Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories consist of the following components:

	March 31, 2016		December 31, 2015
	(dollars in thousands)
Finished goods	$	101,920	$	101,480
Work in process	25,340		23,620
Raw materials	40,060		42,270
Total inventories	$	167,320	$	167,370