Real Estate (Intangible Assets and Liabilities) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Intangible lease liabilities (included in other liabilities):
Below-market in-place leases	$ 41,160,000		$ 41,705,000
Less: accumulated amortization	(27,214,000)		(27,447,000)
Below-market in-place leases, net	13,946,000		14,258,000
Above-market in-place leases
Intangible lease assets (included in other assets):
Leases	15,335,000		15,335,000
Less: accumulated amortization	10,993,000		10,821,000
Leases, net	4,342,000		4,514,000
In-place leases
Intangible lease assets (included in other assets):
Leases	121,431,000		122,069,000
Less: accumulated amortization	74,480,000		73,345,000
Leases, net	46,951,000		$ 48,724,000
Intangible lease liabilities (included in other liabilities):
Amortization expense, in-place leases	1,773,000	$ 1,800,000
Above-market and below-market in-place leases
Intangible lease liabilities (included in other liabilities):
Amortization expense, above- and below-market leases	$ 1,400,000	$ 162,000