$SUI
SUN COMMUNITIES INC Stock $sui

$sui Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000091259321000226 Filed on October 26, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q3
Revenue	$542.4M	$684.3M	$400.5M
YoY Change	41.16%	70.85%	10.5%
Cost Of Revenue	$273.5M	$321.8M	$169.9M
YoY Change	53.48%	89.41%	367.81%
Gross Profit	$268.9M	$362.5M	$230.6M
YoY Change	30.48%	57.19%	-29.29%
Gross Profit Margin	49.58%	52.97%	57.58%
Selling, General & Admin	$60.36M	$47.99M	$30.49M
YoY Change	60.95%	57.42%	13.26%
% of Gross Profit	22.44%	13.24%	13.22%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$144.7M	$127.1M	$88.50M
YoY Change	23.23%	43.61%	15.64%
% of Gross Profit	53.8%	35.06%	38.38%
Operating Expenses	$205.0M	$175.1M	$30.49M
YoY Change	32.2%	474.3%	13.26%
Operating Profit	$63.89M	$187.4M	$200.1M
YoY Change	25.28%	-6.35%	-33.12%
Interest Expense	-$40.12M	-$47.22M	-$27.10M
YoY Change	56.71%	74.24%	-18.86%
% of Operating Profit	-62.79%	-25.2%	-13.54%
Other Income/Expense, Net	-$1.099M	-$9.372M	-$3.511M
YoY Change	-50.05%	166.93%	157.78%
Pretax Income	$12.56M	$147.0M	$80.18M
YoY Change	-242.76%	83.36%	42.02%
Income Tax	-$1.165M	$1.557M	-$700.0K
% Of Pretax Income	-9.28%	1.06%	-0.87%
Net Earnings	$15.93M	$231.8M	$81.20M
YoY Change	109.93%	185.42%	42.46%
Net Earnings / Revenue	2.94%	33.87%	20.27%
Basic Earnings Per Share		$2.00	$0.83
Diluted Earnings Per Share	$135.3K	$2.00	$0.83
COMMON SHARES
Basic Shares Outstanding	116.0M shares	115.1M shares	97.54M shares
Diluted Shares Outstanding		118.1M shares	97.55M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$252.7M	$245.9M	$222.6M
YoY Change	25.08%	10.48%	84.09%
Cash & Equivalents	$65.80M	$85.62M	$115.5M
Short-Term Investments	$186.9M	$160.3M	$107.1M
Other Short-Term Assets
YoY Change
Inventory	$51.06M	$43.71M	$48.00M
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$235.7M	$240.7M	$216.0M
YoY Change	3.38%	11.42%	-13.25%
LONG-TERM ASSETS
Property, Plant & Equipment	$11.66B	$11.08B	$7.704B
YoY Change	19.04%	43.82%	13.06%
Goodwill	$495.4M	$461.6M
YoY Change	15.52%
Intangibles	$306.8M
YoY Change	0.37%
Long-Term Investments	$75.10M	$72.65M	$46.78M
YoY Change	27.13%	55.29%	23.29%
Other Assets
YoY Change
Total Long-Term Assets	$13.26B	$12.34B	$8.120B
YoY Change	20.77%	52.01%	7.5%
TOTAL ASSETS
Total Short-Term Assets	$235.7M	$240.7M	$216.0M
Total Long-Term Assets	$13.26B	$12.34B	$8.120B
Total Assets	$13.49B	$12.58B	$8.336B
YoY Change	20.41%	50.96%	6.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$237.5M	$232.6M	$141.0M
YoY Change	60.49%	64.96%
Accrued Expenses	$129.2M	$117.1M	$25.00M
YoY Change	158.35%	368.3%	0.0%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$465.1M	$448.1M	$246.0M
YoY Change	63.18%	82.16%	158.95%
LONG-TERM LIABILITIES
Long-Term Debt	$5.676B	$4.694B	$3.345B
YoY Change	19.22%	40.32%	2.14%
Other Long-Term Liabilities	$333.5M	$346.6M	$201.0M
YoY Change	24.45%	72.43%	-42.74%
Total Long-Term Liabilities	$6.010B	$5.040B	$3.546B
YoY Change	19.5%	42.14%	-2.21%
TOTAL LIABILITIES
Total Short-Term Liabilities	$465.1M	$448.1M	$246.0M
Total Long-Term Liabilities	$6.010B	$5.040B	$3.546B
Total Liabilities	$6.475B	$5.488B	$3.792B
YoY Change	21.82%	44.74%	1.91%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$1.200M	$1.160M	$983.0K
YoY Change	11.52%	18.01%	8.38%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$6.624B	$6.698B	$4.359B
YoY Change
Total Liabilities & Shareholders Equity	$13.49B	$12.58B	$8.336B
YoY Change	20.41%	50.96%	12.68%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q3
OPERATING ACTIVITIES
Net Income	$15.93M	$231.8M	$81.20M
YoY Change	109.93%	185.42%	42.46%
Depreciation, Depletion And Amortization	$144.7M	$127.1M	$88.50M
YoY Change	23.23%	43.61%	15.64%
Cash From Operating Activities	$97.56M	$185.3M	$162.5M
YoY Change	15.59%	14.03%	17.33%
INVESTING ACTIVITIES
Capital Expenditures	-$548.9M	-$506.4M	-$177.5M
YoY Change	-67.51%	185.31%	85.48%
Acquisitions
YoY Change
Other Investing Activities	-$426.2M	$8.751M	-$120.1M
YoY Change	224.82%	-107.29%	-9.7%
Cash From Investing Activities	-$975.1M	-$497.7M	-$297.6M
YoY Change	-46.45%	67.23%	30.07%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$1.230B
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	870.0M	278.9M	-138.7M
YoY Change	-49.38%	-301.09%	-261.09%
NET CHANGE
Cash From Operating Activities	97.56M	185.3M	162.5M
Cash From Investing Activities	-975.1M	-497.7M	-297.6M
Cash From Financing Activities	870.0M	278.9M	-138.7M
Net Change In Cash	-7.533M	-33.46M	-273.8M
YoY Change	-57.2%	-87.78%	6419.05%
FREE CASH FLOW
Cash From Operating Activities	$97.56M	$185.3M	$162.5M
Capital Expenditures	-$548.9M	-$506.4M	-$177.5M
Free Cash Flow	$646.5M	$691.7M	$340.0M
YoY Change	-63.56%	103.45%	45.18%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0000912593
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021Q3	dei	Document Type DocumentType	10-Q
CY2021Q3	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2021Q3	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
CY2021Q3	dei	Document Transition Report DocumentTransitionReport	false
CY2021Q3	dei	Entity Registrant Name EntityRegistrantName	SUN COMMUNITIES INC
CY2021Q3	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2021Q3	dei	Entity File Number EntityFileNumber	1-12616
CY2021Q3	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	38-2730780
	dei	Entity Address Address Line1 EntityAddressAddressLine1	27777 Franklin Rd,
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 200,
	dei	Entity Address City Or Town EntityAddressCityOrTown	Southfield,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	MI
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	48034
	dei	City Area Code CityAreaCode	248
	dei	Local Phone Number LocalPhoneNumber	208-2500
	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value
	dei	Trading Symbol TradingSymbol	SUI
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	115970843	shares
CY2021Q3	us-gaap	Land Land	2457236000	USD
CY2020Q4	us-gaap	Land Land	2119364000	USD
CY2021Q3	sui	Real Estate Investment Property Land Improvements And Buildings RealEstateInvestmentPropertyLandImprovementsAndBuildings	9469247000	USD
CY2020Q4	sui	Real Estate Investment Property Land Improvements And Buildings RealEstateInvestmentPropertyLandImprovementsAndBuildings	8480597000	USD
CY2021Q3	us-gaap	Rental Properties RentalProperties	591367000	USD
CY2020Q4	us-gaap	Rental Properties RentalProperties	637603000	USD
CY2021Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	590829000	USD
CY2020Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	447039000	USD
CY2021Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	13108679000	USD
CY2020Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	11684603000	USD
CY2021Q3	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	2232243000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	1968812000	USD
CY2021Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	10876436000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	9715791000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	85619000	USD
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CY2020Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	221650000	USD
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	sui	Revenue From Home Sales RevenueFromHomeSales	126779000	USD
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CY2021Q3	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	12072000	USD
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	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	43227000	USD
	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	-2636000	USD
CY2021Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-7028000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	5023000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-7107000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2496000	USD
CY2020Q3	sui	Losson Remeasurementof Investment LossonRemeasurementofInvestment	-446000	USD
	sui	Losson Remeasurementof Investment LossonRemeasurementofInvestment	-130000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-6907000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-22629000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-8806000	USD
CY2021Q3	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	108104000	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	5595000	USD
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	108104000	USD
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	5595000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-9372000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3511000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-10041000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4890000	USD
CY2021Q3	sui	Losson Remeasurementof Notes Receivable LossonRemeasurementofNotesReceivable	92000	USD
CY2020Q3	sui	Losson Remeasurementof Notes Receivable LossonRemeasurementofNotesReceivable	-445000	USD
	sui	Losson Remeasurementof Notes Receivable LossonRemeasurementofNotesReceivable	561000	USD
	sui	Losson Remeasurementof Notes Receivable LossonRemeasurementofNotesReceivable	-2311000	USD
CY2021Q3	sui	Distributions From Affiliate DistributionsFromAffiliate	962000	USD
CY2020Q3	sui	Distributions From Affiliate DistributionsFromAffiliate	1204000	USD
	sui	Distributions From Affiliate DistributionsFromAffiliate	2927000	USD
	sui	Distributions From Affiliate DistributionsFromAffiliate	1348000	USD
CY2021Q3	sui	Losson Remeasurementof Investment LossonRemeasurementofInvestment	-119000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-15290000	USD
	sui	Losson Remeasurementof Investment LossonRemeasurementofInvestment	-1505000	USD
CY2021Q3	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	402000	USD
CY2020Q3	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-107000	USD
	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1418000	USD
	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	462000	USD
CY2021Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1155000	USD
CY2020Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-562000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1074000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	804000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	250161000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	89756000	USD
	us-gaap	Profit Loss ProfitLoss	398951000	USD
	us-gaap	Profit Loss ProfitLoss	137633000	USD
CY2021Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-3101000	USD
CY2020Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-1645000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-9000000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-4799000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	231770000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	81204000	USD
	us-gaap	Net Income Loss NetIncomeLoss	367322000	USD
	us-gaap	Net Income Loss NetIncomeLoss	124028000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	115136000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97542000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	111717000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95270000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	118072000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	97549000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	114291000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	95273000	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.83
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.29
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.27
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
CY2021Q3	us-gaap	Profit Loss ProfitLoss	250161000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	89756000	USD
	us-gaap	Profit Loss ProfitLoss	398951000	USD
	us-gaap	Profit Loss ProfitLoss	137633000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-3606000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-2146000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1491000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1282000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	246555000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	91902000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	397460000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	136351000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	15129000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	6804000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	22564000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	8419000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	231426000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	85098000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	374896000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	127932000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-1622000	USD
CY2020Q3	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	67000	USD
CY2020Q3	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	-67000	USD
CY2020Q3	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	2146000	USD
CY2020Q3	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	2958000	USD
CY2020Q3	sui	Temporary Equity Dividends TemporaryEquityDividends	529000	USD
CY2020Q3	us-gaap	Dividends Cash DividendsCash	80629000	USD
CY2020Q3	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	112549000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4431246000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	656010000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	464458000	USD
	us-gaap	Payments To Acquire And Develop Real Estate PaymentsToAcquireAndDevelopRealEstate	476536000	USD
	us-gaap	Payments To Acquire And Develop Real Estate PaymentsToAcquireAndDevelopRealEstate	401976000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1099753000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	256359000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	80765000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	37389000	USD
	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	162077000	USD
	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	12612000	USD
	sui	Issuanceofnotesandotherreceivables Issuanceofnotesandotherreceivables	17114000	USD
	sui	Issuanceofnotesandotherreceivables Issuanceofnotesandotherreceivables	35188000	USD
	sui	Repaymentof Notesand Other Receivables RepaymentofNotesandOtherReceivables	4091000	USD
	sui	Repaymentof Notesand Other Receivables RepaymentofNotesandOtherReceivables	2713000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	27398000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	33390000	USD
	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	10716000	USD
	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	8491000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1363152000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-665708000	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	1059048000	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	619793000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2405240000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1221980000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	3014367000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1318986000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	598990000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	230000000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1608000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	49862000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	229742000	USD
	sui	Prepayment Penalty Debt PrepaymentPenaltyDebt	195000	USD
	sui	Prepayment Penalty Debt PrepaymentPenaltyDebt	6226000	USD
	sui	Distributions To Stockholders Op Unit Holders And Preferred Op Unit Holders DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders	289112000	USD
	sui	Distributions To Stockholders Op Unit Holders And Preferred Op Unit Holders DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders	231500000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	10961000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3322000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	700389000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	281997000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-269000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-48000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-7022000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	80699000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	92641000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	34830000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	85619000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	115529000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3471000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	7169000	USD
	us-gaap	Interest Paid Net InterestPaidNet	113313000	USD
	us-gaap	Interest Paid Net InterestPaidNet	100047000	USD
	us-gaap	Distributions On Mandatorily Redeemable Securities DistributionsOnMandatorilyRedeemableSecurities	3124000	USD
	us-gaap	Distributions On Mandatorily Redeemable Securities DistributionsOnMandatorilyRedeemableSecurities	3130000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	928000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1069000	USD
	us-gaap	Dividends Dividends	11438000	USD
	us-gaap	Dividends Dividends	7861000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	2784000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	793000	USD
	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	705000	USD
	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	0	USD
CY2021Q1	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2021Q3	us-gaap	Revenues Revenues	684294000	USD
CY2020Q3	us-gaap	Revenues Revenues	400514000	USD
	us-gaap	Revenues Revenues	1730172000	USD
	us-gaap	Revenues Revenues	1014082000	USD
CY2021Q3	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	11706	site
CY2021Q3	sui	Numberof Unitsin Real Estate Property Development Sites NumberofUnitsinRealEstatePropertyDevelopmentSites	747	development_site
CY2021Q3	sui	Number Of Marinas Owned NumberOfMarinasOwned	2	marina
CY2021Q3	sui	Number Of Mh Communities NumberOfMHCommunities	9	manufactured_home
CY2021Q3	sui	Number Of Marinas Owned NumberOfMarinasOwned	2	RV_community
CY2021Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	1041166000	USD
CY2021Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	1333000	USD
CY2021Q3	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Current Assets Liabilities Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory	26435000	USD
CY2021Q3	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Other Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities	-26787000	USD
CY2021Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	1095721000	USD
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	1071721000	USD
	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	24000000	USD
	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	1095721000	USD
CY2021Q3	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	10900000	USD
	sui	Number Of Land Parcels Acquired NumberOfLandParcelsAcquired	3	landParcel
CY2021Q3	sui	Number Of Development Sites NumberOfDevelopmentSites	500	development_site
	us-gaap	Payments To Acquire Land PaymentsToAcquireLand	7700000	USD
CY2020Q4	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	45800	site
CY2020Q4	sui	Numberof Unitsin Real Estate Property Development Sites NumberofUnitsinRealEstatePropertyDevelopmentSites	109	development_site
CY2020Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	2339368000	USD
CY2020Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	9942000	USD
CY2020Q4	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Current Assets Liabilities Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory	711308000	USD
CY2020Q4	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Other Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities	-59275000	USD
CY2020Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	3001343000	USD
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	1923855000	USD
CY2020Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Long Term Debt BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt	837800000	USD
	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	239688000	USD
	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	3001343000	USD
CY2020Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	52600000	USD
CY2021Q3	sui	Undrawn Funds On Loans UndrawnFundsOnLoans	10300000	USD
	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	23000000	USD
	sui	Number Of Land Parcels Acquired NumberOfLandParcelsAcquired	8	landParcel
	us-gaap	Payments To Acquire Land PaymentsToAcquireLand	9700000	USD
	sui	Number Of Land Parcels Acquired Adjacent To Existing Communities NumberOfLandParcelsAcquiredAdjacentToExistingCommunities	7	landParcel
CY2020Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	32100000	USD
CY2020Q3	sui	Number Of Housing Sites Sold NumberOfHousingSitesSold	226	site
CY2021Q3	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	256924000	USD
CY2020Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	221650000	USD
CY2021Q3	us-gaap	Receivable With Imputed Interest Net Amount ReceivableWithImputedInterestNetAmount	81000000	USD
CY2020Q4	us-gaap	Receivable With Imputed Interest Net Amount ReceivableWithImputedInterestNetAmount	85900000	USD
CY2021Q3	us-gaap	Receivable With Imputed Interest Net Amount ReceivableWithImputedInterestNetAmount	81001000	USD
CY2020Q4	us-gaap	Receivable With Imputed Interest Net Amount ReceivableWithImputedInterestNetAmount	85866000	USD
CY2021Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	64600000	USD
CY2021Q3	sui	Home Sale Proceeds HomeSaleProceeds	38219000	USD
CY2020Q4	sui	Home Sale Proceeds HomeSaleProceeds	23643000	USD
CY2021Q3	sui	Other Receivables Storage And Lease Payments Marina OtherReceivablesStorageAndLeasePaymentsMarina	26286000	USD
CY2020Q4	sui	Other Receivables Storage And Lease Payments Marina OtherReceivablesStorageAndLeasePaymentsMarina	19197000	USD
CY2021Q3	sui	Other Receivables For Rent Water Sewer Usage OtherReceivablesForRentWaterSewerUsage	10723000	USD
CY2020Q4	sui	Other Receivables For Rent Water Sewer Usage OtherReceivablesForRentWaterSewerUsage	7106000	USD
CY2021Q3	sui	Insurance Receivables InsuranceReceivables	10658000	USD
CY2020Q4	sui	Insurance Receivables InsuranceReceivables	13597000	USD
CY2021Q3	us-gaap	Other Receivables OtherReceivables	111330000	USD
CY2020Q4	us-gaap	Other Receivables OtherReceivables	83146000	USD
CY2021Q3	sui	Allowance For Rent Water Sewer Usage Receivables AllowanceForRentWaterSewerUsageReceivables	5800000	USD
CY2020Q4	sui	Allowance For Rent Water Sewer Usage Receivables AllowanceForRentWaterSewerUsageReceivables	7200000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	428833000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	461609000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	429050000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	131425000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	403887000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	98276000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9759000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3932000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	33271000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11372000	USD
CY2021Q3	us-gaap	Equity Method Investments EquityMethodInvestments	72646000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	59074000	USD
CY2021Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	962000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1204000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2927000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1348000	USD
CY2021Q3	sui	Variable Interest Entityasa Percentageof Consolidated Assets VariableInterestEntityasaPercentageofConsolidatedAssets	0.047	Rate
CY2020Q4	sui	Variable Interest Entityasa Percentageof Consolidated Assets VariableInterestEntityasaPercentageofConsolidatedAssets	0.043	Rate
CY2020Q4	sui	Variable Interest Entityasa Percentageof Consolidated Liabilities VariableInterestEntityasaPercentageofConsolidatedLiabilities	0.02	Rate
CY2021Q3	sui	Vi Easa Percentageof Total Equity VIEasaPercentageofTotalEquity	0.01
CY2021Q3	us-gaap	Secured Debt SecuredDebt	3403436000	USD
CY2020Q4	us-gaap	Secured Debt SecuredDebt	3489983000	USD
CY2020Q4	us-gaap	Line Of Credit LineOfCredit	1197181000	USD
CY2021Q3	us-gaap	Unsecured Debt UnsecuredDebt	1286001000	USD
CY2020Q4	us-gaap	Unsecured Debt UnsecuredDebt	1267093000	USD
CY2021Q3	sui	Secured Debt And Other Borrowings SecuredDebtAndOtherBorrowings	4689437000	USD
CY2020Q4	sui	Secured Debt And Other Borrowings SecuredDebtAndOtherBorrowings	4757076000	USD
	sui	Debtweightedaveragetomaturitylength Debtweightedaveragetomaturitylength	P9Y7M6D
CY2020	sui	Debtweightedaveragetomaturitylength Debtweightedaveragetomaturitylength	P9Y4M24D
CY2021Q3	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.03303	Rate
CY2020Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.03370	Rate
CY2021Q3	sui	Mortgage Term Loans MortgageTermLoans	3400000000	USD
CY2018Q2	sui	Financial Instruments Subjectto Mandatory Redemption Rate Of Return FinancialInstrumentsSubjecttoMandatoryRedemptionRateOfReturn	0.06
CY2021Q1	us-gaap	Debt Instrument Convertible Number Of Equity Instruments DebtInstrumentConvertibleNumberOfEquityInstruments	1013819	shares
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	218400000	USD
CY2021Q2	us-gaap	Long Term Debt LongTermDebt	6200000	USD
CY2021Q2	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	200000000	shares
CY2021Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1100000000	USD
CY2021Q1	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	8050000	shares
CY2021Q1	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	140.00
CY2021Q1	sui	Sale Of Stock Number Of Shares Issued In Transaction Direct SaleOfStockNumberOfSharesIssuedInTransactionDirect	4000000	shares
CY2021Q1	sui	Sale Of Stock Number Of Shares Issued In Transaction Forward Equity Sales SaleOfStockNumberOfSharesIssuedInTransactionForwardEquitySales	4050000	shares
CY2021Q1	sui	Sale Of Stock Number Of Shares Issued In Transaction Direct SaleOfStockNumberOfSharesIssuedInTransactionDirect	4000000	shares
CY2021Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	537600000	USD
CY2021Q1	sui	Sale Of Stock Number Of Shares Issued In Transaction Forward Equity Sales SaleOfStockNumberOfSharesIssuedInTransactionForwardEquitySales	4050000	shares
CY2021Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	539700000	USD
CY2020Q4	sui	Number Of Forward Sales Agreements NumberOfForwardSalesAgreements	2	salesAgreement
CY2020Q3	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	9200000	shares
CY2021Q3	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	139.50
CY2020Q2	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	4968000	shares
CY2020Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	633100000	USD
CY2021Q2	sui	Aggregate Valueof Sharestobe Issuedin Accordanceto Sales Agreement AggregateValueofSharestobeIssuedinAccordancetoSalesAgreement	500000000	USD
CY2021Q2	sui	Commission Maximum Percentageof Gross Sales Price Per Share Accordingto Sales Agreement CommissionMaximumPercentageofGrossSalesPricePerShareAccordingtoSalesAgreement	0.02
	sui	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Percent Expected To Vest SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPercentExpectedToVest	0.756
	sui	Shares Issued Under New Sales Agreement SharesIssuedUnderNewSalesAgreement	107400	shares
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	21400000	USD
	sui	Share Issuance Prior To New Sales Agreement ShareIssuancePriorToNewSalesAgreement	0	shares
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	163800000	USD
CY2020Q2	sui	Temporary Equity Dividends For Term Two Percentage TemporaryEquityDividendsForTermTwoPercentage	0.03
CY2019Q3	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	2400000	USD
CY2021Q3	sui	Number Of Share Based Compensation Plans NumberOfShareBasedCompensationPlans	2	numberOfPlans
CY2021Q3	sui	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Percent Expected To Vest SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPercentExpectedToVest	0.621
	sui	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Percent Expected To Vest SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPercentExpectedToVest	0.576
CY2020Q3	sui	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Percent Expected To Vest SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPercentExpectedToVest	0.655
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	500000	USD
CY2021Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-9000000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-4799000	USD
	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	-22629000	USD
	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	-8806000	USD
CY2021Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	10876436000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	9715791000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	85619000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	92641000	USD
CY2021Q3	us-gaap	Marketable Securities MarketableSecurities	160321000	USD
CY2020Q4	us-gaap	Marketable Securities MarketableSecurities	124726000	USD
CY2021Q3	us-gaap	Inventory Finished Homes InventoryFinishedHomes	43708000	USD
CY2020Q4	us-gaap	Inventory Finished Homes InventoryFinishedHomes	46643000	USD
CY2021Q3	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	256924000	USD
CY2020Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	221650000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	461609000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	428833000	USD
CY2021Q3	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	297625000	USD
CY2020Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	305611000	USD
CY2021Q3	us-gaap	Other Assets OtherAssets	401054000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	270691000	USD
CY2021Q3	us-gaap	Assets Assets	12583296000	USD
CY2020Q4	us-gaap	Assets Assets	11206586000	USD
	sui	Minimum Percent Of Income From Qualifying Sources To Allow For Real Estate Investment Trust Classification MinimumPercentOfIncomeFromQualifyingSourcesToAllowForRealEstateInvestmentTrustClassification	95
	sui	Required Minimum Percent Of Taxable Income Distributed To Stock Holders RequiredMinimumPercentOfTaxableIncomeDistributedToStockHolders	90
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q3	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	400000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1400000	USD
CY2020Q3	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	100000	USD
CY2021Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1200000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1100000	USD
CY2020Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-600000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	231770000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	81204000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	367322000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	124028000	USD
CY2021Q3	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	1508000	USD
CY2020Q3	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	536000	USD
	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	2352000	USD
	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	821000	USD
CY2021Q3	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	230262000	USD
CY2020Q3	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	80668000	USD
	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	364970000	USD
	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	123207000	USD
CY2021Q3	sui	Dilutive Securities Effect On Basic Earnings Per Share Common Equity DilutiveSecuritiesEffectOnBasicEarningsPerShareCommonEquity	5641000	USD
CY2020Q3	sui	Dilutive Securities Effect On Basic Earnings Per Share Common Equity DilutiveSecuritiesEffectOnBasicEarningsPerShareCommonEquity	0	USD
	sui	Dilutive Securities Effect On Basic Earnings Per Share Common Equity DilutiveSecuritiesEffectOnBasicEarningsPerShareCommonEquity	8269000	USD
	sui	Dilutive Securities Effect On Basic Earnings Per Share Common Equity DilutiveSecuritiesEffectOnBasicEarningsPerShareCommonEquity	0	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	235903000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	80668000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	373239000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	123207000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	115136000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97542000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	111717000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95270000	shares
CY2021Q3	sui	Weighted Average Common Shares Outstanding Adjustment Common Share From Forward Sale WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale	0	shares
CY2020Q3	sui	Weighted Average Common Shares Outstanding Adjustment Common Share From Forward Sale WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale	6000	shares
	sui	Weighted Average Common Shares Outstanding Adjustment Common Share From Forward Sale WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale	0	shares
	sui	Weighted Average Common Shares Outstanding Adjustment Common Share From Forward Sale WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale	2000	shares
CY2021Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2020Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1000	shares
CY2021Q3	sui	Incremental Common Shares Attributable To Dilutive Effect Of Common Equity IncrementalCommonSharesAttributableToDilutiveEffectOfCommonEquity	2936000	shares
CY2020Q3	sui	Incremental Common Shares Attributable To Dilutive Effect Of Common Equity IncrementalCommonSharesAttributableToDilutiveEffectOfCommonEquity	0	shares
	sui	Incremental Common Shares Attributable To Dilutive Effect Of Common Equity IncrementalCommonSharesAttributableToDilutiveEffectOfCommonEquity	2574000	shares
	sui	Incremental Common Shares Attributable To Dilutive Effect Of Common Equity IncrementalCommonSharesAttributableToDilutiveEffectOfCommonEquity	0	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	118072000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	97549000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	114291000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	95273000	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.83
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.29
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.27
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4558000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5335000	shares
CY2021Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	64593000	USD
CY2021Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	64593000	USD
CY2020Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	52638000	USD
CY2020Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	52638000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2381000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	126000	USD
CY2021Q3	sui	Operating And Finance Leases Liability Payments Remainderof Fiscal Year OperatingAndFinanceLeasesLiabilityPaymentsRemainderofFiscalYear	2507000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	9057000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	223000	USD
CY2021Q3	sui	Operating And Finance Leases Liability Payments Due Year Two OperatingAndFinanceLeasesLiabilityPaymentsDueYearTwo	9280000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	9003000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	198000	USD
CY2021Q3	sui	Operating And Finance Leases Liability Payments Due Year Three OperatingAndFinanceLeasesLiabilityPaymentsDueYearThree	9201000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	9347000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	4070000	USD
CY2021Q3	sui	Operating And Finance Leases Liability Payments Due Year Four OperatingAndFinanceLeasesLiabilityPaymentsDueYearFour	13417000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	9320000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q3	sui	Operating And Finance Leases Liability Payments Due Year Five OperatingAndFinanceLeasesLiabilityPaymentsDueYearFive	9320000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	179497000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q3	sui	Operating And Finance Leases Liability Payments Dueafter Year Five OperatingAndFinanceLeasesLiabilityPaymentsDueafterYearFive	179497000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	218605000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	4617000	USD
CY2021Q3	sui	Operating And Finance Leases Liability Payment Due OperatingAndFinanceLeasesLiabilityPaymentDue	223222000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	101530000	USD
CY2021Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	284000	USD
CY2021Q3	sui	Operating And Finance Leases Liability Undiscounted Excess Amount OperatingAndFinanceLeasesLiabilityUndiscountedExcessAmount	101814000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	117075000	USD
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	4333000	USD
CY2021Q3	sui	Operating And Finance Leases Liability OperatingAndFinanceLeasesLiability	121408000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	4452000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	4350000	USD
	sui	Rightof Use Asset Obtainedin Exchangefor New Operating Lease Liability RightofUseAssetObtainedinExchangeforNewOperatingLeaseLiability	126756000	USD
CY2020	sui	Rightof Use Asset Obtainedin Exchangefor New Operating Lease Liability RightofUseAssetObtainedinExchangeforNewOperatingLeaseLiability	48419000	USD
CY2021Q3	us-gaap	Below Market Lease Net BelowMarketLeaseNet	72249000	USD
CY2020Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	27614000	USD
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	4333000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	4334000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	117075000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	49964000	USD
CY2021Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	27000	USD
CY2020Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	26000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	79000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	77000	USD
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	2771000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	973000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	7223000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2925000	USD
CY2021Q3	us-gaap	Lease Cost LeaseCost	4741000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	1430000	USD
	us-gaap	Lease Cost LeaseCost	12501000	USD
	us-gaap	Lease Cost LeaseCost	4222000	USD
CY2021Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y8M19D
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P34Y6M14D
CY2021Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0245
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0384
	us-gaap	Operating Lease Payments OperatingLeasePayments	4512000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	1836000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	125000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	23000	USD
	sui	Operating And Finance Lease Payments OperatingAndFinanceLeasePayments	4637000	USD
	sui	Operating And Finance Lease Payments OperatingAndFinanceLeasePayments	1859000	USD
CY2021Q3	sui	Percentof Operating Leases Where Companyisthe Lessor PercentofOperatingLeasesWhereCompanyistheLessor	0.95
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	5099000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	16949000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	14141000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	8844000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	4976000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	5804000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	55813000	USD
CY2021Q3	us-gaap	Lease Income LeaseIncome	5293000	USD
CY2020Q3	us-gaap	Lease Income LeaseIncome	312000	USD
	us-gaap	Lease Income LeaseIncome	14346000	USD
	us-gaap	Lease Income LeaseIncome	934000	USD
CY2021Q3	us-gaap	Variable Lease Income VariableLeaseIncome	1284000	USD
CY2020Q3	us-gaap	Variable Lease Income VariableLeaseIncome	399000	USD
	us-gaap	Variable Lease Income VariableLeaseIncome	3554000	USD
	us-gaap	Variable Lease Income VariableLeaseIncome	1195000	USD

Files In Submission

Name	View Source	Status
0000912593-21-000226-index-headers.html	Edgar Link	pending
0000912593-21-000226-index.html	Edgar Link	pending
0000912593-21-000226.txt	Edgar Link	pending
0000912593-21-000226-xbrl.zip	Edgar Link	pending
exhibit221-09302021listofi.htm	Edgar Link	pending
exhibit311-09302021ceocert.htm	Edgar Link	pending
exhibit312-09302021cfocert.htm	Edgar Link	pending
exhibit321-09302021ceoandc.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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R74.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
sui-20210930.htm	Edgar Link	pending
sui-20210930.xsd	Edgar Link	pending
sui-20210930_cal.xml	Edgar Link	unprocessable
sui-20210930_def.xml	Edgar Link	unprocessable
sui-20210930_htm.xml	Edgar Link	completed
sui-20210930_lab.xml	Edgar Link	unprocessable
sui-20210930_pre.xml	Edgar Link	unprocessable

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$SUI
SUN COMMUNITIES INC Stock $sui

2021 Q4 Form 10-Q Financial Statement

#000091259321000226 Filed on October 26, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUI SUN COMMUNITIES INC Stock $sui

2021 Q4 Form 10-Q Financial Statement

#000091259321000226 Filed on October 26, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUI
SUN COMMUNITIES INC Stock $sui