Equity Method Investments in Affiliates (Summarized Financial Information of Investments on Operations Statement) (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Equity Method Investments in Affiliates
Net sales	$ 0	$ 32,894	$ 6,494	$ 56,544
Gross margin	0	12,529	1,995	19,800
Operating profit/(loss)	0	2,582	(9,975)	(1,761)
Income/(loss) from continuing operations	0	2,825	(11,018)	556
Net income/(loss)	0	2,825	(11,018)	556
Net income/(loss) attributable to the registrant	$ 0	$ 2,265	$ (8,814)	$ 444