Property, Plant and Equipment

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

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



	December 31,
(in thousands)	2012		2011
Land	$	22,258	$	17,655
Land improvements and leasehold improvements	63,013		47,958
Buildings and storage facilities	214,919		150,461
Machinery and equipment	287,896		191,833
Software	12,901		10,861
Construction in progress	34,965		13,006
	635,952		431,774
Less: accumulated depreciation and amortization	277,074		256,687
	$	358,878	$	175,087

Depreciation expense on property, plant and equipment amounted to $27.4 million, $20.4 million and

$18.7 million for the years ended 2012, 2011 and 2010, respectively.

Railcars

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



	December 31,
(in thousands)	2012		2011
Railcar assets leased to others	$	310,614	$	272,883
Less: accumulated depreciation	82,284		75,746
	$	228,330	$	197,137

Depreciation expense on railcar assets leased to others amounted to $15.9 million, $13.8 million and $14.0 million for the years ended 2012, 2011 and 2010, 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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