Operating Segment and Sales and Credit Concentrations (Details 2)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Affiliated Entity [Member] | Manufacturing [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	0.10%	32.20%	0.20%	40.10%
Affiliated Entity [Member] | Railcar Leasing [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	0.00%	0.00%	0.00%	0.00%
Affiliated Entity [Member] | Railcar Services [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	4.80%	3.30%	4.70%	2.80%
Sales Revenue, Segment [Member] | Manufacturing [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	46.10%	56.80%	33.90%	50.30%
Accounts Receivable [Member] | Manufacturing [Member]
Segment Reporting Information [Line Items]
Percentage of total consolidated revenues from significant customers	43.70%		43.70%		20.90%