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ORGANIZATION AND NATURE OF OPERATIONS (Details)	12 Months Ended
	Dec. 31, 2023 state facility segment
Number of owned (or partially owned and consolidated) self-storage properties. | facility	611
Number of states in which self-storage facilities are located | state	24
Number of reportable segments | segment	1
Common stock, conversion ratio	1
CubeSmart, L.P. and Subsidiaries
Percentage of the entity's partnership interest in Operating Partnership	99.40%

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- Definition

The shares of common stock into which another convertible security can be converted, or shares of common stock into which another class of common stock can be converted.

+ References

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- Definition

The number of owned (or partially owned and consolidated) self-storage properties.

+ References

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-18

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The number of states the entity operates in as of the balance sheet date.

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