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Other, Net (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Foreign currency transaction gains (losses) $ (360) $ 286 $ (1,009) $ 47
Realized gain on available-for-sale securities     1,557  
Other 13 (26) (17) (89)
Total $ (347) $ 260 $ 531 $ (42)