Property, Plant and Equipment

6 Months Ended

Jun. 30, 2013

Property, Plant and Equipment [Abstract]

The components of property, plant and equipment are as follows:



(in thousands)	June 30, 2013		December 31, 2012		June 30, 2012
Land	$	22,637	$	22,258	$	19,505
Land improvements and leasehold improvements	65,625		63,013		52,536
Buildings and storage facilities	224,281		214,919		172,354
Machinery and equipment	295,723		287,896		243,216
Software	13,469		12,901		11,204
Construction in progress	44,146		34,965		33,613
	665,881		635,952		532,428
Less accumulated depreciation and amortization	294,165		277,074		266,153
	$	371,716	$	358,878	$	266,275

Depreciation expense on property, plant and equipment amounted to $18.5 million, $27.4 million and $12.0 million for the year-to-date periods ended June 30, 2013, December 31, 2012, and June 30, 2012, respectively.

Railcars

The components of Railcar assets leased to others are as follows:



(in thousands)	June 30, 2013		December 31, 2012		June 30, 2012
Railcar assets leased to others	$	321,269	$	310,614	$	332,997
Less accumulated depreciation	78,382		82,284		80,032
	$	242,887	$	228,330	$	252,965

Depreciation expense on railcar assets leased to others amounted to $7.4 million, $15.9 million and $7.8 million for the year-to-date periods ended June 30, 2013, December 31, 2012 and June 30, 2012, respectively.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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