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Revenue from Customers (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Backlog By Segment

The Company had the following backlog, by segment:

		December 31,
		2019				2018
Heavy Civil Backlog		$	834,049			$	780,706
Specialty Services Backlog		233,976				70,019
Total Heavy Civil and Specialty Services Backlog		$	1,068,025			$	850,725

Disaggregation of Revenue

The following tables present the Company’s revenue disaggregated by major end market and contract type:

		Years Ended December 31,
Revenue by major end market		2019				2018				2017
Heavy Highway		$	483,175			$	513,376			$	579,157
Aviation		141,371				111,824				77,399
Water Containment and Treatment		65,795				66,928				59,593
Other		69,984				73,510				85,503
Heavy Civil Revenue		$	760,325			$	765,638			$	801,652
Land Development		$	84,637			$	—			$	—
Commercial		128,187				120,333				48,314
Specialty Services Revenue		$	212,824			$	120,333			$	48,314
Residential Revenue		$	153,129			$	151,696			$	107,992
Revenues		$	1,126,278			$	1,037,667			$	957,958
Revenue by contract type
Fixed-Unit Price		$	708,638			$	733,047			$	755,840
Lump Sum		262,237				146,874				57,823
Residential and Other		155,403				157,746				144,295
Revenues		$	1,126,278			$	1,037,667			$	957,958

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=118956577&loc=SL49130545-203045

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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=118956577&loc=SL49130556-203045

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