Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Manufacturing (including revenues from affiliates of $2,564 for both the three and nine months ended September 30, 2018 and $188 and $325 for the same periods in 2017)	$ 40,766	$ 68,442	$ 194,347	$ 184,255
Railcar leasing (including revenues from affiliates of $404 and $1,219 for the three and nine months ended September 30, 2018, respectively, and $231 and $678 for the same periods in 2017)	32,427	33,440	101,352	100,992
Railcar services (including revenues from affiliates of zero and $17 for the three and nine months ended September 30, 2018, respectively, and $1,156 and $11,729 for the same periods in 2017)	26,791	18,864	67,051	59,200
Total revenues	99,984	120,746	362,750	344,447
Cost of revenues:
Manufacturing	(42,117)	(64,235)	(184,507)	(169,915)
Other operating (loss) income	(15)	(924)	29	140
Railcar leasing	(12,491)	(10,856)	(38,871)	(34,532)
Railcar services	(22,892)	(16,023)	(56,897)	(49,559)
Total cost of revenues	(77,515)	(92,038)	(280,246)	(253,866)
Gross profit	22,469	28,708	82,504	90,581
Selling, general and administrative	(10,993)	(9,263)	(29,349)	(27,084)
Net gains on disposition of leased railcars	272	102	549	115
Asset Impairment Charges	0	0	(3,554)	0
Gain (Loss) on Contract Termination	10,146	0	10,146	0
Earnings from operations	21,894	19,547	60,296	63,612
Interest income (including income from related parties of $166 and $578 for the three and nine months ended September 30, 2018, respectively, and $280 and $922 for the same periods in 2017)	470	405	1,385	1,146
Interest expense	(5,250)	(5,441)	(15,886)	(16,460)
Other income	0	393	1	2,314
Earnings from joint ventures	368	232	2,246	1,578
Earnings before income taxes	17,482	15,136	48,042	52,190
Income tax expense	(4,409)	(6,278)	(12,786)	(21,865)
Net earnings	$ 13,073	$ 8,858	$ 35,256	$ 30,325
Net earnings per common share—basic and diluted (in dollars per share)	$ 0.69	$ 0.46	$ 1.85	$ 1.59
Weighted average common shares outstanding—basic and diluted (in shares)	19,084	19,084	19,084	19,084
Cash dividends declared per common share (in dollars per share)	$ 0.40	$ 0.40	$ 1.20	$ 1.20