Investments (Tables)

9 Months Ended

Oct. 31, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Marketable Securities

As of October 31, 2023 and January 31, 2023, our marketable securities consisted of the following:

	As of October 31, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Commercial paper	$	56,098	$	—	$	—	$	56,098
Agency bonds	1,608,658		4		(11,879)		1,596,783
Corporate and other debt securities	590,977		41		(4,231)		586,787
U.S. government agency securities	2,731,636		19		(19,879)		2,711,776
Treasury bills	50,068		—		(5)		50,063
Marketable securities	$	5,037,437	$	64	$	(35,994)	$	5,001,507

	As of January 31, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Commercial paper	$	77,701	$	—	$	—	$	77,701
Agency bonds	823,027		63		(12,440)		810,650
Corporate and other debt securities	555,354		385		(4,845)		550,894
U.S. government agency securities	2,910,572		150		(49,507)		2,861,215
Treasury bills	25,404		1		(29)		25,376
Marketable securities	$	4,392,058	$	599	$	(66,821)	$	4,325,836

Schedule of Contractual Maturities of Marketable Securities

The following table presents the contractual maturities of our marketable securities as of October 31, 2023 and January 31, 2023:

	As of
	October 31, 2023		January 31, 2023
	(in thousands)
Less than one year	$	2,774,308	$	2,743,677
Due in one to five years	2,227,199		1,582,159
Total	$	5,001,507	$	4,325,836

Schedule of Strategic Investments

Strategic investments by form and measurement category as of October 31, 2023 were as follows:

	Measurement Category
	Fair Value		Measurement Alternative		Equity Method		Total
	(in thousands)
Equity securities	$	65,724	$	187,532	$	95,975	$	349,231
Debt securities	3,791		—		—		3,791
Strategic investments	$	69,515	$	187,532	$	95,975	$	353,022

Strategic investments by form and measurement category as of January 31, 2023 were as follows:

	Measurement Category
	Fair Value		Measurement Alternative		Equity Method		Total
	(in thousands)
Equity securities	$	171,975	$	118,763	$	93,854	$	384,592
Debt securities	14,400		—		—		14,400
Strategic investments	$	186,375	$	118,763	$	93,854	$	398,992