Inventory (Tables)

12 Months Ended

Dec. 31, 2017

Inventory

Schedule of inventory

	As of December 31,
	2017		2016
	(In thousands)
Finished goods	$	248,233	$	282,569
Work-in-process and service repairs		54,445		129,486
Raw materials		18,221		10,268
Total inventory	$	320,899	$	422,323