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Leased Railcars (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Leases [Line Items] |  |
Railcars Available for Lease, net | $ 2,842 | $ 11,324
Railcars Available for Lease, cost | 2,842 | 14,995
Railcars Available for Lease, accumulated depreciation | 0 | 3,671
Depreciation Expense on Leased Railcars | 332 | 616
Impairment Of Leased Railcars | $ 4,091 | 4,515
Lessee, Operating Lease, Discount Rate | 6.30% |
Manufacturing [Member] |  |
Leases [Line Items] |  |
Assets, fair value | $ 2,842 |
Impairment Of Leased Railcars | 4,091 | $ 4,515
Manufacturing [Member] | Valuation, Cost Approach [Member] |  |
Leases [Line Items] |  |
Railcars Available for Lease, net | $ 6,933 |

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