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Fair Value Measurement
6 Months Ended
Jul. 31, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurement Fair Value Measurement
The following tables present the fair value hierarchy of our financial assets measured at fair value on a recurring basis as of July 31, 2022 and January 31, 2022 (in thousands): 
 As of July 31, 2022
 Level 1Level 2Total
Financial assets:   
Money market$1,058,074 $— $1,058,074 
Total cash equivalents1,058,074 — 1,058,074 
Commercial paper— 27,244 27,244 
Corporate bonds— 70,073 70,073 
Municipal bonds— 19,267 19,267 
Total marketable securities— 116,584 116,584 
Total$1,058,074 $116,584 $1,174,658 
 As of January 31, 2022
 Level 1Level 2Total
Financial assets:   
Money market$1,056,555 $— $1,056,555 
Total cash equivalents1,056,555 — 1,056,555 
Commercial paper— 15,343 15,343 
Corporate bonds— 91,432 91,432 
Municipal bonds— 9,165 9,165 
Total marketable securities— 115,940 115,940 
Total$1,056,555 $115,940 $1,172,495 
Our money market funds are classified within Level 1 of the fair value hierarchy because they are valued based on quoted market prices in active markets. We classify commercial paper, corporate bonds, and municipal bonds within Level 2 because they are valued using inputs other than quoted prices which are directly or indirectly observable in the market, including readily available pricing sources for the identical underlying security which may not be actively traded. None of our financial instruments were classified in the Level 3 category as of July 31, 2022 or January 31, 2022.