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Recent Accounting Pronouncements (Policy)	12 Months Ended
	Dec. 31, 2012
Recent Accounting Pronouncements [Abstract]
Presentation Of Comprehensive Income	Presentation of Comprehensive Income In June 2011, the FASB issued guidance that requires an entity to present the total of comprehensive income, the components of net income and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements.  The option to present the components of other comprehensive income as part of the statement has been eliminated.  This guidance was effective for us in the first quarter of 2012 and should be applied prospectively.  Our presentation of comprehensive income already complies with this new guidance.
Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income	Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income In February 2013, the FASB issued guidance related to items reclassified from accumulated other comprehensive income. The new standard requires either in a single note or parenthetically on the face of the financial statements: (i) the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its sources and (ii) the income statement line items affected by the reclassification.  The standard is effective for us January 1, 2013, with early adoption permitted.  We do not expect this guidance to have a significant impact on our consolidated financial position, results of operations or cash flows.

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- Definition

Disclosure of accounting policy for comprehensive income.

+ References

No definition available.

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- Definition

The entire disclosure for a new accounting pronouncement that has been issued but not yet adopted.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 250

-SubTopic 10

-Section S99

-Paragraph 5

-Subparagraph (SAB TOPIC 11.M)

-URI http://asc.fasb.org/extlink&oid=6369664&loc=d3e31137-122693



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 11

-Section M

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