Stock-based compensation - Additional Information (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) Instalment	Dec. 31, 2020 USD ($)	Dec. 31, 2018 shares	Jan. 01, 2023 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance	7,057,629
Proceeds from exercise of stock options | $	$ 2,175	$ 966	$ 11
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value of stock options granted | $ / shares	$ 19.39
Aggregate intrinsic value of stock options exercised | $	$ 21,200
Proceeds from exercise of stock options | $	2,200
Unrecognized stock-based compensation cost | $	$ 64,400
Weighted average period over which unrecognized compensation is expected to be recognized	2 years 6 months
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average period over which unrecognized compensation is expected to be recognized	6 months
Unrecognized stock-based compensation cost | $	$ 13,600
Purchase of common stock under ESPP(shares)				2,150,537
Number of Installments for Restricted Shares Vested | Instalment		48
Twenty Eighteen | Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance	6,885,653
2021 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance					3,086,541
Shares available for future grant	3,025,807
Purchase of common stock under ESPP(shares)	134,107
Stock available for issuance under ESPP	784,326
Number of RSUs, Granted	688,700
2021 Stock Incentive Plan | Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for future grant	688,700
Vesting period	4 years
ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Increase in common stock capital shares, reserved for future issuance					617,308