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Condensed Consolidated Statements of Operations (Unaudited) (Parenthetical) (USD $)
In Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Revenues:        
Manufacturing operations revenues related to affiliates $ 0 $ 33,552 $ 1,221 $ 46,127
Revenues from affiliates included in Railcar services 6,596 3,179 12,133 6,020
Cost of revenue:        
Selling, administrative and other costs related to affiliates 145 154 291 308
Interest income from related parties 705 614 1,384 1,221
Other income from a related party $ 3 $ 4 $ 7 $ 8