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v3.25.4

Commitments and Contingencies (Details) $ in Millions | 12 Months Ended
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Dec. 28, 2025 USD ($) bankingInstitution | Dec. 29, 2024 USD ($)
Other Commitments [Line Items] |  |
Number of financial banking institutions | bankingInstitution | 2 |
Performance and Payment Bond |  |
Other Commitments [Line Items] |  |
Outstanding performance and payment bonds | $ 822.8 |
Cost to complete bonded projects | 385.9 |
Non-Union Electric Segment Customer | Customer Concentration Risk | Accounts Receivable and Contract Assets Benchmark |  |
Other Commitments [Line Items] |  |
Combined accounts receivable and contract assets | $ 131.9 | $ 52.5
Concentration risk percentage | 19.00% | 10.00%

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