Marketable Investment Securities, Restricted Cash and Cash Equivalents, and Other Investment Securities (Tables)

6 Months Ended

Jun. 30, 2018

Marketable Investment Securities, Restricted Cash and Cash Equivalents, and Other Investment Securities

Schedule of marketable investment securities, restricted cash and cash equivalents, and other investment securities

	As of
	June 30,		December 31,
	2018		2017
	(In thousands)
Marketable investment securities:
Current marketable investment securities:
Strategic - available-for-sale	$	196	$	195
Strategic - trading/equity (Note 2)		71,943		93,367
Other		474,865		407,603
Total current marketable investment securities		547,004		501,165
Restricted marketable investment securities (1)		72,554		72,014
Total marketable investment securities		619,558		573,179
Restricted cash and cash equivalents (1)		418		393
Other investment securities:
Other investment securities - equity method		115,870		113,460
Total other investment securities		115,870		113,460
Total marketable investment securities, restricted cash and cash equivalents, and other investment securities	$	735,846	$	687,032

(1) Restricted marketable investment securities and restricted cash and cash equivalents are included in “Restricted cash, cash equivalents and marketable investment securities” on our Condensed Consolidated Balance Sheets.

Schedule of components of available-for-sale investments

	As of June 30, 2018								As of December 31, 2017
	Marketable								Marketable
	Investment		Unrealized						Investment		Unrealized
	Securities		Gains		Losses		Net		Securities		Gains		Losses		Net
	(In thousands)
Debt securities (including restricted):
U.S. Treasury and agency securities	$	72,301	$	—	$	(59)	$	(59)	$	84,286	$	22	$	(141)	$	(119)
Commercial paper		50,000		—		—		—		107,962		—		(10)		(10)
Corporate securities		423,253		77		(124)		(47)		282,256		—		(124)		(124)
Other		2,061		58		—		58		5,308		58		(1)		57
Total	$	547,615	$	135	$	(183)	$	(48)	$	479,812	$	80	$	(276)	$	(196)

Schedule of available-for-sale securities in continuous unrealized loss position by length of time and their fair value

	As of
	June 30, 2018				December 31, 2017
	Fair		Unrealized		Fair		Unrealized
	Value		Loss		Value		Loss
	(In thousands)
Debt Securities:
Less than 12 months	$	328,752	$	(147)	$	410,145	$	(156)
12 months or more		14,771		(36)		34,340		(120)
Total	$	343,523	$	(183)	$	444,485	$	(276)

Schedule of fair value measurements

	As of
	June 30, 2018								December 31, 2017
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
	(In thousands)
Cash equivalents (including restricted)	$	969,510	$	2,794	$	966,716	$	—	$	1,425,798	$	655	$	1,425,143	$	—
Debt securities (including restricted):
U.S. Treasury and agency securities	$	72,301	$	72,301	$	—	$	—	$	84,286	$	84,286	$	—	$	—
Commercial Paper		50,000		—		50,000		—		107,962		—		107,962		—
Corporate securities		423,253		—		423,253		—		282,256		—		282,256		—
Other		2,061		—		1,865		196		5,308		—		5,113		195
Equity securities		71,943		71,943		—		—		93,367		93,367		—		—
Total	$	619,558	$	144,244	$	475,118	$	196	$	573,179	$	177,653	$	395,331	$	195

Schedule of gains and losses on sales and changes in carrying amounts of investments

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
Other, net:	2018		2017		2018		2017
	(In thousands)
Marketable investment securities - gains (losses) on sales/exchanges	$	5,393	$	2,487	$	6,139	$	4,759
Marketable investment securities - unrealized gains (losses) on equity securities		16,441		—		(20,848)		—
Costs related to early redemption of debt		(2,537)		—		(2,716)		—
Equity in earnings		759		1,120		2,205		394
Other		1,376		(440)		1,844		2,759
Total	$	21,432	$	3,167	$	(13,376)	$	7,912