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Debt (Tables)
 9 Months Ended
Sep. 30, 2015
Debt  
Schedule of fair value of financial instruments and the related discount rate assumptions

                                                                                                                                                                                    

 

 

September 30,
2015

 

December 31,
2014

 

Fair value of fixed-rate mortgages and unsecured indebtedness

 

$
21,672 

 

$
20,558 

 

Weighted average discount rates assumed in calculation of fair value of fixed-rate mortgages

 

 
2.69 

%

 
3.02 

%