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Product Warranties - Product Warranty Activities (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Guarantees [Abstract]    
Beginning balance $ 8,266 $ 8,315
Provisions for product warranties 2,755 4,514
Direct charges to warranty liability (3,987) (4,985)
Foreign currency translation (78) 422
Ending balance $ 6,956 $ 8,266