Revenues (Tables)

9 Months Ended

Sep. 30, 2019

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 September 30, 2019										Nine months ended September 30, 2019
(in thousands)	Electric  utility			Bank		Other		Total			Electric  utility			Bank		Other		Total
Revenues from contracts with customers
Electric energy sales - residential	$	230,051		$	—	$	—	$	230,051		$	601,664		$	—	$	—	$	601,664
Electric energy sales - commercial	230,411			—		—		230,411			635,097			—		—		635,097
Electric energy sales - large light and power	248,457			—		—		248,457			679,252			—		—		679,252
Electric energy sales - other	4,081			—		—		4,081			11,933			—		—		11,933
Bank fees	—			12,111		—		12,111			—			34,976		—		34,976
Total revenues from contracts with customers	713,000			12,111		—		725,111			1,927,946			34,976		—		1,962,922
Revenues from other sources
Regulatory revenue	(30,800		)	—		—		(30,800		)	(44,953		)	—		—		(44,953		)
Bank interest and dividend income	—			66,859		—		66,859			—			201,502		—		201,502
Other bank noninterest income	—			4,231		—		4,231			—			11,462		—		11,462
Other	6,130			—		4		6,134			17,616			—		86		17,702
Total revenues from other sources	(24,670		)	71,090		4		46,424			(27,337		)	212,964		86		185,713
Total revenues	$	688,330		$	83,201	$	4	$	771,535		$	1,900,609		$	247,940	$	86	$	2,148,635
Timing of revenue recognition
Services/goods transferred at a point in time	$	—		$	12,111	$	—	$	12,111		$	—		$	34,976	$	—	$	34,976
Services/goods transferred over time	713,000			—		—		713,000			1,927,946			—		—		1,927,946
Total revenues from contracts with customers	$	713,000		$	12,111	$	—	$	725,111		$	1,927,946		$	34,976	$	—	$	1,962,922

	Three months ended September 30, 2018										Nine months ended September 30, 2018
(in thousands)	Electric  utility			Bank		Other		Total			Electric  utility			Bank		Other		Total
Revenues from contracts with customers
Electric energy sales - residential	$	222,196		$	—	$	—	$	222,196		$	586,002		$	—	$	—	$	586,002
Electric energy sales - commercial	229,476			—		—		229,476			624,643			—		—		624,643
Electric energy sales - large light and power	242,457			—		—		242,457			649,454			—		—		649,454
Electric energy sales - other	4,296			—		—		4,296			12,324			—		—		12,324
Bank fees	—			11,743		—		11,743			—			34,797		—		34,797
Total revenues from contracts with customers	698,425			11,743		—		710,168			1,872,423			34,797		—		1,907,220
Revenues from other sources
Regulatory revenue	(13,572		)	—		—		(13,572		)	(13,465		)	—		—		(13,465		)
Bank interest and dividend income	—			65,185		—		65,185			—			190,448		—		190,448
Other bank noninterest income	—			3,568		—		3,568			—			7,774		—		7,774
Other	2,556			—		143		2,699			7,004			—		218		7,222
Total revenues from other sources	(11,016		)	68,753		143		57,880			(6,461		)	198,222		218		191,979
Total revenues	$	687,409		$	80,496	$	143	$	768,048		$	1,865,962		$	233,019	$	218	$	2,099,199
Timing of revenue recognition
Services/goods transferred at a point in time	$	832		$	11,743	$	—	$	12,575		$	2,380		$	34,797	$	—	$	37,177
Services/goods transferred over time	697,593			—		—		697,593			1,870,043			—		—		1,870,043
Total revenues from contracts with customers	$	698,425		$	11,743	$	—	$	710,168		$	1,872,423		$	34,797	$	—	$	1,907,220