Fair Value Measurements
3 Months Ended
Apr. 30, 2019
Fair Value Disclosures [Abstract]  
Fair Value Measurements
Fair Value Measurements
The following tables present information about the Company’s financial assets that have been measured at fair value on a recurring basis as of April 30, 2019 and January 31, 2019, and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):
 
Fair Value Measurement at April 30, 2019
 
Level 1
 
Level 2
 
Level 3
 
Total
Financial Assets:
 
 
 
 
 
 
 
Cash and cash equivalents:
 
 
 
 
 
 
 
Money market funds
$
50,356

 
$

 
$

 
$
50,356

Short-term investments:
 
 
 
 
 
 
 
U.S. government treasury securities
318,346

 

 

 
318,346

Total financial assets
$
368,702

 
$

 
$

 
$
368,702

 
Fair Value Measurement at January 31, 2019
 
Level 1
 
Level 2
 
Level 3
 
Total
Financial Assets:
 
 
 
 
 
 
 
Cash and cash equivalents:
 
 
 
 
 
 
 
Money market funds
$
88,015

 
$

 
$

 
$
88,015

Short-term investments:
 
 
 
 
 
 
 
U.S. government treasury securities
318,139

 

 

 
318,139

Total financial assets
$
406,154

 
$

 
$

 
$
406,154


The Company utilized the market approach and Level 1 valuation inputs to value its money market mutual funds and U.S. government treasury securities because published net asset values were readily available. As of April 30, 2019 and January 31, 2019, gross unrealized gains and unrealized losses for cash equivalents and short-term investments were not material, and the contractual maturity of all marketable securities was less than one year.
In addition to its cash, cash equivalents and short-term investments, the Company measures the fair value of its outstanding Notes (as defined below) on a quarterly basis for disclosure purposes. The Company considers the fair value of the Notes at April 30, 2019 to be a Level 2 measurement due to limited trading activity of the Notes. Refer to Note 4, Convertible Senior Notes, to the condensed consolidated financial statements for further details.