Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Revenue by Contact and Market Type

The components of the Company’s revenue by contract type were as follows for the year ended December 31:


	2020
	T&D				C&I				Total
(dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent
Fixed price	$	507,203	43.9	%	$	902,134	82.5	%	$	1,409,337	62.7	%
Unit price	338,326		29.3		77,144		7.1		415,470		18.5
T&E	285,158		24.7		72,560		6.6		357,718		15.9
Other	23,691		2.1		41,176		3.8		64,867		2.9
	$	1,154,378	100.0	%	$	1,093,014	100.0	%	$	2,247,392	100.0	%


	2019
	T&D				C&I				Total
(dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent
Fixed price	$	564,251	49.7	%	$	704,743	75.2	%	$	1,268,994	61.3	%
Unit price	228,223		20.1		54,433		5.8		282,656		13.6
T&E	316,943		27.9		101,770		10.9		418,713		20.2
Other	24,994		2.3		75,802		8.1		100,796		4.9
	$	1,134,411	100.0	%	$	936,748	100.0	%	$	2,071,159	100.0	%


	2018
	T&D				C&I				Total
(dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent
Fixed price	$	361,699	40.5	%	$	452,732	71.0	%	$	814,431	53.2	%
Unit price	181,179		20.3		51,590		8.1		232,769		15.2
T&E	305,581		34.2		34,938		5.4		340,519		22.2
Other	44,649		5.0		98,801		15.5		143,450		9.4
	$	893,108	100.0	%	$	638,061	100.0	%	$	1,531,169	100.0	%

The components of the Company’s revenue by market type were as follows for the year ended December 31:


		2020				2019				2018
(dollars in thousands)	Segment	Amount		Percent		Amount		Percent		Amount		Percent
Transmission	T&D	$	745,599	33.2	%	$	772,609	37.3	%	$	559,467	36.5	%
Distribution	T&D	408,779		18.2		361,802		17.5		333,641		21.8
Electrical construction	C&I	1,093,014		48.6		936,748		45.2		638,061		41.7
Total revenue		$	2,247,392	100.0	%	$	2,071,159	100.0	%	$	1,531,169	100.0	%

Schedule of Amount of the Remaining Performance Obligations That the company Reasonably Estimates Will Not be Recognized Within the Next Twelve Months

The following table summarizes that amount of remaining performance obligations as of December 31, 2020 that the Company expects to be realized and the amount of the remaining performance obligations that the Company reasonably estimates will not be recognized within the next twelve months.


	Remaining Performance Obligations as of December 31, 2020
(in thousands)	Total		Amount estimated to not be recognized within 12 months
T&D	$	645,422	$	184,526
C&I	889,596		208,519
Total	$	1,535,018	$	393,045