Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues:
Manufacturing operations (including no revenues from affiliates for the three months ended June 30, 2011 and $33,552 for the three months ended June 30, 2010, and including revenues from affiliates of $1,221 and $46,127 for the six months ended June 30, 2011 and 2010, respectively)	$ 94,597	$ 43,223	$ 163,293	$ 78,858
Railcar services (including revenues from affiliates of $6,596 and $3,179 for the three months ended June 30, 2011 and 2010, and including revenues from affiliates $12,133 and $6,020 for the six months ended June 30, 2011 and 2010, respectively)	17,316	17,942	33,463	34,618
Total revenues	111,913	61,165	196,756	113,476
Cost of revenue:
Manufacturing operations	(86,100)	(44,890)	(152,681)	(82,277)
Railcar services	(12,557)	(13,705)	(25,875)	(27,673)
Total cost of revenue	(98,657)	(58,595)	(178,556)	(109,950)
Gross profit	13,256	2,570	18,200	3,526
Selling, administrative and other (including costs to a related party of $145 and $154 for the three months ended June 30, 2011 and 2010, and $291 and $308 for the six months ended June 30, 2011 and 2010, respectively)	(5,062)	(5,606)	(11,944)	(11,693)
Earnings (loss) from operations	8,194	(3,036)	6,256	(8,167)
Interest income (including income from related parties of $705 and $614 for the three months ended June 30, 2011 and 2010, and $1,384 and $1,221 for the six months ended June 30, 2011 and 2010, respectively)	944	769	1,860	1,499
Interest expense	(5,330)	(5,319)	(10,665)	(10,640)
Other income (including income from a related party of $3 and $4 for the three months ended June 30, 2011 and 2010, and $7 and $8 for the six months ended June 30, 2011 and 2010, respectively)	15	292	19	377
Loss from joint ventures	(2,829)	(2,271)	(5,071)	(4,053)
Earnings (loss) before income taxes	994	(9,565)	(7,601)	(20,984)
Income tax (expense) benefit	(425)	3,683	2,841	8,079
Net earnings (loss)	$ 569	$ (5,882)	$ (4,760)	$ (12,905)
Net earnings (loss) per common share - basic and diluted	$ 0.03	$ (0.28)	$ (0.22)	$ (0.61)
Weighted average common shares outstanding - basic and diluted	21,352	21,302	21,351	21,302
Dividends declared per common share