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Revenue Recognition (Schedule Of Revenue Recognition) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 31,295	$ 3,739
Leasing revenues	1,075	1,458
Total revenues	32,370	5,197
Railcar Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	28,929	1,526
Parts Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	2,328	$ 2,213
Other sales [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 38

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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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