Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Revenue

Schedule of contract assets

Contract assets consist of the following (in thousands):

	June 30,		December 31,
	2020		2019
Unbilled revenue	$	279,750	$	251,429
Retention receivable		82,711		81,393
Contract materials (not yet installed)		14,272		11,984
	$	376,733	$	344,806

Schedule of contract liabilities

Contract liabilities consist of the following (in thousands):

	June 30,		December 31,
	2020		2019
Deferred revenue	$	211,582	$	186,081
Accrued loss provision		11,495		6,316
	$	223,077	$	192,397

Schedule of revenue disaggregation by various categories

Master Service Agreements (“MSA”) and Non-MSA revenue was as follows (in thousands):

	For the three months ended June 30, 2020
Segment	MSA		Non-MSA		Total
Power	$	26,505		130,971		157,476
Pipeline		32,817		256,742		289,559
Utilities		182,601		47,574		230,175
Transmission		92,656		17,292		109,948
Civil		732		120,326		121,058
Total	$	335,311	$	572,905	$	908,216

	For the six months ended June 30, 2020
Segment	MSA		Non-MSA		Total
Power	$	63,600		290,069		353,669
Pipeline		79,549		401,533		481,082
Utilities		286,612		90,733		377,345
Transmission		174,430		38,302		212,732
Civil		1,528		225,103		226,631
Total	$	605,719	$	1,045,740	$	1,651,459

	For the three months ended June 30, 2019
Segment	MSA		Non-MSA		Total
Power	$	43,689	$	128,481	$	172,170
Pipeline		20,153		117,090		137,243
Utilities		172,371		49,941		222,312
Transmission		110,875		24,479		135,354
Civil		1,225		121,625		122,850
Total	$	348,313	$	441,616	$	789,929

	For the six months ended June 30, 2019
Segment	MSA		Non-MSA		Total
Power	$	92,884	$	224,669	$	317,553
Pipeline		42,002		230,055		272,057
Utilities		291,833		76,685		368,518
Transmission		212,598		41,199		253,797
Civil		1,875		237,687		239,562
Total	$	641,192	$	810,295	$	1,451,487

Revenue by contract type was as follows (in thousands):

	For the three months ended June 30, 2020
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Power	$	119,336		—		38,140		157,476
Pipeline		24,006		150,331		115,222		289,559
Utilities		30,683		155,006		44,486		230,175
Transmission		12,843		97,020		85		109,948
Civil		17,366		94,760		8,932		121,058
Total	$	204,234	$	497,117	$	206,865	$	908,216

(1) Includes time and material and cost reimbursable plus fee contracts.

	For the six months ended June 30, 2020
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Power	$	264,186		181		89,302		353,669
Pipeline		39,351		232,161		209,570		481,082
Utilities		54,772		235,645		86,928		377,345
Transmission		26,479		185,809		444		212,732
Civil		37,225		170,207		19,199		226,631
Total	$	422,013	$	824,003	$	405,443	$	1,651,459

(1) Includes time and material and cost reimbursable plus fee contracts.

	For the three months ended June 30, 2019
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Power	$	105,105	$	4,042	$	63,023	$	172,170
Pipeline		14,109		10,130		113,004		137,243
Utilities		30,120		119,618		72,574		222,312
Transmission		14,251		115,679		5,424		135,354
Civil		19,001		83,905		19,944		122,850
Total	$	182,586	$	333,374	$	273,969	$	789,929

(1)Includes time and material and cost reimbursable plus fee contracts.

	For the six months ended June 30, 2019
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Power	$	180,248	$	10,655	$	126,650	$	317,553
Pipeline		31,336		10,504		230,217		272,057
Utilities		52,887		187,496		128,135		368,518
Transmission		22,714		221,520		9,563		253,797
Civil		41,686		162,399		35,477		239,562
Total	$	328,871	$	592,574	$	530,042	$	1,451,487

(1)Includes time and material and cost reimbursable plus fee contracts.