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Inventories (Schedule of Inventory Current) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Inventory Disclosure [Abstract]    
Raw materials $ 46,421 $ 34,885
Work in process 4,527 11,306
Finished railcars 8,783 4,696
Parts inventory 4,586 5,125
Total inventories, net $ 64,317 $ 56,012