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Acquisitions and Divestitures (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Held for Sale
Current assets	$ 0	$ 3,460
Property, plant & equipment, net	0	9,625
Other assets	0	122
Total assets held for sale	0	13,207
Current liabilities	0	116
Total liabilities of assets held for sale	$ 0	$ 116

Liability (such as a mortgage) related to a disposal group that is held for sale and anticipated to be sold in less than one year. The liability is expected to be discharged as part of the plan of sale for the asset.

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- Definition

The lower of the carrying value or fair value less cost to sell of current assets held for sale that are not elsewhere specified in the taxonomy. The carrying value of major classes of assets and liabilities of the disposal group are separately disclosed in the balance sheet in the specific concepts provided.

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