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Intangibles (Net of Amortization) and Goodwill (Narrative) (Details) (USD $)			3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Customer Bases [Member]	Mar. 31, 2013 Trademarks And Trade Names [Member]	Mar. 31, 2013 Minimum [Member] Contracts [Member]	Mar. 31, 2013 Minimum [Member] Formulas And Technology [Member]	Mar. 31, 2013 Maximum [Member] Contracts [Member]	Mar. 31, 2013 Maximum [Member] Formulas And Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated goodwill impairment	$ 0	$ 0
Estimated economic life, in years			20 years	10 years	1 year 6 months	5 years	10 years	20 years

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The accumulated impairment losses related to goodwill as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a,h)

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

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