v3.22.2.2
Net Loss Per Share - Computation of Net Loss Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Oct. 31, 2022
Jul. 31, 2022
Apr. 30, 2022
Oct. 31, 2021
Jul. 31, 2021
Apr. 30, 2021
Oct. 31, 2022
Oct. 31, 2021
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                
Net loss $ (23,711) $ (29,139) $ (32,888) $ (28,513) $ (22,240) $ (18,104) $ (85,738) $ (68,857)
Weighted-average number of shares used in computing net loss per share, basic (shares) 34,392     32,363     33,893 31,758
Weighted-average number of shares used in computing net loss per share, diluted (shares) 34,392     32,363     33,893 31,758
Net loss per share, basic (in usd per share) $ (0.69)     $ (0.88)     $ (2.53) $ (2.17)
Net loss per share, diluted (in usd per share) $ (0.69)     $ (0.88)     $ (2.53) $ (2.17)
Class A Common Stock                
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                
Net loss $ (2,250)     $ (2,876)     $ (8,257) $ (7,077)
Weighted-average number of shares used in computing net loss per share, basic (shares) 3,264     3,264     3,264 3,264
Weighted-average number of shares used in computing net loss per share, diluted (shares) 3,264     3,264     3,264 3,264
Net loss per share, basic (in usd per share) $ (0.69)     $ (0.88)     $ (2.53) $ (2.17)
Net loss per share, diluted (in usd per share) $ (0.69)     $ (0.88)     $ (2.53) $ (2.17)
Class B Common Stock                
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                
Net loss $ (21,461)     $ (25,637)     $ (77,481) $ (61,780)
Weighted-average number of shares used in computing net loss per share, basic (shares) 31,128     29,099     30,629 28,494
Weighted-average number of shares used in computing net loss per share, diluted (shares) 31,128     29,099     30,629 28,494
Net loss per share, basic (in usd per share) $ (0.69)     $ (0.88)     $ (2.53) $ (2.17)
Net loss per share, diluted (in usd per share) $ (0.69)     $ (0.88)     $ (2.53) $ (2.17)