XML 74 R63.htm IDEA: XBRL DOCUMENT
v3.25.2

NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS - Balances of OP Units (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Noncontrolling Interest [Line Items] |  |
Noncontrolling interest represented by Preferred Operating Partnership units | $ 53,827 | $ 76,092
Series B Units |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interest represented by Preferred Operating Partnership units | 33,567 | 33,567
Series D Units |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interest represented by Preferred Operating Partnership units | $ 20,260 | $ 42,525

X
- Definition Carrying amount of the equity interests owned by noncontrolling preferred unit holders in an entity included in the reporting entity's consolidated financial statements. + References No definition available. + Details
Name: | us-gaap_MinorityInterestInPreferredUnitHolders
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_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=exr_SeriesBUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=exr_SeriesDUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |