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

6 Months Ended

Jul. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets Measured on Recurring Basis

The following tables summarizes information about our cash, cash equivalents, and investments by investment category as of July 31, 2023 and January 31, 2023 (in thousands):

	As of July 31, 2023
	Fair Value Level	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Assets
Cash and cash equivalents:
Cash	Level 1	$	36,995	$	—	$	—	$	36,995
Money market funds	Level 1	75,994		—		—		75,994
U.S. Treasury securities	Level 1	20,080		—		(4)		20,076
Total cash and cash equivalents		$	133,069	$	—	$	(4)	$	133,065
Short-term investments:
U.S. Treasury securities	Level 1	$	231,728	$	—	$	(2,002)	$	229,726
Commercial paper	Level 2	74,731		—		(80)		74,651
Corporate notes and bonds	Level 2	191,737		—		(2,060)		189,677
U.S. agency securities	Level 2	105,285		1		(809)		104,477
Total short-term investments		$	603,481	$	1	$	(4,951)	$	598,531
Long-term investments:
U.S. Treasury securities	Level 1	$	97,724	$	—	$	(1,163)	$	96,561
Corporate notes and bonds	Level 2	152,734		—		(1,599)		151,135
U.S. agency securities	Level 2	150,388		3		(1,709)		148,682
Total long-term investments		$	400,846	$	3	$	(4,471)	$	396,378
Total assets measured at fair value		$	1,137,396	$	4	$	(9,426)	$	1,127,974

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

	As of January 31, 2023
	Fair Value Level	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Assets
Cash and cash equivalents:
Cash	Level 1	$	35,055	$	—	$	—	$	35,055
Money market funds	Level 1	102,886		—		—		102,886
Total cash and cash equivalents		$	137,941	$	—	$	—	$	137,941
Short-term investments:
U.S. Treasury securities	Level 1	$	144,392	$	1	$	(501)	$	143,892
Commercial paper	Level 2	230,305		30		(667)		229,668
Corporate notes and bonds	Level 2	38,443		15		(148)		38,310
U.S. agency securities	Level 2	74,060		3		(349)		73,714
Total short-term investments		$	487,200	$	49	$	(1,665)	$	485,584
Long-term investments:
U.S. Treasury securities	Level 1	$	192,337	$	—	$	(2,460)	$	189,877
Corporate notes and bonds	Level 2	233,946		178		(2,029)		232,095
U.S. agency securities	Level 2	101,844		27		(921)		100,950
Total long-term investments		$	528,127	$	205	$	(5,410)	$	522,922
Total assets measured at fair value		$	1,153,268	$	254	$	(7,075)	$	1,146,447