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Income Taxes - Schedule of Components of Deferred Income Taxes (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 64,901 | $ 57,870
Capital loss | 26,692 | 26,518
Disallowed interest | 5,048 | 3,457
R&D, Energy and AMT credits | 3,742 | 3,742
Derivatives |  | 3,051
Intangibles | 2,981 | 1,201
Pension liability | 1,016 | 1,173
Railcar contracts | 1,090 | 818
Stock-based compensation | 803 | 696
Allowance for credit losses and other assets | 1,059 | 296
Other | 4,971 | 3,340
Total gross deferred tax assets | 112,303 | 102,162
Less: valuation allowance | (110,687) | (93,506)
Total deferred tax assets, net of valuation allowance | 1,616 | 8,656
Deferred tax liabilities: |  |
Property and equipment | (703) | (7,720)
Derivatives | (574) |
Other | (575) | (1,172)
Total deferred tax liabilities | (1,852) | (8,892)
Net deferred tax liabilities, included in other liabilities | $ (236) | $ (236)

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