Leases - Narrative (Details) $ in Thousands	Dec. 31, 2019 USD ($) property
Lessor, Lease, Description [Line Items]
Number of properties subject to ground leases | property	3
Right of use assets	$ 29,307
Ground lease liabilities	$ 29,307
Weighted average discount rate	4.50%
Weighted average remaining lease term (in years)	50 years 3 months 18 days
Minimum
Lessor, Lease, Description [Line Items]
Term of contract, lessor	1 year
Maximum
Lessor, Lease, Description [Line Items]
Term of contract, lessor	21 years