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Acquisitions - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Revenues from the date of acquisition	$ 7.3	$ 6.9	$ 6.8
Chicago, IL [Member] | North Broadway [Member]
Business Acquisition [Line Items]
Purchase price		$ 81.0
Cumming, GA, Melbourne, FL and Douglasville, GA [Member] | Sharon Greens, Melbourne Shopping Center and Market Square [Member]
Business Acquisition [Line Items]
Purchase price	$ 35.1

X

- Definition

Business acquisitions cost of acquired entity purchase price gross.

+ References

No definition available.

+ Details

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Namespace Prefix:	sitc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

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Namespace Prefix:	us-gaap_
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X

- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Details

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- Details

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X

- Details

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Namespace Prefix:
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Period Type:

X

- Details

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