Risk Concentrations (Tables)

12 Months Ended

Dec. 31, 2011

Segments, Geographical Areas [Abstract]

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area

The Company uses shipping destination as the basis for attributing revenue to individual countries.   The Company's foreign revenues by geographical location for the year ended December 31, 2011, follows:

	December 31, 2011
	(In thousands)
Europe	$          427,514
South America	120,842
North America	97,255
Asia	61,308
Brokered sales	213,087
Total	$          920,006