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Segments and Related Information - Schedule of Financial Information by Reportable Segment - Capital Expenditures (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Capital Expenditures: |  |  |
Consolidated capital expenditures | $ 259,985 | $ 148,855 | $ 192,941
Reportable Segments | Communications |  |  |
Capital Expenditures: |  |  |
Consolidated capital expenditures | 22,000 | 16,800 | 23,600
Reportable Segments | Clean Energy and Infrastructure |  |  |
Capital Expenditures: |  |  |
Consolidated capital expenditures | 34,800 | 27,000 | 30,900
Reportable Segments | Power Delivery |  |  |
Capital Expenditures: |  |  |
Consolidated capital expenditures | 78,700 | 72,700 | 56,700
Reportable Segments | Pipeline Infrastructure |  |  |
Capital Expenditures: |  |  |
Consolidated capital expenditures | 100,200 | 27,500 | 76,000
Reportable Segments | Other |  |  |
Capital Expenditures: |  |  |
Consolidated capital expenditures | 0 | 0 | 0
Corporate |  |  |
Capital Expenditures: |  |  |
Consolidated capital expenditures | $ 24,300 | $ 4,900 | $ 5,700

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