Property and Equipment and Intangible Assets - Asset retirement obligations (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2024 |
Mar. 31, 2023 |
Dec. 31, 2023 |
|
| Activity relating to our asset retirement obligations | |||
| Balance at beginning of period | $ 278,287 | $ 183,135 | |
| Liabilities incurred | 4,308 | 31,554 | |
| Accretion expense | 6,464 | 4,106 | |
| Balance at end of period | 289,059 | 218,795 | |
| Total | 289,059 | 218,795 | $ 278,287 |
| Corresponding assets, net of accumulated depreciation, related to asset retirement obligations | 216,000 | $ 217,000 | |
| Other long-term liabilities | |||
| Activity relating to our asset retirement obligations | |||
| Balance at end of period | 289,059 | 218,795 | |
| Total | $ 289,059 | $ 218,795 | |