Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Inventories

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

(Dollars in thousands)	March 31, 2017		December 31, 2016
Raw materials	$	33,850	$	29,788
Work-in-process	26,452		26,440
Finished goods	34,493		34,902
Total inventories	$	94,795	$	91,130