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WARRANTIES (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Changes in product warranty accrual    
Balance at the beginning of period $ 3,432 $ 3,800
Warranties issued 688 662
Warranty settlement costs 622 793
Changes in accruals for pre-existing warranties (287) (344)
Currency translation adjustments (117) 107
Balance at the end of period $ 3,094 $ 3,432