Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 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)	June 30, 2017		December 31, 2016		June 30, 2016
Land	$	23,566	$	30,672	$	28,472
Land improvements and leasehold improvements	71,236		79,631		77,849
Buildings and storage facilities	298,077		322,856		290,528
Machinery and equipment	382,321		392,418		374,107
Construction in progress	7,372		12,784		51,672
	782,572		838,361		822,628
Less: accumulated depreciation	359,530		388,309		375,361
	$	423,042	$	450,052	$	447,267

Components of railcar assets leased to others

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

(in thousands)	June 30, 2017		December 31, 2016		June 30, 2016
Rail Group assets leased to others	$	482,524	$	431,571	$	442,239
Less: accumulated depreciation	107,432		104,376		102,103
	$	375,092	$	327,195	$	340,136