Condensed Consolidated Statements of Operations (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues from affiliates included in manufacturing		$ 137	$ 223	$ 137	$ 776
Revenues from affiliates included in railcar services		4,369	7,249	10,516	15,243
Revenues From Affiliates Included In Leasing	$ 223			447	0
Interest income from related parties		$ 306	$ 427	$ 642	$ 884