Property, Plant and Equipment and Railcars on Leases, net (Tables)

9 Months Ended

Sep. 30, 2017

Components of property, plant and equipment

The following table summarizes the components of property, plant, equipment and railcars on leases, net:

	September 30, 2017			December 31, 2016
	(in thousands)
Operations / Corporate:
Buildings	$	186,272		$	182,970
Machinery and equipment	233,774			232,171
Land	5,037			4,328
Construction in process	1,363			1,966
	426,446			421,435
Less accumulated depreciation	(260,527		)	(244,384		)
Property, plant and equipment, net	$	165,919		$	177,051
Railcar Leasing:
Railcars on lease	$	1,128,471		$	996,422
Less accumulated depreciation	(114,233		)	(88,412		)
Railcars on lease, net	$	1,014,238		$	908,010

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

As of September 30, 2017, future contractual minimum rental revenues required under non-cancellable operating leases for railcars with terms longer than one year are as follows (in thousands):

Remaining 3 months of 2017	$	33,110
2018	126,837
2019	107,394
2020	70,527
2021	53,354
2022 and thereafter	102,589
Total	493,811

Property, Plant and Equipment, Other Types [Member]

Components of property, plant and equipment

The following table summarizes depreciation expense:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
	(in thousands)
Total depreciation expense	$	14,572	$	13,113	$	42,746	$	38,729
Depreciation expense on leased railcars	$	8,964	$	7,614	$	25,859	$	22,493