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Organization and Basis of Presentation Impaired Intangible Assets (Narrative) (Details) (Change in Fair Value from Asset Impairment [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Change in Fair Value from Asset Impairment [Member]
Impaired Intangible Assets [Line Items]
Impairment of intangible assets, finite-lived	$ 1.6

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275

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