Organization (Details)	Jun. 30, 2026 store
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of operating storage facilities in which the entity has equity interests (in stores)	2,446
Number of stores owned by franchisees and third parties	1,964
Number of operating stores owned and/or managed	4,410
Number of states in which operating storage facilities are located	42

The number of real estate properties owned by franchisees and other third parties as of the balance sheet date.

No definition available.

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- Definition

The number of real estate properties owned and/or managed as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-2

+ Details

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- Definition

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

+ References

+ Details

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- References

No definition available.

+ Details

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