Inventories (Tables)

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Schedule Of Inventories

nventories are comprised of the following: 

	As of December 31, 2014		As of  September 30, 2015
	(Dollars in thousands)
Inventories:
Raw materials and supplies	$	122,218	$	91,480
Work in process	176,141		142,215
Finished goods	84,544		88,573
Total	$	382,903	$	322,268