Inventories

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consist of the following (in thousands):

	June 30,		December 31,
	2018		2017
Raw material and subassemblies	$	213,149	$	210,615
Work-in-progress	50,698		47,400
Finished goods	120,395		114,168
	$	384,242	$	372,183