Financing Receivable, Interest Rate

No definition available.

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- Definition

Financing Receivable, Percent Of Membership Interest Pledged As Collateral

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of undisbursed portion of financing receivable balance. Excludes financing receivable covered under loss sharing agreement.

+ References

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-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-URI https://asc.fasb.org/1943274/2147481962/310-10-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The increase (decrease) during the reporting period in outstanding loans including accrued interest.

+ References

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Balance Type:	credit
Period Type:	duration

- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=csr_TaxIncrementFinancingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Real Estate Related Notes Receivable (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Tax Increment Financing \| MultiFamily Non-Same-Store \| Lydian - Denver, CO
MORTGAGE RECEIVABLE AND NOTES RECEIVABLE
Loan commitment	$ 4.1	$ 4.1
Interest rate	6.00%	6.00%
Tax Increment Financing \| MultiFamily Same-Store \| Ironwood
MORTGAGE RECEIVABLE AND NOTES RECEIVABLE
Loan commitment	$ 5.1	$ 5.2
Interest rate	4.50%
Mezzanine Loan \| Multi-Family Residential \| Inver Grove Heights Minnesota
MORTGAGE RECEIVABLE AND NOTES RECEIVABLE
Interest rate	10.00%
Mortgage loans receivable face amount			$ 15.1
Mortgage loans receivable at fair value	$ 15.1	$ 15.1
Percent of membership interest pledged as collateral	100.00%