Property, Plant, and Equipment

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property, plant and equipment, at December 31, consist of the following:



	2013			2012
Land and improvements	$	16,021		$	13,021
Buildings and improvements	340,609			324,497
Machinery and equipment	1,464,532			1,404,928
Construction in progress	221,101			175,283
	2,042,263			1,917,729
Less accumulated depreciation	(794,602		)	(729,515		)
Property, plant and equipment - net	$	1,247,661		$	1,188,214

For the years ended December 31, 2013, 2012 and 2011, we recorded depreciation expense of $66,570, $62,570 and $62,194, respectively.

At December 31, 2013 and 2012, the cost of property, plant and equipment includes $179,702 and $178,528, respectively, and accumulated depreciation includes $119,275 and $113,174, respectively, representing our undivided interest in the property, plant and equipment comprising Mt. Holly.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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