Additional reduction of rental payments.

No definition available.

Name:	sitc_AdditionalReductionOfRentalPayments
Namespace Prefix:	sitc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Base rate percentage of deferral or lease modifications from tenants.

+ References

No definition available.

+ Details

Name:	sitc_BaseRatePercentageOfDeferralOrLeaseModificationsFromTenants
Namespace Prefix:	sitc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage Of Base Rent Paid.

+ References

No definition available.

+ Details

Name:	sitc_PercentageOfBaseRentPaid
Namespace Prefix:	sitc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage Of Tenants Open For Business.

+ References

No definition available.

+ Details

Name:	sitc_PercentageOfTenantsOpenForBusiness
Namespace Prefix:	sitc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Reduction Of Rental Income From Tenants On Cash Basis And Reserves.

+ References

No definition available.

+ Details

Name:	sitc_ReductionOfRentalIncomeFromTenantsOnCashBasisAndReserves
Namespace Prefix:	sitc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Share of joint ventures reduction of rental income from tenants on cash basis and reserves.

+ References

No definition available.

+ Details

Name:	sitc_ShareOfJointVenturesReductionOfRentalIncomeFromTenantsOnCashBasisAndReserves
Namespace Prefix:	sitc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(5))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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

- 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

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Balance Type:	na
Period Type:	duration

- Details

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

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=sitc_TenantAccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=sitc_JointVenturesContractualAccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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Revenue Recognition - Additional Information (Detail) - USD ($)		1 Months Ended	3 Months Ended	6 Months Ended
	Jul. 24, 2020	Apr. 30, 2020	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable			$ 81,184,000	$ 81,184,000	$ 60,594,000
COVID-19
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of tenants open for business		45.00%
Base rate percentage of deferral or lease modifications from tenants			17.00%
Additional Reduction of Rental Payments			$ 2,600,000	0
Reduction in Rental income			10,100,000
Reserves for unconsolidated joint ventures			1,800,000
COVID-19 \| Tenant Accounts Receivable
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable			27,400,000	27,400,000
COVID-19 \| Joint Ventures Contractual Accounts Receivable
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable			$ 1,800,000	$ 1,800,000
COVID-19 \| Subsequent Event
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of tenants open for business	92.00%
Percentage of base rent paid	64.00%