Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories were as follows at the end of the periods noted below:

(Dollars in thousands)	September 30, 2017		December 31, 2016
Raw materials	$	43,857	$	29,788
Work-in-process	30,859		26,440
Finished goods	39,402		34,902
Total inventories	$	114,118	$	91,130