$EXR
Extra Space Storage Inc. Stock $exr

$exr Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-Q Financial Statement

#000162828024045038 Filed on November 04, 2024

Income Statement

Concept	2024 Q4	2024 Q3
Revenue		$824.8M
YoY Change		10.26%
Cost Of Revenue		$209.0M
YoY Change		12.87%
Gross Profit		$615.8M
YoY Change		9.4%
Gross Profit Margin		74.66%
Selling, General & Admin		$39.75M
YoY Change		6.28%
% of Gross Profit		6.46%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization		$195.0M
YoY Change		28.04%
% of Gross Profit		31.68%
Operating Expenses		$234.8M
YoY Change		23.77%
Operating Profit		$302.7M
YoY Change		0.98%
Interest Expense		-$88.94M
YoY Change		-172.37%
% of Operating Profit		-29.38%
Other Income/Expense, Net
YoY Change
Pretax Income		$183.8M
YoY Change		-3.63%
Income Tax		$10.86M
% Of Pretax Income		5.91%
Net Earnings		$193.2M
YoY Change		2.58%
Net Earnings / Revenue		23.42%
Basic Earnings Per Share		$0.91
Diluted Earnings Per Share		$0.91
COMMON SHARES
Basic Shares Outstanding	212.0M shares	211.9M shares
Diluted Shares Outstanding		220.3M shares

Balance Sheet

Concept	2024 Q4	2024 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments		$88.93M
YoY Change		-58.83%
Cash & Equivalents		$88.93M
Short-Term Investments
Other Short-Term Assets		$97.52M
YoY Change		3.75%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets		$299.2M
YoY Change		-32.31%
LONG-TERM ASSETS
Property, Plant & Equipment		$50.07M
YoY Change		9.73%
Goodwill		$170.8M
YoY Change		0.0%
Intangibles
YoY Change
Long-Term Investments		$1.360B
YoY Change		-1.29%
Other Assets		$8.108M
YoY Change		15.83%
Total Long-Term Assets		$27.76B
YoY Change		2.13%
TOTAL ASSETS
Total Short-Term Assets		$299.2M
Total Long-Term Assets		$27.76B
Total Assets		$28.06B
YoY Change		1.58%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable		$388.8M
YoY Change		-9.59%
Accrued Expenses		$706.5M
YoY Change		191.94%
Deferred Revenue
YoY Change
Short-Term Debt		$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$1.095B
YoY Change		62.98%
LONG-TERM LIABILITIES
Long-Term Debt		$11.53B
YoY Change		5.26%
Other Long-Term Liabilities		$481.4M
YoY Change		10.91%
Total Long-Term Liabilities		$12.01B
YoY Change		5.47%
TOTAL LIABILITIES
Total Short-Term Liabilities		$1.095B
Total Long-Term Liabilities		$12.01B
Total Liabilities		$13.10B
YoY Change		8.67%
SHAREHOLDERS EQUITY
Retained Earnings		-$817.9M
YoY Change		223.42%
Common Stock		$14.83B
YoY Change		0.54%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity		$14.01B
YoY Change
Total Liabilities & Shareholders Equity		$28.06B
YoY Change		1.58%

Cashflow Statement

Concept	2024 Q4	2024 Q3
OPERATING ACTIVITIES
Net Income		$193.2M
YoY Change		2.58%
Depreciation, Depletion And Amortization		$195.0M
YoY Change		28.04%
Cash From Operating Activities		$468.4M
YoY Change		14.65%
INVESTING ACTIVITIES
Capital Expenditures		$241.0M
YoY Change		134.42%
Acquisitions
YoY Change
Other Investing Activities		$128.2M
YoY Change		-110.91%
Cash From Investing Activities		-$112.7M
YoY Change		-91.18%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities		-342.8M
YoY Change		-132.96%
NET CHANGE
Cash From Operating Activities		468.4M
Cash From Investing Activities		-112.7M
Cash From Financing Activities		-342.8M
Net Change In Cash		12.78M
YoY Change		-92.5%
FREE CASH FLOW
Cash From Operating Activities		$468.4M
Capital Expenditures		$241.0M
Free Cash Flow		$227.4M
YoY Change		-25.62%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
	dei	Amendment Flag AmendmentFlag	false
	dei	Entity Central Index Key EntityCentralIndexKey	0001289490
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-32269
	dei	Entity Registrant Name EntityRegistrantName	EXTRA SPACE STORAGE INC.
	dei	Entity Address Address Line1 EntityAddressAddressLine1	2795 East Cottonwood Parkway, Suite 300
	dei	Entity Address City Or Town EntityAddressCityOrTown	Salt Lake City
	dei	Entity Address State Or Province EntityAddressStateOrProvince	UT
	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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CY2024Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	24385492000	usd
CY2023Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	24555873000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	88931000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	99062000	usd
CY2024Q3	us-gaap	Other Assets OtherAssets	495861000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	597700000	usd
CY2024Q3	us-gaap	Assets Assets	28063117000	usd
CY2023Q4	us-gaap	Assets Assets	27456262000	usd
CY2024Q3	us-gaap	Other Notes Payable OtherNotesPayable	1011705000	usd
CY2023Q4	us-gaap	Other Notes Payable OtherNotesPayable	1273549000	usd
CY2024Q3	us-gaap	Unsecured Debt UnsecuredDebt	2194894000	usd
CY2023Q4	us-gaap	Unsecured Debt UnsecuredDebt	2650581000	usd
CY2024Q3	us-gaap	Senior Notes SeniorNotes	7437231000	usd
CY2024Q3	us-gaap	Line Of Credit LineOfCredit	884000000	usd
CY2023Q4	us-gaap	Line Of Credit LineOfCredit	682000000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	706491000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	236515000	usd
CY2024Q3	exr	Cash Distributions In Unconsolidated Real Estate Ventures CashDistributionsInUnconsolidatedRealEstateVentures	74173000	usd
CY2023Q4	exr	Cash Distributions In Unconsolidated Real Estate Ventures CashDistributionsInUnconsolidatedRealEstateVentures	71069000	usd
CY2024Q3	us-gaap	Other Liabilities OtherLiabilities	407183000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	383463000	usd
CY2024Q3	us-gaap	Liabilities Liabilities	13104434000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	12042313000	usd
CY2024Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2024Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
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CY2024Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2024Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2024Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2024Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
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CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
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CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2024Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	211981742	shares
CY2024Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	211981742	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	211278803	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	211278803	shares
CY2024Q3	us-gaap	Common Stock Value CommonStockValue	2120000	usd
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	2113000	usd
CY2024Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	14823018000	usd
CY2023Q4	us-gaap	Minority Interest In Preferred Unit Holders MinorityInterestInPreferredUnitHolders	222360000	usd
CY2024Q3	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	756764000	usd
CY2023Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	800668000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14958683000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15413949000	usd
CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	28063117000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	27456262000	usd
CY2024Q3	us-gaap	Lease Income LeaseIncome	710874000	usd
CY2023Q3	us-gaap	Lease Income LeaseIncome	650887000	usd
	us-gaap	Lease Income LeaseIncome	2096018000	usd
	us-gaap	Lease Income LeaseIncome	1525596000	usd
CY2024Q3	us-gaap	Direct Premiums Earned DirectPremiumsEarned	84048000	usd
CY2023Q3	us-gaap	Direct Premiums Earned DirectPremiumsEarned	69128000	usd
	us-gaap	Direct Premiums Earned DirectPremiumsEarned	249100000	usd
	us-gaap	Direct Premiums Earned DirectPremiumsEarned	165265000	usd
CY2024Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	29882000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	28019000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	89888000	usd
CY2024Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	39750000	usd
CY2023Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	37406000	usd
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	123373000	usd
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	107011000	usd
CY2024Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	195046000	usd
CY2023Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	152338000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	586821000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	309914000	usd
CY2024Q3	us-gaap	Costs And Expenses CostsAndExpenses	461341000	usd
CY2023Q3	us-gaap	Costs And Expenses CostsAndExpenses	448242000	usd
	us-gaap	Costs And Expenses CostsAndExpenses	1376295000	usd
	us-gaap	Costs And Expenses CostsAndExpenses	925797000	usd
CY2024Q3	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	-8961000	usd
CY2023Q3	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	0	usd
	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	-63620000	usd
	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	0	usd
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
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CY2023Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	334518000	usd
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2023Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	14750388000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	3340000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	17435000	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-817865000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-379015000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	14010613000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	14390921000	usd
CY2024Q3	us-gaap	Minority Interest In Preferred Unit Holders MinorityInterestInPreferredUnitHolders	191306000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	71609000	usd
CY2024Q3	us-gaap	Revenues Revenues	824804000	usd
CY2023Q3	us-gaap	Revenues Revenues	748034000	usd
	us-gaap	Revenues Revenues	2435006000	usd
	us-gaap	Revenues Revenues	1762470000	usd
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CY2023Q3	us-gaap	Cost Of Revenue CostOfRevenue	185194000	usd
	us-gaap	Cost Of Revenue CostOfRevenue	610455000	usd
	us-gaap	Cost Of Revenue CostOfRevenue	416997000	usd
CY2023Q3	exr	Tenant Reinsurance Expense TenantReinsuranceExpense	19130000	usd
	exr	Tenant Reinsurance Expense TenantReinsuranceExpense	55646000	usd
	exr	Tenant Reinsurance Expense TenantReinsuranceExpense	37701000	usd
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	us-gaap	Operating Income Loss OperatingIncomeLoss	943328000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	836673000	usd
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CY2023Q3	exr	Interest Expense Excluding Amortization Of Debt Discount Premium InterestExpenseExcludingAmortizationOfDebtDiscountPremium	122899000	usd
	exr	Interest Expense Excluding Amortization Of Debt Discount Premium InterestExpenseExcludingAmortizationOfDebtDiscountPremium	412875000	usd
	exr	Interest Expense Excluding Amortization Of Debt Discount Premium InterestExpenseExcludingAmortizationOfDebtDiscountPremium	289370000	usd
CY2024Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	11005000	usd
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	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	32563000	usd
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	8228000	usd
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	us-gaap	Investment Income Interest InvestmentIncomeInterest	89746000	usd
	us-gaap	Investment Income Interest InvestmentIncomeInterest	62607000	usd
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	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	48508000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	38602000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	14417000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	19433000	usd
	exr	Noncash Interest Income NoncashInterestIncome	23455000	usd
	exr	Noncash Interest Income NoncashInterestIncome	30127000	usd
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	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	704069000	usd
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	43003000	usd
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CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	216121000	usd
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	20-1076777
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	84121
	dei	City Area Code CityAreaCode	801
	dei	Local Phone Number LocalPhoneNumber	365-4600
	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value
	dei	Trading Symbol TradingSymbol	EXR
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CY2024Q3	exr	Debt Securities Held To Maturity And Financing Receivable After Allowance For Credit Loss And Interest Receivable DebtSecuritiesHeldToMaturityAndFinancingReceivableAfterAllowanceForCreditLossAndInterestReceivable	1338619000	usd
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CY2024Q3	exr	Tenant Reinsurance Expense TenantReinsuranceExpense	17510000	usd
CY2023Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	1071617000	usd
CY2023Q4	us-gaap	Senior Notes SeniorNotes	6410618000	usd
CY2024Q3	exr	Asset Acquisition Acquisition Related Costs AssetAcquisitionAcquisitionRelatedCosts	0	usd
CY2023Q3	exr	Asset Acquisition Acquisition Related Costs AssetAcquisitionAcquisitionRelatedCosts	54174000	usd
	exr	Asset Acquisition Acquisition Related Costs AssetAcquisitionAcquisitionRelatedCosts	0	usd
	exr	Asset Acquisition Acquisition Related Costs AssetAcquisitionAcquisitionRelatedCosts	54174000	usd
CY2024Q3	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	-51763000	usd
CY2023Q3	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	0	usd
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	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	0	usd
CY2024Q3	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	13730000	usd
CY2023Q3	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	0	usd
	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	13730000	usd
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CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10857000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6944000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27443000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17238000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	202945000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	198856000	usd
	us-gaap	Profit Loss ProfitLoss	622431000	usd
	us-gaap	Profit Loss ProfitLoss	623046000	usd
CY2024Q3	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1932000	usd
CY2023Q3	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	2253000	usd
	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	6073000	usd
	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	6761000	usd
CY2024Q3	exr	Minority Interest In Net Income Loss Operating Partnerships And Other MinorityInterestInNetIncomeLossOperatingPartnershipsAndOther	7803000	usd
CY2023Q3	exr	Minority Interest In Net Income Loss Operating Partnerships And Other MinorityInterestInNetIncomeLossOperatingPartnershipsAndOther	8253000	usd
	exr	Minority Interest In Net Income Loss Operating Partnerships And Other MinorityInterestInNetIncomeLossOperatingPartnershipsAndOther	24164000	usd
	exr	Minority Interest In Net Income Loss Operating Partnerships And Other MinorityInterestInNetIncomeLossOperatingPartnershipsAndOther	29221000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	193210000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	188350000	usd
	us-gaap	Net Income Loss NetIncomeLoss	592194000	usd
	us-gaap	Net Income Loss NetIncomeLoss	587064000	usd
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.91
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.96
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.79
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.78
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.91
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.79
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.78
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	211698436	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	195324444	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	211522578	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	155112071	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	220298870	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	195328020	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	220177692	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155116149	shares
CY2024Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.62
CY2023Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.62
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	4.86
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	4.86
CY2024Q3	us-gaap	Profit Loss ProfitLoss	202945000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	198856000	usd
	us-gaap	Profit Loss ProfitLoss	622431000	usd
	us-gaap	Profit Loss ProfitLoss	623046000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-24887000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2264000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-14691000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-4175000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	178058000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	196592000	usd
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	607740000	usd
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	618871000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	8749000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10395000	usd
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	29641000	usd
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	35693000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	169309000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	186197000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	578099000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	583178000	usd
CY2024Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15130840000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	8224000	usd
CY2024Q3	exr	Adjustments To Additional Paid In Capital Stock Issued Shelf Registration Offering Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedShelfRegistrationOfferingCosts	28000	usd
CY2024Q3	exr	Noncontrolling Interest Increase From Transactions With Other Noncontrolling Interests Net NoncontrollingInterestIncreaseFromTransactionsWithOtherNoncontrollingInterestsNet	825000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	202945000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-24887000	usd
CY2024Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	15828000	usd
CY2024Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.62
CY2024Q3	us-gaap	Dividends Common Stock DividendsCommonStock	343408000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14958683000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15413949000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	14419000	usd
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	365000	usd
	exr	Adjustments To Additional Paid In Capital Stock Issued Shelf Registration Offering Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedShelfRegistrationOfferingCosts	522000	usd
	exr	Noncontrolling Interest Increase From Transactions With Other Noncontrolling Interests Net NoncontrollingInterestIncreaseFromTransactionsWithOtherNoncontrollingInterestsNet	1687000	usd
	us-gaap	Profit Loss ProfitLoss	622431000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-14691000	usd
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	47911000	usd
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	4.86
	us-gaap	Dividends Common Stock DividendsCommonStock	1031044000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14958683000	usd
CY2023Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4035407000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	6994000	usd
CY2023Q3	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	63000	usd
CY2023Q3	exr	Life Storage Merger Issuance Of Common Stock And Operating Partnership Units LifeStorageMergerIssuanceOfCommonStockAndOperatingPartnershipUnits	11602808000	usd
CY2023Q3	exr	Noncontrolling Interest Increase From Transactions With Other Noncontrolling Interests Net NoncontrollingInterestIncreaseFromTransactionsWithOtherNoncontrollingInterestsNet	5209000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	198856000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2264000	usd
CY2023Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	14960000	usd
CY2023Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.62
CY2023Q3	us-gaap	Dividends Common Stock DividendsCommonStock	265286000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15566701000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4078274000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	19433000	usd
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	7606000	usd
	exr	Life Storage Merger Issuance Of Common Stock And Operating Partnership Units LifeStorageMergerIssuanceOfCommonStockAndOperatingPartnershipUnits	11602808000	usd
	exr	Noncontrolling Interest Increase From Transactions With Other Noncontrolling Interests Net NoncontrollingInterestIncreaseFromTransactionsWithOtherNoncontrollingInterestsNet	7309000	usd
	us-gaap	Profit Loss ProfitLoss	623046000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-4175000	usd
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	43003000	usd
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	4.86
	us-gaap	Dividends Common Stock DividendsCommonStock	704069000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15566701000	usd
	us-gaap	Profit Loss ProfitLoss	622431000	usd
	us-gaap	Profit Loss ProfitLoss	623046000	usd
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	586821000	usd
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	309914000	usd
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	13419000	usd
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	9716000	usd
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	32563000	usd
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	8228000	usd
	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	13730000	usd
	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	0	usd
	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	-51763000	usd
	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	0	usd
	exr	Gains Losses On Real Estate Transactions Net Of Impairment Of Real Estate GainsLossesOnRealEstateTransactionsNetOfImpairmentOfRealEstate	-63620000	usd
	exr	Gains Losses On Real Estate Transactions Net Of Impairment Of Real Estate GainsLossesOnRealEstateTransactionsNetOfImpairmentOfRealEstate	0	usd
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-21839000	usd
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-11484000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-45737000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	31675000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	45145000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	134310000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	18581000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-16370000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1479151000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1037959000	usd
	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	361126000	usd
	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	197333000	usd
	exr	Payments For Asset Acquisition Net Of Cash Acquired PaymentsForAssetAcquisitionNetOfCashAcquired	0	usd
	exr	Payments For Asset Acquisition Net Of Cash Acquired PaymentsForAssetAcquisitionNetOfCashAcquired	1182411000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	100507000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	66533000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	4415000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	2132000	usd
	exr	Payments For Investment In Unconsolidated Real Estate Entities PaymentsForInvestmentInUnconsolidatedRealEstateEntities	7175000	usd
	exr	Payments For Investment In Unconsolidated Real Estate Entities PaymentsForInvestmentInUnconsolidatedRealEstateEntities	179258000	usd
	exr	Return Of Investment Real Estate Ventures ReturnOfInvestmentRealEstateVentures	12999000	usd
	exr	Return Of Investment Real Estate Ventures ReturnOfInvestmentRealEstateVentures	0	usd
	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	739702000	usd
	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	210712000	usd
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	153971000	usd
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	73514000	usd
	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	175335000	usd
	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	134064000	usd
	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	15713000	usd
	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	9515000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-877503000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1636052000	usd
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	5542362000	usd
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	5194665000	usd
	us-gaap	Repayments Of Debt RepaymentsOfDebt	6062896000	usd
	us-gaap	Repayments Of Debt RepaymentsOfDebt	4617755000	usd
	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	1000000000	usd
	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	950000000	usd
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	12633000	usd
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	51359000	usd
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	365000	usd
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	0	usd
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	522000	usd
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	15000	usd
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1031044000	usd
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	48053000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-612406000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	723479000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-10758000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	125386000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	105083000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	94325000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	223121000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	99062000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	92868000	usd
CY2023Q4	us-gaap	Restricted Cash RestrictedCash	6021000	usd
CY2022Q4	us-gaap	Restricted Cash RestrictedCash	4867000	usd
CY2024Q3	us-gaap	Restricted Cash RestrictedCash	5394000	usd
CY2023Q3	us-gaap	Restricted Cash RestrictedCash	7000000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	94325000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	223121000	usd
	us-gaap	Interest Paid Net InterestPaidNet	381434000	usd
	us-gaap	Interest Paid Net InterestPaidNet	207569000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	30635000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	20222000	usd
	exr	Noncontrolling Interest Increase Decrease From Redemptions Of Operating Partnership Units NoncontrollingInterestIncreaseDecreaseFromRedemptionsOfOperatingPartnershipUnits	58375000	usd
	exr	Noncontrolling Interest Increase Decrease From Redemptions Of Operating Partnership Units NoncontrollingInterestIncreaseDecreaseFromRedemptionsOfOperatingPartnershipUnits	116336000	usd
	exr	Redemption Of Operating Partnership Units Held By Noncontrolling Interest Including Additional Paid In Capital RedemptionOfOperatingPartnershipUnitsHeldByNoncontrollingInterestIncludingAdditionalPaidInCapital	-58375000	usd
	exr	Redemption Of Operating Partnership Units Held By Noncontrolling Interest Including Additional Paid In Capital RedemptionOfOperatingPartnershipUnitsHeldByNoncontrollingInterestIncludingAdditionalPaidInCapital	-11336000	usd
	exr	Noncontrolling Interests In Operating Partnership Note Receivable Payoff NoncontrollingInterestsInOperatingPartnershipNoteReceivablePayoff	0	usd
	exr	Noncontrolling Interests In Operating Partnership Note Receivable Payoff NoncontrollingInterestsInOperatingPartnershipNoteReceivablePayoff	100000000	usd
	exr	Operating Partnership Unit Redemption Cash Proceeds OperatingPartnershipUnitRedemptionCashProceeds	0	usd
	exr	Operating Partnership Unit Redemption Cash Proceeds OperatingPartnershipUnitRedemptionCashProceeds	5000000	usd
	exr	Real Estate Additions Portion Not Yet Paid RealEstateAdditionsPortionNotYetPaid	9094000	usd
	exr	Real Estate Additions Portion Not Yet Paid RealEstateAdditionsPortionNotYetPaid	6835000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	9094000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	6835000	usd
	us-gaap	Nature Of Operations NatureOfOperations	ORGANIZATION<div style="margin-top:6pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Extra Space Storage Inc. (the “Company”) is a fully integrated, self-administered and self-managed REIT, formed as a Maryland corporation on April 30, 2004, to own, operate, manage, acquire, develop and redevelop professionally managed self-storage properties (“stores”) located throughout the United States. The Company was formed to continue the business of Extra Space Storage LLC and its subsidiaries, which had engaged in the self-storage business since 1977. The Company’s interest in its stores is held through its operating partnership, Extra Space Storage LP (the “Operating Partnership”), which was formed on May 5, 2004. The Company’s primary assets are general partner and limited partner interests in the Operating Partnership, which meets the definition of a variable interest entity and is consolidated. This structure is commonly referred to as an umbrella partnership REIT, or UPREIT. </span></div><div style="text-indent:24.75pt"><span><br/></span></div><div style="text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company invests in stores by acquiring wholly-owned stores or by acquiring an equity interest in real estate entities. At September 30, 2024, the Company had direct and indirect equity interests in 2,401 stores. In addition, the Company managed 1,461 stores for third parties, bringing the total number of stores which it owns and/or manages to 3,862. These stores are located in 42 states and Washington, D.C. The Company offers tenant reinsurance at its owned and managed stores that insures the value of goods in the storage units and also offers bridge loan financing to certain of its third-party self-storage owners.</span></div>
CY2024Q3	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	2401	store
CY2024Q3	exr	Number Of Real Estate Properties Franchisees And Others NumberOfRealEstatePropertiesFranchiseesAndOthers	1461	store
CY2024Q3	exr	Number Of Real Estate Properties Owned And Or Managed NumberOfRealEstatePropertiesOwnedAndOrManaged	3862	store
CY2024Q3	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	42	state
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2024Q3	exr	Number Of Operating Stores Held For Sale NumberOfOperatingStoresHeldForSale	17	store
CY2024Q3	exr	Number Of Operating Stores Held For Sale NumberOfOperatingStoresHeldForSale	17	store
CY2024Q3	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	11	store
CY2024Q3	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	159196000	usd
CY2024Q3	exr	Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Loans AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	0	usd
CY2024Q3	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	usd
CY2024Q3	exr	Asset Acquisition Consideration Transferred Investment In Real Estate Joint Ventures AssetAcquisitionConsiderationTransferredInvestmentInRealEstateJointVentures	0	usd
CY2024Q3	us-gaap	Asset Acquisition Consideration Transferred Other Assets AssetAcquisitionConsiderationTransferredOtherAssets	-1431000	usd
CY2024Q3	exr	Real Estate Property Asset Acquisition Consideration Transferred Equity Interest Issued Or Issuable RealEstatePropertyAssetAcquisitionConsiderationTransferredEquityInterestIssuedOrIssuable	0	usd
CY2024Q3	us-gaap	Asset Acquisition Consideration Transferred AssetAcquisitionConsiderationTransferred	160627000	usd
CY2024Q2	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	3	store
CY2024Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	27644000	usd
CY2024Q2	exr	Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Loans AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	0	usd
CY2024Q2	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	usd
CY2024Q2	exr	Asset Acquisition Consideration Transferred Investment In Real Estate Joint Ventures AssetAcquisitionConsiderationTransferredInvestmentInRealEstateJointVentures	0	usd
CY2024Q2	us-gaap	Asset Acquisition Consideration Transferred Other Assets AssetAcquisitionConsiderationTransferredOtherAssets	-97000	usd
CY2024Q2	exr	Real Estate Property Asset Acquisition Consideration Transferred Equity Interest Issued Or Issuable RealEstatePropertyAssetAcquisitionConsiderationTransferredEquityInterestIssuedOrIssuable	0	usd
CY2024Q2	us-gaap	Asset Acquisition Consideration Transferred AssetAcquisitionConsiderationTransferred	27741000	usd
CY2024Q1	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	6	store
CY2024Q1	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	35084000	usd
CY2024Q1	exr	Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Loans AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	0	usd
CY2024Q1	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	usd
CY2024Q1	exr	Asset Acquisition Consideration Transferred Investment In Real Estate Joint Ventures AssetAcquisitionConsiderationTransferredInvestmentInRealEstateJointVentures	0	usd
CY2024Q1	us-gaap	Asset Acquisition Consideration Transferred Other Assets AssetAcquisitionConsiderationTransferredOtherAssets	-171000	usd
CY2024Q1	exr	Real Estate Property Asset Acquisition Consideration Transferred Equity Interest Issued Or Issuable RealEstatePropertyAssetAcquisitionConsiderationTransferredEquityInterestIssuedOrIssuable	0	usd
CY2024Q1	us-gaap	Asset Acquisition Consideration Transferred AssetAcquisitionConsiderationTransferred	35255000	usd
	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	20	store
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	221924000	usd
	exr	Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Loans AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	0	usd
	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	usd
	exr	Asset Acquisition Consideration Transferred Investment In Real Estate Joint Ventures AssetAcquisitionConsiderationTransferredInvestmentInRealEstateJointVentures	0	usd
	us-gaap	Asset Acquisition Consideration Transferred Other Assets AssetAcquisitionConsiderationTransferredOtherAssets	-1699000	usd
	exr	Real Estate Property Asset Acquisition Consideration Transferred Equity Interest Issued Or Issuable RealEstatePropertyAssetAcquisitionConsiderationTransferredEquityInterestIssuedOrIssuable	0	usd
	us-gaap	Asset Acquisition Consideration Transferred AssetAcquisitionConsiderationTransferred	223623000	usd
CY2023Q3	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	3	store
CY2023Q3	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	18578000	usd
CY2023Q3	exr	Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Loans AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	0	usd
CY2023Q3	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	usd
CY2023Q3	exr	Asset Acquisition Consideration Transferred Investment In Real Estate Joint Ventures AssetAcquisitionConsiderationTransferredInvestmentInRealEstateJointVentures	0	usd
CY2023Q3	us-gaap	Asset Acquisition Consideration Transferred Other Assets AssetAcquisitionConsiderationTransferredOtherAssets	-86000	usd
CY2023Q3	exr	Real Estate Property Asset Acquisition Consideration Transferred Equity Interest Issued Or Issuable RealEstatePropertyAssetAcquisitionConsiderationTransferredEquityInterestIssuedOrIssuable	0	usd
CY2023Q3	us-gaap	Asset Acquisition Consideration Transferred AssetAcquisitionConsiderationTransferred	18664000	usd
CY2023Q2	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	3	store
CY2023Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	32888000	usd
CY2023Q2	exr	Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Loans AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	0	usd
CY2023Q2	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	usd
CY2023Q2	exr	Asset Acquisition Consideration Transferred Investment In Real Estate Joint Ventures AssetAcquisitionConsiderationTransferredInvestmentInRealEstateJointVentures	0	usd
CY2023Q2	us-gaap	Asset Acquisition Consideration Transferred Other Assets AssetAcquisitionConsiderationTransferredOtherAssets	-26000	usd
CY2023Q2	exr	Real Estate Property Asset Acquisition Consideration Transferred Equity Interest Issued Or Issuable RealEstatePropertyAssetAcquisitionConsiderationTransferredEquityInterestIssuedOrIssuable	0	usd
CY2023Q2	us-gaap	Asset Acquisition Consideration Transferred AssetAcquisitionConsiderationTransferred	32914000	usd
CY2023Q1	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	1	store
CY2023Q1	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	13111000	usd
CY2023Q1	exr	Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Loans AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	0	usd
CY2023Q1	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	usd
CY2023Q1	exr	Asset Acquisition Consideration Transferred Investment In Real Estate Joint Ventures AssetAcquisitionConsiderationTransferredInvestmentInRealEstateJointVentures	0	usd
CY2023Q1	us-gaap	Asset Acquisition Consideration Transferred Other Assets AssetAcquisitionConsiderationTransferredOtherAssets	-6000	usd
CY2023Q1	exr	Real Estate Property Asset Acquisition Consideration Transferred Equity Interest Issued Or Issuable RealEstatePropertyAssetAcquisitionConsiderationTransferredEquityInterestIssuedOrIssuable	0	usd
CY2023Q1	us-gaap	Asset Acquisition Consideration Transferred AssetAcquisitionConsiderationTransferred	13117000	usd
	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	7	store
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	64577000	usd
	exr	Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Loans AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	0	usd
	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	usd
	exr	Asset Acquisition Consideration Transferred Investment In Real Estate Joint Ventures AssetAcquisitionConsiderationTransferredInvestmentInRealEstateJointVentures	0	usd
	us-gaap	Asset Acquisition Consideration Transferred Other Assets AssetAcquisitionConsiderationTransferredOtherAssets	-118000	usd
	exr	Real Estate Property Asset Acquisition Consideration Transferred Equity Interest Issued Or Issuable RealEstatePropertyAssetAcquisitionConsiderationTransferredEquityInterestIssuedOrIssuable	0	usd
	us-gaap	Asset Acquisition Consideration Transferred AssetAcquisitionConsiderationTransferred	64695000	usd
CY2024Q3	us-gaap	Land Land	4923702000	usd
CY2023Q4	us-gaap	Land Land	4904705000	usd
CY2024Q3	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	22032745000	usd
CY2023Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	21664224000	usd
CY2024Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	143286000	usd
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	143842000	usd
CY2024Q3	exr	Real Estate Investment Property Intangible Tenant Relationships RealEstateInvestmentPropertyIntangibleTenantRelationships	322771000	usd
CY2023Q4	exr	Real Estate Investment Property Intangible Tenant Relationships RealEstateInvestmentPropertyIntangibleTenantRelationships	321019000	usd
CY2024Q3	exr	Real Estate Investment Property Intangible Lease Rights RealEstateInvestmentPropertyIntangibleLeaseRights	27743000	usd
CY2023Q4	exr	Real Estate Investment Property Intangible Lease Rights RealEstateInvestmentPropertyIntangibleLeaseRights	27743000	usd
CY2024Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	27450247000	usd
CY2023Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	27061533000	usd
CY2024Q3	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	3168088000	usd
CY2023Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	2624405000	usd
CY2024Q3	exr	Net Operating Real Estate Assets NetOperatingRealEstateAssets	24282159000	usd
CY2023Q4	exr	Net Operating Real Estate Assets NetOperatingRealEstateAssets	24437128000	usd
CY2024Q3	us-gaap	Development In Process DevelopmentInProcess	103333000	usd
CY2023Q4	us-gaap	Development In Process DevelopmentInProcess	118745000	usd
CY2024Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	24385492000	usd
CY2023Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	24555873000	usd
CY2024Q3	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	131527000	usd
CY2023Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	0	usd
CY2024Q3	exr	Number Of Stores With Amended Leases NumberOfStoresWithAmendedLeases	27	store
CY2024Q3	exr	Number Of Stores With New Triple Net Lease Agreements NumberOfStoresWithNewTripleNetLeaseAgreements	12	store
CY2024Q3	exr	Number Of Stores With Amended Leases NumberOfStoresWithAmendedLeases	27	store
CY2024Q3	exr	Number Of Stores With New Triple Net Lease Agreements NumberOfStoresWithNewTripleNetLeaseAgreements	12	store
CY2024Q3	exr	Number Of Operating Stores Held For Sale NumberOfOperatingStoresHeldForSale	17	store
CY2024Q3	exr	Number Of Operating Stores Held For Sale NumberOfOperatingStoresHeldForSale	17	store
CY2024Q3	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	-8961000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	170811000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	170811000	usd
CY2024Q3	us-gaap	Accounts Receivable Net AccountsReceivableNet	112748000	usd
CY2023Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	134716000	usd
CY2024Q3	exr	Prepaid Expense And Deposits PrepaidExpenseAndDeposits	97521000	usd
CY2023Q4	exr	Prepaid Expense And Deposits PrepaidExpenseAndDeposits	85153000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	39498000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	66332000	usd
CY2024Q3	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	usd
CY2023Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	50000000	usd
CY2024Q3	us-gaap	Derivative Assets DerivativeAssets	11716000	usd
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	26183000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	50065000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	48697000	usd
CY2024Q3	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	8108000	usd
CY2023Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	9787000	usd
CY2024Q3	us-gaap	Restricted Cash RestrictedCash	5394000	usd
CY2023Q4	us-gaap	Restricted Cash RestrictedCash	6021000	usd
CY2024Q3	us-gaap	Other Assets OtherAssets	495861000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	597700000	usd
CY2024Q3	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	-51763000	usd
CY2024Q3	exr	Average Share Price Per Share AverageSharePricePerShare	168.78
CY2023Q3	exr	Average Share Price Per Share AverageSharePricePerShare	134.24
CY2024Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1133472	shares
CY2023Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	10201034	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1330456	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	9177170	shares
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	193210000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	188350000	usd
	us-gaap	Net Income Loss NetIncomeLoss	592194000	usd
	us-gaap	Net Income Loss NetIncomeLoss	587064000	usd
CY2024Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	392000	usd
CY2023Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	304000	usd
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1141000	usd
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	931000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	192818000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	188046000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	591053000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	586133000	usd
CY2024Q3	exr	Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership NetIncomeLossAttributableToNoncontrollingInterestInOperatingPartnership	7800000	usd
CY2023Q3	exr	Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership NetIncomeLossAttributableToNoncontrollingInterestInOperatingPartnership	0	usd
	exr	Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership NetIncomeLossAttributableToNoncontrollingInterestInOperatingPartnership	24136000	usd
	exr	Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership NetIncomeLossAttributableToNoncontrollingInterestInOperatingPartnership	0	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	200618000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	188046000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	615189000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	586133000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	211698436	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	195324444	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	211522578	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	155112071	shares
CY2024Q3	exr	Incremental Common Shares Attributable To Conversion Of Operating Partnership Units IncrementalCommonSharesAttributableToConversionOfOperatingPartnershipUnits	8597656	shares
CY2023Q3	exr	Incremental Common Shares Attributable To Conversion Of Operating Partnership Units IncrementalCommonSharesAttributableToConversionOfOperatingPartnershipUnits	0	shares
	exr	Incremental Common Shares Attributable To Conversion Of Operating Partnership Units IncrementalCommonSharesAttributableToConversionOfOperatingPartnershipUnits	8651915	shares
	exr	Incremental Common Shares Attributable To Conversion Of Operating Partnership Units IncrementalCommonSharesAttributableToConversionOfOperatingPartnershipUnits	0	shares
CY2024Q3	exr	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	2778	shares
CY2023Q3	exr	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	3576	shares
	exr	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	3199	shares
	exr	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	4078	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	220298870	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	195328020	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	220177692	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155116149	shares
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.91
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.96
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.79
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.78
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.91
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.79
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.78
CY2024Q3	exr	Equity Method Investment Number Of Stores EquityMethodInvestmentNumberOfStores	460	property
CY2024Q3	exr	Investment In Unconsolidated Real Estate Entities Net Of Distributions InvestmentInUnconsolidatedRealEstateEntitiesNetOfDistributions	986040000	usd
CY2023Q4	exr	Investment In Unconsolidated Real Estate Entities Net Of Distributions InvestmentInUnconsolidatedRealEstateEntitiesNetOfDistributions	1000548000	usd
CY2024Q3	us-gaap	Dividends Receivable DividendsReceivable	6375000	usd
CY2023Q4	us-gaap	Dividends Receivable DividendsReceivable	10042000	usd
CY2024Q3	exr	Debt Securities Held To Maturity And Financing Receivable After Allowance For Credit Loss And Interest Receivable DebtSecuritiesHeldToMaturityAndFinancingReceivableAfterAllowanceForCreditLossAndInterestReceivable	1338619000	usd
CY2023Q4	exr	Debt Securities Held To Maturity And Financing Receivable After Allowance For Credit Loss And Interest Receivable DebtSecuritiesHeldToMaturityAndFinancingReceivableAfterAllowanceForCreditLossAndInterestReceivable	904769000	usd
CY2020Q4	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	300000000	usd
CY2020Q4	exr	Debt Securities Held To Maturity Term DebtSecuritiesHeldToMaturityTerm	P6Y
CY2020Q4	exr	Debt Securities Held To Maturity Extension Option DebtSecuritiesHeldToMaturityExtensionOption	2	extension_option
CY2020Q4	exr	Debt Securities Held To Maturity Extension Term DebtSecuritiesHeldToMaturityExtensionTerm	P1Y
CY2020Q4	exr	Debt Securities Held To Maturity Period After Which Preferred Dividends Increase Annually DebtSecuritiesHeldToMaturityPeriodAfterWhichPreferredDividendsIncreaseAnnually	P6Y
CY2024Q3	exr	Financing Receivable Percent Held As Mortgage Receivables FinancingReceivablePercentHeldAsMortgageReceivables	0.71	rate
CY2024Q3	exr	Financing Receivable Extension Option FinancingReceivableExtensionOption	2	extension_option
	exr	Financing Receivable Extension Term FinancingReceivableExtensionTerm	P1Y
CY2024Q3	exr	Number Of Debt Securities Past Due Or Nonaccrual Status NumberOfDebtSecuritiesPastDueOrNonaccrualStatus	1	debt_security
CY2024Q3	exr	Debt Instrument Fixed Rate Debt To Total Debt Rate DebtInstrumentFixedRateDebtToTotalDebtRate	0.783
CY2024Q3	us-gaap	Long Term Debt Percentage Bearing Fixed Interest Rate LongTermDebtPercentageBearingFixedInterestRate	0.040
CY2024Q3	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.060
CY2024Q3	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.045
CY2024Q3	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	7681000	usd
CY2024Q3	us-gaap	Derivative Number Of Instruments Held DerivativeNumberOfInstrumentsHeld	14	derivative
CY2024Q3	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	1382568000	usd
CY2024Q3	exr	Derivative With Contingent Features Fair Value Of Asset Liability Net DerivativeWithContingentFeaturesFairValueOfAssetLiabilityNet	-5423000	usd
CY2024Q3	exr	Derivative Termination Value DerivativeTerminationValue	5423000	usd
CY2023Q4	srt	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	500000000	usd
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2023	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2024Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	500000000	usd
CY2023Q3	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	76217359	shares
CY2023Q3	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	148.96
CY2023Q3	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	11353338000	usd
CY2024Q3	us-gaap	Minority Interest In Preferred Unit Holders MinorityInterestInPreferredUnitHolders	191306000	usd
CY2023Q4	us-gaap	Minority Interest In Preferred Unit Holders MinorityInterestInPreferredUnitHolders	222360000	usd
	exr	Notes Receivable Stated Interest Rate NotesReceivableStatedInterestRate	0.050
	exr	Average Closing Market Price Measurement Period AverageClosingMarketPriceMeasurementPeriod	P10D
	exr	Average Closing Market Price Measurement Period AverageClosingMarketPriceMeasurementPeriod	P10D
CY2024Q3	exr	Common Stock Average Closing Market Price CommonStockAverageClosingMarketPrice	180.16
CY2024Q3	us-gaap	Preferred Units Outstanding PreferredUnitsOutstanding	8577570	shares
CY2024Q3	exr	Operating Partnership Units Redemption Amount OperatingPartnershipUnitsRedemptionAmount	1545335000	usd
	exr	Noncontrolling Interest Operating Partnership Units Redeemed For Common Stock NoncontrollingInterestOperatingPartnershipUnitsRedeemedForCommonStock	308024	shares
	exr	Noncontrolling Interest Operating Partnership Units Redeemed For Common Stock NoncontrollingInterestOperatingPartnershipUnitsRedeemedForCommonStock	0	shares
CY2023Q3	exr	Noncontrolling Interest Operating Partnership Units Issued With Acquisition NoncontrollingInterestOperatingPartnershipUnitsIssuedWithAcquisition	0	shares
CY2023Q3	exr	Noncontrolling Interest Operating Partnership Units Issued With Acquisition NoncontrollingInterestOperatingPartnershipUnitsIssuedWithAcquisition	1674748	shares
CY2023Q3	exr	Noncontrolling Interest Operating Partnership Units Issued With Acquisition Value NoncontrollingInterestOperatingPartnershipUnitsIssuedWithAcquisitionValue	0	usd
CY2023Q3	exr	Noncontrolling Interest Operating Partnership Units Issued With Acquisition Value NoncontrollingInterestOperatingPartnershipUnitsIssuedWithAcquisitionValue	249470000	usd
CY2024Q3	exr	Real Estate Consolidated Joint Ventures Number RealEstateConsolidatedJointVenturesNumber	9	joint_venture
CY2024Q3	exr	Total Number Of Stores In Consolidated Joint Ventures TotalNumberOfStoresInConsolidatedJointVentures	13	store
CY2024Q3	exr	Number Of Joint Ventures Operating NumberOfJointVenturesOperating	7	joint_venture
CY2024Q3	exr	Number Of Joint Ventures With Property Under Development NumberOfJointVenturesWithPropertyUnderDevelopment	6	store
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2024Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	29882000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	28019000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	89888000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	71609000	usd
CY2024Q3	exr	Asset Acquisition Acquisition Related Costs AssetAcquisitionAcquisitionRelatedCosts	0	usd
CY2023Q3	exr	Asset Acquisition Acquisition Related Costs AssetAcquisitionAcquisitionRelatedCosts	54174000	usd
	exr	Asset Acquisition Acquisition Related Costs AssetAcquisitionAcquisitionRelatedCosts	0	usd
	exr	Asset Acquisition Acquisition Related Costs AssetAcquisitionAcquisitionRelatedCosts	54174000	usd
CY2024Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	39750000	usd
CY2023Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	37406000	usd
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	123373000	usd
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	107011000	usd
CY2024Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	195046000	usd
CY2023Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	152338000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	586821000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	309914000	usd
CY2024Q3	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	-8961000	usd
CY2023Q3	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	0	usd
	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	-63620000	usd
	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	0	usd
CY2024Q3	exr	Interest Expense Excluding Amortization Of Debt Discount Premium InterestExpenseExcludingAmortizationOfDebtDiscountPremium	142855000	usd
CY2023Q3	exr	Interest Expense Excluding Amortization Of Debt Discount Premium InterestExpenseExcludingAmortizationOfDebtDiscountPremium	122899000	usd
	exr	Interest Expense Excluding Amortization Of Debt Discount Premium InterestExpenseExcludingAmortizationOfDebtDiscountPremium	412875000	usd
	exr	Interest Expense Excluding Amortization Of Debt Discount Premium InterestExpenseExcludingAmortizationOfDebtDiscountPremium	289370000	usd
CY2024Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	11005000	usd
CY2023Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	8228000	usd
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	32563000	usd
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	8228000	usd
CY2024Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	34947000	usd
CY2023Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	22092000	usd
	us-gaap	Investment Income Interest InvestmentIncomeInterest	89746000	usd
	us-gaap	Investment Income Interest InvestmentIncomeInterest	62607000	usd
CY2024Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	16246000	usd
CY2023Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	15043000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	48508000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	38602000	usd
CY2024Q3	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	13730000	usd
CY2023Q3	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	0	usd
	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	13730000	usd
	exr	Equity Method Investments Gain Loss On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest EquityMethodInvestmentsGainLossOnSaleOfRealEstateAssetsAndPurchaseOfJointVenturePartnerInterest	0	usd
CY2024Q3	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	-51763000	usd
CY2023Q3	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	0	usd
	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	-51763000	usd
	exr	Gain Loss On Impairment Of Intangible Asset Indefinite Lived GainLossOnImpairmentOfIntangibleAssetIndefiniteLived	0	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10857000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6944000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27443000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17238000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	202945000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	198856000	usd
	us-gaap	Profit Loss ProfitLoss	622431000	usd
	us-gaap	Profit Loss ProfitLoss	623046000	usd
CY2024Q3	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

Name	View Source	Status
0001628280-24-045038-index-headers.html	Edgar Link	pending
0001628280-24-045038-index.html	Edgar Link	pending
0001628280-24-045038.txt	Edgar Link	pending
0001628280-24-045038-xbrl.zip	Edgar Link	pending
exr-20240930.htm	Edgar Link	pending
exr-20240930.xsd	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
q3202410qex221.htm	Edgar Link	pending
q3202410qex311.htm	Edgar Link	pending
q3202410qex312.htm	Edgar Link	pending
q3202410qex321.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
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exr-20240930_cal.xml	Edgar Link	unprocessable
exr-20240930_def.xml	Edgar Link	unprocessable
exr-20240930_lab.xml	Edgar Link	unprocessable
exr-20240930_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
exr-20240930_htm.xml	Edgar Link	completed
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$EXR
Extra Space Storage Inc. Stock $exr

2024 Q4 Form 10-Q Financial Statement

#000162828024045038 Filed on November 04, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXR Extra Space Storage Inc. Stock $exr

2024 Q4 Form 10-Q Financial Statement

#000162828024045038 Filed on November 04, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXR
Extra Space Storage Inc. Stock $exr