Inventory (Tables)

12 Months Ended

Dec. 31, 2018

Inventory

Schedule of inventory

	As of December 31,
	2018		2017
	(In thousands)
Finished goods	$	215,186	$	248,233
Work-in-process and service repairs		56,871		54,455
Raw materials		18,676		18,320
Total inventory	$	290,733	$	321,008