Investments (Tables)

6 Months Ended

Jul. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Marketable Securities

As of July 31, 2024 and January 31, 2024, our marketable securities consisted of the following:

	As of July 31, 2024
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Commercial paper	$	19,636	$	—	$	—	$	19,636
Agency bonds	1,770,254		1,049		(2,591)		1,768,712
Corporate and other debt securities	711,321		1,434		(532)		712,223
U.S. government agency securities	3,356,712		5,993		(3,146)		3,359,559
Treasury bills	120,449		13		(17)		120,445
Marketable securities	$	5,978,372	$	8,489	$	(6,286)	$	5,980,575

	As of January 31, 2024
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Commercial paper	$	41,564	$	—	$	—	$	41,564
Agency bonds	1,667,601		2,426		(3,344)		1,666,683
Corporate and other debt securities	663,122		1,161		(1,124)		663,159
U.S. government agency securities	3,003,224		7,859		(6,241)		3,004,842
Treasury bills	27,992		—		(7)		27,985
Marketable securities	$	5,403,503	$	11,446	$	(10,716)	$	5,404,233

Schedule of Contractual Maturities of Marketable Securities

The following table presents the contractual maturities of our marketable securities as of July 31, 2024 and January 31, 2024:

	As of
	July 31, 2024		January 31, 2024
	(in thousands)
Less than one year	$	3,268,071	$	2,883,598
Due in one to five years	2,712,504		2,520,635
Total	$	5,980,575	$	5,404,233

Schedule of Strategic Investments

Strategic investments by form and measurement category as of July 31, 2024 were as follows:

	Measurement Category
	Fair Value		Measurement Alternative		Equity Method		Total
	(in thousands)
Equity securities	$	26,880	$	309,650	$	97,596	$	434,126
Debt securities	4,403		—		—		4,403
Strategic investments	$	31,283	$	309,650	$	97,596	$	438,529

Strategic investments by form and measurement category as of January 31, 2024 were as follows:

	Measurement Category
	Fair Value		Measurement Alternative		Equity Method		Total
	(in thousands)
Equity securities	$	23,160	$	285,509	$	96,725	$	405,394
Debt securities	3,828		—		—		3,828
Strategic investments	$	26,988	$	285,509	$	96,725	$	409,222