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Contract Assets and Liabilities (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Product Information [Line Items] |  |  |  |  |  |
Claim recovery estimates | $ 70.4 |  |  | $ 70.4 |  | $ 77.9
Revenue recognized | 55.0 |  | $ 48.1 | $ 253.3 | $ 171.1 |
Customer Concentration Risk | Accounts Receivable | Brightline Trains Florida LLC |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |
Concentration risk |  | 11.10% |  | 9.40% |  |
Performance Obligations |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |
Revenue adjustment | $ 93.1 |  | $ 45.5 | $ 177.4 | $ 89.7 |

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