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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Stockholders' Equity

		Common Stock												Treasury Stock
(number of shares in thousands)		2013				2012				2011				2013				2012				2011
At January 1			29,555				29,555				29,555				6,222				6,507				5,851
Exercise of options			0				0				0				(632	)			(333	)			(236	)
Acquisition-related stock issued			0				0				0				(471	)			0				0
Stock purchases			0				0				0				89				48				1,087
Settlement of NewMarket Corporation civil complaint			0				0				0				0				0				(195	)
At December 31			29,555				29,555				29,555				5,208				6,222				6,507

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- Definition

Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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