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Equity And Noncontrolling Interests (Cumulative Redeemable Preferred Stock) (Details) (8-1/2% Series A Cumulative Redeemable Shares [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
8-1/2% Series A Cumulative Redeemable Shares [Member]
   
Equity And Noncontrolling Interests [Line Items]    
Outstanding Shares 868 868
Liquidation Preference $ 50.00 $ 50
Optional Redemption Date Oct. 01, 2026 [1]  
Redemption Price $ 50.00 [1]  
Stated Dividend Yield 8.50%  
Approximate Dividend Rate $ 4.25  
[1] The redemption price is the price at which the preferred stock is redeemable, at the Company's option, for cash.