v3.25.4
Segments Information - Summary of Adjusted EBITDA Business Segment Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]      
Revenue $ 6,364,245 $ 6,750,576 $ 5,442,749
Direct cost of contracts (4,932,711) (5,344,154) (4,236,735)
Selling, general and administrative expenses (365,925) (304,186) (259,254)
Equity in earnings (losses) of unconsolidated joint ventures 2,583 (23,361) (47,751)
Other segment items (526,970) (530,636) (481,974)
Adjusted E B I T D A Attributable To Parent, Total 541,222 548,239 417,035
Adjusted EBITDA attributable to non-controlling interests 68,084 56,714 47,638
Depreciation and amortization (116,486) (99,251) (119,973)
Interest expense, net (44,424) (40,154) (29,306)
Income tax expense (73,647) (76,986) (56,138)
Equity-based compensation expense (40,225) (61,492) (36,151)
Convertible debt repurchase loss 0 (18,355) 0
Transaction related costs (18,205) (17,138) (12,013)
Restructuring expense (2,653)   (1,244)
Other (4,802) (912) (1,933)
Net income including noncontrolling interests 308,864 290,665 207,915
Net income attributable to noncontrolling interests (67,725) (55,612) (46,766)
Net income attributable to Parsons Corporation 241,139 235,053 161,149
Federal Solution Segment      
Segment Reporting Information [Line Items]      
Revenue 3,220,797 4,007,114 3,020,701
Direct cost of contracts (2,530,560) (3,187,829) (2,375,350)
Selling, general and administrative expenses (179,032) (157,442) (129,507)
Equity in earnings (losses) of unconsolidated joint ventures 4,107 3,254 4,190
Other segment items (234,196) (249,759) (230,784)
Adjusted E B I T D A Attributable To Parent, Total 281,116 415,338 289,250
Critical Infrastructure      
Segment Reporting Information [Line Items]      
Revenue 3,143,448 2,743,462 2,422,048
Direct cost of contracts (2,402,151) (2,156,325) (1,861,385)
Selling, general and administrative expenses (186,893) (146,744) (129,747)
Equity in earnings (losses) of unconsolidated joint ventures (1,524) (26,615) (51,941)
Other segment items (292,774) (280,877) (251,190)
Adjusted E B I T D A Attributable To Parent, Total $ 260,106 $ 132,901 $ 127,785