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Earnings Per Share - Additional Information (Detail) - Performance Restricted Stock Units [Member] - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2022 | Jun. 30, 2021
Schedule Of Earnings Per Share [Line Items] |  |
Common shares, shares issued | 519,255 |
Mark-to-market adjustment |  | $ (5.6)

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- Definition Mark to market adjustment. + References No definition available. + Details
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Period Type: | duration

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- Definition Earnings Per Share Line Items. + References No definition available. + Details
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Namespace Prefix: | sitc_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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