Other Income and Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Other income:
Interest income	$ 7,560	$ 6,026
Gain on sale of BCE (Note 14)	22,988	0
Miscellaneous	59	51
Total other income	30,607	6,077
Other expense:
Non-operating costs	(6,150)	(2,640)
Investment losses — net	(777)	(1,061)
Miscellaneous	(640)	(430)
Total other expense	(7,567)	(4,131)
APS
Other income:
Interest income	6,796	5,024
Miscellaneous	59	51
Total other income	6,855	5,075
Other expense:
Non-operating costs	(2,255)	(2,188)
Miscellaneous	(639)	(429)
Total other expense	$ (2,894)	$ (2,617)