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Consolidated Statements of Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements of Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 0.80	$ 0.76	$ 0.72
Treasury stock, shares issued (in shares)		286,802	482,144

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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