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PRODUCT WARRANTY COSTS (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 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 3,198 2,721
Settlements (2,904) (3,301)
Foreign currency translation (44) (69)
Balance at end of year $ 15,430 $ 14,655