Impact of COVID-19 - Narrative (Details)	3 Months Ended	14 Months Ended
	Dec. 31, 2020	Feb. 22, 2022
Subsequent Event [Line Items]
Rent deferral period	3 months
Subsequent Event
Subsequent Event [Line Items]
Deferred Rent, Percent Due		0
Contractual Base Rent, Operating Expense And Real Estate Recoveries Collected | Revenue
Subsequent Event [Line Items]
Percentage of total revenue	94.00%
Operating lease income subject to deferral agreements | Outstanding Billings | Revenue
Subsequent Event [Line Items]
Percentage of total revenue	0.50%
Operating lease income subject to deferral agreements | April, May, June 2020 unpaid balance as percent of total unpaid balance | Revenue
Subsequent Event [Line Items]
Percentage of total revenue	9.00%
Retail Real Estate | Contractual Base Rent, Operating Expense And Real Estate Recoveries Collected | Revenue
Subsequent Event [Line Items]
Percentage of total revenue	94.00%
Office Real Estate | Contractual Base Rent, Operating Expense And Real Estate Recoveries Collected | Revenue
Subsequent Event [Line Items]
Percentage of total revenue	93.00%
Residential Real Estate | Contractual Base Rent, Operating Expense And Real Estate Recoveries Collected | Revenue
Subsequent Event [Line Items]
Percentage of total revenue	100.00%