Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured at Fair Value on Recurring Basis

The following tables present information about the Company’s financial assets measured at fair value on a recurring basis and indicate the fair value hierarchy classification of such fair values as of March 31, 2021 and December 31, 2020 (in thousands):

	Fair Value Measurements at
	March 31, 2021
	Total		Level 1		Level 2		Level 3
Cash and cash equivalents:
Cash	$	494,170	$	494,170	$	—	$	—
Money market funds		629,357		629,357		—		—
Corporate debt securities		2,532		—		2,532		—
Certificates of deposit		—		—		—		—
Commercial paper		—		—		—		—
Marketable securities:
U.S. Treasury securities		—		—		—		—
Corporate debt securities		535,630		—		535,630		—
Certificates of deposit		54,273		—		54,273		—
Government-sponsored enterprise securities		3,119		—		3,119		—
Commercial paper		87,122		—		87,122		—
Other non-current assets		2,212		—		—		2,212
Total	$	1,808,415	$	1,123,527	$	682,676	$	2,212
	Fair Value Measurements at
	December 31, 2020
	Total		Level 1		Level 2		Level 3
Cash and cash equivalents:
Cash	$	395,083	$	395,083	$	—	$	—
Money market funds		742,958		742,958		—		—
Corporate debt securities		2,503		—		2,503		—
Certificates of deposit		12,527		—		12,527		—
Commercial paper		15,549		—		15,549		—
Marketable securities:
U.S. Treasury securities		47,979		—		47,979		—
Corporate debt securities		324,456		—		324,456		—
Certificates of deposit		25,162		—		25,162		—
Government-sponsored enterprise securities		33,741		—		33,741		—
Commercial paper		90,375		—		90,375		—
Other non-current assets		600		—		—		600
Total	$	1,690,933	$	1,138,041	$	552,292	$	600