Rent Expense (Tables)

9 Months Ended

Sep. 30, 2019

Leases [Abstract]

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

As of September 30, 2019, the future minimum lease obligations under non-cancelable parking, air, ground, and corporate leases, were as follows (in thousands):

2019	$	708
2020	3,121
2021	3,108
2022	3,079
2023	3,066
Thereafter	144,557
Total undiscounted lease payments	$	157,639
Less: Interest	(94,304		)
Present value of lease liabilities	$	63,335

Lease cost

Lease costs consisted of the following for the three and nine months ended September 30, 2019 (in thousands):

	Three Months Ended September 30, 2019		Nine Months Ended September 30, 2019
Operating lease cost	$	437	$	1,365
Variable lease cost	249		724
Total lease cost	$	686	$	2,089