Commitments and contingencies - Changes in fair value of long-term portion of contingent consideration (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Other Commitments [Line Items]
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating Expenses.	Operating Expenses.
Contingent consideration - Long term portion | Series D Redeemable Convertible Preferred Stock
Other Commitments [Line Items]
Balance, beginning of period	$ 5,765	$ 6,039
Reclassification of FY payment to accrued expenses	(1,935)	(1,745)
Change in contingent consideration value	267	757
Balance, end of period	$ 4,097	$ 5,051