Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Components of property, plant and equipment

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

(in thousands)	September 30, 2018		December 31, 2017		September 30, 2017
Land	$	29,545	$	22,388	$	23,342
Land improvements and leasehold improvements	68,859		69,127		71,559
Buildings and storage facilities	282,826		284,820		298,951
Machinery and equipment	380,109		373,127		384,422
Construction in progress	65,539		7,502		7,703
	826,878		756,964		785,977
Less: accumulated depreciation	392,373		372,287		366,629
	$	434,505	$	384,677	$	419,348

Components of railcar assets leased to others

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

(in thousands)	September 30, 2018		December 31, 2017		September 30, 2017
Rail Group assets leased to others	$	576,622	$	531,391	$	484,214
Less: accumulated depreciation	111,846		107,948		106,821
	$	464,776	$	423,443	$	377,393