Property and Equipment and Intangible Assets - Asset retirement obligations (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2024 |
Jun. 30, 2023 |
Jun. 30, 2024 |
Jun. 30, 2023 |
Dec. 31, 2023 |
|
| Activity relating to our asset retirement obligations | |||||
| Balance at beginning of period | $ 289,059 | $ 218,795 | $ 278,287 | $ 183,135 | |
| Liabilities incurred | 4,651 | 22,797 | 8,959 | 54,351 | |
| Accretion expense | 6,765 | 5,064 | 13,229 | 9,170 | |
| Balance at end of period | 300,475 | 246,656 | 300,475 | 246,656 | |
| Total | 300,475 | 246,656 | 300,475 | 246,656 | $ 278,287 |
| Corresponding assets, net of accumulated depreciation, related to asset retirement obligations | 215,000 | 215,000 | $ 217,000 | ||
| Other long-term liabilities | |||||
| Activity relating to our asset retirement obligations | |||||
| Balance at end of period | 300,475 | 246,656 | 300,475 | 246,656 | |
| Total | $ 300,475 | $ 246,656 | $ 300,475 | $ 246,656 | |