Commitments And Contingencies (Future Minimum Rental Payments Of Ground Leases) (Details) $ in Thousands |
Mar. 31, 2017
USD ($)
|
|---|---|
| Commitments And Contingencies [Abstract] | |
| April 1 through December 31, 2017 | $ 1,518 |
| 2018 | 1,989 |
| 2019 | 1,999 |
| 2020 | 2,015 |
| 2021 | 2,015 |
| 2022 through 2084 | 170,248 |
| Total | $ 179,784 |