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Investment In and Advances to Affiliate - Additional Information (Detail) |  | 1 Months Ended | 12 Months Ended |  |
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Jul. 01, 2018 USD ($) ShoppingCenter shares | Oct. 31, 2021 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jun. 26, 2018
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Mortgage debt |  |  | $ 54,577,000 | $ 125,799,000 |
Mortgages |  |  |  |  |
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Mortgage debt |  |  | 54,600,000 | $ 125,800,000 |
Retail Value Inc. [Member] |  |  |  |  |
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Aggregate purchase price |  | $ 1.00 |  |  |
Retail Value Inc. [Member] | Management Agreement [Member] |  |  |  |  |
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Fee and other income |  |  | $ 1,000,000.0 |  |
Retail Value Inc. [Member] | Series A Preferred Stock |  |  |  |  |
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Preferred stock, number of shares issued | shares | 1,000 |  |  |  |
Preferred stock, value | $ 190,000,000.0 |  |  |  |
Distribution Received |  | $ 190,000,000.0 |  |  |
Retail Value Inc. [Member] | Spin-off [Member] |  |  |  |  |
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Number of shopping centers in connection with spinoff | ShoppingCenter | 48 |  |  |  |
Gross asset value | $ 2,700,000,000 |  |  |  |
Percentage of distribution of outstanding common shares rights to holders |  |  |  |  | 100.00%
Spin off distribution description | On the spin-off date, holders of SITE Centers’ common shares received one common share of RVI for every ten shares of SITE Centers’ common stock held on the record date. |  |  |  |
Retail Value Inc. [Member] | Spin-off [Member] | Mortgages |  |  |  |  |
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Mortgage debt | $ 1,270,000,000 |  |  |  |
Retail Value Inc. [Member] | Spin-off [Member] | UNITED STATES |  |  |  |  |
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Number of shopping centers in connection with spinoff | ShoppingCenter | 36 |  |  |  |
Retail Value Inc. [Member] | Spin-off [Member] | PUERTO RICO |  |  |  |  |
Investments In And Advances To Affiliates [Line Items] |  |  |  |  |
Number of shopping centers in connection with spinoff | ShoppingCenter | 12 |  |  |  |

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