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Fair Value Measurements (Narrative) (Details) | Jun. 30, 2022 USD ($) property | Dec. 31, 2021 USD ($)
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of fixed rate mortgage loans payable | $ 146,400,000 | $ 159,000,000.0
Carrying value of fixed rate mortgage payable | $ 156,400,000 | 156,800,000
Number of properties | property | 17 |
Real estate held for sale | $ 719,312,000 | $ 757,037,000
Level 2 [Member] | Assets [Member] | Retail Properties [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Number of properties | property | 36 |
Real estate held for sale | $ 719,300,000 |

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