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INVESTMENT ACTIVITY - Accounting for LAACO acquisition (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 | Dec. 09, 2021
--- | --- | --- | ---
Significant Acquisitions and Disposals [Line Items] |  |  |
Storage facilities, net | $ 6,102,102 | $ 6,097,670 |
Cash and cash equivalents | 7,890 | 11,140 |
Investment in real estate ventures, at equity | 117,025 | 119,751 |
Assets held for sale | 3,324 | 49,313 |
Other assets, net | 226,553 | 265,705 |
Accounts payable, accrued expenses and other liabilities | (197,685) | (199,985) |
Deferred revenue | (38,493) | (37,144) |
Security deposits | (1,086) | (1,065) |
Liabilities held for sale | $ (475) | $ (2,502) |
LAACO | 2021 Acquisitions |  |  |
Significant Acquisitions and Disposals [Line Items] |  |  |
Storage facilities, net |  |  | $ 1,517,243
Cash and cash equivalents |  |  | 18,291
Investment in real estate ventures, at equity |  |  | 35,737
Assets held for sale |  |  | 50,435
Other assets, net |  |  | 143,599
Accounts payable, accrued expenses and other liabilities |  |  | (38,350)
Deferred revenue |  |  | (3,764)
Security deposits |  |  | (36)
Liabilities held for sale |  |  | (3,635)
Total |  |  | $ 1,719,520

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