Change In Contract Estimates, Impact On Operating Results Gain (Loss)

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- Definition

Percent Aggregate Change In Contract Estimates Impact On Gross Margin

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No definition available.

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- Definition

Revenue recognition.

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No definition available.

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- Definition

Revenue Recognized, Related To Unapproved Change Orders And Claims

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No definition available.

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- Definition

Revenue, Remaining Performance Obligation Expected to Be Recognized Within Twelve Months

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No definition available.

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- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130549-203045

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- Definition

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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No definition available.

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- Definition

Losses recognized in the current period on contracts which are expected to generate losses, which are probable and can be reasonably estimated, in a future period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130556-203045

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Summary of Significant Accounting Policies - Revenue Recognition (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2019	Jan. 01, 2018	Dec. 31, 2017
Revenue Recognition [Line Items]
Revenue, remaining performance obligation	$ 5,190,000
Change orders and/or claims	90,400				$ 144,000
Revenue, related to performance obligation satisfied in previous periods	26,000
Change in contract estimates, impact on operating results, gain (loss)	$ 10,600	$ (500)
Percent aggregate change in contract estimates impact on gross margin	3.50%	(0.20%)
Accounts payable and accrued expenses	$ 1,040,661				1,057,460
EPC Electric Transmission Project
Revenue Recognition [Line Items]
Change in contract estimates, impact on operating results, gain (loss)	16,800
Natural Gas Transmission Project
Revenue Recognition [Line Items]
Loss on contracts		$ 16,500
Retained Earnings \| Accounting Standards Update 2014-09
Revenue Recognition [Line Items]
Cumulative effect adjustment				$ (1,800)
Unearned Revenue
Revenue Recognition [Line Items]
Accounts payable and accrued expenses	$ 17,800				$ 16,000
Scenario, Forecast
Revenue Recognition [Line Items]
Revenue, remaining performance obligation expected to be recognized within twelve months			80.00%