Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Lease income and rental expense from operating leases

Lease income from operating leases (with the Company as lessor) to customers (including month-to-month and per diem leases) and rental expense for the Rail Group operating leases (with the Company as lessee) were as follows:

	Year ended December 31,
(in thousands)	2017		2016		2015
Rental and service income - operating leases	$	90,333	$	95,254	$	97,059
Rental expense	$	16,459	$	16,723	$	15,214

Operating leases future minimum rentals and service income

Future minimum rentals and service income for all noncancellable Rail operating leases on transportation assets are as follows:

(in thousands)	Future Rental and Service Income - Operating Leases		Future Minimum Rental Payments
Year ended December 31,
2018	$	67,716	$	11,390
2019	47,005		6,952
2020	29,875		5,100
2021	19,739		4,461
2022	11,901		3,073
Future years	20,784		9,768
	$	197,020	$	40,744