Quarterly report pursuant to Section 13 or 15(d)

Mortgages Payable (Summary Of The Debt Obligations And Interest Rate Derivatives) (Details)

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Mortgages Payable (Summary Of The Debt Obligations And Interest Rate Derivatives) (Details) (USD $)
In Thousands
Sep. 30, 2011
Dec. 31, 2010
Debt Instrument [Line Items]    
Line of credit $ 114,000 $ 10,000
Term notes 475,000 400,000
Mortgage note, total 74,182 78,954
Interest rate derivatives - liability 8,649 10,528
Line of Credit - Variable Rate LIBOR + 2.0% (2.23% at September 30, 2011) [Member]
   
Debt Instrument [Line Items]    
Line of credit 114,000  
Debt Instrument, Fair Value 114,000  
Payables due thereafter 114,000  
Term Note - Variable Rate LIBOR+2.0% (2.23% at September 30, 2011) [Member]
   
Debt Instrument [Line Items]    
Payables due thereafter 125,000  
Term notes 125,000  
Term note, fair value 125,000  
Term Note - Variable Rate LIBOR+1.50% (1.99% at September 30, 2011) [Member]
   
Debt Instrument [Line Items]    
Payables due 2013 20,000  
Term notes 20,000  
Term note, fair value 20,000  
Term Note - Fixed Rate 6.26% [Member]
   
Debt Instrument [Line Items]    
Payables due 2013 80,000  
Term notes 80,000  
Term note, fair value 84,627  
Term Note - Fixed Rate 6.38% [Member]
   
Debt Instrument [Line Items]    
Payables due thereafter 150,000  
Term notes 150,000  
Term note, fair value 162,781  
Term Note - Fixed Rate 5.54% [Member]
   
Debt Instrument [Line Items]    
Payables due thereafter 100,000  
Term notes 100,000  
Term note, fair value 95,709  
7.80% Mortgage Note Due December 2011 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Fair Value 27,514  
Payables due 2011 27,315  
Mortgage note, total 27,315 27,817
7.19% Mortgage Note Due March 2012 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Fair Value 39,871  
Payables due 2011 336  
Payables due 2012 38,963  
Mortgage note, total 39,299 40,264
7.25% Mortgage Note Due December 2011 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Fair Value 3,113  
Payables due 2011 3,103  
Mortgage note, total 3,103 3,220
6.76% Mortgage Note Due September 2013 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Fair Value 976  
Payables due 2011 7  
Payables due 2012 29  
Payables due 2013 896  
Mortgage note, total 932 952
6.35% Mortgage Note Due March 2014 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Fair Value 1,067  
Payables due 2011 8  
Payables due 2012 31  
Payables due 2013 34  
Payables due 2014 949  
Mortgage note, total 1,022 1,044
5.99% Mortgage Note Due May 2026 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Fair Value 2,522  
Payables due 2011 27  
Payables due 2012 112  
Payables due 2013 119  
Payables due 2014 126  
Payables due 2015 134  
Payables due thereafter 1,993  
Mortgage note, total $ 2,511