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Segment Information - Summarized Financial Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2024
Jun. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]                            
Revenue from contract with customer, including assessed tax $ 6,553,422 $ 6,493,167 $ 5,594,387 $ 5,031,819 $ 5,783,948 $ 5,620,822 $ 5,048,610 $ 4,428,826 $ 10,626,206 $ 9,477,436 $ 17,119,373 $ 15,098,258 $ 23,672,795 $ 20,882,206
Operating income (loss) $ 452,723 $ 431,161 $ 307,230 $ 155,354 $ 322,514 $ 400,329 $ 279,273 $ 125,860 $ 462,584 $ 405,133 $ 893,745 $ 805,462 $ 1,346,468 $ 1,127,976
Operating margin 6.90% 6.60% 5.50% 3.10% 5.60% 7.10% 5.50% 2.80% 4.40% 4.30% 5.20% 5.30% 5.70% 5.40%
Electric Infrastructure Solutions [Member]                            
Segment Reporting Information [Line Items]                            
Revenue from contract with customer, including assessed tax $ 5,380,488 $ 5,233,887 $ 4,486,880 $ 3,911,124 $ 4,482,056 $ 4,236,183 $ 3,804,622 $ 3,344,337 $ 8,398,004 $ 7,148,959 $ 13,631,891 $ 11,385,142 $ 19,012,379 $ 15,867,198
Operating income (loss) $ 653,226 $ 576,014 $ 426,581 $ 302,871 $ 437,684 $ 447,565 $ 354,504 $ 250,805 $ 729,452 $ 605,309 $ 1,305,466 $ 1,052,874 $ 1,958,692 $ 1,490,558
Operating margin 12.10% 11.00% 9.50% 7.70% 9.80% 10.60% 9.30% 7.50% 8.70% 8.50% 9.60% 9.20% 10.30% 9.40%
Underground and Utility Infrastructure Solutions [Member]                            
Segment Reporting Information [Line Items]                            
Revenue from contract with customer, including assessed tax $ 1,172,934 $ 1,259,280 $ 1,107,507 $ 1,120,695 $ 1,301,892 $ 1,384,639 $ 1,243,988 $ 1,084,489 $ 2,228,202 $ 2,328,477 $ 3,487,482 $ 3,713,116 $ 4,660,416 $ 5,015,008
Operating income (loss) $ 42,593 $ 93,956 $ 81,593 $ 46,888 $ 85,433 $ 123,764 $ 107,207 $ 61,573 $ 128,481 $ 168,780 $ 222,437 $ 292,544 $ 265,030 $ 377,977
Operating margin 3.60% 7.50% 7.40% 4.20% 6.60% 8.90% 8.60% 5.70% 5.80% 7.20% 6.40% 7.90% 5.70% 7.50%
Corporate and Non Allocated Costs [Member]                            
Segment Reporting Information [Line Items]                            
Operating income (loss) $ (243,096) $ (238,809) $ (200,944) $ (194,405) $ (200,603) $ (171,000) $ (182,438) $ (186,518) $ (395,349) $ (368,956) $ (634,158) $ (539,956) $ (877,254) $ (740,559)
Operating margin (3.70%) (3.70%) (3.60%) (3.90%) (3.50%) (3.00%) (3.60%) (4.20%) (3.70%) (3.90%) (3.70%) (3.60%) (3.70%) (3.50%)