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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Disaggregation of Revenue |  |  |  |
Revenue | $ 2,173,319 | $ 1,810,290 | $ 4,004,605 | $ 3,347,306
Percentage of revenue from contract with customer (as a percent) | 100.00% | 100.00% | 100.00% | 100.00%
New Construction |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 1,256,866 | $ 1,082,272 | $ 2,321,950 | $ 1,981,248
Percentage of revenue from contract with customer (as a percent) | 57.90% | 59.80% | 58.00% | 59.20%
Existing Building Construction |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 607,236 | $ 446,574 | $ 1,099,839 | $ 836,943
Percentage of revenue from contract with customer (as a percent) | 27.90% | 24.70% | 27.50% | 25.00%
Service Projects |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 146,271 | $ 126,280 | $ 265,485 | $ 230,394
Percentage of revenue from contract with customer (as a percent) | 6.70% | 6.90% | 6.60% | 6.90%
Service Calls, Maintenance and Monitoring |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 162,946 | $ 155,164 | $ 317,331 | $ 298,721
Percentage of revenue from contract with customer (as a percent) | 7.50% | 8.60% | 7.90% | 8.90%
Technology |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 934,199 | $ 561,313 | $ 1,611,752 | $ 1,026,127
Percentage of revenue from contract with customer (as a percent) | 43.00% | 31.00% | 40.20% | 30.70%
Manufacturing |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 473,040 | $ 526,215 | $ 925,826 | $ 987,615
Percentage of revenue from contract with customer (as a percent) | 21.80% | 29.00% | 23.10% | 29.50%
Healthcare |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 200,341 | $ 140,747 | $ 382,883 | $ 274,476
Percentage of revenue from contract with customer (as a percent) | 9.20% | 7.80% | 9.60% | 8.20%
Education |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 194,845 | $ 193,433 | $ 356,087 | $ 327,416
Percentage of revenue from contract with customer (as a percent) | 8.90% | 10.70% | 8.90% | 9.80%
Office Buildings |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 110,461 | $ 115,012 | $ 232,987 | $ 216,904
Percentage of revenue from contract with customer (as a percent) | 5.10% | 6.40% | 5.90% | 6.50%
Government |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 107,753 | $ 91,073 | $ 204,034 | $ 178,874
Percentage of revenue from contract with customer (as a percent) | 5.00% | 5.00% | 5.10% | 5.30%
Retail, Restaurants and Entertainment |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 85,107 | $ 114,501 | $ 162,116 | $ 195,086
Percentage of revenue from contract with customer (as a percent) | 3.90% | 6.30% | 4.00% | 5.80%
Multi-Family and Residential |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 33,214 | $ 36,181 | $ 61,567 | $ 77,032
Percentage of revenue from contract with customer (as a percent) | 1.50% | 2.00% | 1.50% | 2.30%
Other |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 34,359 | $ 31,815 | $ 67,353 | $ 63,776
Percentage of revenue from contract with customer (as a percent) | 1.60% | 1.80% | 1.70% | 1.90%
Mechanical Segment |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 1,638,672 | $ 1,451,679 | $ 3,040,887 | $ 2,636,688
Percentage of revenue from contract with customer (as a percent) | 75.40% | 80.20% | 75.90% | 78.80%
Electrical Segment |  |  |  |
Disaggregation of Revenue |  |  |  |
Revenue | $ 534,647 | $ 358,611 | $ 963,718 | $ 710,618
Percentage of revenue from contract with customer (as a percent) | 24.60% | 19.80% | 24.10% | 21.20%

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