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v3.25.2

Segment Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) Company | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Number of operating subsidiaries | Company |  |  | 100 |  |
Revenues from unrelated entities | $ 4,304,400 | $ 3,666,897 | $ 8,171,772 | $ 7,099,173 |
Total revenues | 4,304,400 | 3,666,897 | 8,171,772 | 7,099,173 |
Operating income (loss) | 415,212 | 332,808 | 733,968 | 592,761 |
Net periodic pension income | 55 | 221 | 109 | 443 |
Interest (expense) income, net | (3,240) | 6,106 | 2,147 | 13,647 |
Income before income taxes | 412,027 | 339,135 | 736,224 | 606,851 |
Cost of sales | 3,470,629 | 2,982,896 | 6,615,283 | 5,825,863 |
Selling, general and administrative expenses | 418,559 | 351,193 | 822,521 | 680,549 |
Depreciation and amortization of property, plant, and equipment | 16,557 | 14,071 | 32,139 | 27,408 |
Amortization of identifiable intangible assets | 30,089 | 20,161 | 56,452 | 36,412 |
Capital expenditures | 28,043 | 19,251 | 54,174 | 39,529 |
Total assets | 8,400,480 |  | 8,400,480 |  | $ 7,716,473
UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | 4,169,836 | 3,560,330 | 7,931,907 | 6,887,919 |
Total revenues | 4,169,836 | 3,560,330 | 7,931,907 | 6,887,919 |
Operating income (loss) | 446,007 | 361,602 | 811,994 | 655,336 |
Cost of sales | 3,352,640 | 2,889,293 | 6,404,197 | 5,639,943 |
Selling, general and administrative expenses | 371,189 | 309,435 | 715,716 | 592,640 |
Depreciation and amortization of property, plant, and equipment | 15,161 | 12,855 | 29,562 | 25,053 |
Amortization of identifiable intangible assets | 30,089 | 20,161 | 56,452 | 36,412 |
Capital expenditures | 24,545 | 17,166 | 46,794 | 34,953 |
Total assets | 7,473,766 |  | 7,473,766 |  | 5,976,858
United States Electrical Construction And Facilities Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | 1,340,247 | 799,994 | 2,428,091 | 1,564,705 |
United States Mechanical Construction And Facilities Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | 1,755,258 | 1,655,181 | 3,327,860 | 3,082,846 |
United States Building Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | 793,259 | 781,108 | 1,535,882 | 1,562,268 |
United States Industrial Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | 281,072 | 324,047 | 640,074 | 678,100 |
United Kingdom Building Services [Member] [Member] | UNITED KINGDOM |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | 134,564 | 106,567 | 239,865 | 211,254 |
Operating Segments [Member] | United States Electrical Construction And Facilities Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | 1,341,883 | 801,587 | 2,431,833 | 1,566,789 |
Total revenues | 1,364,158 | 802,884 | 2,478,353 | 1,569,623 |
Operating income (loss) | 157,644 | 88,577 | 293,701 | 180,166 |
Cost of sales | 1,080,188 | 653,166 | 1,956,431 | 1,280,035 |
Selling, general and administrative expenses | 102,415 | 58,251 | 177,959 | 104,504 |
Depreciation and amortization of property, plant, and equipment | 2,464 | 1,960 | 4,769 | 3,921 |
Amortization of identifiable intangible assets | 12,950 | 1,521 | 22,430 | 3,333 |
Capital expenditures | 4,187 | 2,036 | 8,809 | 3,104 |
Total assets | 2,649,544 |  | 2,649,544 |  | 1,314,577
Operating Segments [Member] | United States Mechanical Construction And Facilities Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | 1,756,632 | 1,656,931 | 3,330,253 | 3,085,912 |
Total revenues | 1,779,871 | 1,669,887 | 3,364,985 | 3,106,715 |
Operating income (loss) | 238,737 | 213,440 | 425,484 | 364,160 |
Cost of sales | 1,395,519 | 1,328,642 | 2,661,229 | 2,508,047 |
Selling, general and administrative expenses | 121,002 | 113,099 | 241,147 | 210,639 |
Depreciation and amortization of property, plant, and equipment | 5,365 | 3,946 | 10,241 | 7,424 |
Amortization of identifiable intangible assets | 5,978 | 7,164 | 11,375 | 10,992 |
Capital expenditures | 12,367 | 8,415 | 23,346 | 16,553 |
Total assets | 2,790,973 |  | 2,790,973 |  | 2,659,184
Operating Segments [Member] | United States Building Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues | 805,703 | 792,277 | 1,557,587 | 1,596,150 |
Operating income (loss) | 50,045 | 46,839 | 86,468 | 80,298 |
Cost of sales | 634,690 | 633,130 | 1,236,199 | 1,277,440 |
Selling, general and administrative expenses | 108,524 | 101,139 | 213,215 | 204,530 |
Depreciation and amortization of property, plant, and equipment | 4,042 | 3,881 | 8,083 | 7,808 |
Amortization of identifiable intangible assets | 5,240 | 5,652 | 10,805 | 10,628 |
Capital expenditures | 4,770 | 4,944 | 8,113 | 9,992 |
Total assets | 1,453,210 |  | 1,453,210 |  | 1,396,236
Operating Segments [Member] | United States Industrial Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues | 287,411 | 326,312 | 651,743 | 684,487 |
Operating income (loss) | (419) | 12,746 | 6,341 | 30,712 |
Cost of sales | 242,243 | 274,355 | 550,338 | 574,421 |
Selling, general and administrative expenses | 39,248 | 36,946 | 83,395 | 72,967 |
Depreciation and amortization of property, plant, and equipment | 3,290 | 3,068 | 6,469 | 5,900 |
Amortization of identifiable intangible assets | 5,921 | 5,824 | 11,842 | 11,459 |
Capital expenditures | 3,221 | 1,771 | 6,526 | 5,304 |
Total assets | 580,039 |  | 580,039 |  | 606,861
Operating Segments [Member] | United Kingdom Building Services [Member] [Member] | UNITED KINGDOM |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues | 134,564 | 106,567 | 239,865 | 211,254 |
Operating income (loss) | 8,425 | 5,777 | 13,412 | 11,154 |
Cost of sales | 117,989 | 93,603 | 211,086 | 185,920 |
Selling, general and administrative expenses | 8,150 | 7,187 | 15,367 | 14,180 |
Depreciation and amortization of property, plant, and equipment | 1,068 | 1,009 | 2,000 | 1,902 |
Amortization of identifiable intangible assets | 0 | 0 | 0 | 0 |
Capital expenditures | 1,928 | 1,905 | 4,384 | 3,850 |
Total assets | 333,788 |  | 333,788 |  | 283,897
Corporate, Non-Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating income (loss) | (39,220) | (34,571) | (91,438) | (73,729) |
Selling, general and administrative expenses | 39,220 | 34,571 | 91,438 | 73,729 |
Depreciation and amortization of property, plant, and equipment | 328 | 207 | 577 | 453 |
Capital expenditures | 1,570 | 180 | 2,996 | 726 |
Total assets | 592,926 |  | 592,926 |  | $ 1,455,718
Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues | (67,307) | (31,030) | (120,761) | (69,056) |
Intersegment Eliminations [Member] | United States Electrical Construction And Facilities Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | (1,636) | (1,593) | (3,742) | (2,084) |
Intersegment Eliminations [Member] | United States Mechanical Construction And Facilities Services [Member] | UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from unrelated entities | $ (1,374) | $ (1,750) | $ (2,393) | $ (3,066) |

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