Inventories (Tables)

9 Months Ended

Sep. 30, 2011

Inventories [Abstract]

Components of inventories

	September 30, 2011			December 31, 2010
Raw materials and supplies	$	79,031		$	118,031
Work-in-process and finished goods		240,994			211,001
LIFO reserve		(62,976	)		(59,313	)
Total inventories	$	257,049		$	269,719