CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Oct. 31, 2021	Jan. 31, 2021
Allowance for doubtful accounts	$ 396	$ 193
Class A common stock
Common stock, par value (in usd per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	800,000,000	800,000,000
Common stock, shares issued (in shares)	138,914,395	137,062,817
Common stock, shares outstanding (in shares)	138,914,395	137,062,817
Class B common stock
Common stock, par value (in usd per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	190,000,000	190,000,000
Common stock, shares issued (in shares)	14,758,023	14,993,991
Common stock, shares outstanding (in shares)	14,758,023	14,993,991