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Fair Value Measurements (Tables)
 6 Months Ended
Jul. 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:
July 31, 2024
(in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Level 1:
Cash equivalents(1)
Money market funds$119,053 $— $— $119,053 
Level 2:
Cash equivalents(1)
Commercial paper17,933 — (4)17,929 
Available-for-sale securities
Commercial paper87,595 3 (68)87,530 
Corporate notes and bonds306,644 168 (436)306,376 
U.S. governmental securities27,959 — (39)27,920 
Level 2 total440,131 171 (547)439,755 
Total$559,184 $171 $(547)$558,808 
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 July 31, 2024 and January 31, 2024, in addition to cash of $482.1 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 July 31, 2024, by remaining contractual maturities, were as follows (in thousands):
Due in one year or less$319,289 
Due in one to two years102,537 
$421,826