v2.4.0.6
Noncontrolling Interests (Schedule Of Noncontrolling Interest) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Noncontrolling Interest [Line Items]      
Ownership interest with other equity investors, Amount $ 0   $ 0
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]      
Balance, Beginning 3,991    
Net income (loss) attributable to noncontrolling interest 38,607 53,641  
Balance, Ending 3,747    
Angus Fund [Member]
     
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]      
Balance, Beginning 3,991 3,340  
Sale of shares to noncontrolling interest 0 300  
Adjustment of ownership interest 139 0  
Net income (loss) attributable to noncontrolling interest (208) 293  
Dividends on common shares (175) (41)  
Balance, Ending 3,747 3,892  
REAL [Member] | Angus Fund [Member]
     
Noncontrolling Interest [Line Items]      
Ownership interest with other equity investors, Amount 55   55
Parent company ownership in redeemable noncontrolling interest 1.10%   1.10%
RRCA [Member] | Angus Fund [Member]
     
Noncontrolling Interest [Line Items]      
Ownership interest with other equity investors, Amount $ 2,000 $ 2,000  
Parent company ownership in redeemable noncontrolling interest 35.20%   35.10%