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Property and Equipment and Intangible Assets - Asset retirement obligations (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Activity relating to our asset retirement obligations          
Balance at beginning of period $ 338,506 $ 289,059 $ 327,031 $ 278,287  
Liabilities incurred 1,188 4,651 4,885 8,959  
Accretion expense 8,026 6,765 15,804 13,229  
Balance at end of period 347,720 $ 300,475 347,720 $ 300,475  
Corresponding assets, net of accumulated depreciation, related to asset retirement obligations $ 209,000   $ 209,000   $ 216,000