XML 64 R48.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Description of Business (Details) | Dec. 31, 2024 state store
--- | ---
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Number of storage facilities in which the entity had equity interests | 2,436
Number of stores managed for third parties | 1,575
Number of stores owned and/or managed | 4,011
Number of states in which storage facilities are located | state | 42

X
- Definition The number of real estate properties owned by franchisees and other third parties as of the balance sheet date. + References No definition available. + Details
Name: | exr_NumberOfRealEstatePropertiesFranchiseesAndOthers
Namespace Prefix: | exr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of real estate properties owned and/or managed as of the balance sheet date. + References No definition available. + Details
Name: | exr_NumberOfRealEstatePropertiesOwnedAndOrManaged
Namespace Prefix: | exr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration