Revenue and Related Balance Sheet Accounts - Narrative (Details) $ in Millions	12 Months Ended
Dec. 28, 2025 USD ($) contract	Dec. 29, 2024 USD ($)
Disaggregation of Revenue [Line Items]
Current contract assets included retention balances	$ 40.6	$ 27.3
Contract with customer revenue recognized related to unapproved change orders and claims	47.8	24.8
Increase in contract asset	164.0
Increase in contract liability	25.5
Revenue recognized		21.3
Performance obligations	411.4
Other Noncurrent Assets
Disaggregation of Revenue [Line Items]
Contract with customer revenue recognized related to unapproved change orders and claims	$ 19.7	$ 13.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-12-29
Disaggregation of Revenue [Line Items]
Performance obligation time period	2 years
Fixed-price contracts
Disaggregation of Revenue [Line Items]
Number of contracts greater than one year \| contract	60

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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