Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consisted of the following:

	(In thousands) December 31,
	2016		2015
Raw materials and supplies	$	64,650	$	61,840
Work in process	56,806		49,299
Finished goods	9,180		10,073
	130,636		121,212
Less progress payments	10,740		5,808
Total	$	119,896	$	115,404