Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Base Cash rental payments Due from Company under Office and Ground Leases

As of December 31, 2018, the future minimum base cash rental payments due from the Company under the office and ground leases where the Company is responsible for payment and the future minimum base cash rental payments under the ground leases where the Company’s tenants are responsible for payment over the next five years and thereafter are as follows:

(in thousands)	Office and Ground Leases to be Paid by the Company		Ground Leases to be Paid Directly by the Company’s Tenants		Total Future Minimum Base Rental Payments
2019	$	893	$	492	$	1,385
2020		759		328		1,087
2021		680		331		1,011
2022		669		327		996
2023		656		26		682
Thereafter		1,093		—		1,093
Total	$	4,750	$	1,504	$	6,254