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Net Loss per Share Attributable to Common Stockholders
 12 Months Ended
Jan. 31, 2021
Earnings Per Share [Abstract]  
Net Loss per Share Attributable to Common Stockholders Net Loss per Share Attributable to Common Stockholders
The following table presents the calculation of basic and diluted net loss per share attributable to common stockholders for periods presented:
Year Ended January 31,
(in thousands, except per share data)202120202019
Numerator:
Net loss$(243,267)$(208,359)$(426,458)
Less: preferred stock accretion— — (353)
Net loss attributable to common stockholders$(243,267)$(208,359)$(426,811)
Denominator:
Weighted-average common shares outstanding185,760 176,704 135,163 
Net loss per share attributable to common stockholders:
Basic and diluted$(1.31)$(1.18)$(3.16)

Outstanding potentially dilutive securities that were excluded from the diluted per share calculations because they would have been antidilutive are as follows:
January 31,
(in thousands)202120202019
RSUs10,586 13,555 16,568 
Stock options4,798 6,882 13,648 
ESPP130 274 295 
Convertible senior notes3,250 788 — 
Total antidilutive securities18,764 21,499 30,511