XML 57 R7.htm IDEA: XBRL DOCUMENT v2.4.0.6
CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) (USD $)
 12 Months Ended
Dec. 31, 2010
Dec. 31, 2009
Common stock cash distributions (in dollars per share) $ 1.58 $ 1.56
Series E Preferred Stock | Preferred Stock
    
Conversion of preferred stock, partial and full redemption (as a percent) 8.50% 8.50%
Series F Preferred Stock | Preferred Stock
    
Conversion of preferred stock, partial and full redemption (as a percent) 8.00%