Revenue (Tables)

9 Months Ended

Sep. 30, 2023

Revenue

Schedule of contract assets

Contract assets consist of the following (in thousands):

	September 30,		December 31,
	2023		2022
Unbilled revenue	$	505,002	$	420,511
Retention receivable		208,533		174,149
Contract materials (not yet installed)		30,301		21,564
	$	743,836	$	616,224

Schedule of contract liabilities

Contract liabilities consist of the following (in thousands):

	September 30,		December 31,
	2023		2022
Deferred revenue	$	382,350	$	269,853
Accrued loss provision		5,417		6,094
	$	387,767	$	275,947

Schedule of revenue disaggregation by various categories

MSA and Non-MSA revenue was as follows (in thousands):

	For the three months ended September 30, 2023
Segment	MSA		Non-MSA		Total
Utilities	$	505,301	$	139,338	$	644,639
Energy		78,725		806,122		884,847
Total	$	584,026	$	945,460	$	1,529,486

	For the nine months ended September 30, 2023
Segment	MSA		Non-MSA		Total
Utilities	$	1,354,642	$	459,126	$	1,813,768
Energy		222,649		2,163,343		2,385,992
Total	$	1,577,291	$	2,622,469	$	4,199,760

	For the three months ended September 30, 2022
Segment	MSA		Non-MSA		Total
Utilities	$	516,363	$	96,645	$	613,008
Energy		89,484		581,636		671,120
Total	$	605,847	$	678,281	$	1,284,128

	For the nine months ended September 30, 2022
Segment	MSA		Non-MSA		Total
Utilities	$	1,226,511	$	221,346		1,447,857
Energy		224,879		1,418,725		1,643,604
Total	$	1,451,390	$	1,640,071	$	3,091,461

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

	For the three months ended September 30, 2023
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Utilities	$	106,267		406,368	$	132,004	$	644,639
Energy		535,987		168,146		180,714		884,847
Total	$	642,254	$	574,514	$	312,718	$	1,529,486

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

	For the nine months ended September 30, 2023
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Utilities	$	290,320	$	1,131,044	$	392,404	$	1,813,768
Energy		1,548,206		446,704		391,082		2,385,992
Total	$	1,838,526	$	1,577,748	$	783,486	$	4,199,760

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

	For the three months ended September 30, 2022
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Utilities	$	58,602	$	397,204	$	157,202	$	613,008
Energy		440,041		152,501		78,578		671,120
Total	$	498,643	$	549,705	$	235,780	$	1,284,128

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

	For the nine months ended September 30, 2022
Segment	Fixed-price		Unit-price		Cost reimbursable (1)		Total
Utilities	$	123,742	$	988,477	$	335,638	$	1,447,857
Energy		1,080,069		340,890		222,645		1,643,604
Total	$	1,203,811	$	1,329,367	$	558,283	$	3,091,461

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