Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 137,342	$ 21,272	$ 35,617
State	2,392	2,854	1,950
Total current	139,734	24,126	37,567
Deferred:
Federal	(53,228)	37,273	23,693
State	24,023	15,513	13,567
Total deferred	(29,205)	52,786	37,260
Income tax expense/(benefit)	110,529	76,912	74,827
Arizona Public Service Company
Current:
Federal	165,653	26,405	103,349
State	26,054	1,027	161
Total current	191,707	27,432	103,510
Deferred:
Federal	(69,075)	44,922	(31,860)
State	4,361	21,830	19,150
Total deferred	(64,714)	66,752	(12,710)
Income tax expense/(benefit)	$ 126,993	$ 94,184	$ 90,800