$SUI
SUN COMMUNITIES INC Stock $sui

$sui Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000091259320000165 Filed on October 22, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q3
Revenue	$384.3M	$400.5M	$362.4M
YoY Change	27.32%	10.5%	12.07%
Cost Of Revenue	$178.2M	$169.9M	$36.32M
YoY Change	39.11%	367.81%	7.79%
Gross Profit	$206.1M	$230.6M	$326.1M
YoY Change	18.65%	-29.29%	12.57%
Gross Profit Margin	53.63%	57.58%	89.98%
Selling, General & Admin	$37.50M	$30.49M	$26.92M
YoY Change	27.12%	13.26%	13.07%
% of Gross Profit	18.2%	13.22%	8.25%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$117.4M	$88.50M	$76.53M
YoY Change	18.83%	15.64%	6.32%
% of Gross Profit	56.96%	38.38%	23.47%
Operating Expenses	$155.1M	$30.49M	$26.92M
YoY Change	20.79%	13.26%	13.07%
Operating Profit	$51.00M	$200.1M	$299.2M
YoY Change	12.58%	-33.12%	70.15%
Interest Expense	-$25.60M	-$27.10M	-$33.40M
YoY Change	-25.8%	-18.86%	-199.64%
% of Operating Profit	-50.2%	-13.54%	-11.16%
Other Income/Expense, Net	-$2.200M	-$3.511M	-$1.362M
YoY Change	-148.89%	157.78%	-210.64%
Pretax Income	-$8.795M	$80.18M	$56.45M
YoY Change	-210.16%	42.02%	12.25%
Income Tax	-$400.0K	-$700.0K	$800.0K
% Of Pretax Income		-0.87%	1.42%
Net Earnings	$7.586M	$81.20M	$57.00M
YoY Change	-73.43%	42.46%	23.76%
Net Earnings / Revenue	1.97%	20.27%	15.73%
Basic Earnings Per Share	$0.07	$0.83	$0.63
Diluted Earnings Per Share	$0.07	$0.83	$0.63
COMMON SHARES
Basic Shares Outstanding	98.28M shares	97.54M shares	89.85M shares
Diluted Shares Outstanding		97.55M shares	90.33M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$202.0M	$222.6M	$120.9M
YoY Change	72.93%	84.09%	6.07%
Cash & Equivalents	$77.30M	$115.5M	$26.20M
Short-Term Investments	$124.7M	$107.1M	$94.73M
Other Short-Term Assets
YoY Change
Inventory	$47.00M	$48.00M	$55.00M
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$228.0M	$216.0M	$249.0M
YoY Change	62.86%	-13.25%	-21.45%
LONG-TERM ASSETS
Property, Plant & Equipment	$9.796B	$7.704B	$6.814B
YoY Change	34.39%	13.06%	12.55%
Goodwill	$428.8M
YoY Change
Intangibles	$305.6M
YoY Change
Long-Term Investments	$59.07M	$46.78M	$37.94M
YoY Change	56.38%	23.29%
Other Assets
YoY Change
Total Long-Term Assets	$10.98B	$8.120B	$7.553B
YoY Change	43.29%	7.5%	19.19%
TOTAL ASSETS
Total Short-Term Assets	$228.0M	$216.0M	$249.0M
Total Long-Term Assets	$10.98B	$8.120B	$7.553B
Total Assets	$11.21B	$8.336B	$7.802B
YoY Change	43.64%	6.84%	17.26%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$148.0M	$141.0M
YoY Change	16.54%
Accrued Expenses	$50.00M	$25.00M	$25.00M
YoY Change	108.33%	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	$285.0M	$246.0M	$95.00M
YoY Change	27.8%	158.95%	50.79%
LONG-TERM LIABILITIES
Long-Term Debt	$4.761B	$3.345B	$3.275B
YoY Change	38.48%	2.14%	8.99%
Other Long-Term Liabilities	$268.0M	$201.0M	$351.0M
YoY Change	44.09%	-42.74%	17.39%
Total Long-Term Liabilities	$5.029B	$3.546B	$3.626B
YoY Change	38.77%	-2.21%	9.75%
TOTAL LIABILITIES
Total Short-Term Liabilities	$285.0M	$246.0M	$95.00M
Total Long-Term Liabilities	$5.029B	$3.546B	$3.626B
Total Liabilities	$5.315B	$3.792B	$3.721B
YoY Change	38.12%	1.91%	10.5%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$1.076M	$983.0K	$907.0K
YoY Change	15.45%	8.38%	4.98%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$5.525B	$4.359B	$3.500B
YoY Change
Total Liabilities & Shareholders Equity	$11.21B	$8.336B	$7.398B
YoY Change	43.64%	12.68%	11.18%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q3
OPERATING ACTIVITIES
Net Income	$7.586M	$81.20M	$57.00M
YoY Change	-73.43%	42.46%	23.76%
Depreciation, Depletion And Amortization	$117.4M	$88.50M	$76.53M
YoY Change	18.83%	15.64%	6.32%
Cash From Operating Activities	$84.40M	$162.5M	$138.5M
YoY Change	7.65%	17.33%	35.12%
INVESTING ACTIVITIES
Capital Expenditures	-$1.690B	-$177.5M	-$95.70M
YoY Change	2355.81%	85.48%	111.26%
Acquisitions
YoY Change
Other Investing Activities	-$131.2M	-$120.1M	-$133.0M
YoY Change	-7.87%	-9.7%	44.1%
Cash From Investing Activities	-$1.821B	-$297.6M	-$228.8M
YoY Change	762.12%	30.07%	66.28%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	1.719B	-138.7M	86.10M
YoY Change	1266.3%	-261.09%	-32.31%
NET CHANGE
Cash From Operating Activities	84.40M	162.5M	138.5M
Cash From Investing Activities	-1.821B	-297.6M	-228.8M
Cash From Financing Activities	1.719B	-138.7M	86.10M
Net Change In Cash	-17.60M	-273.8M	-4.200M
YoY Change	151.43%	6419.05%	-104.56%
FREE CASH FLOW
Cash From Operating Activities	$84.40M	$162.5M	$138.5M
Capital Expenditures	-$1.690B	-$177.5M	-$95.70M
Free Cash Flow	$1.774B	$340.0M	$234.2M
YoY Change	1105.16%	45.18%	58.46%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0000912593
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q3	dei	Document Type DocumentType	10-Q
CY2020Q3	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2020Q3	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
CY2020Q3	dei	Document Transition Report DocumentTransitionReport	false
CY2020Q3	dei	Entity Registrant Name EntityRegistrantName	SUN COMMUNITIES INC
CY2020Q3	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2020Q3	dei	Entity File Number EntityFileNumber	1-12616
CY2020Q3	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	38-2730780
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	94727000	USD
	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
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	98280096	shares
CY2020Q3	us-gaap	Land Land	1441372000	USD
CY2019Q4	us-gaap	Land Land	1414279000	USD
CY2020Q3	sui	Real Estate Investment Property Land Improvements And Buildings RealEstateInvestmentPropertyLandImprovementsAndBuildings	7119163000	USD
CY2019Q4	sui	Real Estate Investment Property Land Improvements And Buildings RealEstateInvestmentPropertyLandImprovementsAndBuildings	6595272000	USD
CY2020Q3	us-gaap	Rental Properties RentalProperties	649004000	USD
CY2019Q4	us-gaap	Rental Properties RentalProperties	627175000	USD
CY2020Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	338236000	USD
CY2019Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	282874000	USD
CY2020Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	9547775000	USD
CY2019Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	8919600000	USD
CY2020Q3	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	1900306000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	1686980000	USD
CY2020Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	7647469000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	7232620000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	115529000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	34830000	USD
CY2020Q3	us-gaap	Marketable Securities MarketableSecurities	107083000	USD
CY2020Q3	us-gaap	Inventory Finished Homes InventoryFinishedHomes	48130000	USD
CY2019Q4	us-gaap	Inventory Finished Homes InventoryFinishedHomes	62061000	USD
CY2020Q3	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	191508000	USD
CY2019Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	157926000	USD
CY2020Q3	us-gaap	Other Assets OtherAssets	225998000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	219896000	USD
CY2020Q3	us-gaap	Assets Assets	8335717000	USD
CY2019Q4	us-gaap	Assets Assets	7802060000	USD
CY2020Q3	us-gaap	Secured Debt SecuredDebt	3191380000	USD
CY2019Q4	us-gaap	Secured Debt SecuredDebt	3180592000	USD
CY2020Q3	us-gaap	Line Of Credit LineOfCredit	79321000	USD
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	183898000	USD
CY2020Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	79600000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	71704000	USD
CY2020Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	146909000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	133420000	USD
CY2020Q3	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	140848000	USD
CY2019Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	127289000	USD
CY2020Q3	us-gaap	Other Liabilities OtherLiabilities	83952000	USD
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	81289000	USD
CY2020Q3	us-gaap	Liabilities Liabilities	3791922000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	3848104000	USD
CY2020Q3	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	27513000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	27091000	USD
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	180000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	180000000	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	98280000	shares
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	98280000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	93180000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	93180000	shares
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	983000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	932000	USD
CY2020Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5851380000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5213264000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2226000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1331000	USD
CY2020Q3	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	1491338000	USD
CY2019Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	1393141000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	4358799000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	3819724000	USD
CY2020Q3	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	61350000	USD
CY2019Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	47686000	USD
CY2020Q3	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	11097000	USD
CY2019Q4	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	8542000	USD
CY2020Q3	us-gaap	Minority Interest MinorityInterest	72447000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	56228000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4431246000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3875952000	USD
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8335717000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7802060000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	284373000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	251163000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	753642000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	689890000	USD
CY2020Q3	sui	Revenue From Home Sales RevenueFromHomeSales	47662000	USD
CY2019Q3	sui	Revenue From Home Sales RevenueFromHomeSales	49805000	USD
	sui	Revenue From Home Sales RevenueFromHomeSales	126779000	USD
	sui	Revenue From Home Sales RevenueFromHomeSales	136665000	USD
CY2020Q3	sui	Rental Home Revenue RentalHomeRevenue	16171000	USD
CY2019Q3	sui	Rental Home Revenue RentalHomeRevenue	14444000	USD
	sui	Rental Home Revenue RentalHomeRevenue	46611000	USD
	sui	Rental Home Revenue RentalHomeRevenue	42827000	USD
CY2020Q3	sui	Ancillary Revenue AncillaryRevenue	43803000	USD
CY2019Q3	sui	Ancillary Revenue AncillaryRevenue	37259000	USD
	sui	Ancillary Revenue AncillaryRevenue	66373000	USD
	sui	Ancillary Revenue AncillaryRevenue	67157000	USD
CY2020Q3	us-gaap	Interest Income Operating InterestIncomeOperating	2624000	USD
CY2019Q3	us-gaap	Interest Income Operating InterestIncomeOperating	4770000	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	7609000	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	14489000	USD
CY2020Q3	sui	Brokeragecommissionsandotherincomenet Brokeragecommissionsandotherincomenet	5881000	USD
CY2019Q3	sui	Brokeragecommissionsandotherincomenet Brokeragecommissionsandotherincomenet	5002000	USD
	sui	Brokeragecommissionsandotherincomenet Brokeragecommissionsandotherincomenet	13068000	USD
	sui	Brokeragecommissionsandotherincomenet Brokeragecommissionsandotherincomenet	11190000	USD
CY2020Q3	us-gaap	Revenues Revenues	400514000	USD
CY2019Q3	us-gaap	Revenues Revenues	362443000	USD
	us-gaap	Revenues Revenues	1014082000	USD
	us-gaap	Revenues Revenues	962218000	USD
CY2020Q3	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	90647000	USD
CY2019Q3	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	79095000	USD
	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	219908000	USD
	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	202892000	USD
CY2020Q3	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	17442000	USD
CY2019Q3	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	15399000	USD
	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	52341000	USD
	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	46455000	USD
CY2020Q3	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	36237000	USD
CY2019Q3	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	36318000	USD
	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	95450000	USD
	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	100030000	USD
CY2020Q3	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	5949000	USD
CY2019Q3	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	6444000	USD
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	16128000	USD
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	16453000	USD
CY2020Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	20023000	USD
CY2019Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	18752000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	35731000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	38333000	USD
CY2020Q3	us-gaap	Selling Expense SellingExpense	3652000	USD
CY2019Q3	us-gaap	Selling Expense SellingExpense	3972000	USD
	us-gaap	Selling Expense SellingExpense	10508000	USD
	us-gaap	Selling Expense SellingExpense	10922000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27243000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	22946000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	79493000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	68530000	USD
CY2020Q3	us-gaap	Loss From Catastrophes LossFromCatastrophes	14000	USD
CY2019Q3	us-gaap	Loss From Catastrophes LossFromCatastrophes	341000	USD
	us-gaap	Loss From Catastrophes LossFromCatastrophes	54000	USD
	us-gaap	Loss From Catastrophes LossFromCatastrophes	1302000	USD
CY2020Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	88499000	USD
CY2019Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	76532000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	259453000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	229241000	USD
CY2020Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-12755000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-5209000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-13478000	USD
CY2020Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	30214000	USD
CY2019Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	32219000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	94058000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	99894000	USD
CY2020Q3	us-gaap	Interest Expense Other InterestExpenseOther	1047000	USD
CY2019Q3	us-gaap	Interest Expense Other InterestExpenseOther	1216000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	3130000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	3491000	USD
CY2020Q3	us-gaap	Costs And Expenses CostsAndExpenses	320967000	USD
CY2019Q3	us-gaap	Costs And Expenses CostsAndExpenses	305989000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	871463000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	831021000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	79547000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	56454000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	142619000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	131197000	USD
CY2020Q3	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	1492000	USD
CY2019Q3	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	12661000	USD
	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	-2636000	USD
	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	16548000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	4664000	USD
CY2019Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3046000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2441000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	35000	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	5595000	USD
CY2019Q3	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	0	USD
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	5595000	USD
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	0	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2524000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1362000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3378000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1524000	USD
CY2020Q3	sui	Losson Remeasurementof Notes Receivable LossonRemeasurementofNotesReceivable	-445000	USD
CY2019Q3	sui	Losson Remeasurementof Notes Receivable LossonRemeasurementofNotesReceivable	0	USD
	sui	Losson Remeasurementof Notes Receivable LossonRemeasurementofNotesReceivable	-2311000	USD
	sui	Losson Remeasurementof Notes Receivable LossonRemeasurementofNotesReceivable	0	USD
CY2020Q3	sui	Distributions From Affiliate DistributionsFromAffiliate	1204000	USD
CY2019Q3	sui	Distributions From Affiliate DistributionsFromAffiliate	513000	USD
	sui	Distributions From Affiliate DistributionsFromAffiliate	1348000	USD
	sui	Distributions From Affiliate DistributionsFromAffiliate	1380000	USD
CY2020Q3	sui	Losson Remeasurementof Investment LossonRemeasurementofInvestment	-446000	USD
CY2019Q3	sui	Losson Remeasurementof Investment LossonRemeasurementofInvestment	0	USD
	sui	Losson Remeasurementof Investment LossonRemeasurementofInvestment	-1505000	USD
	sui	Losson Remeasurementof Investment LossonRemeasurementofInvestment	0	USD
CY2020Q3	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-107000	USD
CY2019Q3	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	420000	USD
	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	462000	USD
	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	906000	USD
CY2020Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-562000	USD
CY2019Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	349000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-804000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-36000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	89756000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	64451000	USD
	us-gaap	Profit Loss ProfitLoss	137633000	USD
	us-gaap	Profit Loss ProfitLoss	146694000	USD
CY2020Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-1645000	USD
CY2019Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-1599000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-4799000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-4640000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-6907000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-5422000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-8806000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-9048000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	81204000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	57430000	USD
	us-gaap	Net Income Loss NetIncomeLoss	124028000	USD
	us-gaap	Net Income Loss NetIncomeLoss	133006000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
CY2019Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	428000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1288000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	81204000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	57002000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	124028000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	131718000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97542000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	89847000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95270000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	87499000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	97549000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	90332000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	95273000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	87500000	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.83
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.29
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.49
CY2020Q3	us-gaap	Profit Loss ProfitLoss	89756000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	64451000	USD
	us-gaap	Profit Loss ProfitLoss	137633000	USD
	us-gaap	Profit Loss ProfitLoss	146694000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	2146000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1717000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1282000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1771000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	91902000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	62734000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	136351000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	148465000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	6804000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5346000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	8419000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	9140000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	85098000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	57388000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	127932000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	139325000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	464458000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	398293000	USD
	us-gaap	Payments To Acquire And Develop Real Estate PaymentsToAcquireAndDevelopRealEstate	401976000	USD
	us-gaap	Payments To Acquire And Develop Real Estate PaymentsToAcquireAndDevelopRealEstate	412092000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	256359000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	403889000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	37389000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	43157000	USD
	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	12612000	USD
	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	0	USD
	sui	Issuanceofnotesandotherreceivables Issuanceofnotesandotherreceivables	35188000	USD
	sui	Issuanceofnotesandotherreceivables Issuanceofnotesandotherreceivables	30186000	USD
	sui	Repaymentof Notesand Other Receivables RepaymentofNotesandOtherReceivables	2713000	USD
	sui	Repaymentof Notesand Other Receivables RepaymentofNotesandOtherReceivables	3249000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	33390000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	42896000	USD
	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	8491000	USD
	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	43406000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-665708000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-799251000	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	619793000	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	441871000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1221980000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2681980000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1328440000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	2669348000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	230000000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	523721000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	220288000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	372219000	USD
	sui	Prepayment Penalty Debt PrepaymentPenaltyDebt	6226000	USD
	sui	Prepayment Penalty Debt PrepaymentPenaltyDebt	12610000	USD
	sui	Distributions To Stockholders Op Unit Holders And Preferred Op Unit Holders DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders	231500000	USD
	sui	Distributions To Stockholders Op Unit Holders And Preferred Op Unit Holders DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders	205639000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3322000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6568000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	281997000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	380131000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-48000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	291000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	80699000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-20536000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	34830000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	62262000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	115529000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	41726000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	7169000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	5673000	USD
	us-gaap	Interest Paid Net InterestPaidNet	100047000	USD
	us-gaap	Interest Paid Net InterestPaidNet	99925000	USD
	us-gaap	Distributions On Mandatorily Redeemable Securities DistributionsOnMandatorilyRedeemableSecurities	3130000	USD
	us-gaap	Distributions On Mandatorily Redeemable Securities DistributionsOnMandatorilyRedeemableSecurities	3132000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1069000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	818000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	14062000	USD
	us-gaap	Dividends Dividends	7861000	USD
	us-gaap	Dividends Dividends	6442000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	793000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	1411000	USD
	sui	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Escrow NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationEscrow	0	USD
	sui	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Escrow NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationEscrow	1395000	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	78004000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3875952000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-7140000	USD
CY2020Q1	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	98000	USD
CY2020Q1	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	-85000	USD
CY2020Q1	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-5021000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	9000000	USD
CY2020Q1	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	-7300000	USD
CY2020Q1	sui	Remeasurementof Notes Receivable Equity Method Investment RemeasurementofNotesReceivableEquityMethodInvestment	1953000	USD
CY2020Q1	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	-1195000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-14283000	USD
CY2020Q1	sui	Temporary Equity Dividends TemporaryEquityDividends	457000	USD
CY2020Q1	us-gaap	Dividends Cash DividendsCash	76648000	USD
CY2020Q1	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	76450000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3786470000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	638669000	USD
CY2020Q2	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	-641000	USD
CY2020Q2	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	-67000	USD
CY2020Q2	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-8965000	USD
CY2020Q2	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-7376000	USD
CY2020Q2	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	3872000	USD
CY2020Q2	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	-300000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	63655000	USD
CY2020Q2	sui	Temporary Equity Dividends TemporaryEquityDividends	492000	USD
CY2020Q2	us-gaap	Dividends Cash DividendsCash	80606000	USD
CY2020Q2	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	83982000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4419369000	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	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-26071000	USD
CY2020Q3	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-5251000	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
CY2018Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	63592000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3167322000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-4321000	USD
CY2019Q1	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	256000	USD
CY2019Q1	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	-256000	USD
CY2019Q1	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-3793000	USD
CY2019Q1	sui	Temporary Equity Issuanceof Equity Units TemporaryEquityIssuanceofEquityUnits	51930000	USD
CY2019Q1	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	1575000	USD
CY2019Q1	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	178000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	36949000	USD
CY2019Q1	sui	Temporary Equity Dividends TemporaryEquityDividends	528000	USD
CY2019Q1	us-gaap	Dividends Cash DividendsCash	68153000	USD
CY2019Q1	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	115428000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3136909000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	447741000	USD
CY2019Q2	us-gaap	Reclassifications Of Temporary To Permanent Equity ReclassificationsOfTemporaryToPermanentEquity	-337000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	337000	USD
CY2019Q2	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	117000	USD
CY2019Q2	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	-117000	USD
CY2019Q2	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-4498000	USD
CY2019Q2	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	1913000	USD
CY2019Q2	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	15000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	45101000	USD
CY2019Q2	sui	Temporary Equity Dividends TemporaryEquityDividends	558000	USD
CY2019Q2	us-gaap	Dividends Cash DividendsCash	71151000	USD
CY2019Q2	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	114553000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3565343000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-1549000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	20800000	USD
CY2019Q3	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	3192000	USD
CY2019Q3	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	-93000	USD
CY2019Q3	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	-1717000	USD
CY2019Q3	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	2533000	USD
CY2019Q3	sui	Temporary Equity Dividends TemporaryEquityDividends	627000	USD
CY2019Q3	us-gaap	Dividends Cash DividendsCash	71064000	USD
CY2019Q3	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	119651000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3557220000	USD
	sui	Percent Manufactured Housing Residents PercentManufacturedHousingResidents	0.65
	sui	Percent Recreational Vehicle Guests PercentRecreationalVehicleGuests	0.35
CY2020Q3	us-gaap	Revenues Revenues	400514000	USD
CY2019Q3	us-gaap	Revenues Revenues	362443000	USD
	us-gaap	Revenues Revenues	1014082000	USD
	us-gaap	Revenues Revenues	962218000	USD
CY2019	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	20900000	USD
CY2020Q3	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	3517	site
CY2020Q3	sui	Numberof Unitsin Real Estate Property Development Sites NumberofUnitsinRealEstatePropertyDevelopmentSites	109	development_site
	sui	Numberof Motor Home Communities NumberofMotorHomeCommunities	2	community
CY2020Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	297089000	USD
CY2020Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	2838000	USD
CY2020Q3	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Current Assets Liabilities Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory	2390000	USD
CY2020Q3	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Other Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities	3616000	USD
CY2020Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	298701000	USD
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	244551000	USD
	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	54150000	USD
	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	298701000	USD
CY2020Q3	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	4500000	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	5714000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	7055000	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	2186000	USD
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	2400000	USD
CY2019Q4	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	10390	site
CY2019Q4	sui	Numberof Unitsin Real Estate Property Development Sites NumberofUnitsinRealEstatePropertyDevelopmentSites	926	development_site
CY2019	us-gaap	Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued	1972876	shares
CY2019	sui	Numberof Mh Sites NumberofMHSites	201	sites
CY2019	sui	Numberof Rv Sites NumberofRVSites	301	sites
CY2019	sui	Numberof Motor Home Communities NumberofMotorHomeCommunities	2	community
CY2019Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	488958	shares
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	825266000	USD
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	6163000	USD
CY2019Q4	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Current Assets Liabilities Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory	22302000	USD
CY2019Q4	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Other Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities	-49000	USD
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	853682000	USD
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	426461000	USD
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Long Term Debt BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt	61900000	USD
	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	365321000	USD
	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	853682000	USD
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Land BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand	7700000	USD
CY2019Q1	sui	Purchaseof Tangible Property PurchaseofTangibleProperty	300000	USD
CY2020Q3	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	191508000	USD
CY2019Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	157926000	USD
CY2020Q3	us-gaap	Receivable With Imputed Interest Net Amount ReceivableWithImputedInterestNetAmount	88300000	USD
CY2020Q3	us-gaap	Receivable With Imputed Interest Net Amount ReceivableWithImputedInterestNetAmount	88327000	USD
CY2019Q4	us-gaap	Receivable With Imputed Interest Net Amount ReceivableWithImputedInterestNetAmount	95580000	USD
CY2020Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	51500000	USD
CY2019Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	19000000.0	USD
CY2020Q3	sui	Undrawn Funds On Loans UndrawnFundsOnLoans	10500000	USD
CY2020Q3	sui	Other Receivables For Rent Water Sewer Usage OtherReceivablesForRentWaterSewerUsage	10000000.0	USD
CY2020Q3	sui	Allowance For Rent Water Sewer Usage Receivables AllowanceForRentWaterSewerUsageReceivables	6300000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	20800000	USD
CY2020Q3	sui	Insurance Receivables InsuranceReceivables	8300000	USD
CY2019Q4	sui	Other Receivables For Rent Water Sewer Usage OtherReceivablesForRentWaterSewerUsage	7800000	USD
CY2019Q4	sui	Allowance For Rent Water Sewer Usage Receivables AllowanceForRentWaterSewerUsageReceivables	2200000	USD
CY2019	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	20900000	USD
CY2019Q4	sui	Insurance Receivables InsuranceReceivables	9900000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	146324000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	88681000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	144256000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	77308000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3932000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3986000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11372000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11867000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3927000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	15446000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	10871000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	7496000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	5133000	USD
CY2020Q3	us-gaap	Equity Method Investments EquityMethodInvestments	46781000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	37776000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1204000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	513000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1348000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1380000	USD
CY2020Q3	sui	Variable Interest Entityasa Percentageof Consolidated Assets VariableInterestEntityasaPercentageofConsolidatedAssets	0.049	Rate
CY2019Q4	sui	Variable Interest Entityasa Percentageof Consolidated Assets VariableInterestEntityasaPercentageofConsolidatedAssets	0.047	Rate
CY2020Q3	sui	Variable Interest Entityasa Percentageof Consolidated Liabilities VariableInterestEntityasaPercentageofConsolidatedLiabilities	0.027	Rate
CY2019Q4	sui	Variable Interest Entityasa Percentageof Consolidated Liabilities VariableInterestEntityasaPercentageofConsolidatedLiabilities	0.025	Rate
CY2020Q3	sui	Vi Easa Percentageof Total Equity VIEasaPercentageofTotalEquity	0.010
CY2020Q3	us-gaap	Secured Debt SecuredDebt	3191380000	USD
CY2019Q4	us-gaap	Secured Debt SecuredDebt	3180592000	USD
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	183898000	USD
CY2020Q3	sui	Secured Debt And Other Borrowings SecuredDebtAndOtherBorrowings	3340613000	USD
CY2019Q4	sui	Secured Debt And Other Borrowings SecuredDebtAndOtherBorrowings	3434402000	USD
	sui	Debtweightedaveragetomaturitylength Debtweightedaveragetomaturitylength	P11Y4M24D
	sui	Debtweightedaveragetomaturitylength Debtweightedaveragetomaturitylength	P11Y1M6D
CY2020Q3	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.03863	Rate
CY2019Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.04026	Rate
CY2020Q3	us-gaap	Secured Debt SecuredDebt	3200000000	USD
CY2018Q2	sui	Financial Instruments Subjectto Mandatory Redemption Rate Of Return FinancialInstrumentsSubjecttoMandatoryRedemptionRateOfReturn	0.060
CY2020Q1	us-gaap	Debt Instrument Convertible Number Of Equity Instruments DebtInstrumentConvertibleNumberOfEquityInstruments	1013819	shares
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	154700000	USD
CY2020Q2	us-gaap	Long Term Debt LongTermDebt	1400000	USD
CY2020Q3	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	9200000	shares
CY2020Q3	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
CY2019Q2	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	3737500	shares
CY2019Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	452100000	USD
CY2020Q1	sui	Aggregate Valueof Sharestobe Issuedin Accordanceto Sales Agreement AggregateValueofSharestobeIssuedinAccordancetoSalesAgreement	450000000.0	USD
CY2020Q1	sui	Commission Maximum Percentageof Gross Sales Price Per Share Accordingto Sales Agreement CommissionMaximumPercentageofGrossSalesPricePerShareAccordingtoSalesAgreement	2.0
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	163800000	USD
CY2020Q2	sui	Temporary Equity Dividends For Term Two Percentage TemporaryEquityDividendsForTermTwoPercentage	0.030
CY2019Q3	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	2400000	USD
	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	458541	shares
CY2020Q3	sui	Number Of Share Based Compensation Plans NumberOfShareBasedCompensationPlans	2	numberOfPlans
	sui	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Percent Expected To Vest SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPercentExpectedToVest	0.756
CY2019Q3	sui	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Percent Expected To Vest SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPercentExpectedToVest	0.751
CY2020Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	-8806000	USD
	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	-9048000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	89756000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	64451000	USD
CY2020Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-1645000	USD
CY2019Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-1599000	USD
CY2020Q3	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	-6907000	USD
CY2019Q3	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	-5422000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	81204000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	57430000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
CY2019Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	428000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	81204000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	57002000	USD
	us-gaap	Profit Loss ProfitLoss	137633000	USD
	us-gaap	Profit Loss ProfitLoss	146694000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-4799000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	-4640000	USD
	us-gaap	Net Income Loss NetIncomeLoss	124028000	USD
	us-gaap	Net Income Loss NetIncomeLoss	133006000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1288000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	124028000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	131718000	USD
CY2020Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	7647469000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	7232620000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	115529000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	34830000	USD
CY2020Q3	us-gaap	Marketable Securities MarketableSecurities	107083000	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	94727000	USD
CY2020Q3	us-gaap	Inventory Finished Homes InventoryFinishedHomes	48130000	USD
CY2019Q4	us-gaap	Inventory Finished Homes InventoryFinishedHomes	62061000	USD
CY2020Q3	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	191508000	USD
CY2019Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	157926000	USD
CY2020Q3	us-gaap	Other Assets OtherAssets	225998000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	219896000	USD
CY2020Q3	us-gaap	Assets Assets	8335717000	USD
CY2019Q4	us-gaap	Assets Assets	7802060000	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
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2020Q3	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	100000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	500000	USD
CY2019Q3	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	400000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	900000	USD
CY2020Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-600000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-800000	USD
CY2019Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	300000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-36000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	81204000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	57002000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	124028000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	131718000	USD
CY2020Q3	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	536000	USD
CY2019Q3	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	437000	USD
	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	821000	USD
	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	1020000	USD
CY2020Q3	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	80668000	USD
CY2019Q3	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	56565000	USD
	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	123207000	USD
	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	130698000	USD
CY2020Q3	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2019Q3	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	437000	USD
	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	80668000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	57002000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	123207000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	130698000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97542000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	89847000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95270000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	87499000	shares
CY2020Q3	sui	Weighted Average Common Shares Outstanding Adjustment Common Share From Forward Sale WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale	6000	shares
CY2019Q3	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
	sui	Weighted Average Common Shares Outstanding Adjustment Common Share From Forward Sale WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale	0	shares
CY2020Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1000	shares
CY2019Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	484000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	97549000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	90332000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	95273000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	87500000	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.83
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.29
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.49
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5335000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	6179000	shares
CY2020Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	51487000	USD
CY2020Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	51487000	USD
CY2019Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	18960000	USD
CY2019Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	18960000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	821000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	97000	USD
CY2020Q3	sui	Operating And Finance Leases Liability Payments Remainderof Fiscal Year OperatingAndFinanceLeasesLiabilityPaymentsRemainderofFiscalYear	918000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2842000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	120000	USD
CY2020Q3	sui	Operating And Finance Leases Liability Payments Due Year Two OperatingAndFinanceLeasesLiabilityPaymentsDueYearTwo	2962000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2863000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	120000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	120000	USD
CY2020Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	4135000	USD
CY2020Q3	sui	Operating And Finance Leases Liability Payments Due Year Three OperatingAndFinanceLeasesLiabilityPaymentsDueYearThree	2983000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2993000	USD
CY2020Q3	sui	Operating And Finance Leases Liability Payments Due Year Four OperatingAndFinanceLeasesLiabilityPaymentsDueYearFour	3113000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3300000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	4060000	USD
CY2020Q3	sui	Operating And Finance Leases Liability Payments Due Year Five OperatingAndFinanceLeasesLiabilityPaymentsDueYearFive	7360000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	32774000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2020Q3	sui	Operating And Finance Leases Liability Payments Dueafter Year Five OperatingAndFinanceLeasesLiabilityPaymentsDueafterYearFive	32774000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	45593000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	4517000	USD
CY2020Q3	sui	Operating And Finance Leases Liability Payment Due OperatingAndFinanceLeasesLiabilityPaymentDue	50110000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	20218000	USD
CY2020Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	382000	USD
CY2020Q3	sui	Operating And Finance Leases Liability Undiscounted Excess Amount OperatingAndFinanceLeasesLiabilityUndiscountedExcessAmount	20600000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	25375000	USD
CY2020Q3	sui	Operating And Finance Leases Liability OperatingAndFinanceLeasesLiability	29510000	USD
CY2020Q3	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	4135000	USD
CY2019Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	4081000	USD
	sui	Rightof Use Asset Obtainedin Exchangefor New Operating Lease Liability RightofUseAssetObtainedinExchangeforNewOperatingLeaseLiability	24365000	USD
CY2019	sui	Rightof Use Asset Obtainedin Exchangefor New Operating Lease Liability RightofUseAssetObtainedinExchangeforNewOperatingLeaseLiability	23751000	USD
CY2020Q3	us-gaap	Below Market Lease Net BelowMarketLeaseNet	27802000	USD
CY2019Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	28366000	USD
CY2020Q3	us-gaap	Capital Lease Obligations CapitalLeaseObligations	4135000	USD
CY2019Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	4081000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	25375000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	24222000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	-18000	USD
CY2019Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	-18000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	-54000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	-55000	USD
CY2020Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	26000	USD
CY2019Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	26000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	77000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	77000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	973000	USD
CY2019Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	794000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2925000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2598000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	1412000	USD
CY2019Q3	us-gaap	Lease Cost LeaseCost	1270000	USD
	us-gaap	Lease Cost LeaseCost	4168000	USD
	us-gaap	Lease Cost LeaseCost	3834000	USD
CY2020Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y9M
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P25Y11M19D
CY2020Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0250
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0412
	us-gaap	Operating Lease Payments OperatingLeasePayments	1836000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	1504000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	23000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	23000	USD
	sui	Operating And Finance Lease Payments OperatingAndFinanceLeasePayments	1859000	USD
	sui	Operating And Finance Lease Payments OperatingAndFinanceLeasePayments	1527000	USD
	us-gaap	Adjustments To Additional Paid In Capital Mark To Market AdjustmentsToAdditionalPaidInCapitalMarkToMarket	300000	USD

Files In Submission

Name	View Source	Status
0000912593-20-000165-index-headers.html	Edgar Link	pending
0000912593-20-000165-index.html	Edgar Link	pending
0000912593-20-000165.txt	Edgar Link	pending
0000912593-20-000165-xbrl.zip	Edgar Link	pending
exhibit311-09302020ceo.htm	Edgar Link	pending
exhibit312-09302020cfo.htm	Edgar Link	pending
exhibit321-09302020ceo.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
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
sui-20200930.htm	Edgar Link	pending
sui-20200930.xsd	Edgar Link	pending
sui-20200930_cal.xml	Edgar Link	unprocessable
sui-20200930_def.xml	Edgar Link	unprocessable
sui-20200930_htm.xml	Edgar Link	completed
sui-20200930_lab.xml	Edgar Link	unprocessable
sui-20200930_pre.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$SUI
SUN COMMUNITIES INC Stock $sui

2020 Q4 Form 10-Q Financial Statement

#000091259320000165 Filed on October 22, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUI SUN COMMUNITIES INC Stock $sui

2020 Q4 Form 10-Q Financial Statement

#000091259320000165 Filed on October 22, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUI
SUN COMMUNITIES INC Stock $sui