Related Parties (Net accretion periods) (Details)		12 Months Ended
	Dec. 11, 2020	Dec. 31, 2020	Dec. 31, 2019
Leases, Acquired-in-Place [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years 9 months 18 days	11 years
Above Market Leases [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years 1 month 6 days	7 years 2 months 12 days
Partnership interest | Village Plaza at Bunker Hill | Leases, Acquired-in-Place [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 7 months 6 days
Partnership interest | Village Plaza at Bunker Hill | Above Market Leases [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 2 months 12 days
Partnership interest | Village Plaza at Bunker Hill | Below Market Leases [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years
Partnership interest | Village Plaza at Bunker Hill | Above-Market Assumed Mortgages [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years 7 months 6 days