Property, Plant and Equipment - Aging of Capitalized Exploratory Well Costs (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($) well	Sep. 30, 2024 USD ($) well	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Aging of capitalized well costs:
Amount | $	$ 115,146	$ 51,099	$ 72,055	$ 49,118
No. of Wells | well	11	6
Zero to one year
Aging of capitalized well costs:
Amount | $	$ 17,562	$ 28,552
No. of Wells | well	5	3
One to two years
Aging of capitalized well costs:
Amount | $	$ 75,171	$ 0
No. of Wells | well	3	0
Two to three years
Aging of capitalized well costs:
Amount | $	$ 0	$ 0
No. of Wells | well	0	0
Three years or more
Aging of capitalized well costs:
Amount | $	$ 22,413	$ 22,547
No. of Wells | well	3	3