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Segment Information - Summarized Financial Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting Information [Line Items]      
Revenues $ 23,672,795 $ 20,882,206 $ 17,073,903
Segment operating expenses, (excluding depreciation expense) 21,163,879 18,754,901 15,272,917
Depreciation expense 335,678 300,379 272,803
Segment operating expenses 21,499,557 19,055,280 15,545,720
Equity in earnings of integral unconsolidated affiliates 50,484 41,609 52,466
Segment operating income 2,223,722 1,868,535 1,580,649
Corporate and non-allocated costs (877,254) (740,559) (708,591)
Operating income 1,346,468 1,127,976 872,058
Non-cash stock compensation expense 150,526 126,762 105,600
Asset impairment charges 0 0 14,457
Software implementation project      
Segment Reporting Information [Line Items]      
Fair value     0
Corporate and Non-Allocated      
Segment Reporting Information [Line Items]      
Amortization expense 383,000 289,000 354,000
Non-cash stock compensation expense 150,500 126,800 105,600
Termination of the Peru Telecommunications Project      
Segment Reporting Information [Line Items]      
Operating income 39,200    
Electric Power      
Segment Reporting Information [Line Items]      
Revenues 11,166,495 9,696,897 8,940,276
Segment operating expenses, (excluding depreciation expense) 9,757,100 8,556,670 7,884,793
Depreciation expense 168,299 168,486 149,151
Segment operating expenses 9,925,399 8,725,156 8,033,944
Equity in earnings of integral unconsolidated affiliates 50,484 41,609 52,466
Segment operating income $ 1,291,580 $ 1,013,350 $ 958,798
Segment operating margin (percent) 11.60% 10.50% 10.70%
Electric Power | Termination of the Peru Telecommunications Project      
Segment Reporting Information [Line Items]      
Revenues $ 30,200    
Segment operating income 20,700    
Renewable Energy      
Segment Reporting Information [Line Items]      
Revenues 7,845,884 $ 6,170,301 $ 3,778,560
Segment operating expenses, (excluding depreciation expense) 7,098,309 5,638,724 3,433,717
Depreciation expense 80,463 54,369 40,535
Segment operating expenses 7,178,772 5,693,093 3,474,252
Equity in earnings of integral unconsolidated affiliates 0 0 0
Segment operating income $ 667,112 $ 477,208 $ 304,308
Segment operating margin (percent) 8.50% 7.70% 8.10%
Renewable Energy | Software implementation project      
Segment Reporting Information [Line Items]      
Asset impairment charges     $ 11,700
Underground and Infrastructure      
Segment Reporting Information [Line Items]      
Revenues $ 4,660,416 $ 5,015,008 4,355,067
Segment operating expenses, (excluding depreciation expense) 4,308,470 4,559,507 3,954,407
Depreciation expense 86,916 77,524 83,117
Segment operating expenses 4,395,386 4,637,031 4,037,524
Equity in earnings of integral unconsolidated affiliates 0 0 0
Segment operating income $ 265,030 $ 377,977 $ 317,543
Segment operating margin (percent) 5.70% 7.50% 7.30%
Gain (Loss) on Disposition of Business $ (11,900)