Other Assets and Intangibles, net - Components of Other Assets and Intangibles (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Intangible Assets Net Excluding Goodwill [Abstract]
Amortization expense	$ 7.0	$ 5.4	$ 13.6	$ 11.0

Amortization of intangible assets excluding above and below market leases.

No definition available.

Name:	sitc_AmortizationOfIntangibleAssetsExcludingAboveAndBelowMarketLeases
Namespace Prefix:	sitc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration