Shareholders' Equity And Earnings Per Share (Market Value Of Company Common Stock And Settlement Rate) (Details) (USD $)	6 Months Ended
	Jun. 30, 2011
Market Value of Common Stock Less than or Equal to 30 Dollars [Member]
Settlement Rate	$ 1.6666
Market Value of Common Stock Greater than 30 Dollars but Less than Thirty 37.50 Dollars [Member]
Settlement Rate, Market Value	50.00
Market Value of Common Stock Greater than or equal to 37.50 Dollars [Member]
Settlement Rate	$ 1.3333