Acquisition of Real Estate (Purchase Price) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2020
Above market leases
Liabilities
Amortization period	10 years 4 months 24 days
Leases, acquired-in-place
Liabilities
Amortization period	8 years 9 months 18 days
Below market leases
Liabilities
Amortization period	24 years 3 months 18 days
Acquired Properties
Assets
Land	$ 25,953	$ 2,020
Buildings	45,781	0
Building and tenant improvements	5,832	0
Above-market rents	155	0
In-place leases	6,923	0
Total assets	84,644	2,020
Liabilities
Below-market leases	5,010	0
Other liabilities	0	0
Total liabilities	5,010	0
Net assets acquired	$ 79,634	$ 2,020