Quarterly report pursuant to Section 13 or 15(d)

Mortgage Notes Payable (Details)

v2.4.0.8
Mortgage Notes Payable (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended 1 Months Ended 1 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Feb. 28, 2014
Mortgage Note Payable
Yale West
Feb. 21, 2014
Mortgage Note Payable
Yale West
Mar. 31, 2014
Mortgage Note Payable
The Army Navy Club Building
Sep. 30, 2014
Mortgage Note Payable
The Army Navy Club Building
Mar. 26, 2014
Mortgage Note Payable
The Army Navy Club Building
Debt Instrument [Line Items]              
Noncash or Part Noncash Acquisition, Debt Assumed $ 100,861 $ 0 $ 48,200   $ 52,700    
Interest rate, stated percentage     5.55%     3.45%  
Debt Instrument, Interest Rate, Basis for Effective Rate       3.75%     3.18%
Mortgage notes payable, Fair Value     $ 54,000     $ 53,200