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Revenue Sources and Concentration of Sales (Schedule of Revenue Recognition) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 361,497	$ 199,807
Leasing revenues	3,257	3,243
Total revenues	364,754	203,050
Railcar Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	349,556	189,579
Parts Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 11,941	$ 10,228

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Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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