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Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

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:

						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						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						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		%

						2019
						T&D												C&I												Total
(dollars in thousands)						Amount						Percent						Amount						Percent						Amount						Percent
Fixed price						$	564,266					49.7		%				$	701,135					74.8		%				$	1,265,401					61.1		%
Unit price						228,229						20.1						53,552						5.7						281,781						13.6
T&E						341,916						30.2						182,061						19.5						523,977						25.3
						$	1,134,411					100.0		%				$	936,748					100.0		%				$	2,071,159					100.0		%

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

												2021												2020												2019
(dollars in thousands)						Segment						Amount						Percent						Amount						Percent						Amount						Percent
Transmission						T&D						$	806,367					32.3		%				$	745,599					33.2		%				$	772,609					37.3		%
Distribution						T&D						495,220						19.8						408,779						18.2						361,802						17.5
Electrical construction						C&I						1,196,702						47.9						1,093,014						48.6						936,748						45.2
Total revenue												$	2,498,289					100.0		%				$	2,247,392					100.0		%				$	2,071,159					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, 2021 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, 2021
(in thousands)						Total						Amount estimated to not be recognized within 12 months
T&D						$	572,032					$	84,075
C&I						1,105,866						339,659
Total						$	1,677,898					$	423,734

X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

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- References

No definition available.

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X

- Definition

Tabular disclosure of expected timing for satisfying remaining performance obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045

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