Fair value measurements and investments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Measurements, Recurring $ in Thousands	Dec. 31, 2022 USD ($)
Level 1
Liabilities
Contingent consideration	$ 0
Total	0
Level 2
Liabilities
Contingent consideration	0
Total	0
Level 3
Liabilities
Contingent consideration	1,043
Total	$ 1,043