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Property, Plant And Equipment (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Property, Plant And Equipment [Abstract]
Depreciation of property, plant and equipment	$ 31.3	$ 35.4

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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