Employee benefit plan - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jul. 31, 2021	Dec. 31, 2021
Defined Benefit Plans And Other Postretirement Benefit Plans Disclosures [Abstract]
Percentage of eligible compensation, contributed by eligible participating employees	2.00%
Employer matching contributions		25.00%
Defined contribution, net		$ 228,000