Income taxes - Pre-tax Net Loss and Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Loss before income taxes	$ (11,357)	$ (31,542)	$ (18,426)	$ (42,251)
Provision (benefit) for income taxes	$ 1,333	$ 22,158	$ (15,996)	$ 14,551
Effective tax rate (percent)	(11.70%)	(70.30%)	86.80%	(34.40%)