Segments Information (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Summary of Business Segment Information

The following tables summarize business segment information for the periods presented (in thousands):

	2023		2022		2021
Revenues:
Federal Solutions	$	3,020,701	$	2,212,987	$	1,888,050
Critical Infrastructure		2,422,048		1,982,285		1,772,721
Total revenues	$	5,442,749	$	4,195,272	$	3,660,771

	2023			2022		2021
Equity in (losses) earnings of unconsolidated joint ventures:
Federal Solutions	$	4,190		$	3,677	$	2,303
Critical Infrastructure		(51,941	)		12,670		34,559
Total equity in (losses) earnings of unconsolidated joint ventures	$	(47,751	)	$	16,347	$	36,862

Summary of Adjusted EBITDA Business Segment Information

The following table summarizes business segment Adjusted EBITDA and a reconciliation to net income attributable to Parsons Corporation for the periods presented (in thousands):

	2023			2022			2021
Adjusted EBITDA attributable to Parsons Corporation
Federal Solutions	$	289,250		$	199,004		$	162,733
Critical Infrastructure		127,785			123,385			121,700
Adjusted EBITDA attributable to Parsons    Corporation		417,035			322,389			284,433
Adjusted EBITDA attributable to noncontrolling    interests		47,638			30,393			25,287
Depreciation and amortization		(119,973	)		(120,501	)		(144,209	)
Interest expense, net		(29,306	)		(22,219	)		(17,301	)
Income tax expense		(56,138	)		(39,657	)		(23,636	)
Equity-based compensation expense		(36,151	)		(24,354	)		(19,601	)
Transaction-related costs (a)		(12,013	)		(16,270	)		(11,965	)
Restructuring expense (b)		(1,244	)		(213	)		(736	)
Other (c)		(1,933	)		(3,003	)		(3,320	)
Net income including noncontrolling    interests	$	207,915		$	126,565		$	88,952
Net income attributable to noncontrolling interests		(46,766	)		(29,901	)		(24,880	)
Net income attributable to Parsons    Corporation	$	161,149		$	96,664		$	64,072

(a)Reflects costs incurred in connection with acquisitions, and other non-recurring transaction costs, primarily fees paid for professional services and employee retention.

(b)Reflects costs associated with and related to our corporate restructuring initiatives.

(c)Includes a combination of gain/loss related to sale of fixed assets, software implementation costs, and other individually insignificant items that are non-recurring in nature.

Summary of Revenues and Property and Equipment, Net by Geographic Area

The following table presents revenues and property and equipment, net by geographic area (in thousands):

	2023		2022		2021
Revenues:
North America	$	4,481,492	$	3,463,128	$	3,028,760
Middle East		943,175		710,830		610,655
Rest of World		18,082		21,314		21,356
Total revenues	$	5,442,749	$	4,195,272	$	3,660,771
Property and equipment, net
North America	$	91,766	$	91,217	$	100,674
Middle East		7,191		4,833		3,522
Total property and equipment, net	$	98,957	$	96,050	$	104,196

Summary of Revenues by Business Lines

The following table presents revenues by business lines (in thousands):

	2023		2022		2021
Revenue:
Defense & Intelligence	$	1,539,968	$	1,368,779	$	1,269,030
Engineered Systems		1,480,733		844,208		619,020
Federal Solutions revenues		3,020,701		2,212,987		1,888,050
Infrastructure – North America		1,472,768		1,265,376		1,155,511
Infrastructure – Europe, Middle East and Africa	$	949,280		716,909		617,210
Critical Infrastructure revenues		2,422,048		1,982,285		1,772,721
Total revenues	$	5,442,749	$	4,195,272	$	3,660,771