$SUI
SUN COMMUNITIES INC Stock $sui

$sui Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-Q Financial Statement

#000091259319000130 Filed on October 24, 2019

Income Statement

Concept	2019 Q4	2019 Q3	2018 Q3
Revenue	$301.8M	$362.4M	$323.4M
YoY Change	10.15%	12.07%	20.57%
Cost Of Revenue	$128.1M	$36.32M	$33.69M
YoY Change	10.62%	7.79%	-70.5%
Gross Profit	$173.7M	$326.1M	$289.7M
YoY Change	9.8%	12.57%	88.01%
Gross Profit Margin	57.55%	89.98%	89.58%
Selling, General & Admin	$29.50M	$26.92M	$23.81M
YoY Change	18.0%	13.07%	10.91%
% of Gross Profit	16.98%	8.25%	8.22%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$98.80M	$76.53M	$71.98M
YoY Change	21.82%	6.32%	12.07%
% of Gross Profit	56.88%	23.47%	24.85%
Operating Expenses	$128.4M	$26.92M	$23.81M
YoY Change	21.13%	13.07%	10.91%
Operating Profit	$45.30M	$299.2M	$175.8M
YoY Change	-13.22%	70.15%	19.64%
Interest Expense	-$34.50M	-$33.40M	$33.52M
YoY Change	3.29%	-199.64%	4.48%
% of Operating Profit	-76.16%	-11.16%	19.06%
Other Income/Expense, Net	$4.500M	-$1.362M	$1.231M
YoY Change	-184.91%	-210.64%	-63.2%
Pretax Income	$7.984M	$56.45M	$50.29M
YoY Change	-52.59%	12.25%	97.28%
Income Tax	-$100.0K	$800.0K	$213.0K
% Of Pretax Income	-1.25%	1.42%	0.42%
Net Earnings	$28.55M	$57.00M	$46.06M
YoY Change	215.82%	23.76%	91.0%
Net Earnings / Revenue	9.46%	15.73%	14.24%
Basic Earnings Per Share	$0.31	$0.63	$0.56
Diluted Earnings Per Share	$0.31	$0.63	$0.56
COMMON SHARES
Basic Shares Outstanding	90.69M shares	89.85M shares	81.60M shares
Diluted Shares Outstanding		90.33M shares	82.08M shares

Balance Sheet

Concept	2019 Q4	2019 Q3	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$116.8M	$120.9M	$114.0M
YoY Change	17.61%	6.07%	-16.79%
Cash & Equivalents	$22.10M	$26.20M	$113.6M
Short-Term Investments	$94.73M	$94.73M
Other Short-Term Assets
YoY Change
Inventory	$62.00M	$55.00M	$41.00M
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$140.0M	$249.0M	$317.0M
YoY Change	-44.66%	-21.45%	-8.12%
LONG-TERM ASSETS
Property, Plant & Equipment	$7.289B	$6.814B	$6.054B
YoY Change	19.14%	12.55%	8.61%
Goodwill	$0.00
YoY Change
Intangibles
YoY Change
Long-Term Investments	$37.78M	$37.94M
YoY Change	23.45%
Other Assets
YoY Change
Total Long-Term Assets	$7.662B	$7.553B	$6.337B
YoY Change	18.66%	19.19%	9.01%
TOTAL ASSETS
Total Short-Term Assets	$140.0M	$249.0M	$317.0M
Total Long-Term Assets	$7.662B	$7.553B	$6.337B
Total Assets	$7.802B	$7.802B	$6.654B
YoY Change	16.27%	17.26%	8.05%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$127.0M
YoY Change
Accrued Expenses	$24.00M	$25.00M
YoY Change
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	$223.0M	$95.00M	$63.00M
YoY Change	253.97%	50.79%	10.53%
LONG-TERM LIABILITIES
Long-Term Debt	$3.438B	$3.275B	$3.005B
YoY Change	10.05%	8.99%	0.07%
Other Long-Term Liabilities	$186.0M	$351.0M	$299.0M
YoY Change	-36.3%	17.39%	2.75%
Total Long-Term Liabilities	$3.624B	$3.626B	$3.304B
YoY Change	6.09%	9.75%	0.3%
TOTAL LIABILITIES
Total Short-Term Liabilities	$223.0M	$95.00M	$63.00M
Total Long-Term Liabilities	$3.624B	$3.626B	$3.304B
Total Liabilities	$3.848B	$3.721B	$3.367B
YoY Change	10.61%	10.5%	0.49%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$932.0K	$907.0K	$864.0K
YoY Change	7.87%	4.98%	8.95%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.820B	$3.500B	$3.159B
YoY Change
Total Liabilities & Shareholders Equity	$7.802B	$7.398B	$6.654B
YoY Change	16.27%	11.18%	8.05%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2018 Q3
OPERATING ACTIVITIES
Net Income	$28.55M	$57.00M	$46.06M
YoY Change	215.82%	23.76%	91.0%
Depreciation, Depletion And Amortization	$98.80M	$76.53M	$71.98M
YoY Change	21.82%	6.32%	12.07%
Cash From Operating Activities	$78.40M	$138.5M	$102.5M
YoY Change	26.66%	35.12%	47.48%
INVESTING ACTIVITIES
Capital Expenditures	-$68.80M	-$95.70M	-$45.30M
YoY Change	371.23%	111.26%	49.01%
Acquisitions
YoY Change
Other Investing Activities	-$142.4M	-$133.0M	-$92.30M
YoY Change	-18.21%	44.1%	31.48%
Cash From Investing Activities	-$211.2M	-$228.8M	-$137.6M
YoY Change	11.98%	66.28%	36.78%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$499.9M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	125.8M	86.10M	127.2M
YoY Change	108.62%	-32.31%	-272.12%
NET CHANGE
Cash From Operating Activities	78.40M	138.5M	102.5M
Cash From Investing Activities	-211.2M	-228.8M	-137.6M
Cash From Financing Activities	125.8M	86.10M	127.2M
Net Change In Cash	-7.000M	-4.200M	92.10M
YoY Change	-89.46%	-104.56%	-187.71%
FREE CASH FLOW
Cash From Operating Activities	$78.40M	$138.5M	$102.5M
Capital Expenditures	-$68.80M	-$95.70M	-$45.30M
Free Cash Flow	$147.2M	$234.2M	$147.8M
YoY Change	92.42%	58.46%	47.95%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
	dei	Entity Central Index Key EntityCentralIndexKey	0000912593
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CY2019Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	180000000	shares
CY2019Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	180000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	86357000	shares
CY2019Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	90690000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	86357000	shares
CY2019Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	90690000	shares
CY2018Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	4100000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3216000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized		USD
CY2018Q3	us-gaap	Lessee Operating Lease Lease Not Yet Commenced Term Of Contract1 LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1	P7Y
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2019-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity Registrant Name EntityRegistrantName	SUN COMMUNITIES INC
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity File Number EntityFileNumber	1-12616
	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
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CY2019Q3	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	12661000	USD
CY2018Q3	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	0	USD
	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	16548000	USD
	sui	Remeasurement Of Marketable Securities RemeasurementOfMarketableSecurities	0	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4408000	USD
CY2018Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1231000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1489000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3214000	USD
CY2019Q3	sui	Distributions From Affiliate DistributionsFromAffiliate	77000	USD
CY2018Q3	sui	Distributions From Affiliate DistributionsFromAffiliate	126000	USD
	sui	Distributions From Affiliate DistributionsFromAffiliate	814000	USD
	sui	Distributions From Affiliate DistributionsFromAffiliate	59000	USD
CY2019Q3	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	420000	USD
CY2018Q3	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	213000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	906000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	612000	USD
CY2019Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	349000	USD
CY2018Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-199000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	36000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-434000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	64451000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	51715000	USD
	us-gaap	Profit Loss ProfitLoss	146694000	USD
	us-gaap	Profit Loss ProfitLoss	109486000	USD
CY2019Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	1599000	USD
CY2018Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	1152000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4071000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	9048000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	4640000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	3335000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5422000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	8392000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	57430000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	46492000	USD
	us-gaap	Net Income Loss NetIncomeLoss	133006000	USD
	us-gaap	Net Income Loss NetIncomeLoss	97759000	USD
CY2019Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	428000	USD
CY2018Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	432000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1288000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1305000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	57002000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	46060000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	131718000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	96454000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	89847000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	81599000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	87499000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	80022000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	90332000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	82081000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	87931000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80024000	shares
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.19
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.50
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.19
CY2019Q3	us-gaap	Profit Loss ProfitLoss	64451000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	51715000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1717000	USD
	us-gaap	Profit Loss ProfitLoss	146694000	USD
	us-gaap	Profit Loss ProfitLoss	109486000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1890000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1771000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1565000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	62734000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	53605000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	148465000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	107921000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5346000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4167000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	9140000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	8319000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	57388000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	49438000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	139325000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	99602000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	398293000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	301204000	USD
	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	412092000	USD
	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	257017000	USD
	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	403889000	USD
	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	305724000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	43157000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	34825000	USD
	sui	Issuanceofnotesandotherreceivables Issuanceofnotesandotherreceivables	30186000	USD
	sui	Issuanceofnotesandotherreceivables Issuanceofnotesandotherreceivables	216000	USD
	sui	Repaymentof Notesand Other Receivables RepaymentofNotesandOtherReceivables	3249000	USD
	sui	Repaymentof Notesand Other Receivables RepaymentofNotesandOtherReceivables	2880000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	42896000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	19851000	USD
	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	43406000	USD
	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-799251000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-545103000	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	441871000	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	624152000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2681980000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1187098000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	2669348000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1228907000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	523721000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	228336000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	372219000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	275401000	USD
	sui	Prepayment Penalty Debt PrepaymentPenaltyDebt	12610000	USD
	sui	Prepayment Penalty Debt PrepaymentPenaltyDebt	2024000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	1618000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
	sui	Distributions To Stockholders Op Unit Holders And Preferred Op Unit Holders DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders	205639000	USD
	sui	Distributions To Stockholders Op Unit Holders And Preferred Op Unit Holders DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders	177926000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6568000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1645000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	380131000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	349578000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	291000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-94000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-20536000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	105585000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	62262000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	23509000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	41726000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	129094000	USD
	us-gaap	Interest Paid Net InterestPaidNet	99925000	USD
	us-gaap	Interest Paid Net InterestPaidNet	94801000	USD
	us-gaap	Distributions On Mandatorily Redeemable Securities DistributionsOnMandatorilyRedeemableSecurities	3132000	USD
	us-gaap	Distributions On Mandatorily Redeemable Securities DistributionsOnMandatorilyRedeemableSecurities	2551000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	818000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	741000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	14062000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	16093000	USD
	us-gaap	Dividends Dividends	6442000	USD
	us-gaap	Dividends Dividends	7991000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	1411000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	1489000	USD
	sui	Conversion Of Series A Four Preferred Stock ConversionOfSeriesAFourPreferredStock	337000	USD
	sui	Conversion Of Series A Four Preferred Stock ConversionOfSeriesAFourPreferredStock	675000	USD
	sui	Stock Issued During Period Value New Issues Series A3 Preferred Op Units StockIssuedDuringPeriodValueNewIssuesSeriesA3PreferredOPUnits	3900000	USD
	sui	Stock Issued During Period Value New Issues Series A3 Preferred Op Units StockIssuedDuringPeriodValueNewIssuesSeriesA3PreferredOPUnits	3120000	USD
	sui	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Escrow NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationEscrow	1395000	USD
	sui	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Escrow NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationEscrow	0	USD
	us-gaap	Other Noncash Income Tax Expense OtherNoncashIncomeTaxExpense	12597000	USD
	us-gaap	Other Noncash Income Tax Expense OtherNoncashIncomeTaxExpense	0	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
CY2018Q4	sui	Temporary Equity And Stockholders Equity Including Portion Attributableto Noncontrolling Interest TemporaryEquityAndStockholdersEquityIncludingPortionAttributabletoNoncontrollingInterest	3230914000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-4321000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-4321000	USD
CY2019Q1	us-gaap	Temporary Equity Interest In Subsidiary Earnings TemporaryEquityInterestInSubsidiaryEarnings	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	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-3793000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1575000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1575000	USD
CY2019Q1	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	178000	USD
CY2019Q1	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	36949000	USD
CY2019Q1	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock And Temporary Equity NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStockAndTemporaryEquity	37127000	USD
CY2019Q1	sui	Temporary Equity Dividends TemporaryEquityDividends	528000	USD
CY2019Q1	us-gaap	Dividends Cash DividendsCash	68153000	USD
CY2019Q1	sui	Dividends Including Temporary Equity Cash DividendsIncludingTemporaryEquityCash	-68681000	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
CY2019Q1	sui	Temporary Equity And Stockholders Equity Including Portion Attributableto Noncontrolling Interest TemporaryEquityAndStockholdersEquityIncludingPortionAttributabletoNoncontrollingInterest	3252337000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	447741000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	447741000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	112000	USD
CY2019Q2	us-gaap	Reclassifications Of Temporary To Permanent Equity ReclassificationsOfTemporaryToPermanentEquity	-337000	USD
CY2019Q2	us-gaap	Temporary Equity Interest In Subsidiary Earnings TemporaryEquityInterestInSubsidiaryEarnings	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	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-4498000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1913000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1913000	USD
CY2019Q2	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	15000	USD
CY2019Q2	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	45101000	USD
CY2019Q2	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock And Temporary Equity NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStockAndTemporaryEquity	45116000	USD
CY2019Q2	sui	Temporary Equity Dividends TemporaryEquityDividends	558000	USD
CY2019Q2	us-gaap	Dividends Cash DividendsCash	71151000	USD
CY2019Q2	sui	Dividends Including Temporary Equity Cash DividendsIncludingTemporaryEquityCash	-71709000	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
CY2019Q2	sui	Temporary Equity And Stockholders Equity Including Portion Attributableto Noncontrolling Interest TemporaryEquityAndStockholdersEquityIncludingPortionAttributabletoNoncontrollingInterest	3679896000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-1549000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-1549000	USD
CY2019Q3	us-gaap	Temporary Equity Interest In Subsidiary Earnings TemporaryEquityInterestInSubsidiaryEarnings	788000	USD
CY2019Q3	sui	Variable Interest Entity Equity Interests Issued VariableInterestEntityEquityInterestsIssued	-93000	USD
CY2019Q3	sui	Temporary Equity And Stockholders Equity Interestin Subsidiary Earnings TemporaryEquityAndStockholdersEquityInterestinSubsidiaryEarnings	695000	USD
CY2019Q3	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-2404000	USD
CY2019Q3	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-2404000	USD
CY2019Q3	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-4382000	USD
CY2019Q3	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-4382000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1717000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1717000	USD
CY2019Q3	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	2533000	USD
CY2019Q3	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	61918000	USD
CY2019Q3	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock And Temporary Equity NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStockAndTemporaryEquity	64451000	USD
CY2019Q3	sui	Temporary Equity Dividends TemporaryEquityDividends	627000	USD
CY2019Q3	us-gaap	Dividends Cash DividendsCash	71064000	USD
CY2019Q3	sui	Dividends Including Temporary Equity Cash DividendsIncludingTemporaryEquityCash	-71691000	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
CY2019Q3	sui	Temporary Equity And Stockholders Equity Including Portion Attributableto Noncontrolling Interest TemporaryEquityAndStockholdersEquityIncludingPortionAttributabletoNoncontrollingInterest	3676871000	USD
CY2017Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	43066000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2663687000	USD
CY2017Q4	sui	Temporary Equity And Stockholders Equity Including Portion Attributableto Noncontrolling Interest TemporaryEquityAndStockholdersEquityIncludingPortionAttributabletoNoncontrollingInterest	2706753000	USD
CY2018Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-3296000	USD
CY2018Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-3296000	USD
CY2018Q1	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	59000	USD
CY2018Q1	sui	Stock Issued During Period Including Temporary Equity Value Conversionof Convertible Securities StockIssuedDuringPeriodIncludingTemporaryEquityValueConversionofConvertibleSecurities	-1000	USD
CY2018Q1	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-3579000	USD
CY2018Q1	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-3579000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1861000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1861000	USD
	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	71000	USD
CY2018Q1	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	33530000	USD
CY2018Q1	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock And Temporary Equity NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStockAndTemporaryEquity	33601000	USD
	sui	Temporary Equity Dividends TemporaryEquityDividends	171000	USD
CY2018Q1	us-gaap	Dividends Cash DividendsCash	60047000	USD
CY2018Q1	sui	Dividends Including Temporary Equity Cash DividendsIncludingTemporaryEquityCash	-60218000	USD
CY2018Q1	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	42906000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2635651000	USD
CY2018Q1	sui	Temporary Equity And Stockholders Equity Including Portion Attributableto Noncontrolling Interest TemporaryEquityAndStockholdersEquityIncludingPortionAttributabletoNoncontrollingInterest	2678557000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	89265000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	89265000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	234000	USD
CY2018Q2	sui	Stock Issued During Period Including Temporary Equity Value Conversionof Convertible Securities StockIssuedDuringPeriodIncludingTemporaryEquityValueConversionofConvertibleSecurities	1000	USD
CY2018Q2	us-gaap	Reclassifications Of Temporary To Permanent Equity ReclassificationsOfTemporaryToPermanentEquity	-675000	USD
CY2018Q2	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-4374000	USD
CY2018Q2	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-4374000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1594000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1594000	USD
CY2018Q2	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	21869000	USD
CY2018Q2	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	21869000	USD
CY2018Q2	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	48000	USD
CY2018Q2	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	24122000	USD
CY2018Q2	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock And Temporary Equity NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStockAndTemporaryEquity	24170000	USD
CY2018Q2	sui	Temporary Equity Dividends TemporaryEquityDividends	170000	USD
CY2018Q2	us-gaap	Dividends Cash DividendsCash	60745000	USD
CY2018Q2	sui	Dividends Including Temporary Equity Cash DividendsIncludingTemporaryEquityCash	-60915000	USD
CY2018Q2	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	63745000	USD
CY2018Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2691982000	USD
CY2018Q2	sui	Temporary Equity And Stockholders Equity Including Portion Attributableto Noncontrolling Interest TemporaryEquityAndStockholdersEquityIncludingPortionAttributabletoNoncontrollingInterest	2755727000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	538183000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	538183000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	49000	USD
CY2018Q3	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-3604000	USD
CY2018Q3	sui	Stock Based Compensation Amortization And Forfeitures StockBasedCompensationAmortizationAndForfeitures	-3604000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1890000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1890000	USD
CY2018Q3	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	107000	USD
CY2018Q3	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	107000	USD
CY2018Q3	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	106000	USD
CY2018Q3	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStock	51609000	USD
CY2018Q3	sui	Net Income Loss Including Portion Attributableto Noncontrolling Interestand Returnsfrom Preferred Stock And Temporary Equity NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandReturnsfromPreferredStockAndTemporaryEquity	51715000	USD
CY2018Q3	sui	Temporary Equity Dividends TemporaryEquityDividends	168000	USD
CY2018Q3	us-gaap	Dividends Cash DividendsCash	64617000	USD
CY2018Q3	sui	Dividends Including Temporary Equity Cash DividendsIncludingTemporaryEquityCash	-64785000	USD
CY2018Q3	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	63741000	USD
CY2018Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3222700000	USD
CY2018Q3	sui	Temporary Equity And Stockholders Equity Including Portion Attributableto Noncontrolling Interest TemporaryEquityAndStockholdersEquityIncludingPortionAttributabletoNoncontrollingInterest	3286441000	USD
CY2019Q3	us-gaap	Revenues Revenues	362443000	USD
CY2018Q3	us-gaap	Revenues Revenues	323413000	USD
	us-gaap	Revenues Revenues	962218000	USD
	us-gaap	Revenues Revenues	852822000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	20100000	USD
CY2018	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	16100000	USD
CY2019Q3	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	4825	site
CY2019Q3	sui	Numberof Unitsin Real Estate Property Development Sites NumberofUnitsinRealEstatePropertyDevelopmentSites	109	development_site
CY2019Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	407074000	USD
CY2019Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	2558000	USD
CY2019Q3	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Current Assets Liabilities Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory	14550000	USD
CY2019Q3	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Other Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities	3903000	USD
CY2019Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	420279000	USD
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	364449000	USD
CY2019Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Long Term Debt BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt	3900000	USD
	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	51930000	USD
	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	420279000	USD
CY2019Q3	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	9300000	USD
CY2019Q3	us-gaap	Payments To Acquire Land PaymentsToAcquireLand	4700000	USD
CY2019Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	14010000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	26938000	USD
CY2019Q3	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	6308000	USD
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	11181000	USD
CY2018Q4	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	4882	site
CY2018Q4	sui	Numberof Unitsin Real Estate Property Development Sites NumberofUnitsinRealEstatePropertyDevelopmentSites	1166	development_site
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	346986000	USD
CY2018Q4	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Current Assets Liabilities Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory	17199000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Long Term Debt BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt	3120000	USD
CY2018Q4	sui	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Other Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities	11990000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	349075000	USD
CY2018	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	291822000	USD
CY2018	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	35277000	USD
CY2018	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	349075000	USD
CY2018Q4	sui	Numberof Unitsin Real Estate Property Land Development Sites NumberofUnitsinRealEstatePropertyLandDevelopmentSites	2275	development_site
CY2018	us-gaap	Payments To Acquire Land PaymentsToAcquireLand	14000000.0	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	2300000	USD
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	2800000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	7100000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	8500000	USD
CY2018Q4	us-gaap	Other Borrowings OtherBorrowings	107731000	USD
CY2019Q3	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	174934000	USD
CY2018Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	160077000	USD
CY2019Q3	sui	Other Receivables For Rent Water Sewer Usage OtherReceivablesForRentWaterSewerUsage	8600000	USD
CY2019Q3	sui	Allowance For Rent Water Sewer Usage Receivables AllowanceForRentWaterSewerUsageReceivables	1800000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	20100000	USD
CY2019Q3	sui	Insurance Receivables InsuranceReceivables	9600000	USD
CY2019Q3	sui	Notes Receivables NotesReceivables	30200000	USD
CY2019Q3	us-gaap	Other Receivables OtherReceivables	6000000.0	USD
CY2018Q4	sui	Other Receivables For Rent Water Sewer Usage OtherReceivablesForRentWaterSewerUsage	7100000	USD
CY2018Q4	sui	Allowance For Rent Water Sewer Usage Receivables AllowanceForRentWaterSewerUsageReceivables	1500000	USD
CY2018	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	16100000	USD
CY2018Q4	sui	Insurance Receivables InsuranceReceivables	24100000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	136128000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	72876000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	120188000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	61010000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3986000	USD
CY2018Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4037000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11867000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11060000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	3873000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	14373000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	13981000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	9379000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	6004000	USD
CY2019Q3	us-gaap	Equity Method Investments EquityMethodInvestments	30700000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	30600000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	77000	USD
CY2018Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	126000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	814000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	59000	USD
CY2018Q4	sui	Variable Interest Entityasa Percentageof Consolidated Assets VariableInterestEntityasaPercentageofConsolidatedAssets	0.049	Rate
CY2019Q3	sui	Variable Interest Entityasa Percentageof Consolidated Liabilities VariableInterestEntityasaPercentageofConsolidatedLiabilities	0.030	Rate
CY2018Q4	sui	Variable Interest Entityasa Percentageof Consolidated Liabilities VariableInterestEntityasaPercentageofConsolidatedLiabilities	0.026	Rate
CY2019Q3	sui	Vi Easa Percentageof Total Equity VIEasaPercentageofTotalEquity	0.010
CY2018Q4	sui	Vi Easa Percentageof Total Equity VIEasaPercentageofTotalEquity	0.010
CY2018Q4	us-gaap	Line Of Credit LineOfCredit	128000000	USD
CY2019Q3	sui	Secured Debt And Other Borrowings SecuredDebtAndOtherBorrowings	3271341000	USD
CY2018Q4	sui	Secured Debt And Other Borrowings SecuredDebtAndOtherBorrowings	3124303000	USD
	sui	Debtweightedaveragetomaturitylength Debtweightedaveragetomaturitylength	P9Y9M18D
CY2018	sui	Debtweightedaveragetomaturitylength Debtweightedaveragetomaturitylength	P9Y
CY2019Q3	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.043	Rate
CY2018Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.045	Rate
CY2018Q2	sui	Numberof Real Estate Units Released NumberofRealEstateUnitsReleased	11	community
CY2019Q3	us-gaap	Secured Debt SecuredDebt	3000000000.0	USD
CY2018Q2	sui	Financial Instruments Subjectto Mandatory Redemption Rate Of Return FinancialInstrumentsSubjecttoMandatoryRedemptionRateOfReturn	0.060
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
	sui	Aggregate Valueof Sharestobe Issuedin Accordanceto Sales Agreement AggregateValueofSharestobeIssuedinAccordancetoSalesAgreement	450000000.0	USD
	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
	sui	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Percent Expected To Vest SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPercentExpectedToVest	0.751
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	100000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2019Q3	us-gaap	Profit Loss ProfitLoss	64451000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	51715000	USD
CY2019Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	1599000	USD
CY2018Q3	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	1152000	USD
CY2019Q3	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	5422000	USD
CY2018Q3	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	4071000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	57430000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	46492000	USD
CY2019Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	428000	USD
CY2018Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	432000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	57002000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	46060000	USD
	us-gaap	Profit Loss ProfitLoss	146694000	USD
	us-gaap	Profit Loss ProfitLoss	109486000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	4640000	USD
	sui	Preferredreturnto Series A1preferred O Punits PreferredreturntoSeriesA1preferredOPunits	3335000	USD
	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	9048000	USD
	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	8392000	USD
	us-gaap	Net Income Loss NetIncomeLoss	133006000	USD
	us-gaap	Net Income Loss NetIncomeLoss	97759000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1288000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1305000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	131718000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	96454000	USD
CY2019Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	6757439000	USD
CY2018Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	6118316000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	26198000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	50311000	USD
CY2019Q3	us-gaap	Marketable Securities MarketableSecurities	64818000	USD
CY2018Q4	us-gaap	Marketable Securities MarketableSecurities	49037000	USD
CY2019Q3	us-gaap	Inventory Finished Homes InventoryFinishedHomes	55234000	USD
CY2018Q4	us-gaap	Inventory Finished Homes InventoryFinishedHomes	49199000	USD
CY2019Q3	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	174934000	USD
CY2018Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	160077000	USD
CY2019Q3	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	93054000	USD
CY2018Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	106924000	USD
CY2019Q3	us-gaap	Other Assets OtherAssets	226177000	USD
CY2018Q4	us-gaap	Other Assets OtherAssets	176162000	USD
CY2019Q3	us-gaap	Assets Assets	7397854000	USD
CY2018Q4	us-gaap	Assets Assets	6710026000	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
CY2019Q3	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	400000	USD
CY2018Q3	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	200000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	900000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	600000	USD
CY2019Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	300000	USD
CY2018Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-200000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0.0	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-400000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	131718000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	57002000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	46060000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	96454000	USD
CY2019Q3	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	-437000	USD
CY2018Q3	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	-396000	USD
	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	-1020000	USD
	sui	Incomeloss Attributableto Common Stockholders Allocable To Non Vested Restricted Shares IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares	-830000	USD
CY2019Q3	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	56565000	USD
CY2018Q3	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	45664000	USD
	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	130698000	USD
	sui	Netincomeattributabletocommonshareholdersafterrestrictedstockallocation Netincomeattributabletocommonshareholdersafterrestrictedstockallocation	95624000	USD
CY2019Q3	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	437000	USD
CY2018Q3	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	396000	USD
	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	1020000	USD
	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	57002000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	46060000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	131718000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	95624000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	89847000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	81599000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	87499000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	80022000	shares
CY2019Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1000	shares
CY2018Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2000	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	484000	shares
CY2018Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	480000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	431000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	90332000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	82081000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	87931000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80024000	shares
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.19
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.50
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.19
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	6179000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	6172000	shares
CY2018Q4	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	54000000.0	USD
CY2019Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	30186000	USD
CY2019Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	30186000	USD
CY2018Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	0	USD
CY2018Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	0	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	26198000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	50311000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	113556000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	10127000	USD
CY2019Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	15528000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	11951000	USD
CY2018Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	15538000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	13382000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	41726000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	62262000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	129094000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	23509000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	712000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	97000	USD
CY2019Q3	sui	Operating And Finance Leases Liability Payments Remainderof Fiscal Year OperatingAndFinanceLeasesLiabilityPaymentsRemainderofFiscalYear	809000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2397000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	120000	USD
CY2019Q3	sui	Operating And Finance Leases Liability Payments Due Year Two OperatingAndFinanceLeasesLiabilityPaymentsDueYearTwo	2517000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2446000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	120000	USD
CY2019Q3	sui	Operating And Finance Leases Liability Payments Due Year Three OperatingAndFinanceLeasesLiabilityPaymentsDueYearThree	2566000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2483000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	120000	USD
CY2019Q3	sui	Operating And Finance Leases Liability Payments Due Year Four OperatingAndFinanceLeasesLiabilityPaymentsDueYearFour	2603000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2572000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	120000	USD
CY2019Q3	sui	Operating And Finance Leases Liability Payments Due Year Five OperatingAndFinanceLeasesLiabilityPaymentsDueYearFive	2692000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	35185000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	4060000	USD
CY2019Q3	sui	Operating And Finance Leases Liability Payments Dueafter Year Five OperatingAndFinanceLeasesLiabilityPaymentsDueafterYearFive	39245000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	45795000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	4637000	USD
CY2019Q3	sui	Operating And Finance Leases Liability Payment Due OperatingAndFinanceLeasesLiabilityPaymentDue	50432000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	21121000	USD
CY2019Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	485000	USD
CY2019Q3	sui	Operating And Finance Leases Liability Undiscounted Excess Amount OperatingAndFinanceLeasesLiabilityUndiscountedExcessAmount	21606000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	24674000	USD
CY2019Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	4152000	USD
CY2019Q3	sui	Operating And Finance Leases Liability OperatingAndFinanceLeasesLiability	28826000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	4152000	USD
CY2018Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	4098000	USD
	sui	Rightof Use Asset Obtainedin Exchangefor New Operating Lease Liability RightofUseAssetObtainedinExchangeforNewOperatingLeaseLiability	24197000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	28554000	USD
CY2018Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	29118000	USD
CY2019Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	4152000	USD
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	4098000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	24674000	USD
CY2019Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	18000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	55000	USD
CY2019Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	26000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	77000	USD
CY2019Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	794000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2598000	USD
CY2019Q2	us-gaap	Lease Cost LeaseCost	1306000	USD
	us-gaap	Lease Cost LeaseCost	3944000	USD
CY2018Q3	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	18000	USD
	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	55000	USD
CY2018Q3	us-gaap	Capital Leases Income Statement Interest Expense CapitalLeasesIncomeStatementInterestExpense	26000	USD
	us-gaap	Capital Leases Income Statement Interest Expense CapitalLeasesIncomeStatementInterestExpense	78000	USD
CY2018Q3	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	845000	USD
	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	2468000	USD
CY2018Q3	us-gaap	Lease Cost LeaseCost	1077000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	1504000	USD
	us-gaap	Lease Cost LeaseCost	3234000	USD
CY2019Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y9M
CY2019Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0403
CY2019Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P26Y10M24D
CY2019Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0250
	us-gaap	Operating Lease Payments OperatingLeasePayments	2556000	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	1527000	USD
	sui	Operating And Finance Lease Payments OperatingAndFinanceLeasePayments	2579000	USD
CY2019Q3	sui	Lessee Operating Lease Lease Not Yet Commenced Value LesseeOperatingLeaseLeaseNotYetCommencedValue	2900000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Lease Not Yet Commenced Term Of Contract1 LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1	P7Y

Files In Submission

Name	View Source	Status
0000912593-19-000130-index-headers.html	Edgar Link	pending
0000912593-19-000130-index.html	Edgar Link	pending
0000912593-19-000130.txt	Edgar Link	pending
0000912593-19-000130-xbrl.zip	Edgar Link	pending
exhibit311-09302019ceo.htm	Edgar Link	pending
exhibit312-09302019cfo.htm	Edgar Link	pending
exhibit321-09302019ceo.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
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report.css	Edgar Link	pending
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sui-20190930.xsd	Edgar Link	pending
sui-20190930_cal.xml	Edgar Link	unprocessable
sui-20190930_def.xml	Edgar Link	unprocessable
sui-20190930_lab.xml	Edgar Link	unprocessable
sui-20190930_pre.xml	Edgar Link	unprocessable
sui2019093010-q.htm	Edgar Link	pending
sui2019093010-q_htm.xml	Edgar Link	completed

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$SUI
SUN COMMUNITIES INC Stock $sui

2019 Q4 Form 10-Q Financial Statement

#000091259319000130 Filed on October 24, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUI SUN COMMUNITIES INC Stock $sui

2019 Q4 Form 10-Q Financial Statement

#000091259319000130 Filed on October 24, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUI
SUN COMMUNITIES INC Stock $sui