Marketable Securities (Tables)

9 Months Ended

Oct. 31, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Marketable Securities

The following is a summary of our marketable securities (in thousands): 

	As of October 31, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Commercial paper	$	23,853	$	—	$	—	$	23,853
Treasury bills and U.S. government securities	602,927		—		(150)		602,777
Corporate bonds	5,625		—		(14)		5,611
Municipal bonds	1,000		—		(2)		998
Agency bonds	181,054		—		(196)		180,858
Total marketable securities	$	814,459	$	—	$	(362)	$	814,097

	As of January 31, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Commercial paper	$	62,470	$	—	$	—	$	62,470
Treasury bills and U.S. government securities (1)	234,848		—		(308)		234,540
Corporate bonds	46,684		—		(198)		46,486
Municipal bonds	6,374		—		(66)		6,308
Agency bonds	7,959		—		(47)		7,912
Total marketable securities	$	358,335	$	—	$	(619)	$	357,716
(1) Treasury bills with both amortized cost and estimated fair value of $10.0 million are included in cash and cash equivalents due to their original maturity of three months or less.