Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following:

	March 31, 2014			March 31, 2013			Dec. 31, 2013
	(Dollars in thousands)
Raw materials	$	185,848		$	161,853		$	158,963
Work-in-process	122,083			129,548			104,811
Finished goods	424,236			443,084			333,978
Other	13,136			14,176			14,398
	745,303			748,661			612,150
Adjustment to value inventory    at cost on the LIFO method	(96,580		)	(102,891		)	(96,580		)
	$	648,723		$	645,770		$	515,570