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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Contract assets | $ 0 | $ 0
Contract liability | 219 | 4,807
Performance obligation | 40,635 |
Fasemex [Member] |  |
Related Party Transaction, Expenses from Transactions with Related Party | $ 28,669 | $ 89,984
Maximum [Member] |  |
Warranty period | 5 years |
Useful life of assets related to state and local incentives | 16 years |
Maximum [Member] | Railcar Sales [Member] |  |
Contract payment term | 10 days |
Maximum [Member] | Parts Sales [Member] |  |
Contract payment term | 45 days |
Minimum [Member] |  |
Useful life of assets related to state and local incentives | 7 years |
Minimum [Member] | Railcar Sales [Member] |  |
Contract payment term | 5 days |
Minimum [Member] | Parts Sales [Member] |  |
Contract payment term | 30 days |

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