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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Obligations under Ground Leases and Land Permits
The following is a schedule of future obligations under ground leases and land permits (in thousands):
                
2017
$
11,646

2018
11,638

2019
11,594

2020
11,594

2021
11,594

Thereafter
115,637

Total
$
173,703