Stock based compensation - Reserved shares of common stock (Details) - 2021 Incentive Plan	Mar. 31, 2023 shares
Stock based compensation
Reserved shares of common stock for issuance	16,892,848
Options and RSUs
Stock based compensation
Options and RSUs issued and outstanding	10,915,052
Reserved shares of common stock for issuance	4,863,670
Employee stock purchase plan
Stock based compensation
Reserved shares of common stock for issuance	1,114,126