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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Dec. 31, 2025
Revenue from Contract with Customer [Abstract] |
Schedule of the Disaggregation of Revenue | The following tables present revenue disaggregated by contract type:
Year ended December 31, 2025 | E&M |  | T&D |  | Total
| (In thousands)
Fixed-price | $ | 1,534,357 |  |  | $ | 439,481 |  |  | $ | 1,973,838 |
Cost reimbursable* | 1,347,305 |  |  | 258,929 |  |  | 1,606,234 |
Unit-price | 39,010 |  |  | 150,111 |  |  | 189,121 |
Total contract revenues | 2,920,672 |  |  | 848,521 |  |  | 3,769,193 |
Eliminations | (10,017) |  |  | (12,789) |  |  | (22,806) |
Total operating revenues | $ | 2,910,655 |  |  | $ | 835,732 |  |  | $ | 3,746,387 |
__________________ *Includes time and material, time and equipment, and cost reimbursable plus fee contracts.
Year ended December 31, 2024 | E&M |  | T&D |  | Total
| (In thousands)
Fixed-price | $ | 1,299,059 |  |  | $ | 385,868 |  |  | $ | 1,684,927 |
Cost reimbursable* | 670,424 |  |  | 295,679 |  |  | 966,103 |
Unit-price | 61,964 |  |  | 155,599 |  |  | 217,563 |
Total contract revenues | 2,031,447 |  |  | 837,146 |  |  | 2,868,593 |
Eliminations | (7,536) |  |  | (11,372) |  |  | (18,908) |
Total operating revenues | $ | 2,023,911 |  |  | $ | 825,774 |  |  | $ | 2,849,685 |
__________________ *Includes time and material, time and equipment, and cost reimbursable plus fee contracts.
Year ended December 31, 2023 | E&M |  | T&D |  | Total
| (In thousands)
Fixed-price | $ | 1,049,626 |  |  | $ | 353,836 |  |  | $ | 1,403,462 |
Cost reimbursable* | 1,003,455 |  |  | 285,947 |  |  | 1,289,402 |
Unit-price | 81,786 |  |  | 94,794 |  |  | 176,580 |
Total contract revenues | 2,134,867 |  |  | 734,577 |  |  | 2,869,444 |
Eliminations | (9,324) |  |  | (5,730) |  |  | (15,054) |
Total operating revenues | $ | 2,125,543 |  |  | $ | 728,847 |  |  | $ | 2,854,390 |
___________________ *Includes time and material, time and equipment, and cost reimbursable plus fee contracts. The following table presents revenue disaggregated by customer type:
| Year ended December 31,
| 2025 |  | 2024 |  | 2023
| (In thousands)
Commercial | $ | 2,074,578 |  |  | $ | 1,197,760 |  |  | $ | 1,204,016 |
Institutional | 352,671 |  |  | 364,611 |  |  | 262,344 |
Industrial | 316,581 |  |  | 322,661 |  |  | 473,339 |
Service & other | 114,207 |  |  | 109,440 |  |  | 139,766 |
Renewables | 62,635 |  |  | 36,975 |  |  | 55,402 |
Total E&M | 2,920,672 |  |  | 2,031,447 |  |  | 2,134,867 |
Utility | 749,500 |  |  | 753,725 |  |  | 677,434 |
Transportation | 99,021 |  |  | 83,421 |  |  | 57,143 |
Total T&D | 848,521 |  |  | 837,146 |  |  | 734,577 |
Eliminations | (22,806) |  |  | (18,908) |  |  | (15,054) |
Total operating revenues | $ | 3,746,387 |  |  | $ | 2,849,685 |  |  | $ | 2,854,390 |
Summary of Uncompleted Contracts and Contract Assets and Contract Liabilities | Costs, estimated earnings and billings on uncompleted contracts were summarized as follows as of December 31:
| 2025 |  | 2024
| (In thousands)
Costs incurred on uncompleted contracts | $ | 8,036,495 |  |  | $ | 7,034,838 |
Estimated earnings | 1,172,516 |  |  | 995,766 |
Costs and estimated earnings on uncompleted contracts | 9,209,011 |  |  | 8,030,604 |
Less: billings to date | (9,258,355) |  |  | (8,070,859) |
Net contract liabilities | $ | (49,344) |  |  | $ | (40,255) |
Contract assets and Contract liabilities, net consisted of the following as of December 31:
| 2025 |  | 2024
| (In thousands)
Unbilled revenue | $ | 187,902 |  |  | $ | 124,007 |
Retainage | 67,865 |  |  | 43,042 |
Contract assets | $ | 255,767 |  |  | $ | 167,049 |
Deferred revenue | $ | 417,415 |  |  | $ | 278,409 |
Accrued loss provision | 1,965 |  |  | 1,021 |
Less: retainage | (114,269) |  |  | (72,126) |
Contract liabilities, net | $ | 305,111 |  |  | $ | 207,304 |
The following table presents the opening and closing balances of net contract assets (liabilities):
| 2025 |  | 2024
| Contract assets |  | Contract liabilities, net |  | Net contract assets (liabilities) |  | Contract assets |  | Contract liabilities, net |  | Net contract assets (liabilities)
| (In thousands)
Balance at beginning of year | $ | 167,049 |  |  | $ | (207,304) |  |  | $ | (40,255) |  |  | $ | 206,235 |  |  | $ | (140,108) |  |  | $ | 66,127 |
Change during year | 88,718 |  |  | (97,807) |  |  | (9,089) |  |  | (39,186) |  |  | (67,196) |  |  | (106,382) |
Balance at end of year | $ | 255,767 |  |  | $ | (305,111) |  |  | $ | (49,344) |  |  | $ | 167,049 |  |  | $ | (207,304) |  |  | $ | (40,255) |
Summary of Remaining Performance Obligations and Expected Revenue Recognition | The table below shows additional information regarding the Company’s remaining performance obligations as of December 31, 2025, including an estimate of when the Company expects to recognize its remaining performance obligations as revenues:
| Within 12 Months |  | Greater than 12 Months
| (In thousands)
E&M | $ | 2,067,484 |  |  | $ | 382,647 |
T&D | 266,979 |  |  | 80,548 |
Total | $ | 2,334,463 |  |  | $ | 463,195 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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