Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

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



	December 31, 2012			December 31, 2011
Manufacturing equipment	$	174,353		$	170,304
Land	8,101			8,101
Buildings and improvements	53,792			53,539
Office furniture and research equipment	20,241			17,834
	256,487			249,778
Accumulated depreciation	(195,795		)	(188,894		)
Total property, plant and equipment, net	$	60,692		$	60,884

- 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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