Fair Value Measurements (Tables)

3 Months Ended

Apr. 30, 2021

Schedule of Financial Instruments Measured at Fair Value on Recurring Basis

The following tables present information about our financial instruments that are measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value:


	As of April 30, 2021
	Fair Value		Level 1		Level 2		Level 3

	(in thousands)
Financial Assets:
Money market funds	$	631,128	$	631,128	$	—	$	—
Treasury bills	172,565		—		172,565		—


Cash equivalents	803,693		631,128		172,565		—
Commercial paper	57,707		—		57,707		—
Agency bonds	515,157		—		515,157		—
Corporate and other debt securities	470,428		—		470,428		—
U.S. government agency securities	1,876,520		—		1,876,520		—
Treasury bills	212,497		—		212,497		—
Marketable securities	3,132,309		—		3,132,309		—
Certificate of deposit included in prepaid expenses and other current assets	100		—		100		—

Certificates of deposit included in other assets, noncurrent	2,243		—		2,243		—

Convertible notes included in other assets, noncurrent	11,682		—		—		11,682
Total financial assets	$	3,950,027	$	631,128	$	3,307,217	$	11,682


	As of January 31, 2021
	Fair Value		Level 1		Level 2		Level 3

	(in thousands)
Financial Assets:
Money market funds	$	958,357	$	958,357	$	—	$	—
Treasury bills	618,498		—		618,498		—

Cash equivalents	1,576,855		958,357		618,498		—
Commercial paper	26,222		—		26,222		—
Agency bonds	461,365		—		461,365		—
Corporate and other debt securities	466,256		—		466,256		—
U.S. government agency securities	834,665		—		834,665		—
Treasury bills	215,902		—		215,902		—
Marketable securities	2,004,410		—		2,004,410		—
Certificate of deposit included in prepaid expenses and other current assets	100		—		100		—

Certificates of deposit included in other assets, noncurrent	2,238		—		2,238		—
Convertible note included in other assets, noncurrent	5,130		—		—		5,130
Total financial assets	$	3,588,733	$	958,357	$	2,625,246	$	5,130