Consolidated Statements of Changes in Shareholders' Equity (parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Common Stock, Dividends, Per Share, Cash Paid	$ 0.48	$ 0.48
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0	0
Stock Issued During Period, Shares, Restricted Stock Award, Gross	539,132	588,765
Treasury Stock, Shares, Acquired	200,898	186,695
Stock Issued During Period, Shares, Treasury Stock Reissued	174,597	86,174