The following tables present information about the Company’s financial assets and liabilities that have been measured at fair value on a recurring basis as of March 31, 2020 and December 31, 2019, and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):

	Fair Value Measurement as of March 31, 2020
	Level 1		Level 2		Level 3		Total
Financial Assets:
Cash equivalents:
Money market funds	$	138,733	$	—	$	—	$	138,733
Commercial paper		—		27,478		—		27,478
U.S. government treasury securities		—		12,000		—		12,000
Certificates of deposit		—		3,202		—		3,202
Marketable Securities:
Corporate debt securities		—		319,499		—		319,499
U.S. government agencies		—		14,972		—		14,972
Certificates of deposit		—		39,919		—		39,919
U.S. government treasury securities		—		107,054		—		107,054
Commercial paper		—		118,940		—		118,940
Total financial assets	$	138,733	$	643,064	$	—	$	781,797

	Fair Value Measurement as of December 31, 2019
	Level 1		Level 2		Level 3		Total
Financial Assets:
Cash equivalents:
Money market funds	$	588,762	$	—	$	—	$	588,762
Marketable Securities:
Corporate debt securities		—		80,417		—		80,417
U.S. government treasury securities		—		72,473		—		72,473
Commercial paper		—		23,784		—		23,784
Total financial assets	$	588,762	$	176,674	$	—	$	765,436