Net loss per share - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net loss	$ (24,200)	$ (25,629)
Denominator:
Weighted‑average shares used to compute net loss per share, basic (in shares)	123,422,066	119,594,341
Weighted‑average shares used to compute net loss per share, diluted (in shares)	123,422,066	119,594,341
Basic net loss per share (in dollars per share)	$ (0.20)	$ (0.21)
Diluted net loss per share (in dollars per share)	$ (0.20)	$ (0.21)