Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities

v3.21.2
Marketable Securities
 9 Months Ended
Oct. 31, 2021
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities Marketable Securities
The following is a summary of our marketable securities (in thousands): 
As of October 31, 2021
Amortized Cost Gross
Unrealized
Gains		 Gross
Unrealized
Losses		 Estimated Fair Value
Commercial paper $ 11,997  $ —  $ —  $ 11,997 
Corporate bonds 96,549  —  (90) 96,459 
Municipal bonds 6,631  1  —  6,632 
Total marketable securities $ 115,177  $ 1  $ (90) $ 115,088 
As of January 31, 2021
Amortized Cost Gross
Unrealized
Gains		 Gross
Unrealized
Losses		 Estimated Fair Value
Commercial paper $ 23,171  $ —  $ —  $ 23,171 
Corporate bonds 79,674  7  (24) 79,657 
Total marketable securities $ 102,845  $ 7  $ (24) $ 102,828 
As of October 31, 2021, $13.1 million of our marketable securities had remaining contractual maturities of one year or more, and the remainder had contractual maturities of less than one year. As of January 31, 2021, the contractual maturities of all of our marketable securities were less than one year. To determine whether any decline in the fair value of our marketable securities is other-than temporary, we evaluate, among other factors, the duration and extent to which the fair value has been less than the carrying value and our intent and ability to retain the marketable securities for a period of time sufficient to allow for any anticipated recovery in fair value. Based on available evidence, we concluded that the gross unrealized losses on our marketable securities as of October 31, 2021 and January 31, 2021 are temporary in nature.