XML 76 R65.htm IDEA: XBRL DOCUMENT
v3.25.3

COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands | Sep. 30, 2025 USD ($) apartmentProperty apartmentHome realEstateTechnologyVentureFund
--- | ---
Real Estate Properties [Line Items] |
Number of real estate technology venture funds with unfunded commitments | realEstateTechnologyVentureFund | 2
Fair Value, Recurring |
Real Estate Properties [Line Items] |
Unfunded commitments | $ | $ 750
Subject to Restrictions on Taxable Dispositions |
Real Estate Properties [Line Items] |
Number of properties | apartmentProperty | 28
Number of apartment units | apartmentHome | 5,445

X
- Definition Equity Securities, F V N I, Unfunded Commitments + References No definition available. + Details
Name: | csr_EquitySecuritiesFVNIUnfundedCommitments
Namespace Prefix: | csr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number Of Real Estate Technology Venture Funds With Unfunded Commitments + References No definition available. + Details
Name: | csr_NumberOfRealEstateTechnologyVentureFundsWithUnfundedCommitments
Namespace Prefix: | csr_
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 units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
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_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=csr_SubjectToRestrictionsOnTaxableDispositionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |