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v3.25.4

Segment Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 USD ($) customer segment | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Segment Information |  |  |
Number of reportable segments | segment | 2 |  |
Total assets | $ 6,441,169 | $ 4,711,088 |
Revenue | 9,101,641 | 7,027,476 | $ 5,206,760
Cost of services | 6,905,742 | 5,551,065 | 4,216,251
Gross profit | 2,195,899 | 1,476,411 | 990,509
Selling, general and administrative expenses | 883,284 | 730,072 | 574,423
Gain on sale of assets | (1,974) | (3,030) | (2,302)
Operating income (loss) | 1,314,589 | 749,369 | 418,388
Other income (expense) | (21,136) | (82,808) | (30,194)
Income before income taxes | 1,293,453 | 666,561 | 388,194
Amortization of identifiable intangible assets | 79,580 | 97,266 | 43,404
Depreciation expense | 62,379 | 48,219 | 38,162
Capital expenditures | $ 154,903 | $ 111,071 | $ 94,838
Revenue from contract with customer benchmark | Customer concentration |  |  |
Segment Information |  |  |
Number of Customers | customer | 1 |  |
Revenue from contract with customer benchmark | Customer concentration | Customer One |  |  |
Segment Information |  |  |
Single customer, percentage | 12.80% | 13.30% | 13.80%
Operating Segments | Mechanical Segment |  |  |
Segment Information |  |  |
Total assets | $ 3,683,678 | $ 3,162,677 |
Revenue | 6,673,745 | 5,527,604 | $ 3,946,022
Cost of services | 5,101,349 | 4,413,108 | 3,195,916
Gross profit | 1,572,396 | 1,114,496 | 750,106
Selling, general and administrative expenses | 574,344 | 499,441 | 394,657
Gain on sale of assets | (1,433) | (1,813) | (1,715)
Operating income (loss) | 999,485 | 616,868 | 357,164
Amortization of identifiable intangible assets | 54,162 | 74,873 | 17,619
Depreciation expense | 50,754 | 39,601 | 30,850
Capital expenditures | 126,436 | 80,957 | 82,449
Operating Segments | Electrical Segment |  |  |
Segment Information |  |  |
Total assets | 1,765,570 | 985,006 |
Revenue | 2,427,896 | 1,499,872 | 1,260,738
Cost of services | 1,804,393 | 1,137,957 | 1,020,335
Gross profit | 623,503 | 361,915 | 240,403
Selling, general and administrative expenses | 236,580 | 170,155 | 129,623
Gain on sale of assets | (541) | (1,217) | (587)
Operating income (loss) | 387,464 | 192,977 | 111,367
Amortization of identifiable intangible assets | 25,418 | 22,393 | 25,785
Depreciation expense | 10,199 | 7,450 | 6,576
Capital expenditures | 26,556 | 26,850 | 9,600
Corporate & Eliminations |  |  |
Segment Information |  |  |
Total assets | 991,921 | 563,405 |
Selling, general and administrative expenses | 72,360 | 60,476 | 50,143
Operating income (loss) | (72,360) | (60,476) | (50,143)
Depreciation expense | 1,426 | 1,168 | 736
Capital expenditures | $ 1,911 | $ 3,264 | $ 2,789

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