Inventories (Tables)

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consist of the following:

(In thousands)	March 31 2020		December 31 2019
Finished goods	$	13,138	$	14,550
Work-in-process	10,795		13,088
Raw materials and purchased parts	118,637		104,488
Stores and supplies	25,320		24,865
Total inventories	$	167,890	$	156,991