Cash and Cash Equivalents, Investments and Fair Value Measurements (Tables)

9 Months Ended

Oct. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets Measured on Recurring Basis

The following table summarizes information about our cash, cash equivalents, and investments by investment category (in thousands):

	As of October 31, 2022
	Fair Value Level	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Assets
Cash and cash equivalents:
Cash		$	37,776	$	—	$	—	$	37,776
Money market funds	Level 1	142,486		—		—		142,486
Corporate notes and bonds	Level 2	7,729		—		—		7,729
U.S. agency securities	Level 2	22,485		—		(4)		22,481
Total cash and cash equivalents		$	210,476	$	—	$	(4)	$	210,472
Short-term investments:								—
U.S. Treasury securities	Level 1	$	150,245	$	—	$	(1,043)	$	149,202
Commercial paper	Level 2	233,773		—		(1,753)		232,020
Corporate notes and bonds	Level 2	38,155		—		(252)		37,903
U.S. agency securities	Level 2	72,287		—		(600)		71,687
Total short-term investments		$	494,460	$	—	$	(3,648)	$	490,812
Long-term investments:
U.S. Treasury securities	Level 1	$	185,892	$	—	$	(3,012)	$	182,880
Commercial paper	Level 2	18,887		—		(302)		18,585
Corporate notes and bonds	Level 2	175,947		—		(2,951)		172,996
U.S. agency securities	Level 2	74,247		—		(986)		73,261
Total long-term investments		$	454,973	$	—	$	(7,251)	$	447,722
Total assets measured at fair value		$	1,159,909	$	—	$	(10,903)	$	1,149,006

The following table summarizes the respective fair value and the classification by level within the fair value hierarchy (in thousands):

	As of January 31, 2022
	Level 1		Level 2		Level 3		Total
Assets
Cash equivalents:
Money market funds	$	1,641,642	$	—	$	—	$	1,641,642
Short-term investments:
Certificates of deposit	—		374		—		374
Total assets measured and recorded at fair value	$	1,641,642	$	374	$	—	$	1,642,016