Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following:

	December 31,
	2016		2015
	(In thousands)
Raw materials and purchased components	$	173,035	$	163,024
Work-in-process	94,955		75,181
Total inventories	$	267,990	$	238,205