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Equity-Method Investment And Other Assets (Narrative) (Details) (USD $)
6 Months Ended 9 Months Ended
Jun. 30, 2014
properties
Jun. 30, 2013
Jun. 30, 2014
properties
Dec. 31, 2013
Investment [Line Items]        
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity   $ 8,986,000    
Number of Real Estate Properties 162   162  
Net Assets Received In Acquisition of Equity-Method Investee 0 817,000    
Variable Interest Entity, Financial or Other Support, Amount     0  
Proceeds from Equity Method Investment, Dividends or Distributions 0 0    
Lease escrow deposits 22,775,000   22,775,000 22,775,000
Payments for Delayed Tax Exempt Exchange 23,813,000      
Bickford Senior Living [Member]
       
Investment [Line Items]        
Number of Real Estate Properties   17    
Lease Security [Member]
       
Investment [Line Items]        
Lease escrow deposits 21,275,000   21,275,000  
Capital Improvements Reserve [Member]
       
Investment [Line Items]        
Lease escrow deposits $ 1,500,000   $ 1,500,000  
Holiday Acquisition Holdings [Member]
       
Investment [Line Items]        
Number of Real Estate Properties 25   25  
Lessor Leasing Arrangements, Operating Leases, Term of Contract 17 years 0 months 0 days