Fair Value Measurements - Long-Lived Assets Measured at Fair Value (Details) $ in Thousands	1 Months Ended	2 Months Ended	10 Months Ended	12 Months Ended
	Jul. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Oct. 31, 2021 USD ($) mall	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) mall community_center	Dec. 31, 2019 USD ($) mall
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			$ 146,781	$ 146,781	$ 213,358	$ 239,521
Number of malls with impairment \| mall			5		6	6
Long-lived assets		$ 120,290	$ 120,290	$ 120,290	$ 268,830	$ 199,740
Fair Value						118,383
Number of community center with impairment \| community_center					1
Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment		$ 0	146,781
Eastland Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			13,243
Long-lived assets			10,700
Old Hickory Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			20,149
Long-lived assets			$ 12,400
Old Hickory Mall \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period			9 years
Old Hickory Mall \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			13.0
Old Hickory Mall \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			14.0
Stroud Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			$ 23,790
Long-lived assets			$ 15,400
Stroud Mall \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period			9 years
Stroud Mall \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			11.75
Stroud Mall \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			12.5
The Landing at Arbor Place - Outparcel
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	$ 590
The Landing at Arbor Place - Outparcel \| All Other
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			$ 1,682
Long-lived assets			590
Laurel Park Place \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			14,267			52,067
Long-lived assets			$ 9,800			$ 26,000
Laurel Park Place \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period			9 years			10 years
Laurel Park Place \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			11.5			13.5
Laurel Park Place \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			13.0			14.0
Parkdale Mall & Crossing \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Long-lived assets			$ 50,500
Parkdale Mall & Crossing \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period			10 years
Parkdale Mall & Crossing \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			12.3
Parkdale Mall & Crossing \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			14.2
Parkdale Mall & Crossing \| Malls/All Other
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			$ 47,211
Long-lived assets			50,500
The Outlet Shoppes at Gettysburg \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			21,470
Long-lived assets			$ 16,660
The Outlet Shoppes at Gettysburg \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period			9 years
The Outlet Shoppes at Gettysburg \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			11.0
The Outlet Shoppes at Gettysburg \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			12.0
Vacant land \| All Other
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment			$ 4,969
Long-lived assets			4,240
Assets book value			4,240
Burnsville Center \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment					$ 26,562
Long-lived assets			$ 10,700		$ 47,300
Burnsville Center \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period			9 years		10 years
Burnsville Center \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			14.0		14.5
Burnsville Center \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)			15.0		15.5
Monroeville Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment					$ 107,082
Long-lived assets					$ 67,000
Monroeville Mall \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period					10 years
Monroeville Mall \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					14.0
Monroeville Mall \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					14.5
Asheville Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment					$ 13,274
Long-lived assets					$ 52,600
Asheville Mall \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period					10 years
Asheville Mall \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					13.25
Asheville Mall \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					14.0
Vacant Land \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment					$ 46
EastGate Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment					5,980	$ 33,265
Long-lived assets					$ 16,530	$ 25,100
EastGate Mall \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period					10 years	10 years
EastGate Mall \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					17.0	14.5
EastGate Mall \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					18.0	15.0
Greenbrier Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment					$ 8,923	$ 22,770
Long-lived assets					$ 42,500	$ 56,300
Greenbrier Mall \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period					10 years	10 years
Greenbrier Mall \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					12.5	11.5
Greenbrier Mall \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					13.0	11.5
The Outlet Shoppes at Laredo \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment					$ 51,491
Long-lived assets					$ 42,900
The Outlet Shoppes at Laredo \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period					10 years
The Outlet Shoppes at Laredo \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					8.5
The Outlet Shoppes at Laredo \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)					9.0
Honey Creek Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment						$ 2,045
Assets book value						14,360
The Forumat Grandview \| All Other
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment						8,582
Assets book value						31,559
Mid Rivers Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment						83,621
Long-lived assets						$ 53,340
Mid Rivers Mall \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period						10 years
Mid Rivers Mall \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)						12.5
Mid Rivers Mall \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)						13.25
Park Plaza Mall \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment						$ 37,400
Long-lived assets						$ 39,000
Park Plaza Mall \| Malls \| Measurement Input, Expected Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Holding period						10 years
Park Plaza Mall \| Malls \| Cap Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)						13.0
Park Plaza Mall \| Malls \| Discount Rate (as a percent)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value measurement input (as a percent)						14.0
Prior Sales Adjustment \| Malls
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loss on impairment						$ (229)