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v3.25.1

Segment Information - Summarized Financial Information (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Segment Reporting Information [Line Items] |  |
Revenues | $ 6,233,334 | $ 5,031,819
Segment operating expense (excluding segment depreciation expense) | 5,668,852 | 4,611,166
Segment depreciation expense | 92,380 | 83,228
Segment operating expenses | 5,761,232 | 4,694,394
Equity in earnings of integral unconsolidated affiliates | 12,929 | 12,334
Segment operating income | 485,031 | 349,759
Total consolidated operating income | 239,081 | 155,354
Non-cash stock-based compensation | 38,151 | 35,331
Corporate and Non-Allocated Costs |  |
Segment Reporting Information [Line Items] |  |
Corporate and non-allocated costs | (245,950) | (194,405)
Amortization | 109,600 | 77,500
Non-cash stock-based compensation | 38,200 | 35,300
Electric |  |
Segment Reporting Information [Line Items] |  |
Revenues | 4,944,391 | 3,911,124
Segment operating expense (excluding segment depreciation expense) | 4,482,845 | 3,562,345
Segment depreciation expense | 66,311 | 58,242
Segment operating expenses | 4,549,156 | 3,620,587
Equity in earnings of integral unconsolidated affiliates | 12,929 | 12,334
Segment operating income | $ 408,164 | $ 302,871
Segment operating margin | 8.30% | 7.70%
Underground and Infrastructure (1) |  |
Segment Reporting Information [Line Items] |  |
Revenues | $ 1,288,943 | $ 1,120,695
Segment operating expense (excluding segment depreciation expense) | 1,186,007 | 1,048,821
Segment depreciation expense | 26,069 | 24,986
Segment operating expenses | 1,212,076 | 1,073,807
Equity in earnings of integral unconsolidated affiliates | 0 | 0
Segment operating income | $ 76,867 | $ 46,888
Segment operating margin | 6.00% | 4.20%
Loss on disposition of non-core business |  | $ 10,700
Underground and Infrastructure (1) | 2025 Acquisitions |  |
Segment Reporting Information [Line Items] |  |
Segment operating expense (excluding segment depreciation expense) | $ 4,200 |

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