Property, Plant, and Equipment

12 Months Ended

Dec. 31, 2011

(6) Property, Plant, and Equipment

A summary of costs for property, plant, and equipment is as follows:

	December 31,

	2011		2010
	(in thousands)
Land and improvements	$	26,136	$	19,228
Buildings		37,289		25,663
Machinery and equipment		1,967,269		1,363,877
Automotive equipment		10,217		8,747
Furniture and fixtures		12,349		9,279
Leasehold improvements		1,445		1,253
Railcars		2,496		—
Construction in progress		94,085		42,674

		2,151,286		1,470,721
Accumulated depreciation		478,325		389,409

	$	1,672,961	$	1,081,312

Capitalized interest recognized as a reduction in interest expense for the years ended December 31, 2011, 2010 and 2009 totaled approximately $3.9 million, $1.8 million and $2.0 million, respectively. Land, building and equipment that are under a capital lease obligation had an original carrying value of approximately $24.9 million and $5.2 million as of December 31, 2011 and 2010. Amortization of assets held under capital leases is included in depreciation expense.

- 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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