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Fair Value Measurements (Tables)
3 Months Ended
Apr. 30, 2020
Fair Value Disclosures [Abstract]  
Schedule of financial assets and liabilities measured at fair value on a recurring basis
The following tables present information about the Company’s financial assets and liabilities that have been measured at fair value on a recurring basis as of April 30, 2020 and January 31, 2020 and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):
 
Fair Value Measurement at April 30, 2020
 
Level 1
 
Level 2
 
Level 3
 
Total
Financial Assets:
 
 
 
 
 
 
 
Cash and cash equivalents:
 
 
 
 
 
 
 
Money market funds
$
631,466

 
$

 
$

 
$
631,466

Short-term investments:
 
 
 
 
 
 
 
U.S. government treasury securities
276,372

 

 

 
276,372

Total financial assets
$
907,838

 
$

 
$

 
$
907,838

 
Fair Value Measurement at January 31, 2020
 
Level 1
 
Level 2
 
Level 3
 
Total
Financial Assets:
 
 
 
 
 
 
 
Cash and cash equivalents:
 
 
 
 
 
 
 
Money market funds
$
623,856

 
$

 
$

 
$
623,856

Short-term investments:
 
 
 
 
 
 
 
U.S. government treasury securities
280,326

 

 

 
280,326

Total financial assets
$
904,182

 
$

 
$

 
$
904,182