Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2017

Property, Plant and Equipment [Abstract]

Components of property, plant and equipment

The components of Property, plant and equipment, net are as follows:

(in thousands)	March 31, 2017		December 31, 2016		March 31, 2016
Land	$	29,331	$	30,672	$	30,138
Land improvements and leasehold improvements	78,798		79,631		77,531
Buildings and storage facilities	321,344		322,856		304,276
Machinery and equipment	388,230		392,418		377,879
Construction in progress	13,113		12,784		47,755
	830,816		838,361		837,579
Less: accumulated depreciation	390,421		388,309		374,918
	$	440,395	$	450,052	$	462,661

Components of railcar assets leased to others

The components of Rail Group assets leased to others are as follows:

(in thousands)	March 31, 2017		December 31, 2016		March 31, 2016
Rail Group assets leased to others	$	448,761	$	431,571	$	436,948
Less: accumulated depreciation	105,825		104,376		99,287
	$	342,936	$	327,195	$	337,661