Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2022

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:

	2022
	T&D				C&I				Total
(dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent
Fixed price	$	835,288	47.8	%	$	1,051,428	83.3	%	$	1,886,716	62.7	%
Unit price	475,276		27.2		78,714		6.2		553,990		18.4
T&E(1)	435,228		25.0		132,608		10.5		567,836		18.9
	$	1,745,792	100.0	%	$	1,262,750	100.0	%	$	3,008,542	100.0	%

	2021
	T&D				C&I				Total
(dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent
Fixed price	$	559,861	43.0	%	$	963,477	80.5	%	$	1,523,338	61.0	%
Unit price	369,710		28.4		73,826		6.2		443,536		17.7
T&E(1)	372,016		28.6		159,399		13.3		531,415		21.3
	$	1,301,587	100.0	%	$	1,196,702	100.0	%	$	2,498,289	100.0	%

	2020
	T&D				C&I				Total
(dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent
Fixed price	$	507,634	44.0	%	$	904,024	82.7	%	$	1,411,658	62.8	%
Unit price	338,611		29.3		77,331		7.1		415,942		18.5
T&E(1)	308,133		26.7		111,659		10.2		419,792		18.7
	$	1,154,378	100.0	%	$	1,093,014	100.0	%	$	2,247,392	100.0	%

(1) The Company T&E contract type includes time-and-equipment, time-and-materials and cost-plus contracts.

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

		2022				2021				2020
(dollars in thousands)	Segment	Amount		Percent		Amount		Percent		Amount		Percent
Transmission	T&D	$	1,083,415	36.0	%	$	806,367	32.3	%	$	745,599	33.2	%
Distribution	T&D	662,377		22.0		495,220		19.8		408,779		18.2
Electrical construction	C&I	1,262,750		42.0		1,196,702		47.9		1,093,014		48.6
Total revenue		$	3,008,542	100.0	%	$	2,498,289	100.0	%	$	2,247,392	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 the amount of remaining performance obligations as of December 31, 2022 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, 2022
(in thousands)	Total		Amount estimated to not be recognized within 12 months
T&D	$	898,617	$	115,881
C&I	1,428,257		335,935
Total	$	2,326,874	$	451,816