Noncontrolling Interests In Subsidiaries (Narrative) (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Noncontrolling Interest [Line Items]    
Number of common shares received upon redemption of common units 1  
Rebalance of ownership percentage $ 45,000  
Percentage of noncontrolling interest 11.00% 11.10%
Participation Rights [Member]    
Noncontrolling Interest [Line Items]    
Number of properties 3  
Excess net cash flow remaining after the distribution to the Company 50.00%  
Internal rate of return 10.00%  
Future Developments [Member] | Participation Rights [Member]    
Noncontrolling Interest [Line Items]    
Number of properties 1