Inventories (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Inventories

	September 30, 2013		December 31, 2012
	(Dollars in thousands)
Raw materials	$	59,272	$	64,923
Work in process		35,716		35,028
Finished goods		100,629		100,873
Total inventories	$	195,617	$	200,824