Business segment data (Tables)

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

Information on the Company's businesses

Information on the Company's segments was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(In thousands)
External operating revenues:
Regulated operations:
Electric	$	87,447	$	89,845	$	249,793	$	263,423
Natural gas distribution	94,703		93,642		562,641		569,656
Pipeline	27,965		25,957		57,717		52,230
	210,115		209,444		870,151		885,309
Non-regulated operations:
Pipeline	4,103		6,576		12,664		17,597
Construction materials and contracting	822,439		869,376		1,705,629		1,692,287
Construction services	550,608		478,381		1,559,217		1,363,305
Other	24		22		(70)		65
	1,377,174		1,354,355		3,277,440		3,073,254
Total external operating revenues	$	1,587,289	$	1,563,799	$	4,147,591	$	3,958,563

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(In thousands)
Intersegment operating revenues:
Regulated operations:
Electric	$	195	$	—	$	586	$	—
Natural gas distribution	185		—		555		—
Pipeline	3,543		3,750		36,583		35,098
	3,923		3,750		37,724		35,098
Non-regulated operations:
Pipeline	79		81		237		200
Construction materials and contracting	110		124		262		388
Construction services	425		1,226		3,674		2,076
Other	3,006		2,862		8,952		13,566
	3,620		4,293		13,125		16,230
Intersegment eliminations	(7,543)		(8,043)		(50,849)		(51,328)
Total intersegment operating revenues	$	—	$	—	$	—	$	—
Operating income (loss):
Electric	$	21,159	$	21,930	$	48,827	$	49,708
Natural gas distribution	(18,393)		(15,565)		32,285		32,132
Pipeline	11,762		11,416		35,406		32,017
Construction materials and contracting	148,522		143,024		179,994		147,622
Construction services	40,507		29,950		102,185		89,381
Other	154		(1,285)		339		140
Total operating income	$	203,711	$	189,470	$	399,036	$	351,000
Net income (loss):
Regulated operations:
Electric	$	16,787	$	16,291	$	40,314	$	39,267
Natural gas distribution	(17,614)		(15,625)		13,795		14,623
Pipeline	7,812		6,933		23,882		20,316
	6,985		7,599		77,991		74,206
Non-regulated operations:
Pipeline	189		801		444		1,380
Construction materials and contracting	107,307		102,611		122,113		97,328
Construction services	29,789		21,113		74,544		63,982
Other	8,745		4,004		3,303		3,466
	146,030		128,529		200,404		166,156
Income from continuing operations	153,015		136,128		278,395		240,362
Income (loss) from discontinued operations, net of tax	63		1,509		(484)		26
Net income	$	153,078	$	137,637	$	277,911	$	240,388