Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Inventories

The components of inventories at December 31 were as follows:

	2016			2015
	(Dollars in thousands)
Raw materials	$	179,451		$	215,018
Work-in-process	121,331			118,947
Finished goods	355,072			371,561
Other	15,528			13,938
	671,382			719,464
Adjustment to value inventory at cost on the LIFO method	(68,419		)	(91,326		)
	$	602,963		$	628,138