Real Estate (Intangible Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Intangible lease liabilities (included in other liabilities):
Below-market in-place leases	$ 41,767	$ 41,554
Less: accumulated amortization	(26,135)	(25,258)
Below-market in-place leases, net	15,632	16,296
Above-market in-place leases, net
Intangible lease assets (included in other assets):
Leases	15,754	15,175
Less: accumulated amortization	(9,897)	(9,239)
Leases, net	5,857	5,936
In-place leases, net
Intangible lease assets (included in other assets):
Leases	119,846	104,871
Less: accumulated amortization	(64,918)	(60,797)
Leases, net	$ 54,928	$ 44,074