Consolidated Balance Sheet (Parenthetical) (Unaudited) (USD $)	1 Months Ended	6 Months Ended	12 Months Ended
	Jul. 31, 2010	Jun. 30, 2011	Dec. 31, 2010
SHAREHOLDERS' EQUITY:
Preferred stock, par value		$ 0	$ 0
Preferred stock, shares authorized		10,000,000	10,000,000
Cumulative preferred stock interest rate	6.00%	6.00%	6.00%
Preferred stock, liquidation preference per share		$ 1,000	$ 1,000
Preferred stock, shares issued		1,265,000	1,265,000
Preferred stock, shares outstanding	1,265,000	1,265,000	1,265,000
Common stock, par value		$ 0.625	$ 0.625
Common stock, shares authorized		860,000,000	860,000,000
Common stock, shares issued	26,450,000	384,983,055	383,668,297
Treasury stock, shares		1,147,641	1,276,555