Inventories (Tables)

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories consist of the following components (dollars in thousands):

	June 30, 2017		December 31, 2016
Finished goods	$	86,230	$	95,290
Work in process	25,210		22,930
Raw materials	44,890		42,240
Total inventories	$	156,330	$	160,460