Inventories (Tables)

12 Months Ended

Dec. 31, 2011

Inventories [Abstract]

Inventories

in thousands	2011		2010
Inventories
Finished products	$	260,732		$254,840
Raw materials		23,819		22,222
Products in process		4,198		6,036
Operating supplies and other		38,908		36,747
Total	$	327,657		$319,845