v3.20.2
Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Jul. 31, 2020
Jul. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net loss attributable to common stockholders $ (29,874) $ (51,889) $ (49,096) $ (77,866)
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders, basic and diluted (in shares) 216,695,000 130,091,000 214,932,000 89,335,000
Net loss per share attributable to Class A and Class B common stockholders, basic and diluted (in usd per share) $ (0.14) $ (0.40) $ (0.23) $ (0.87)
Class A common stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net loss attributable to common stockholders $ (23,059) $ (4,308) $ (33,407) $ (4,784)
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders, basic and diluted (in shares) 167,262,000 10,800,000 146,249,000 5,489,000
Net loss per share attributable to Class A and Class B common stockholders, basic and diluted (in usd per share) $ (0.14) $ (0.40) $ (0.23) $ (0.87)
Class B common stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net loss attributable to common stockholders $ (6,815) $ (47,581) $ (15,689) $ (73,082)
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders, basic and diluted (in shares) 49,433,000 119,291,000 68,683,000 83,846,000
Net loss per share attributable to Class A and Class B common stockholders, basic and diluted (in usd per share) $ (0.14) $ (0.40) $ (0.23) $ (0.87)