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Fair Value Measurements - Long-Lived Assets Measured at Fair Value (Details) | 3 Months Ended |
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Mar. 31, 2021 USD ($) mall | Mar. 31, 2022 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Fair Value | $ 38,500,000 |
Loss on impairment | $ 57,182,000 |
Number of malls with impairment | mall | 3 |
Malls |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Fair Value | $ 38,500,000 |
Loss on impairment | 57,182,000 |
Significant Unobservable Inputs (Level 3) |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Fair Value | 38,500,000 |
Greenbrier Mall |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Fair Value |  | $ 0
Eastland Mall | Malls |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Fair Value | 10,700,000 |
Loss on impairment | $ 13,243,000 |
Eastland Mall | Malls | Measurement Input, Expected Term |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Holding period | 9 years |
Eastland 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 |
Eastland 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) | 15.0 |
Old Hickory Mall | Malls |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Fair Value | $ 12,400,000 |
Loss on impairment | $ 20,149,000 |
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] |  |
Fair Value | $ 15,400,000 |
Loss on impairment | $ 23,790,000 |
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 |
Asheville Mall and Park Plaza |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Fair Value | $ 0 |

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