Inventories (Tables)

9 Months Ended

Sep. 30, 2021

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consist of the following:

(In thousands)	September 30 2021		December 31 2020
Finished goods	$	9,052	$	8,505
Work-in-process	23,793		29,005
Raw materials and purchased parts	95,156		105,306
Stores and supplies	35,071		30,197
Total inventories	$	163,072	$	173,013