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Basis and Summary of Significant Accounting Policies Changes in Accumulated Other Comprehensive Loss by Component (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Accumulated Other Comprehensive Income [Roll Forward]        
Beginning Balance     $ (90)  
Other comprehensive income $ 21 $ 11 24 $ 7
Ending Balance (66)   (66)  
Foreign Currency        
Accumulated Other Comprehensive Income [Roll Forward]        
Beginning Balance     (90)  
Other comprehensive income     24  
Ending Balance $ (66)   $ (66)