Inventories (Tables)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following:

	June 30, 2015			June 30, 2014			Dec. 31, 2014
	(Dollars in thousands)
Raw materials	$	204,195		$	190,546		$	184,714
Work-in-process	121,144			123,557			115,308
Finished goods	516,931			517,897			338,562
Other	14,086			12,807			13,541
	856,356			844,807			652,125
Adjustment to value inventory    at cost on the LIFO method	(103,021		)	(96,580		)	(103,360		)
	$	753,335		$	748,227		$	548,765