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Other Assets, net - Summary of Estimated Net Future Amortization Associated with Above and Below-Market Leases (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($)
Intangible Assets Net Excluding Goodwill [Abstract] |
Future amortization income, 2020 | $ 4.0
Future amortization income, 2021 | 4.0
Future amortization income, 2022 | 4.0
Future amortization income, 2023 | 3.9
Future amortization income, 2024 | $ 3.6

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- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during next twelve months of the five succeeding fiscal years. + References No definition available. + Details
Name: | sitc_FutureAmortizationIncomeNextTwelveMonths
Namespace Prefix: | sitc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during year five of the five succeeding fiscal years. + References No definition available. + Details
Name: | sitc_FutureAmortizationIncomeYearFive
Namespace Prefix: | sitc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during year four of the five succeeding fiscal years. + References No definition available. + Details
Name: | sitc_FutureAmortizationIncomeYearFour
Namespace Prefix: | sitc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during year three of the five succeeding fiscal years. + References No definition available. + Details
Name: | sitc_FutureAmortizationIncomeYearThree
Namespace Prefix: | sitc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during year two of the five succeeding fiscal years. + References No definition available. + Details
Name: | sitc_FutureAmortizationIncomeYearTwo
Namespace Prefix: | sitc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration