Other Income and Other Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other income:
Interest income	$ 24,322	$ 27,242	$ 7,326
Gain on sale of BCE (Note 20)	22,988	6,205	0
Miscellaneous	1,304	219	590
Total other income	48,614	33,666	7,916
Other expense:
Non-operating costs	(27,370)	(15,260)	(18,619)
Investment losses — net	(1,418)	(3,402)	(20,537)
Miscellaneous	(5,348)	(6,394)	(13,229)
Total other expense	(34,136)	(25,056)	(52,385)
Arizona Public Service Company
Other income:
Interest income	21,088	26,853	5,332
Miscellaneous	6	219	556
Total other income	21,094	27,072	5,888
Other expense:
Non-operating costs	(26,588)	(14,070)	(15,579)
Miscellaneous	(3,110)	(4,194)	(10,529)
Total other expense	$ (29,698)	$ (18,264)	$ (26,108)