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Commitments and Contingencies (Ground Rent) (Details) (Ground Rent [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Ground Rent [Member]
 
Long-term Purchase Commitment [Line Items]  
2014 (nine months remaining) $ 1,062
2014 1,415
2015 1,415
2016 1,415
2017 1,415
Thereafter 61,666
Operating Leases, Future Minimum Payments Due $ 68,388