Commitments and Contingencies - Future Minimum Rental Payments Under Non-Cancelable Ground and Operating Leases (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2017	$ 2,052
2018	1,349
2019	675
2020	579
2021	534
Thereafter	25,413
Total	$ 30,602	[1]

[1] Minimum rental payments have not been reduced by minimum sublease rentals of $2,335 due in the future under non-cancelable subleases.