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Segments and Related Information - Schedule of Financial Information by Reportable Segment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment and Related Information [Line Items]      
Revenue $ 14,299,171 $ 12,303,464 $ 11,995,934
Costs of revenue, excluding depreciation and amortization 12,506,437 10,675,987 10,613,762
EBITDA 1,345,600 1,194,100 918,800
Reportable Segments      
Segment and Related Information [Line Items]      
Revenue 14,299,200 12,303,500 11,995,900
Costs of revenue, excluding depreciation and amortization 12,504,700 10,655,700 10,591,800
Other segment items 448,900 453,700 485,300
EBITDA 1,345,600 1,194,100 918,800
Reportable Segments | Communications      
Segment and Related Information [Line Items]      
Revenue 3,339,100 2,524,200 2,366,400
Costs of revenue, excluding depreciation and amortization 2,953,400 2,222,500 2,085,700
Other segment items 76,200 81,600 101,700
EBITDA 309,500 220,100 179,000
Reportable Segments | Clean Energy and Infrastructure      
Segment and Related Information [Line Items]      
Revenue 4,699,600 4,092,100 3,962,000
Costs of revenue, excluding depreciation and amortization 4,156,000 3,639,800 3,616,900
Other segment items 195,000 195,300 212,700
EBITDA 348,600 257,000 132,400
Reportable Segments | Power Delivery      
Segment and Related Information [Line Items]      
Revenue 4,176,100 3,612,700 3,625,100
Costs of revenue, excluding depreciation and amortization 3,686,200 3,162,700 3,186,500
Other segment items 151,100 148,700 140,600
EBITDA 338,800 301,300 298,000
Reportable Segments | Pipeline Infrastructure      
Segment and Related Information [Line Items]      
Revenue 2,137,800 2,133,600 2,072,800
Costs of revenue, excluding depreciation and amortization 1,762,300 1,689,700 1,731,500
Other segment items 57,600 54,500 56,900
EBITDA 317,900 389,400 284,400
Reportable Segments | Other      
Segment and Related Information [Line Items]      
Revenue 0 0 0
Costs of revenue, excluding depreciation and amortization 0 0 1,100
Other segment items (30,800) (26,200) (26,100)
EBITDA 30,800 26,200 25,000
Eliminations      
Segment and Related Information [Line Items]      
Revenue (53,400) (59,100) (30,400)
Costs of revenue, excluding depreciation and amortization (53,200) (59,000) (29,900)
Other segment items (200) (100) (500)
EBITDA $ 0 $ 0 $ 0