XML 20 R11.htm IDEA: XBRL DOCUMENT v3.22.2.2
Cash and Cash Equivalents, Investments and Fair Value Measurements
9 Months Ended
Oct. 31, 2022
Fair Value Disclosures [Abstract]  
Cash and Cash Equivalents, Investments and Fair Value Measurements CASH AND CASH EQUIVALENTS, INVESTMENTS, AND FAIR VALUE MEASUREMENTS
The following table summarizes information about our cash, cash equivalents, and investments by investment category (in thousands):
As of October 31, 2022
Fair Value LevelAmortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Assets
Cash and cash equivalents:
Cash$37,776 $— $— $37,776 
Money market fundsLevel 1142,486 — — 142,486 
Corporate notes and bondsLevel 27,729 — — 7,729 
U.S. agency securitiesLevel 222,485 — (4)22,481 
Total cash and cash equivalents$210,476 $— $(4)$210,472 
Short-term investments:— 
U.S. Treasury securitiesLevel 1$150,245 $— $(1,043)$149,202 
Commercial paperLevel 2233,773 — (1,753)232,020 
Corporate notes and bondsLevel 238,155 — (252)37,903 
U.S. agency securitiesLevel 272,287 — (600)71,687 
      Total short-term investments$494,460 $— $(3,648)$490,812 
Long-term investments:
U.S. Treasury securitiesLevel 1$185,892 $— $(3,012)$182,880 
Commercial paperLevel 218,887 — (302)18,585 
Corporate notes and bondsLevel 2175,947 — (2,951)172,996 
U.S. agency securitiesLevel 274,247 — (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 1Level 2Level 3Total
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 
There were no transfers between the levels of the fair value hierarchy during the three and nine months ended October 31, 2022 and 2021.
As of October 31, 2022, we determined that the declines in the market value of our investment portfolio were not driven by credit related factors. During the three and nine months ended October 31, 2022 and 2021, we did not recognize any losses on our investments due to credit related factors. As of October 31, 2022, no unrealized losses were in a continuous unrealized loss position for more than twelve months.