Inventories (Tables)

3 Months Ended

Mar. 31, 2022

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories, which are valued at the lower of cost or net realizable value, consisted of the following:

(Dollars in thousands)	March 31, 2022		December 31, 2021
Raw materials	$	70,684	$	60,208
Work-in-process	39,100		29,078
Finished goods	42,366		44,098
Total inventories	$	152,150	$	133,384