Fair Value Measurements (Tables)

9 Months Ended

Oct. 31, 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 October 31, 2022
	Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Financial Assets:
Money market funds	$	737,461	$	737,461	$	—	$	—
Treasury bills	24,972		—		24,972		—
Corporate debt securities	557		—		557		—
Agency bonds	3,613		—		3,613		—
Cash equivalents	766,603		737,461		29,142		—
Commercial paper	40,432		—		40,432		—
Agency bonds	626,144		—		626,144		—
Corporate and other debt securities	387,262		—		387,262		—
U.S. government agency securities	2,958,557		—		2,958,557		—
Treasury bills	56,423		—		56,423		—
Marketable securities	4,068,818		—		4,068,818		—
Certificates of deposit included in other assets, noncurrent	246		—		246		—
Publicly held equity securities included in strategic investments	132,405		132,405		—		—
Privately held debt securities included in strategic investments	14,284		—		—		14,284
Total financial assets	$	4,982,356	$	869,866	$	4,098,206	$	14,284

	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