Inventories (Tables)

9 Months Ended

Sep. 30, 2020

Inventory Disclosure [Abstract]

Summary of Inventories

	September 30, 2020		December 31, 2019
(Dollars in thousands)
Raw materials	$	32,536	$	44,245
Work in process		40,459		40,344
Finished goods		68,292		83,881
Inventories, net	$	141,287	$	168,470