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PRODUCT WARRANTY COSTS (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Product Warranties Disclosures [Abstract]    
Maximum period of warranty services 3 years  
Changes in the carrying amount of product warranty accruals    
Balance at beginning of year $ 15,180 $ 15,304
Accruals for warranties 6,200 5,777
Settlements (5,787) (6,306)
Foreign currency translation 25 (190)
Balance at end of year $ 15,618 $ 14,585