v3.26.1
Segment Information - Summarized Financial Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Revenues $ 9,556,997 $ 6,773,007 $ 17,431,784 $ 13,006,341
Segment operating expense (excluding segment depreciation expense) 8,403,206 6,050,097 15,517,494 11,718,949
Segment depreciation expense 111,384 94,031 219,653 186,411
Segment operating expenses 8,514,590 6,144,128 15,737,147 11,905,360
Equity in earnings of integral unconsolidated affiliates 11,590 14,444 26,059 27,373
Segment operating income 1,053,997 643,323 1,720,696 1,128,354
Total consolidated operating income 694,834 370,282 1,033,613 609,363
Non-cash stock-based compensation     126,013 82,222
Corporate and Non-Allocated Costs        
Segment Reporting [Line Items]        
Corporate and non-allocated costs (359,163) (273,041) (687,083) (518,991)
Amortization 157,000 113,200 309,300 222,700
Non-cash stock-based compensation 63,400 44,100 126,000 82,200
Electric        
Segment Reporting [Line Items]        
Revenues 7,837,805 5,458,074 14,306,462 10,402,465
Segment operating expense (excluding segment depreciation expense) 6,864,432 4,851,168 12,703,704 9,334,013
Segment depreciation expense 86,738 68,730 169,510 135,041
Segment operating expenses 6,951,170 4,919,898 12,873,214 9,469,054
Equity in earnings of integral unconsolidated affiliates 11,590 14,444 26,059 27,373
Segment operating income $ 898,225 $ 552,620 $ 1,459,307 $ 960,784
Segment operating margin 11.50% 10.10% 10.20% 9.20%
Underground and Infrastructure        
Segment Reporting [Line Items]        
Revenues $ 1,719,192 $ 1,314,933 $ 3,125,322 $ 2,603,876
Segment operating expense (excluding segment depreciation expense) 1,538,774 1,198,929 2,813,790 2,384,936
Segment depreciation expense 24,646 25,301 50,143 51,370
Segment operating expenses 1,563,420 1,224,230 2,863,933 2,436,306
Equity in earnings of integral unconsolidated affiliates 0 0 0 0
Segment operating income $ 155,772 $ 90,703 $ 261,389 $ 167,570
Segment operating margin 9.10% 6.90% 8.40% 6.40%