Inventories (Tables)

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following:

	June 30, 2017		December 31, 2016
	(In thousands)
Raw materials and purchased components	$	193,103	$	173,035
Work-in-process	102,647		94,955
Total inventories	$	295,750	$	267,990