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Consolidated Variable Interest Entities - Narrative (Details)	Jun. 30, 2024 Rate	Dec. 31, 2023 Rate
Disclosure of Variable Interest Entities [Abstract]
Assets related to VIEs, percentage	0.80%	0.80%
Liabilities related to VIEs, percentage	0.10%	0.30%
Equity interests and noncontrolling interests related to VIEs, percentage	1.00%	1.00%

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- Definition

DisclosureofVariableInterestEntities [Abstract]

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No definition available.

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- Definition

VIE as a Percentage of Total Equity

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No definition available.

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Data Type:	dtr-types1:percentItemType
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- Definition

Variable Interest Entity as a Percentage of Consolidated Assets

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No definition available.

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Data Type:	dtr-types1:percentItemType
Balance Type:	na
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- Definition

Variable Interest Entity as a Percentage of Consolidated Liabilities

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No definition available.

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Namespace Prefix:	sui_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
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