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Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Supplemental Cash Flow Information        
Cash and cash equivalents $ 124,519   $ 141,773  
Restricted cash (included in other assets) $ 10,128   $ 8,923  
Restricted Cash, Statement of Financial Position [Extensible Enumeration] Other Assets   Other Assets  
Total $ 134,647 $ 109,221 $ 150,696 $ 151,485
Interest, net of amounts capitalized 190,900 144,100    
Income taxes, net of refunds 22,800 16,400    
Accrued construction related costs $ 653,000 $ 469,600