v3.25.2
Segment Information - Summarized Financial Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information [Line Items]        
Revenues $ 6,773,007 $ 5,594,387 $ 13,006,341 $ 10,626,206
Segment operating expense (excluding segment depreciation expense) 6,050,097 5,016,963 11,718,949 9,628,129
Segment depreciation expense 94,031 77,836 186,411 161,064
Segment operating expenses 6,144,128 5,094,799 11,905,360 9,789,193
Equity in earnings of integral unconsolidated affiliates 14,444 8,586 27,373 20,920
Segment operating income 643,323 508,174 1,128,354 857,933
Total consolidated operating income 370,282 307,230 609,363 462,584
Non-cash stock-based compensation     82,222 72,581
Corporate and Non-Allocated Costs        
Segment Reporting Information [Line Items]        
Corporate and non-allocated costs (273,041) (200,944) (518,991) (395,349)
Amortization 113,200 79,200 222,700 156,700
Non-cash stock-based compensation 44,100 37,300 82,200 72,600
Electric        
Segment Reporting Information [Line Items]        
Revenues 5,458,074 4,486,880 10,402,465 8,398,004
Segment operating expense (excluding segment depreciation expense) 4,851,168 4,008,793 9,334,013 7,571,138
Segment depreciation expense 68,730 60,092 135,041 118,334
Segment operating expenses 4,919,898 4,068,885 9,469,054 7,689,472
Equity in earnings of integral unconsolidated affiliates 14,444 8,586 27,373 20,920
Segment operating income $ 552,620 $ 426,581 $ 960,784 $ 729,452
Segment operating margin 10.10% 9.50% 9.20% 8.70%
Underground and Infrastructure        
Segment Reporting Information [Line Items]        
Revenues $ 1,314,933 $ 1,107,507 $ 2,603,876 $ 2,228,202
Segment operating expense (excluding segment depreciation expense) 1,198,929 1,008,170 2,384,936 2,056,991
Segment depreciation expense 25,301 17,744 51,370 42,730
Segment operating expenses 1,224,230 1,025,914 2,436,306 2,099,721
Equity in earnings of integral unconsolidated affiliates 0 0 0 0
Segment operating income $ 90,703 $ 81,593 $ 167,570 $ 128,481
Segment operating margin 6.90% 7.40% 6.40% 5.80%
Loss on disposition of non-core business       $ 11,200