Contract Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Aggregate claim recovery estimates	$ 46.6	$ 77.9
Revenue recognized	276.6	$ 191.8	$ 223.7
Customer Concentration Risk \| Accounts Receivable \| Brightline Trains Florida LLC
Disaggregation of Revenue [Line Items]
Concentration risk		11.10%
Performance Obligations
Disaggregation of Revenue [Line Items]
Performance obligations satisfied or partially satisfied	$ 220.7	$ 147.4	$ 182.8

Aggregate affirmative claim recovery estimate included in contract asset and liability balances.

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- Definition

The amount of revenue recognized including opening balance of contract with customer liability.

+ References

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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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- Definition

Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in estimate of transaction price which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due. Includes, but is not limited to, change in assessment of whether estimate of variable consideration is constrained.

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- Definition

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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