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v3.25.4

Revenue from Contracts with Customers - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2025 USD ($) project | Dec. 31, 2024 USD ($) project
Disaggregation of Revenue [Line Items] |  |
Term of revenue contracts (in years/months) | less than two years |
Net amount of unresolved change orders and claims | $ 13.6 | $ 10.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 |  |
Disaggregation of Revenue [Line Items] |  |
Revenue, remaining performance obligation, expected timing of satisfaction, period (in months) | 24 months |
GCR |  |
Disaggregation of Revenue [Line Items] |  |
Total gross profit write downs |  | $ 1.4
Number of projects with write downs | project | 2 | 3
Total net gross profits write ups (downs) | $ 2.2 | $ 3.3
Total net gross profits write ups (downs) | project |  | 2
GCR | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 |  |
Disaggregation of Revenue [Line Items] |  |
Revenue, remaining performance obligation, amount | $ 141.8 |
Revenue, remaining performance obligation, percentage | 77.00% |
Revenue, remaining performance obligation, expected timing of satisfaction, period (in months) | 12 months |
GCR | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 |  |
Disaggregation of Revenue [Line Items] |  |
Revenue, remaining performance obligation, percentage | 15.00% |
Revenue, remaining performance obligation, expected timing of satisfaction, period (in months) | 12 months |
ODR |  |
Disaggregation of Revenue [Line Items] |  |
Total gross profit write downs | $ 1.1 | $ (3.9)
Total net gross profits write ups (downs) | project | 2 | 4
Revision amount of gross profit contract estimates (more than) |  | $ 0.5
ODR | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 |  |
Disaggregation of Revenue [Line Items] |  |
Revenue, remaining performance obligation, amount | $ 234.3 |
Revenue, remaining performance obligation, percentage | 82.00% |
Revenue, remaining performance obligation, expected timing of satisfaction, period (in months) | 12 months |
ODR | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 |  |
Disaggregation of Revenue [Line Items] |  |
Revenue, remaining performance obligation, percentage | 28.00% |
Revenue, remaining performance obligation, expected timing of satisfaction, period (in months) | 12 months |
Owner Direct Relationships and General Contractor (Construction Manager) Relationships Segment |  |
Disaggregation of Revenue [Line Items] |  |
Revision amount of gross profit contract estimates (more than) | $ 0.5 |

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