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

3 Months Ended

Mar. 31, 2019

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,
	2019		2018
	(In thousands)
Marketable investment securities:
Current marketable investment securities:
Trading/equity (Note 2)	$	2,894	$	2,370
Other		183,169		147,370
Total current marketable investment securities		186,063		149,740
Restricted marketable investment securities (1)		59,397		67,019
Total marketable investment securities		245,460		216,759
Restricted cash and cash equivalents (1)		8,666		578
Other investment securities:
Other investment securities		102,406		108,308
Total other investment securities		102,406		108,308
Total marketable investment securities, restricted cash and cash equivalents, and other investment securities	$	356,532	$	325,645

(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, 2019								As of December 31, 2018
	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	$	59,155	$	71	$	(4)	$	67	$	66,823	$	40	$	(19)	$	21
Commercial paper		86,353		—		(5)		(5)		45,938		—		—		—
Corporate securities		95,542		10		(2)		8		100,662		11		(113)		(102)
Other		1,516		—		—		—		966		—		—		—
Total	$	242,566	$	81	$	(11)	$	70	$	214,389	$	51	$	(132)	$	(81)

Schedule of investments measured at fair value on a recurring basis

	As of
	March 31, 2019								December 31, 2018
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
	(In thousands)
Cash equivalents (including restricted)	$	343,783	$	58,435	$	285,348	$	—	$	114,464	$	12,493	$	101,971	$	—
Debt securities (including restricted):
U.S. Treasury and agency securities	$	59,155	$	59,155	$	—	$	—	$	66,823	$	66,823	$	—	$	—
Commercial paper		86,353		—		86,353		—		45,938		—		45,938		—
Corporate securities		95,542		—		95,542		—		100,662		—		100,662		—
Other		1,516		—		1,516		—		966		—		966		—
Equity securities		2,894		2,894		—		—		2,370		2,370		—		—
Total	$	245,460	$	62,049	$	183,411	$	—	$	216,759	$	69,193	$	147,566	$	—

Gains and Losses on Sales and Changes in Carrying Amounts of Investments

	For the Three Months Ended
	March 31,
Other, net:	2019		2018
	(In thousands)
Marketable investment securities - realized and unrealized gains (losses) (1)	$	2,770	$	(36,548)
Costs related to early redemption of debt		(439)		(179)
Equity in earnings of affiliates		(944)		1,446
Other		46		484
Total	$	1,433	$	(34,797)

(1) During the three months ended March 31, 2019, we recorded unrealized gains of $2 million related to equity securities held as of March 31, 2019.