Revenue (Tables)

3 Months Ended

Mar. 31, 2020

Contract assets consist of the following (in thousands):


	March 31,		December 31,
	2020		2019
Unbilled revenue	$	268,282	$	251,429
Retention receivable		78,216		81,393
Contract materials (not yet installed)		12,872		11,984
	$	359,370	$	344,806

Contract liabilities consist of the following (in thousands):

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


	For the three months ended March 31, 2020
Segment	MSA		Non-MSA		Total
Power	$	37,095		159,098		196,193
Pipeline		46,732		144,791		191,523
Utilities		104,011		43,159		147,170
Transmission		81,774		21,010		102,784
Civil		796		104,777		105,573
Total	$	270,408	$	472,835	$	743,243


	For the three months ended March 31, 2019
Segment	MSA		Non-MSA		Total
Power	$	49,195	$	96,188	$	145,383
Pipeline		21,849		112,965		134,814
Utilities		119,462		26,744		146,206
Transmission		101,723		16,720		118,443
Civil		650		116,062		116,712
Total	$	292,879	$	368,679	$	661,558

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


	For the three months ended March 31, 2020
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Power	$	144,850		181		51,162		196,193
Pipeline		15,345		81,830		94,348		191,523
Utilities		24,089		80,639		42,442		147,170
Transmission		13,636		88,789		359		102,784
Civil		19,859		75,447		10,267		105,573
Total	$	217,779	$	326,886	$	198,578	$	743,243

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


	For the three months ended March 31, 2019
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Power	$	75,143	$	6,613	$	63,627	$	145,383
Pipeline		17,227		374		117,213		134,814
Utilities		22,767		67,878		55,561		146,206
Transmission		8,463		105,841		4,139		118,443
Civil		22,685		78,494		15,533		116,712
Total	$	146,285	$	259,200	$	256,073	$	661,558

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