Inventories (Tables)

9 Months Ended

Sep. 30, 2020

Inventories [Abstract]

Inventories

	September 30,		December 31,
(Dollars in thousands)	2020		2019
Raw materials	$	84,417	$	80,176
Work in process		50,548		49,717
Finished goods		137,832		134,583
Total inventories	$	272,797	$	264,476