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Summary of Significant Accounting Policie (Schedule Of Revenue Recognition) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 199,807	$ 104,052
Leasing revenues	3,243	4,395
Total revenues	203,050	108,447
Railcar Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	189,579	94,455
Parts Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 10,228	$ 9,597

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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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