Property, Plant and Equipment - Net Changes in Capitalized Exploratory Well Costs (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2024 |
Jun. 30, 2023 |
|
| Movement in Property, Plant and Equipment [Roll Forward] | ||
| Beginning balance | $ 49,118 | $ 171,860 |
| Additions pending the determination of proved reserves | 20,391 | 47,733 |
| Capitalized exploratory well costs charged to expense | (26,471) | (26,188) |
| Ending balance | $ 43,038 | $ 193,405 |