Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

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

	September 30, 2017		December 31, 2016
Finished goods	$	89,600	$	95,290
Work in process	24,890		22,930
Raw materials	45,690		42,240
Total inventories	$	160,180	$	160,460