Leases - Additional Information (Details)	9 Months Ended
	Sep. 30, 2020 property extension lease
Lessee, Lease, Description [Line Items]
Number of ground leases	8
Number of properties subject to ground leases | property	7
Maximum optional ground lease extension term	70 years
Number of operating leases	6
Number of finance leases	2
Number of options to extend, more than | extension	1
Minimum
Lessee, Lease, Description [Line Items]
Term of contract	5 years
Renewal term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Term of contract	65 years
Renewal term	15 years