Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Cash Flow Information
Cash and cash equivalents	$ 1,625,495	$ 141,773	$ 142,698
Restricted cash (included in other assets)	$ 10,975	$ 8,923	$ 8,787
Restricted Cash, Statement of Financial Position [Extensible Enumeration]	Other Assets	Other Assets	Other Assets
Total	$ 1,636,470	$ 150,696	$ 151,485	$ 123,652
Interest, net of amounts capitalized	391,400	271,500	274,700
Interest capitalized	116,800	70,600	53,500
Capitalized employee expenses related to construction activities	99,200	86,100	71,200
Income taxes, net of refunds	88,800	41,700	29,900
Accrued construction related costs	$ 599,400	$ 417,100	$ 423,000