Business segment data (Tables)

9 Months Ended

Sep. 30, 2021

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,
	2021		2020		2021		2020
	(In thousands)
External operating revenues:
Regulated operations:
Electric	$	98,930	$	87,447	$	267,254	$	249,793
Natural gas distribution	110,378		94,703		614,373		562,641
Pipeline	27,757		27,965		58,390		57,717
	237,065		210,115		940,017		870,151
Non-regulated operations:
Pipeline	3,211		4,103		10,263		12,664
Construction materials and contracting	831,189		822,439		1,730,521		1,705,629
Construction services	514,523		550,608		1,556,737		1,559,217
Other	25		24		70		(70)
	1,348,948		1,377,174		3,297,591		3,277,440
Total external operating revenues	$	1,586,013	$	1,587,289	$	4,237,608	$	4,147,591

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
	(In thousands)
Intersegment operating revenues:
Regulated operations:
Electric	$	136	$	195	$	407	$	586
Natural gas distribution	142		185		425		555
Pipeline	3,845		3,543		37,530		36,583
	4,123		3,923		38,362		37,724
Non-regulated operations:
Pipeline	63		79		470		237
Construction materials and contracting	110		110		314		262
Construction services	289		425		2,128		3,674
Other	3,398		3,006		10,082		8,952
	3,860		3,620		12,994		13,125
Intersegment eliminations	(7,983)		(7,543)		(51,356)		(50,849)
Total intersegment operating revenues	$	—	$	—	$	—	$	—
Operating income (loss):
Electric	$	27,310	$	21,159	$	53,982	$	48,827
Natural gas distribution	(14,249)		(18,393)		42,925		32,285
Pipeline	12,284		11,762		35,896		35,406
Construction materials and contracting	133,712		148,522		171,274		179,994
Construction services	30,120		40,507		108,172		102,185
Other	(8)		154		(226)		339
Total operating income	$	189,169	$	203,711	$	412,023	$	399,036
Net income (loss):
Regulated operations:
Electric	$	20,564	$	16,787	$	41,618	$	40,314
Natural gas distribution	(15,390)		(17,614)		20,081		13,795
Pipeline	10,225		7,812		27,508		23,882
	15,399		6,985		89,207		77,991
Non-regulated operations:
Pipeline	356		189		1,166		444
Construction materials and contracting	96,282		107,307		116,865		122,113
Construction services	23,130		29,789		81,839		74,544
Other	3,795		8,745		2,172		3,303
	123,563		146,030		202,042		200,404
Income from continuing operations	138,962		153,015		291,249		278,395
Income (loss) from discontinued operations, net of tax	314		63		348		(484)
Net income	$	139,276	$	153,078	$	291,597	$	277,911