Income taxes - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Effective income tax rate, percent	(4.28%)	(1.10%)	(3.10%)	(1.20%)