Property, Plant and Equipment

3 Months Ended

Mar. 31, 2013

Property, Plant and Equipment [Abstract]

Property, plant and equipment consisted of the following (in thousands):



	March 31, 2013			December 31, 2012
Manufacturing equipment	$	174,588		$	174,353
Land	8,101			8,101
Buildings and improvements	54,081			53,792
Office furniture and research equipment	20,444			20,241
	257,214			256,487
Accumulated depreciation	(198,828		)	(195,795		)
Total property, plant and equipment, net	$	58,386		$	60,692

Depreciation expense for the three months ended March 31, 2013 and 2012 was $3.0 million and $2.7 million, 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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