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Property, Plant and Equipment - Narrative (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]
Capital Leased Assets Gross	$ 1,275	$ 1,297
Accumulated Depreciation, Leased Assets	$ 569	$ 766

Property, plant, or equipment held under lease agreements classified as an asset.

The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.