XML 64 R53.htm IDEA: XBRL DOCUMENT v3.21.2

ACQUISITIONS AND DISPOSITIONS - Dispositions (Details) - Disposed of by Sale $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($) apartmentUnit apartmentProperty	Sep. 30, 2020 USD ($) apartmentUnit apartmentProperty	Sep. 30, 2021 USD ($) apartmentUnit	Sep. 30, 2020 USD ($) apartmentUnit
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | apartmentProperty	0
Sale Price	$ 60,000	$ 44,300	$ 60,000	$ 44,300
Book Value and Sales Cost	$ 33,160	$ 18,828	33,160	18,828
Gain/(Loss)			$ 26,840	25,472
Multifamily
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | apartmentProperty		4
Sale Price		$ 42,500		42,500
Book Value and Sales Cost		$ 16,864		16,864
Gain/(Loss)				$ 25,636
Multifamily | Crystal Bay - Rochester, MN
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit	76		76
Sale Price	$ 13,650		$ 13,650
Book Value and Sales Cost	$ 10,255		10,255
Gain/(Loss)			$ 3,395
Multifamily | French Creek - Rochester, MN
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit	40		40
Sale Price	$ 6,700		$ 6,700
Book Value and Sales Cost	$ 4,474		4,474
Gain/(Loss)			$ 2,226
Multifamily | Heritage Manor- Rochester, MN
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit	182		182
Sale Price	$ 14,125		$ 14,125
Book Value and Sales Cost	$ 4,892		4,892
Gain/(Loss)			$ 9,233
Multifamily | Olympik Village - Rochester, MN
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit	140		140
Sale Price	$ 10,725		$ 10,725
Book Value and Sales Cost	$ 6,529		6,529
Gain/(Loss)			$ 4,196
Multifamily | Winchester/Village Green-Rochester, MN
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit	151		151
Sale Price	$ 14,800		$ 14,800
Book Value and Sales Cost	$ 7,010		7,010
Gain/(Loss)			$ 7,790
Multifamily | Forest Park - Grand Forks, ND
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit		268		268
Sale Price		$ 19,625		$ 19,625
Book Value and Sales Cost		$ 6,884		6,884
Gain/(Loss)				$ 12,741
Multifamily | Landmark - Grand Forks, ND
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit		90		90
Sale Price		$ 3,725		$ 3,725
Book Value and Sales Cost		$ 1,348		1,348
Gain/(Loss)				$ 2,377
Multifamily | Southwind - Grand Forks, ND
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit		164		164
Sale Price		$ 10,850		$ 10,850
Book Value and Sales Cost		$ 4,573		4,573
Gain/(Loss)				$ 6,277
Multifamily | Valley Park - Grand Forks, ND
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of apartment units | apartmentUnit		168		168
Sale Price		$ 8,300		$ 8,300
Book Value and Sales Cost		$ 4,059		4,059
Gain/(Loss)				4,241
Other
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | apartmentProperty		1
Other | Dakota West
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale Price		$ 500		500
Book Value and Sales Cost		474		474
Gain/(Loss)				26
Real Estate Property Excluding Unimproved Land
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale Price		43,000		43,000
Unimproved Land | Rapid City Land - Rapid City, SD
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale Price		1,300		1,300
Book Value and Sales Cost		$ 1,490		1,490
Gain/(Loss)				$ (190)

X

- Definition

Disposal Group, Including Discontinued Operation, Asset Net Book Value And Sale Cost

+ References

No definition available.

+ Details

Name:	csr_DisposalGroupIncludingDiscontinuedOperationAssetNetBookValueAndSaleCost
Namespace Prefix:	csr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The number of properties sold during the period.

+ References

No definition available.

+ Details

Name:	csr_NumberOfPropertiesSold
Namespace Prefix:	csr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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

X

- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2443-110228

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230

+ Details

Name:	us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=csr_MultiFamilyResidentialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_CrystalBayRochesterMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_FrenchCreekRochesterMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_HeritageManorRochesterMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_OlympikVillageRochesterMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_WinchesterVillageGreenRochesterMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_ForestParkGrandForksNDMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_LandmarkGrandForksNDMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_SouthwindGrandForksNDMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_ValleyParkGrandForksNDMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_OtherPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_DakotaWestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=csr_RealEstatePropertyExcludingUnimprovedLandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=csr_UnimprovedLandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csr_RapidCityLandRapidCityNDMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: