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v3.21.1

Nature of Business and Financial Statement Presentation - Additional Information (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2020 USD ($)
Other Expense [Member] |
Nature Of Business And Financial Statement Presentation [Line Items] |
Reclassification adjustments | $ 3.5

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- Definition Nature of business and financial statement presentation. + References No definition available. + Details
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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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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