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Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of revenue by contract and market type

The components of the Company’s revenue by contract type for the three months ended March 31, 2019 and 2018 were as follows:

		Three months ended March 31,  2019
		T&D								C&I								Total
(in thousands)		Amount				Percent				Amount				Percent				Amount				Percent
Fixed price		$	133,324				48.9	%		$	133,711				68.4	%		$	267,035				57.0	%
Unit price			51,194				18.8				9,988				5.1				61,182				13.1
T&E			76,308				28.0				12,531				6.4				88,839				19.0
Other			11,722				4.3				39,316				20.1				51,038				10.9
		$	272,548				100.0	%		$	195,546				100.0	%		$	468,094				100.0	%

		Three months ended March 31, 2018
		T&D								C&I								Total
(in thousands)		Amount				Percent				Amount				Percent				Amount				Percent
Fixed price		$	79,435				36.7	%		$	89,155				69.0	%		$	168,590				48.8	%
Unit price			45,676				21.1				9,650				7.5				55,326				16.0
T&E			80,345				37.1				9,457				7.3				89,802				26.0
Other			10,930				5.1				20,963				16.2				31,893				9.2
		$	216,386				100.0	%		$	129,225				100.0	%		$	345,611				100.0	%

The components of the Company’s revenue by market type for the three months ended March 31, 2019 and 2018 were as follows:

		Three months ended March 31,  2019										Three months ended March 31, 2018
(in thousands)		Amount				Percent				Segment		Amount				Percent				Segment
Transmission		$	187,765				40.1	%		T&D		$	134,452				38.9	%		T&D
Distribution			84,783				18.1			T&D			81,934				23.7			T&D
Electrical construction			195,546				41.8			C&I			129,225				37.4			C&I
Total Revenue		$	468,094				100.0	%				$	345,611				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 that the Company expects to be realized as of March 31, 2019 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 March 31, 2019
(In thousands)		Total				Amount estimated to not be recognized within 12 months				Total at December 31, 2018
T&D		$	398,382			$	40,445			$	418,178
C&I			657,741				123,611				644,547
Total		$	1,056,123			$	164,056			$	1,062,725

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&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=109196051&loc=SL49130556-203045

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