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

9 Months Ended

Sep. 30, 2018

Components of property, plant and equipment

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

	September 30, 2018			December 31, 2017
	(in thousands)
Operations / Corporate:
Buildings	$	189,009		$	186,664
Machinery and equipment	231,849			233,025
Land	5,372			5,285
Construction in process	3,437			1,818
	429,667			426,792
Less accumulated depreciation	(276,537		)	(264,257		)
Property, plant and equipment, net	$	153,130		$	162,535
Railcar Leasing:
Railcars on lease	$	1,231,158		$	1,159,868
Less accumulated depreciation	(153,390		)	(123,454		)
Railcars on lease, net	$	1,077,768		$	1,036,414

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

As of September 30, 2018, 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 2018	$	31,994
2019	113,586
2020	79,997
2021	61,449
2022	41,729
2023 and thereafter	95,799
Total	424,554

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,
	2018		2017		2018		2017
	(in thousands)
Total depreciation expense	$	15,760	$	14,572	$	46,333	$	42,746
Depreciation expense on leased railcars	$	10,377	$	8,964	$	29,966	$	25,859