Operating Segment and Sales and Credit Concentrations (Tables)

3 Months Ended

Mar. 31, 2017

Segment Reporting Information [Line Items]

Segment reporting information

The information in the following table is derived from the segments’ internal financial reports used by the Company’s management for purposes of assessing segment performance and for making decisions about allocation of resources.

	Three Months Ended March 31, 2017
	Revenues
	External		Intersegment			Total			Earnings (Loss) from Operations
	(in thousands)
Manufacturing	$	60,726	$	60,104		$	120,830		$	9,151
Railcar leasing	33,835		—			33,835			18,810
Railcar services	20,120		332			20,452			1,716
Corporate	—		—			—			(4,272		)
Eliminations	—		(60,436		)	(60,436		)	(3,490		)
Total Consolidated	$	114,681	$	—		$	114,681		$	21,915
	Three Months Ended March 31, 2016
	Revenues
	External		Intersegment			Total			Earnings (Loss) from Operations
	(in thousands)
Manufacturing	$	123,792	$	23,631		$	147,423		$	22,686
Railcar leasing	32,768		—			32,768			19,675
Railcar services	19,620		959			20,579			3,508
Corporate	—		—			—			(4,508		)
Eliminations	—		(24,590		)	(24,590		)	(664		)
Total Consolidated	$	176,180	$	—		$	176,180		$	40,697

Total Assets	March 31, 2017			December 31, 2016
	(in thousands)
Manufacturing	$	237,705		$	256,622
Railcar leasing	1,314,257			1,254,824
Railcar services	60,611			57,061
Corporate/Eliminations	(152,936		)	(112,257		)
Total Consolidated	$	1,459,637		$	1,456,250

Schedule of sales to related parties

Below is a summary of revenue from affiliates for each operating segment reflected as a percentage of total consolidated revenues.

	Three Months Ended   March 31,
	2017		2016
Manufacturing	—	%	0.3	%
Railcar leasing	0.2	%	—	%
Railcar services	5.4	%	4.5	%

Sales Revenue, Segment [Member]

Segment Reporting Information [Line Items]

Schedules of sales and credit concentration

	Three Months Ended   March 31,
	2017		2016
Manufacturing revenues from significant customers	42.7	%	50.0	%

Accounts Receivable [Member]

Segment Reporting Information [Line Items]

Schedules of sales and credit concentration

	March 31, 2017		December 31, 2016
Manufacturing receivables from significant customers	23.0	%	53.4	%