Income taxes - Schedule of reconciliation of the statutory corporate income tax rate to the effective tax rate (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory rate applied to pre-tax income:	21.00%	21.00%	21.00%
Foreign rate differential	5.70%	12.00%	8.50%
Domestic non-controlled interest/ domestic non-taxable income	(15.90%)	(20.10%)	(20.90%)
Early extinguishment of lease liability	0.00%	4.20%	0.00%
Permanent items	1.80%	(4.00%)	(2.20%)
Withholding taxes	11.50%	13.70%	22.90%
Uncertain tax positions	2.60%	(1.60%)	2.80%
Audit settlement	0.00%	0.00%	2.40%
Foreign tax credit	(5.10%)	(2.80%)	0.00%
Gain on tax liquidation	0.00%	1.70%	0.00%
Valuation Allowance	1.50%	0.30%	(0.70%)
Other	(2.30%)	1.70%	(0.10%)
Effective tax rate	20.80%	26.10%	33.90%