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NONCONTROLLING INTERESTS - Operating Partnership Ownership (Details) $ in Thousands |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 29, 2020 USD ($) shares | Dec. 31, 2020 USD ($) item shares | Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2020 USD ($) shares
Operating Partnership Ownership |  |  |  |  |
OP Units outstanding which are not owned by the general partner (as a percent) |  |  | 0.60% | 0.80% |
OP units redeemed | shares |  |  | 475,046 | 5,519,233 | 100,000
OP units outstanding (in shares) | shares |  | 7,420,828 | 1,426,549 | 1,901,595 | 7,420,828
Adjustment for noncontrolling interests in the Operating Partnership |  |  | $ 27,203 | $ (164,109) | $ (4,230)
Acquisition of noncontrolling interest |  |  |  | $ 3,397 |
New York |  |  |  |  |
Operating Partnership Ownership |  |  |  |  |
Acquisition of noncontrolling interest | $ 10,000 |  |  |  |
Cash paid for acquisition | $ 1,000 |  |  |  |
Units issued (in shares) | shares | 276,497 |  |  |  |
Units issued | $ 9,000 |  |  |  |
Storage Deluxe assets |  |  |  |  |
Operating Partnership Ownership |  |  |  |  |
Purchase Price |  | $ 540,000 |  |  |
Number of real estate property acquisition tranches | item |  | 2 |  |  |
Units issued (in shares) | shares |  | 5,272,023 |  |  |
Units issued |  | $ 175,100 |  |  |
CubeSmart, L.P. and Subsidiaries |  |  |  |  |
Operating Partnership Ownership |  |  |  |  |
OP units outstanding (in shares) | shares |  |  | 1,426,549 | 1,901,595 |
OP Units, redemption value |  |  | $ 57,400 |  |
Adjustment for noncontrolling interests in the Operating Partnership |  |  | $ 27,203 | $ (164,109) | $ (4,230)
Acquisition of noncontrolling interest |  |  |  | $ 3,397 |

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