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CONTINGENT LIABILITIES AND COMMITMENTS (Tables)
 12 Months Ended
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Schedule of changes in the warranty reserve
Changes in the warranty reserve are as follows (in thousands):
 
2014
 
2013
 
2012
Balance, beginning of the year
$
8,214

 
$
7,852

 
$
8,146

Provision for warranty claims
6,664

 
7,092

 
6,488

Warranty claims paid
(6,631
)
 
(6,716
)
 
(6,887
)
Increase due to acquisition
—

 
—

 
106

Foreign currency translation adjustment
(67
)
 
(14
)
 
(1
)
Balance, end of the year
$
8,180

 
$
8,214

 
$
7,852