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Other Assets and Intangibles, net - Components of Other Assets and Intangibles (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |
Amortization expense | $ 5.5 | $ 7.1 | $ 17.7 | $ 20.7
Write off of below market lease termination |  |  | $ 8.6 |

X
- Definition Amortization of intangible assets excluding above and below market leases. + References No definition available. + Details
Name: | sitc_AmortizationOfIntangibleAssetsExcludingAboveAndBelowMarketLeases
Namespace Prefix: | sitc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Write off of unamortized below market leases due to early termination of leases. + References No definition available. + Details
Name: | sitc_WriteOffOfBelowMarketLeasesTermination
Namespace Prefix: | sitc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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