Rent Expense (Tables)

9 Months Ended

Sep. 30, 2018

Leases [Abstract]

Schedule of future minimum lease obligations under non-cancelable ground leases

As of September 30, 2018, the future minimum lease obligations under non-cancelable parking, air, ground, and office leases, exclusive of the two assets classified as held for sale, were as follows (in thousands):

2018	$	794
2019	3,058
2020	3,013
2021	3,037
2022	3,030
Thereafter	146,119
Total	$	159,051