Fair Value Measurements (Tables)

6 Months Ended

Jul. 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 July 31, 2022
	Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Financial Assets:
Money market funds	$	521,527	$	521,527	$	—	$	—
Treasury bills	50		—		50		—
Commercial paper	670		—		670		—
U.S. government agency securities	49,197		—		49,197		—
Agency bonds	15,949		—		15,949		—
Cash equivalents	587,393		521,527		65,866		—
Commercial paper	64,596		—		64,596		—
Agency bonds	643,832		—		643,832		—
Corporate and other debt securities	408,465		—		408,465		—
U.S. government agency securities	3,384,243		—		3,384,243		—
Treasury bills	81,572		—		81,572		—
Marketable securities	4,582,708		—		4,582,708		—
Publicly held equity securities included in strategic investments	139,908		139,908		—		—
Privately held debt securities included in strategic investments	13,673		—		—		13,673
Certificates of deposit included in other assets, noncurrent	269		—		269		—
Total financial assets	$	5,323,951	$	661,435	$	4,648,843	$	13,673

	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