Fair Value Measurements (Tables)

9 Months Ended

Oct. 31, 2020

Fair Value Disclosures [Abstract]

Schedule of financial assets and liabilities measured at fair value on a recurring basis

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 October 31, 2020 and January 31, 2020 and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):

	Fair Value Measurement at October 31, 2020
	Level 1		Level 2		Level 3		Total
Financial Assets:
Cash and cash equivalents:
Money market funds	$	286,167	$	—	$	—	$	286,167
Short-term investments:
U.S. government treasury securities	551,539		—		—		551,539
Total financial assets	$	837,706	$	—	$	—	$	837,706

	Fair Value Measurement at January 31, 2020
	Level 1		Level 2		Level 3		Total
Financial Assets:
Cash and cash equivalents:
Money market funds	$	623,856	$	—	$	—	$	623,856
Short-term investments:
U.S. government treasury securities	280,326		—		—		280,326
Total financial assets	$	904,182	$	—	$	—	$	904,182