Property, Plant and Equipment (Tables)

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

- Definition

Tabular disclosure of the useful life and salvage value of 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.

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