Inventories (Tables)

12 Months Ended

Dec. 31, 2011

Inventories [Abstract]

Schedule Of Inventory

	2011		2010
Finished products	$	234,830	$	219,568
Feedstock, additives, and chemicals		207,899		189,007
Materials and supplies		48,048		41,453
Inventories	$	490,777	$	450,028