Contract With Customer, Cumulative Catch-Up Adjustment, Revenue, Change In Estimate, Percent

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Contract With Customer, Liability, Deferred Revenues, Current

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Revenue Recognized, Related To Unapproved Change Orders And Claims

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Number Of Risk Pools

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Number of Service Contract Categories

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- Definition

Revenue From Contract With Customer, Percentage Of Revenue Recognized Over Time

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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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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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional, classified as current.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional, classified as noncurrent.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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Revenue Recognition and Related Balance Sheet Accounts - Additional Information (Details) $ in Millions		3 Months Ended
	Mar. 31, 2025 USD ($) pool	Mar. 31, 2025 USD ($) pool category	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Disaggregation of Revenue [Line Items]
Number of service contract categories \| category		3
Percent of total revenues recognized associated with revenue recognition method		63.40%	57.50%
Remaining performance obligation	$ 17,650.0	$ 17,650.0		$ 16,760.0
Revenues recognized related to change orders and claims	$ 722.6	$ 722.6		733.6
Change in contract estimates, favorable (unfavorable) impact on revenue, percent		0.20%	0.10%
Revenue recognized related to amounts in contract liabilities outstanding at the beginning of period		$ 1,300.0	$ 952.6
Number of risk pools used for calculation historical credit loss experience \| pool	2	2
Current retainage balances	$ 729.2	$ 729.2		666.5
Non-current retainage balances	154.8	154.8		143.6
Unbilled receivables	946.2	946.2		859.9
Accounts Payable and accrued expenses
Disaggregation of Revenue [Line Items]
Unearned revenues, current portion	$ 82.9	$ 82.9		$ 97.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Disaggregation of Revenue [Line Items]
Percent of remaining performance obligation expected to be recognized				67.10%
Recognition period for remaining performance obligation				12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-04-01
Disaggregation of Revenue [Line Items]
Percent of remaining performance obligation expected to be recognized	67.40%	67.40%
Recognition period for remaining performance obligation	12 months	12 months
Credit Concentration Risk \| Financial Instruments \| Secondary Pool
Disaggregation of Revenue [Line Items]
Concentration risk percentage (in percent)	10.00%