Inventories (Tables)

12 Months Ended

Dec. 31, 2020

Inventories [Abstract]

Inventories

(Dollars in thousands)	2020		2019
Raw materials	$	81,344	$	80,176
Work in process		48,770		49,717
Finished goods		130,218		134,583
Total inventories	$	260,332	$	264,476