Corporate restructuring - Summary of Accrued Liability Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Beginning balance	$ 0
Total estimated expenses	8,614	$ 0	$ 0
Expenses paid from inception through December 31, 2023	(6,253)
Reversal of excess accrual through December 31, 2023	0
Ending balance	$ 2,361	$ 0