Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2020

Cash, Cash Equivalents And Marketable Securities [Abstract]

Cash, Cash Equivalents, And Marketable Securities

The following table summarizes the Company’s cash, cash equivalents, and marketable securities and the fair value categorization of the financial instruments measured at fair value on a recurring basis:

	As of December 31,
	2020		2019
	(In thousands)
Cash	$	28,832	$	33,238
Time deposits	4,176		3,924
Money market funds (Level 1)	129,627		149,624
Debt securities issued by the U.S. Treasury (Level 1)	1,013,679		1,040,678
Total	$	1,176,314	$	1,227,464
Cash and cash equivalents	$	401,194	$	508,196
Restricted cash (included in Other long-term assets)	9,407		9,405
Total Cash, cash equivalents, and restricted cash	410,601		517,601
Marketable securities	765,713		709,863
Total	$	1,176,314	$	1,227,464