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Other Income (Loss), Net (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Other Income (Loss), Net [Abstract]        
Gain on expiration/settlement of customer advances $ 0 $ 0 $ 3,463 $ 6,337
All other, net (1,187) (557) (1,165) (424)
Total other income, net $ (1,187) $ (557) $ 2,298 $ 5,913