Net Loss Per Share Attributable To Common Stockholders - Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023
Numerator:
Net loss	$ (70,105)	$ (106,869)
Denominator:
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders, basic (in shares)	309,547,693	288,300,705
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders, diluted (in shares)	309,547,693	288,300,705
Net loss per share attributable to Class A and Class B common stockholders, basic (in USD per share)	$ (0.23)	$ (0.37)
Net loss per share attributable to Class A and Class B common stockholders, diluted (in USD per share)	$ (0.23)	$ (0.37)