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Inventories (Schedule of Inventory Current) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Inventory Disclosure [Abstract]
Raw materials	$ 59,904	$ 47,340
Work in process	14,030	9,323
Finished railcars	23,342	12,640
Parts inventory	6,967	5,978
Total inventories, net	$ 104,243	$ 75,281

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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-Topic 210
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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Gross amount of components of assembled products that can be sold directly or indirectly through sales of assembled products.

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