Goodwill, Regulatory Authorizations and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of regulatory authorizations with finite and indefinite useful lives

Regulatory authorizations included amounts with finite and indefinite useful lives, as follows:

	As of December 31, 2017			Additions			Currency Translation Adjustment			As of March 31, 2018
	(In thousands)
Finite useful lives:
Cost	$	92,621		$	—		$	1,373		$	93,994
Accumulated amortization	(21,342		)	(1,364		)	(397		)	(23,103		)
Net	71,279			(1,364		)	976			70,891
Indefinite lives	465,657			—			—			465,657
Total regulatory authorizations, net	$	536,936		$	(1,364	)	$	976		$	536,548

Schedule of other intangible assets subject to amortization

Our other intangible assets, which are subject to amortization, consisted of the following:

	Weighted Average Useful Life (in Years)	As of
		March 31, 2018							December 31, 2017
		Cost		Accumulated Amortization			Carrying Amount		Cost		Accumulated Amortization			Carrying Amount
		(In thousands)
Customer relationships	8	$	270,300	$	(234,928	)	$	35,372	$	270,300	$	(231,642	)	$	38,658
Technology-based	6	61,300		(60,951		)	349		61,300		(60,927		)	373
Trademark portfolio	20	29,700		(10,148		)	19,552		29,700		(9,776		)	19,924
Total other intangible assets		$	361,300	$	(306,027	)	$	55,273	$	361,300	$	(302,345	)	$	58,955