Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Property Subject To Or Available For Operating Lease [Line Items]

Summary of remaining principal payments under existing debt agreements

As of December 31, 2015, the principal payments remaining on the Notes were as follows:

	Payments due by Period
	2016		2017		2018		2019		2020		Thereafter
	(in thousands)
Notes	$	25,783	$	25,588	$	25,590	$	25,507	$	26,354	$	472,974

Lease Fleet Financing [Member]

Property Subject To Or Available For Operating Lease [Line Items]

Summary of future contractual minimum rental revenues required under non-cancellable operating leases for railcars

The future contractual minimum rental revenues related to the railcars pledged under all Lease Fleet Financings as of December 31, 2015 were as follows (in thousands).

2016	$	83,293
2017	68,352
2018	55,015
2019	39,609
2020	21,079
2021 and thereafter	22,528
Total	$	289,876