Inventories (Tables)

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Inventories

The components of inventories at December 31 were as follows:

	2014			2013
	(Dollars in thousands)
Raw materials	$	184,714		$	158,963
Work-in-process	115,308			104,811
Finished goods	338,562			333,978
Other	13,541			14,398
	652,125			612,150
Adjustment to value inventory at cost on the LIFO method	(103,360		)	(96,580		)
	$	548,765		$	515,570