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Contingencies - Additional Information (Details) |  | 3 Months Ended |
--- | --- | --- | ---
Jul. 01, 2024 USD ($) | Mar. 31, 2025 USD ($) Claim | Sep. 23, 2024 USD ($)
Legal Proceedings [Line Items] |  |  |
Number of claims outstanding | Claim |  | 0 |
Alleged Violation of False Claims, Act |  |  |
Legal Proceedings [Line Items] |  |  |
Amount paid by relator to acquire vehicles for contractor defendant to perform security services |  | $ 2,900,000 |
Alleged Violation of False Claims, Act | Parsons Transportation Group, Inc. and against Alstom Signaling Operations LLC |  |  |
Legal Proceedings [Line Items] |  |  |
Award of damages in the total amount | $ 102,500,000 |  |
pre-judgment interest |  |  | $ 34,000,000
Alleged Violation of False Claims, Act | Minimum |  |  |
Legal Proceedings [Line Items] |  |  |
Amount paid per month to contractor defendant by relator on false claims |  | 1,000,000 |
Loss contingency sought value, civil penalty for each alleged violation of Act |  | 5,500 |
Alleged Violation of False Claims, Act | Maximum |  |  |
Legal Proceedings [Line Items] |  |  |
Loss contingency sought value, civil penalty for each alleged violation of Act |  | $ 11,000 |

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