Inventories (Tables)

9 Months Ended

Sep. 30, 2014

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following:

	Sept. 30, 2014			Sept. 30, 2013			Dec. 31, 2013
	(Dollars in thousands)
Raw materials	$	181,034		$	163,129		$	158,963
Work-in-process	125,290			117,559			104,811
Finished goods	364,261			353,426			333,978
Other	14,285			13,296			14,398
	684,870			647,410			612,150
Adjustment to value inventory    at cost on the LIFO method	(96,580		)	(102,891		)	(96,580		)
	$	588,290		$	544,519		$	515,570