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Commitments and Contingencies (Future Minimum Ground Lease Payments) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]        
Operating Leases, Rent Expense $ 200 $ 100 $ 300 $ 300
July 1, 2016 to December 31, 2016 255   255  
2017 514   514  
2018 524   524  
2019 535   535  
2020 546   546  
Thereafter 9,376   9,376  
Total $ 11,750   $ 11,750