Investments (Tables)

6 Months Ended

Jun. 30, 2021

Investments [Abstract]

Schedule of available-for-sale investments

Available-for-sale investments at June 30, 2021 were as follows:

(In thousands)	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Cash equivalents:
Money market funds	$	52,425	$	—	$	—	$	52,425
Time deposits	37,685		—		—		37,685
Total cash equivalents	90,110		—		—		90,110
Short-term investments:
Time deposits	32,163		—		—		32,163
Commercial paper	354,800		27		(13)		354,814
Government and corporate bonds	251,453		112		(54)		251,511
Total short-term investments	638,416		139		(67)		638,488
Long-term investments:
Government and corporate bonds	106,306		2		(108)		106,200
Total available-for-sale investments	$	834,832	$	141	$	(175)	$	834,798

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