Asset retirement obligations (Tables)

12 Months Ended

Dec. 31, 2025

Disclosure of Asset Retirement Obligations [abstract]

Schedule of Asset Retirement Obligations

	Turkiye		Canada		Greece		Total
At January 1, 2025	$	85,274	$	11,807	$	35,915	$	132,996
Accretion during the year	3,906		316		1,693		5,915
Revisions to estimate	(778)		3,729		7,446		10,397
Settlements	(2,672)		—		(3,679)		(6,351)
At December 31, 2025	$	85,730	$	15,852	$	41,375	$	142,957
Less: Current liability portion	(1,900)		(1,759)		(4,227)		(7,886)
Non-current liability portion	$	83,830	$	14,093	$	37,148	$	135,071
Estimated undiscounted amount	$	138,300	$	27,951	$	95,596	$	261,847

	Turkiye		Canada		Greece		Total
At January 1, 2024	$	76,357	$	15,308	$	37,444	$	129,109
Accretion during the year	2,963		355		1,551		4,869
Revisions to estimate	6,589		(3,856)		(27)		2,706
Settlements	(635)		—		(3,053)		(3,688)
At December 31, 2024	$	85,274	$	11,807	$	35,915	$	132,996
Less: Current liability portion	—		—		(5,071)		(5,071)
Non-current liability portion	$	85,274	$	11,807	$	30,844	$	127,925
Estimated undiscounted amount	$	157,040	$	27,740	$	67,837	$	252,617

Schedule of Present Value of Estimated Future Net Cash Outflows

The provision is calculated as the present value of estimated future net cash outflows based on the following key assumptions:

	Turkiye	Canada	Greece
	%	%	%
At December 31, 2025
Inflation rate	2.6 to 3.3	2.6	2.6 to 3.2
Discount rate	4.2	4.8	3.6 to 4.8
At December 31, 2024
Inflation rate	2.6 to 2.9	2.5	2.5 to 4.2
Discount rate	4.6	4.9	4.4 to 4.9