Fair Value Measurements (Tables)

3 Months Ended

Apr. 30, 2022

Fair Value Disclosures [Abstract]

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, 2022
	Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Financial Assets:
Money market funds	$	1,054,691	$	1,054,691	$	—	$	—
Treasury bills	92,477		—		92,477		—
Corporate debt securities	783		—		783		—
U.S. government agency securities	4,006		—		4,006		—
Cash equivalents	1,151,957		1,054,691		97,266		—
Commercial paper	34,881		—		34,881		—
Agency bonds	594,397		—		594,397		—
Corporate and other debt securities	285,251		—		285,251		—
U.S. government agency securities	3,146,058		—		3,146,058		—
Treasury bills	258,387		—		258,387		—
Marketable securities	4,318,974		—		4,318,974		—
Publicly held equity securities included in strategic investments	133,013		133,013		—		—
Privately held debt securities included in strategic investments	14,344		—		—		14,344
Certificates of deposit included in other assets, noncurrent	274		—		274		—
Total financial assets	$	5,618,562	$	1,187,704	$	4,416,514	$	14,344

	As of January 31, 2022
	Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Financial Assets:
Money market funds	$	688,722	$	688,722	$	—	$	—
Treasury bills	107,496		—		107,496		—
Corporate debt securities	749		—		749		—
Cash equivalents	796,967		688,722		108,245		—
Commercial paper	28,723		—		28,723		—
Agency bonds	629,609		—		629,609		—
Corporate and other debt securities	280,927		—		280,927		—
U.S. government agency securities	3,027,509		—		3,027,509		—
Treasury bills	389,678		—		389,678		—
Marketable securities	4,356,446		—		4,356,446		—
Certificates of deposit included in other assets, noncurrent	297		—		297		—
Publicly held equity securities included in strategic investments	168,784		168,784		—		—
Privately held debt securities included in strategic investments	14,231		—		—		14,231
Total financial assets	$	5,336,725	$	857,506	$	4,464,988	$	14,231