Revenue from contracts with customers (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

In the following tables, revenue is disaggregated by the type of customer or service provided. The Company believes this level of disaggregation best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. The table also includes a reconciliation of the disaggregated revenue by reportable segments. For more information on the Company's business segments, see Note 17.


Three Months Ended March 31, 2021	Electric		Natural gas distribution		Pipeline		Construction materials and contracting		Construction services		Other		Total
	(In thousands)
Residential utility sales	$	33,436	$	203,137	$	—	$	—	$	—	$	—	$	236,573
Commercial utility sales	32,928		120,052		—		—		—		—		152,980
Industrial utility sales	10,029		8,812		—		—		—		—		18,841
Other utility sales	1,566		—		—		—		—		—		1,566
Natural gas transportation	—		12,452		29,417		—		—		—		41,869

Natural gas storage	—		—		4,029		—		—		—		4,029
Contracting services	—		—		—		96,025		—		—		96,025
Construction materials	—		—		—		216,412		—		—		216,412
Intrasegment eliminations	—		—		—		(46,716)		—		—		(46,716)
Inside specialty contracting	—		—		—		—		355,190		—		355,190
Outside specialty contracting	—		—		—		—		151,363		—		151,363
Other	9,773		3,009		2,660		—		36		3,341		18,819
Intersegment eliminations	(136)		(142)		(26,229)		(62)		(1,042)		(3,324)		(30,935)
Revenues from contracts with customers	87,596		347,320		9,877		265,659		505,547		17		1,216,016
Revenues out of scope	(2,923)		2,886		36		—		11,923		—		11,922
Total external operating revenues	$	84,673	$	350,206	$	9,913	$	265,659	$	517,470	$	17	$	1,227,938


Three Months Ended March 31, 2020	Electric		Natural gas distribution		Pipeline		Construction materials and contracting		Construction services		Other		Total
	(In thousands)
Residential utility sales	$	32,349	$	186,701	$	—	$	—	$	—	$	—	$	219,050
Commercial utility sales	33,587		114,996		—		—		—		—		148,583
Industrial utility sales	10,367		8,521		—		—		—		—		18,888
Other utility sales	1,648		—		—		—		—		—		1,648
Natural gas transportation	—		11,798		27,432		—		—		—		39,230
Natural gas gathering	—		—		2,090		—		—		—		2,090
Natural gas storage	—		—		3,046		—		—		—		3,046
Contracting services	—		—		—		98,401		—		—		98,401
Construction materials	—		—		—		207,910		—		—		207,910
Intrasegment eliminations	—		—		—		(44,104)		—		—		(44,104)
Inside specialty contracting	—		—		—		—		372,209		—		372,209
Outside specialty contracting	—		—		—		—		130,150		—		130,150
Other	8,450		2,498		3,241		—		351		2,991		17,531
Intersegment eliminations	(195)		(185)		(25,199)		(63)		(2,470)		(2,973)		(31,085)
Revenues from contracts with customers	86,206		324,329		10,610		262,144		500,240		18		1,183,547
Revenues out of scope	(298)		2,114		45		—		11,965		—		13,826
Total external operating revenues	$	85,908	$	326,443	$	10,655	$	262,144	$	512,205	$	18	$	1,197,373

Contract balances

The changes in contract assets and liabilities were as follows:


	March 31, 2021		December 31, 2020		Change		Location on Consolidated Balance Sheets
	(In thousands)
Contract assets	$	107,543	$	104,345	$	3,198	Receivables, net
Contract liabilities - current	(142,828)		(158,603)		15,775		Accounts payable
Contract liabilities - noncurrent	(171)		(52)		(119)		Noncurrent liabilities - other
Net contract liabilities	$	(35,456)	$	(54,310)	$	18,854