Investments (Tables)

3 Months Ended

Mar. 31, 2021

Investments [Abstract]

Schedule of available-for-sale investments

Available-for-sale investments at March 31, 2021 were as follows:

(In thousands)	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Cash equivalents:
Money market funds	$	165,667	$	—	$	—	$	165,667
Time deposits	31,588		—		—		31,588
Commercial Paper	131,000		—		—		131,000
Government and corporate bonds	9,709		—		—		9,709
Total cash equivalents	337,964		—		—		337,964
Short-term investments:
Time deposits	31,192		—		—		31,192
Commercial paper	252,500		9		(70)		252,439
Government and corporate bonds	192,606		226		(101)		192,731
Total short-term investments	476,298		235		(171)		476,362
Long-term investments:
Government and corporate bonds	105,645		10		(72)		105,583
Total available-for-sale investments	$	919,907	$	245	$	(243)	$	919,909

Available-for-sale investments at December 31, 2020 were as follows:

(In thousands)	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Cash equivalents:
Money market funds	$	40,027	$	—	$	—	$	40,027
Time deposits	36,756		—		—		36,756
Commercial Paper	61,000		—		—		61,000
Total cash equivalents	137,783		—		—		137,783
Short-term investments:
Time deposits	28,302		—		—		28,302
Commercial Paper	264,000		12		(19)		263,993
Government and corporate bonds	149,975		247		(44)		150,178
Total short-term investments	442,277		259		(63)		442,473
Long-term investments:
Government and corporate bonds	136,983		152		(57)		137,078
Total available-for-sale investments	$	717,043	$	411	$	(120)	$	717,334