,106 $ 1,600
Warranty claims paid (1,464)  
Foreign currency translation adjustment 302  
Balance, March 31, 2017 $ 8,850