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

3 Months Ended

Mar. 31, 2020

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
	March 31,		December 31,
	2020		2019
	(In thousands)
Marketable investment securities:
Current marketable investment securities:
Strategic - available-for-sale	$	191	$	196
Other		560,529		416,508
Total current marketable investment securities		560,720		416,704
Restricted marketable investment securities (1)		393		390
Total marketable investment securities		561,113		417,094
Restricted cash and cash equivalents (1)		60,900		60,677
Other investment securities:
Other investment securities		161,717		160,074
Total other investment securities		161,717		160,074
Total marketable investment securities, restricted cash and cash equivalents, and other investment securities	$	783,730	$	637,845

(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 March 31, 2020								As of December 31,
	2020								2019
	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	$	5,011	$	22	$	—	$	22	$	10,016	$	32	$	—	$	32
Commercial paper		484,969		—		—		—		369,397		2		—		2
Corporate securities		69,194		—		(135)		(135)		28,796		4		(1)		3
Other		1,939		—		—		—		8,885		58		—		58
Total	$	561,113	$	22	$	(135)	$	(113)	$	417,094	$	96	$	(1)	$	95

Schedule of fair value measurements

	As of
	March 31, 2020								December 31, 2019
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
	(In thousands)
Cash equivalents (including restricted)	$	2,808,795	$	840,775	$	1,968,020	$	—	$	2,436,545	$	246,876	$	2,189,669	$	—
Debt securities (including restricted):
U.S. Treasury and agency securities	$	5,011	$	5,011	$	—	$	—	$	10,016	$	10,016	$	—	$	—
Commercial paper		484,969		—		484,969		—		369,397		—		369,397		—
Corporate securities		69,194		—		69,194		—		28,796		—		28,796		—
Other		1,939		—		1,747		192		8,885		—		8,689		196
Total	$	561,113	$	5,011	$	555,910	$	192	$	417,094	$	10,016	$	406,882	$	196

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

	For the Three Months Ended
	March 31,
Other, net:	2020		2019
	(In thousands)
Marketable investment securities - realized and unrealized gains (losses)	$	58	$	3,056
Costs related to early redemption of debt		—		(439)
Equity in earnings of affiliates		867		(1,065)
Other		667		7,536
Total	$	1,592	$	9,088