Revenues (Tables)

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

The following tables disaggregate revenues by major source, timing of revenue recognition, and segment:

	Three months ended March 31, 2023
(in thousands)	Electric  utility		Bank		Other		Total
Revenues from contracts with customers
Electric energy sales - residential	$	255,550	$	—	$	—	$	255,550
Electric energy sales - commercial	254,470		—		—		254,470
Electric energy sales - large light and power	290,978		—		—		290,978
Electric energy sales - other	5,457		—		—		5,457
Bank fees	—		12,022		—		12,022
Other sales	—		—		3,907		3,907
Total revenues from contracts with customers	806,455		12,022		3,907		822,384
Revenues from other sources
Regulatory revenue	$	15,604	$	—	$	—	$	15,604
Bank interest and dividend income	—		79,479		—		79,479
Other bank noninterest income	—		2,356		—		2,356
Other	8,302		—		112		8,414
Total revenues from other sources	23,906		81,835		112		105,853
Total revenues	$	830,361	$	93,857	$	4,019	$	928,237
Timing of revenue recognition
Services/goods transferred at a point in time	$	—	$	12,022	$	—	$	12,022
Services/goods transferred over time	806,455		—		3,907		810,362
Total revenues from contracts with customers	$	806,455	$	12,022	$	3,907	$	822,384

	Three months ended March 31, 2022
(in thousands)	Electric  utility		Bank		Other		Total
Revenues from contracts with customers
Electric energy sales - residential	$	224,574	$	—	$	—	$	224,574
Electric energy sales - commercial	219,597		—		—		219,597
Electric energy sales - large light and power	241,123		—		—		241,123
Electric energy sales - other	1,426		—		—		1,426
Bank fees	—		12,996		—		12,996
Other sales	—		—		1,115		1,115
Total revenues from contracts with customers	686,720		12,996		1,115		700,831
Revenues from other sources
Regulatory revenue	12,886		—		—		12,886
Bank interest and dividend income	—		59,989		—		59,989
Other bank noninterest income	—		2,130		—		2,130
Other	9,186		—		46		9,232
Total revenues from other sources	22,072		62,119		46		84,237
Total revenues	$	708,792	$	75,115	$	1,161	$	785,068
Timing of revenue recognition
Services/goods transferred at a point in time	$	—	$	12,996	$	—	$	12,996
Services/goods transferred over time	686,720		—		1,115		687,835
Total revenues from contracts with customers	$	686,720	$	12,996	$	1,115	$	700,831