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ACQUISITIONS - Conversion of Shares (Details) | Oct. 22, 2021 shares | Oct. 21, 2021 shares | Dec. 31, 2021 shares | Dec. 31, 2020 shares
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Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |
Common shares outstanding (in shares) |  |  | 218,949,569 | 84,187,999
Retail Properties of America, Inc. |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |
Exchange ratio | 0.623 |  |  |
Company common shares issued for outstanding RPAI common stock (in shares) | 133,814,066 |  |  |
Company common shares issued for RPAI restricted stock units (in shares) | 1,117,399 |  |  |
Total company common shares issued (in shares) | 134,931,465 | 134,931,000 |  |
Retail Properties of America, Inc. |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |
Common shares outstanding (in shares) |  | 214,797,869 |  |

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