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: