v3.26.3
SEGMENT INFORMATION - Schedule of Revenue, Operating Income, and Assets, by Reportable Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Revenues $ 1,563,927 $ 689,019 $ 3,557,781 $ 1,734,436  
Cost of revenues (1,186,648) (518,803) (2,696,249) (1,326,240)  
Gross profit 377,279 170,216 861,532 408,196  
General and administrative expenses (61,363) (37,585) (162,343) (106,203)  
Intangible asset amortization (8,382) (6,035) (22,967) (15,074)  
Other operating income, net 3,931 5,405 11,229 11,082  
Operating Income (306,842) (125,309) (663,917) (285,949)  
Acquisition related costs (2,136) (5,349) (16,071) (8,023)  
Earn-out Expense (2,487) (1,343) (7,463) (4,029)  
Depreciation (19,437) (13,878) (52,863) (39,452)  
Assets 3,481,980   3,481,980   $ 2,633,831
E-Infrastructure Solutions Revenues          
Segment Reporting [Line Items]          
Revenues 1,302,739 417,106 2,805,472 945,775  
Transportation Solutions Revenues          
Segment Reporting [Line Items]          
Revenues 165,224 170,490 454,779 487,948  
Building Solutions Revenues          
Segment Reporting [Line Items]          
Revenues 95,964 101,423 297,530 300,713  
Operating Segments          
Segment Reporting [Line Items]          
Revenues 1,563,927 689,019 3,557,781 1,734,436  
Cost of revenues (1,186,648) (518,803) (2,696,249) (1,326,240)  
Gross profit 377,279 170,216 861,532 408,196  
General and administrative expenses (42,415) (27,843) (117,133) (72,617)  
Intangible asset amortization (8,382) (6,035) (22,967) (15,074)  
Other operating income, net 3,931 5,405 11,229 11,082  
Operating Income (330,413) (141,743) (732,661) (331,587)  
Operating Segments | E-Infrastructure Solutions Revenues          
Segment Reporting [Line Items]          
Revenues 1,302,739 417,106 2,805,472 945,775  
Cost of revenues (970,586) (288,757) (2,064,601) (656,459)  
Gross profit 332,153 128,349 740,871 289,316  
General and administrative expenses (30,948) (17,656) (85,174) (42,280)  
Intangible asset amortization (6,658) (4,079) (17,795) (10,013)  
Other operating income, net (32) 0 1,226 0  
Operating Income (294,515) (106,614) (639,128) (237,023)  
Depreciation (14,545) (10,569) (39,253) (30,340)  
Assets 3,100,823   3,100,823   1,870,246
Operating Segments | Transportation Solutions Revenues          
Segment Reporting [Line Items]          
Revenues 165,224 170,490 454,779 487,948  
Cost of revenues (130,135) (144,134) (368,455) (416,133)  
Gross profit 35,089 26,356 86,324 71,815  
General and administrative expenses (8,820) (7,384) (23,165) (21,292)  
Intangible asset amortization 0 0 0 0  
Other operating income, net 3,963 5,405 10,003 11,082  
Operating Income (30,232) (24,377) (73,162) (61,605)  
Depreciation (4,070) (2,589) (11,323) (7,015)  
Assets 85,501   85,501   181,867
Operating Segments | Building Solutions Revenues          
Segment Reporting [Line Items]          
Revenues 95,964 101,423 297,530 300,713  
Cost of revenues (85,927) (85,912) (263,193) (253,648)  
Gross profit 10,037 15,511 34,337 47,065  
General and administrative expenses (2,647) (2,803) (8,794) (9,045)  
Intangible asset amortization (1,724) (1,956) (5,172) (5,061)  
Other operating income, net 0 0 0 0  
Operating Income (5,666) (10,752) (20,371) (32,959)  
Depreciation (370) (394) (1,101) (1,129)  
Assets 235,845   235,845   240,174
Corporate          
Segment Reporting [Line Items]          
General and administrative expenses (18,948) (9,742) (45,210) (33,586)  
Operating Income (18,948) (9,742) (45,210) (33,586)  
Depreciation (452) $ (326) (1,186) $ (968)  
Assets $ 59,811   $ 59,811   $ 341,544