NONCONTROLLING INTERESTS - Interests in Consolidated Real Estate Joint Ventures (Details) $ in Thousands	12 Months Ended
Dec. 31, 2024 USD ($) facility item	Dec. 31, 2023 USD ($)
Variable Interest Entity [Line Items]
Total assets	$ 6,394,181	$ 6,225,020
Total liabilities	3,440,313	$ 3,344,212
VIE
Variable Interest Entity [Line Items]
Total assets	379,474
Total liabilities	224,047
Related Party Loans	$ 101,433
Hines Capital
Variable Interest Entity [Line Items]
Number Of Consolidated Joint Ventures In Portfolio \| item	7
VIE
Variable Interest Entity [Line Items]
Number of Stores \| facility	22
VIE \| Hines Capital
Variable Interest Entity [Line Items]
Number of Stores \| facility	14
CubeSmart Ownership Interest	85.00%
VIE \| Hines Capital \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 186,516
Total liabilities	$ 116,977
VIE \| New Rochelle Investors LLC
Variable Interest Entity [Line Items]
Number of Stores \| facility	1
CubeSmart Ownership Interest	70.00%
VIE \| New Rochelle Investors LLC \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 29,854
Total liabilities	6,680
Related Party Loans	$ 5,237
VIE \| 1074 Raritan Road, LLC
Variable Interest Entity [Line Items]
Number of Stores \| facility	1
CubeSmart Ownership Interest	90.00%
VIE \| 1074 Raritan Road, LLC \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 15,632
Total liabilities	10,282
Related Party Loans	$ 10,195
VIE \| 350 Main Street, LLC
Variable Interest Entity [Line Items]
Number of Stores \| facility	1
CubeSmart Ownership Interest	90.00%
VIE \| 350 Main Street, LLC \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 9,040
Total liabilities	2,567
Related Party Loans	$ 1,401
VIE \| Astoria Investors, LLC
Variable Interest Entity [Line Items]
Number of Stores \| facility	1
CubeSmart Ownership Interest	70.00%
VIE \| Astoria Investors, LLC \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 45,308
Total liabilities	31,992
Related Party Loans	$ 29,796
VIE \| CS Vienna LLC
Variable Interest Entity [Line Items]
Number of Stores \| facility	1
CubeSmart Ownership Interest	80.00%
VIE \| CS Vienna LLC \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 29,318
Total liabilities	34,802
Related Party Loans	$ 34,486
VIE \| CS Valley Forge Village Storage LLC
Variable Interest Entity [Line Items]
Number of Stores \| facility	1
CubeSmart Ownership Interest	70.00%
VIE \| CS Valley Forge Village Storage LLC \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 18,507
Total liabilities	14,885
Related Party Loans	$ 14,792
VIE \| SH3, LLC
Variable Interest Entity [Line Items]
Number of Stores \| facility	1
CubeSmart Ownership Interest	90.00%
VIE \| SH3, LLC \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 35,571
Total liabilities	$ 290
VIE \| C S Lock Up Anoka LLC
Variable Interest Entity [Line Items]
Number of Stores \| facility	1
CubeSmart Ownership Interest	50.00%
VIE \| C S Lock Up Anoka LLC \| VIE
Variable Interest Entity [Line Items]
Total assets	$ 9,728
Total liabilities	5,572
Related Party Loans	$ 5,526

Denotes numbers of consolidated joint ventures in the portfolio.

No definition available.

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- Definition

Represents the number of self-storage facilities owned and operated.

+ References

No definition available.

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- Definition

Amount of asset recognized for present right to economic benefit.

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