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Nature of Business and Financial Statement Presentation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Other Expense [Member]
Nature Of Business And Financial Statement Presentation [Line Items]
Reclassification adjustments	$ 3.5	$ 7.0

X

- Definition

Nature of business and financial statement presentation.

+ References

No definition available.

+ Details

Name:	sitc_NatureOfBusinessAndFinancialStatementPresentationLineItems
Namespace Prefix:	sitc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of a reclassification adjustment made to prior period financial statement amounts.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OtherExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: