Investments (Tables)

12 Months Ended

Jan. 31, 2025

Investments, Debt and Equity Securities [Abstract]

Schedule of Marketable Securities

As of January 31, 2025 and 2024, our marketable securities consisted of the following: 

	As of January 31, 2025
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Commercial paper	$	20,841	$	—	$	—	$	20,841
Agency bonds	1,173,518		1,609		(643)		1,174,484
Corporate and other debt securities	719,145		2,069		(419)		720,795
U.S. government agency securities	4,412,730		8,449		(5,249)		4,415,930
Treasury bills	110,237		43		(1)		110,279
Marketable securities	$	6,436,471	$	12,170	$	(6,312)	$	6,442,329

	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 January 31, 2025 and 2024:

	As of January 31,
	2025		2024
	(in thousands)
Less than one year	$	3,534,014	$	2,883,598
Due in one to five years	2,908,315		2,520,635
Total	$	6,442,329	$	5,404,233

Schedule of Strategic Investments

Strategic investments by form and measurement category as of January 31, 2025 were as follows:

	Measurement Category
	Fair Value		Measurement Alternative		Equity Method		Total
	(in thousands)
Equity securities	$	35,280	$	452,160	$	99,591	$	587,031
Debt securities	4,450		—		—		4,450
Strategic investments	$	39,730	$	452,160	$	99,591	$	591,481

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