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Changes in Accumulated Other Comprehensive Loss by Component (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Accumulated Other Comprehensive Income [Roll Forward]        
Beginning Balance     $ (64)  
Other comprehensive loss (26) 14 (19) (3)
Ending Balance (83)   (83)  
Foreign Currency
       
Accumulated Other Comprehensive Income [Roll Forward]        
Beginning Balance     (64)  
Other comprehensive loss     (19)  
Ending Balance $ (83)   $ (83)