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Fair Value Measurements (Tables)
 9 Months Ended
Oct. 31, 2024
Fair Value Disclosures [Abstract]  
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis
The following table summarizes our financial assets that are measured at fair value on a recurring basis:
October 31, 2024
(in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Level 1:
Cash equivalents(1)
Money market funds$131,736 $— $— $131,736 
Level 2:
Cash equivalents(1)
Commercial paper1,982 — (1)1,981 
Available-for-sale securities
Commercial paper66,970 28 (16)66,982 
Corporate notes and bonds363,651 625 (416)363,860 
U.S. governmental securities13,485 2 (18)13,469 
Level 2 total446,088 655 (451)446,292 
Total$577,824 $655 $(451)$578,028 
January 31, 2024
(in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Level 1:
Cash equivalents(1)
Money market funds$298,517 $— $— $298,517 
Level 2:
Cash equivalents(1)
Commercial paper43,845 — (9)43,836 
U.S. government agency securities9,968 — (1)9,967 
Available-for-sale securities
Commercial paper42,958 2 (25)42,935 
Corporate notes and bonds299,166 262 (670)298,758 
U.S. governmental securities28,752 — (66)28,686 
Level 2 total424,689 264 (771)424,182 
Total$723,206 $264 $(771)$722,699 

(1) Included in “cash and cash equivalents” in our consolidated balance sheets as of October 31, 2024 and January 31, 2024, in addition to cash of $477.2 million and $444.8 million.
Schedule of Fair Value of Available-for-sale Marketable Securities by Remaining Contractual Maturities
The fair values of our available-for-sale securities as of October 31, 2024, by remaining contractual maturities, were as follows (in thousands):
Due in one year or less$331,506 
Due in one to two years112,805 
$444,311