XML 120 R104.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Commitments and Contingencies (Details) $ in Thousands | Dec. 31, 2024 USD ($) store
--- | ---
Commitment to acquire stores |
Other Commitments [Line Items] |
Number of properties to be acquired | store | 8
Other commitment | $ | $ 81,533
Commitment to acquire stores, scheduled to close in current fiscal year |
Other Commitments [Line Items] |
Number of properties to be acquired | store | 8
Commitment to sale stores |
Other Commitments [Line Items] |
Other commitment | $ | $ 144,550
Number of properties to be sold | store | 13
Agreement to originate bridge loans |
Other Commitments [Line Items] |
Other commitment | $ | $ 245,995

X
- Definition Number Of Real Estate Properties To Be Acquired + References No definition available. + Details
Name: | exr_NumberOfRealEstatePropertiesToBeAcquired
Namespace Prefix: | exr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Real Estate Properties To Be Sold + References No definition available. + Details
Name: | exr_NumberOfRealEstatePropertiesToBeSold
Namespace Prefix: | exr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
Name: | us-gaap_OtherCommitment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=exr_CommitmentToAcquireStoresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=exr_CommitmentToAcquireRetailSpaceExpectedToCloseIn2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=exr_CommitmentToSaleStoresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=exr_AgreementToOriginateBridgeLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |