Consolidation and Nature of Operations (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash paid (received) during the period for:
Income taxes, net of refunds	$ (1,746)	$ (788)
Interest, net of amounts capitalized	120,359	112,010
Significant non-cash investing and financing activities:
Accrued capital expenditures	106,033	105,515
Right-of-use operating lease assets obtained in exchange for operating lease liabilities	11,101	248,694
Dividends accrued but not yet paid	96,081	93,610
APS
Cash paid (received) during the period for:
Income taxes, net of refunds	(25)	3,317
Interest, net of amounts capitalized	114,069	107,044
Significant non-cash investing and financing activities:
Accrued capital expenditures	106,033	105,515
Right-of-use operating lease assets obtained in exchange for operating lease liabilities	7,512	248,694
Dividends accrued but not yet paid	$ 96,000	$ 93,500