Inventories (Tables)

6 Months Ended

Jun. 30, 2020

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consist of the following:

(In thousands)	June 30 2020		December 31 2019
Finished goods	$	13,233	$	14,550
Work-in-process	12,107		13,088
Raw materials and purchased parts	117,900		104,488
Stores and supplies	30,333		24,865
Total inventories	$	173,573	$	156,991