$EXR
Extra Space Storage Inc. Stock $exr

$exr Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000162828020015840 Filed on November 06, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q3
Revenue	$353.5M	$343.0M	$337.5M
YoY Change	5.27%	1.64%	9.95%
Cost Of Revenue	$94.70M	$92.32M	$88.65M
YoY Change	-0.84%	4.14%	20.37%
Gross Profit	$258.8M	$250.7M	$248.9M
YoY Change	7.7%	0.74%	6.67%
Gross Profit Margin	73.21%	73.09%	73.73%
Selling, General & Admin	$24.40M	$23.90M	$22.50M
YoY Change	16.75%	6.22%	14.21%
% of Gross Profit	9.43%	9.53%	9.04%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$56.70M	$56.41M	$56.05M
YoY Change	3.47%	0.64%	7.21%
% of Gross Profit	21.91%	22.5%	22.52%
Operating Expenses	$81.10M	$80.30M	$78.60M
YoY Change	7.13%	2.16%	9.17%
Operating Profit	$177.7M	$163.2M	$162.6M
YoY Change	7.93%	0.35%	5.89%
Interest Expense	-$25.60M	$42.21M	$46.91M
YoY Change	-38.46%	-10.01%	2.14%
% of Operating Profit	-14.41%	25.86%	28.84%
Other Income/Expense, Net
YoY Change
Pretax Income	$170.1M	$122.9M	$117.3M
YoY Change	38.29%	4.74%	-15.4%
Income Tax	$3.800M	$4.657M	$4.052M
% Of Pretax Income	2.23%	3.79%	3.45%
Net Earnings	$156.1M	$114.6M	$108.1M
YoY Change	39.02%	6.06%	-17.12%
Net Earnings / Revenue	44.16%	33.42%	32.03%
Basic Earnings Per Share		$0.89	$0.84
Diluted Earnings Per Share	$1.192M	$0.88	$0.83
COMMON SHARES
Basic Shares Outstanding	129.2M shares	128.9M shares	128.8M shares
Diluted Shares Outstanding		129.9M shares	137.3M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$109.1M	$74.80M	$62.30M
YoY Change	66.06%	20.06%	37.22%
Cash & Equivalents	$109.1M	$74.80M	$62.28M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$109.1M	$74.80M	$62.30M
YoY Change	66.06%	20.06%	37.22%
LONG-TERM ASSETS
Property, Plant & Equipment	$8.146B	$8.012B	$7.935B
YoY Change	2.32%	0.97%	6.86%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$991.3M	$347.8M	$175.4M
YoY Change	193.2%	98.29%	53.19%
Other Assets	$18.90M	$5.800M	$4.400M
YoY Change	278.0%	31.82%	-79.25%
Total Long-Term Assets	$9.287B	$8.686B	$8.256B
YoY Change	9.69%	5.21%	6.49%
TOTAL ASSETS
Total Short-Term Assets	$109.1M	$74.80M	$62.30M
Total Long-Term Assets	$9.287B	$8.686B	$8.256B
Total Assets	$9.396B	$8.761B	$8.318B
YoY Change	10.12%	5.32%	6.66%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$130.0M	$153.8M	$122.7M
YoY Change	16.7%	25.35%	-3.0%
Accrued Expenses	$263.5M	$267.1M	$279.0M
YoY Change	-4.11%	-4.27%
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	$393.5M	$420.9M	$401.7M
YoY Change	1.89%	4.78%	217.55%
LONG-TERM LIABILITIES
Long-Term Debt	$5.746B	$5.280B	$4.812B
YoY Change	13.87%	9.73%	1.06%
Other Long-Term Liabilities	$319.9M	$292.1M	$196.7M
YoY Change	79.72%	48.5%	39.9%
Total Long-Term Liabilities	$6.066B	$5.572B	$5.009B
YoY Change	16.11%	11.25%	2.17%
TOTAL LIABILITIES
Total Short-Term Liabilities	$393.5M	$420.9M	$401.7M
Total Long-Term Liabilities	$6.066B	$5.572B	$5.009B
Total Liabilities	$6.460B	$5.993B	$5.410B
YoY Change	15.13%	10.77%	7.59%
SHAREHOLDERS EQUITY
Retained Earnings	-$354.9M	-$392.9M	-$296.8M
YoY Change	17.89%	32.4%	16.34%
Common Stock	$3.002B	$2.891B	$2.863B
YoY Change	4.59%	0.98%	10.86%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.548B	$2.389B	$2.523B
YoY Change
Total Liabilities & Shareholders Equity	$9.396B	$8.761B	$8.318B
YoY Change	10.12%	5.32%	6.66%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q3
OPERATING ACTIVITIES
Net Income	$156.1M	$114.6M	$108.1M
YoY Change	39.02%	6.06%	-17.12%
Depreciation, Depletion And Amortization	$56.70M	$56.41M	$56.05M
YoY Change	3.47%	0.64%	7.21%
Cash From Operating Activities	$187.9M	$191.2M	$181.1M
YoY Change	15.13%	5.58%	-4.33%
INVESTING ACTIVITIES
Capital Expenditures	-$193.7M	-$122.8M	-$54.80M
YoY Change	129.23%	124.09%	-48.83%
Acquisitions
YoY Change
Other Investing Activities	-$397.8M	-$129.2M	$138.8M
YoY Change	120.02%	-193.08%	622.92%
Cash From Investing Activities	-$591.6M	-$251.9M	$84.00M
YoY Change	123.08%	-399.88%	-195.56%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	451.1M	79.60M	-254.1M
YoY Change	325.16%	-131.33%	144.56%
NET CHANGE
Cash From Operating Activities	187.9M	191.2M	181.1M
Cash From Investing Activities	-591.6M	-251.9M	84.00M
Cash From Financing Activities	451.1M	79.60M	-254.1M
Net Change In Cash	47.40M	18.90M	11.00M
YoY Change	1056.1%	71.82%	-540.0%
FREE CASH FLOW
Cash From Operating Activities	$187.9M	$191.2M	$181.1M
Capital Expenditures	-$193.7M	-$122.8M	-$54.80M
Free Cash Flow	$381.6M	$314.0M	$235.9M
YoY Change	54.06%	33.11%	-20.41%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	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	2020-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-32269
	dei	Entity Registrant Name EntityRegistrantName	EXTRA SPACE STORAGE INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	20-1076777
	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	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
	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	us-gaap	Net Income Loss NetIncomeLoss	108087000	USD
	us-gaap	Net Income Loss NetIncomeLoss	325723000	USD
	us-gaap	Net Income Loss NetIncomeLoss	307685000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.89
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.52
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.40
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.88
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.50
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.37
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	128862341	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	128776549	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	129044954	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	127830272	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	129871096	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	137318475	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	130066121	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136164299	shares
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.90
CY2019Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.90
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.70
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.66
CY2020Q3	us-gaap	Profit Loss ProfitLoss	123854000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	115995000	USD
	us-gaap	Profit Loss ProfitLoss	351273000	USD
	us-gaap	Profit Loss ProfitLoss	330844000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	11181000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-16762000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-83791000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-82057000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	135035000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	99233000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	267482000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	248787000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	9854000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	7109000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	21501000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	19191000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	125181000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	92124000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	245981000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	229596000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2785422000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1757000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2954000	USD
CY2019Q1	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	23447000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	102160000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-23993000	USD
CY2019Q1	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	8412000	USD
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.86
CY2019Q1	us-gaap	Dividends Common Stock DividendsCommonStock	109523000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2773812000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2773812000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	468000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	2000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	98796000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3998000	USD
CY2019Q2	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	4575000	USD
CY2019Q2	exr	Noncontrolling Interest Increase From Contribution NoncontrollingInterestIncreaseFromContribution	50000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	112689000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-41302000	USD
CY2019Q2	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	8705000	USD
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.90
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	115572000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2828811000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	605000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	100056000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3035000	USD
CY2019Q3	exr	Noncontrolling Interest Repayment Of Receivable For Preferred Operating Units Pledged As Collateral On Loan NoncontrollingInterestRepaymentOfReceivableForPreferredOperatingUnitsPledgedAsCollateralOnLoan	1211000	USD
CY2019Q3	exr	Noncontrolling Interest Increase From Contribution NoncontrollingInterestIncreaseFromContribution	96000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	115995000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-16762000	USD
CY2019Q3	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	8618000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.90
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	116440000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2907989000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2921694000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	944000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	2980000	USD
CY2020Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	52204000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	116162000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-89244000	USD
CY2020Q1	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	8505000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.90
CY2020Q1	us-gaap	Dividends Common Stock DividendsCommonStock	117197000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2774630000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	726000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	4884000	USD
CY2020Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	15615000	USD
CY2020Q2	exr	Noncontrolling Interest Increase From Contribution NoncontrollingInterestIncreaseFromContribution	68000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	111256000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5727000	USD
CY2020Q2	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	8386000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.90
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	116318000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2745518000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2745518000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1200000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	3452000	USD
CY2020Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	54000	USD
CY2020Q3	exr	Noncontrolling Interest Repayment Of Receivable For Preferred Operating Units Pledged As Collateral On Loan NoncontrollingInterestRepaymentOfReceivableForPreferredOperatingUnitsPledgedAsCollateralOnLoan	8226000	USD
CY2020Q3	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-1000000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	123854000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11181000	USD
CY2020Q3	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	8370000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.90
CY2020Q3	us-gaap	Dividends Common Stock DividendsCommonStock	116185000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2767822000	USD
	us-gaap	Profit Loss ProfitLoss	351273000	USD
	us-gaap	Profit Loss ProfitLoss	330844000	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	167705000	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	165116000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	7356000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	8912000	USD
	exr	Amortization Of Debt Discount Premium Equity Component Of Senior Notes AmortizationOfDebtDiscountPremiumEquityComponentOfSeniorNotes	3675000	USD
	exr	Amortization Of Debt Discount Premium Equity Component Of Senior Notes AmortizationOfDebtDiscountPremiumEquityComponentOfSeniorNotes	3533000	USD
	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	799000	USD
	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	0	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	11316000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	9987000	USD
	exr	Gains Losses On Real Estate Transactions Net Of Impairment Of Real Estate GainsLossesOnRealEstateTransactionsNetOfImpairmentOfRealEstate	0	USD
	exr	Gains Losses On Real Estate Transactions Net Of Impairment Of Real Estate GainsLossesOnRealEstateTransactionsNetOfImpairmentOfRealEstate	1205000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-5097000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-4752000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	17977000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	11153000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	41780000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	29310000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	12243000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	4370000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	583267000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	544466000	USD
	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	151244000	USD
	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	287114000	USD
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	46112000	USD
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	34413000	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	234000	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	11254000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	13937000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	33661000	USD
	exr	Return Of Investment Real Estate Ventures ReturnOfInvestmentRealEstateVentures	371000	USD
	exr	Return Of Investment Real Estate Ventures ReturnOfInvestmentRealEstateVentures	3982000	USD
	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	149750000	USD
	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	162677000	USD
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	151211000	USD
	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	3407000	USD
	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	4959000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-363845000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-356377000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	198852000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	1419000000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	1508000000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	1192750000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	1503686000	USD
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	0	USD
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	30928000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3161000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2008000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2870000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2830000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	67873000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	exr	Cash Portion Of Redemption Of Preferred Operating Partnership Units CashPortionOfRedemptionOfPreferredOperatingPartnershipUnits	1000000	USD
	exr	Cash Portion Of Redemption Of Preferred Operating Partnership Units CashPortionOfRedemptionOfPreferredOperatingPartnershipUnits	0	USD
	exr	Proceeds From Collection Of Notes Receivable For Stock ProceedsFromCollectionOfNotesReceivableForStock	8226000	USD
	exr	Proceeds From Collection Of Notes Receivable For Stock ProceedsFromCollectionOfNotesReceivableForStock	0	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	68000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	146000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	349700000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	341535000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	25261000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	25735000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-209581000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-194064000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	9841000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-5975000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	70733000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	72690000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	80574000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	66715000	USD
	us-gaap	Interest Paid Net InterestPaidNet	119977000	USD
	us-gaap	Interest Paid Net InterestPaidNet	136563000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5181000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6197000	USD
	exr	Noncontrolling Interest Decrease From Redemptions Of Operating Partnership Units NoncontrollingInterestDecreaseFromRedemptionsOfOperatingPartnershipUnits	4005000	USD
	exr	Noncontrolling Interest Decrease From Redemptions Of Operating Partnership Units NoncontrollingInterestDecreaseFromRedemptionsOfOperatingPartnershipUnits	9258000	USD
	exr	Redemption Of Operating Partnership Units Held By Noncontrolling Interest Including Additional Paid In Capital RedemptionOfOperatingPartnershipUnitsHeldByNoncontrollingInterestIncludingAdditionalPaidInCapital	4005000	USD
	exr	Redemption Of Operating Partnership Units Held By Noncontrolling Interest Including Additional Paid In Capital RedemptionOfOperatingPartnershipUnitsHeldByNoncontrollingInterestIncludingAdditionalPaidInCapital	9258000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6799000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	277430000	USD
	exr	Establishment Of Operating Lease Liability EstablishmentOfOperatingLeaseLiability	6799000	USD
	exr	Establishment Of Operating Lease Liability EstablishmentOfOperatingLeaseLiability	286787000	USD
	exr	Establishment Of Operating Lease Right Of Use Assets And Lease Liabilities Increase Decrease In Accounts Payable And Accrued Expenses EstablishmentOfOperatingLeaseRightOfUseAssetsAndLeaseLiabilitiesIncreaseDecreaseInAccountsPayableAndAccruedExpenses	0	USD
	exr	Establishment Of Operating Lease Right Of Use Assets And Lease Liabilities Increase Decrease In Accounts Payable And Accrued Expenses EstablishmentOfOperatingLeaseRightOfUseAssetsAndLeaseLiabilitiesIncreaseDecreaseInAccountsPayableAndAccruedExpenses	9357000	USD
	exr	Noncash Or Part Noncash Acquisition Net Real Estate Assets Acquired NoncashOrPartNoncashAcquisitionNetRealEstateAssetsAcquired	-13833000	USD
	exr	Noncash Or Part Noncash Acquisition Net Real Estate Assets Acquired NoncashOrPartNoncashAcquisitionNetRealEstateAssetsAcquired	19937000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	17157000	USD
	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	0	USD
	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	2780000	USD
	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	13833000	USD
	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
	exr	Real Estate Additions Portion Not Yet Paid RealEstateAdditionsPortionNotYetPaid	676000	USD
	exr	Real Estate Additions Portion Not Yet Paid RealEstateAdditionsPortionNotYetPaid	1292000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	676000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1292000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	2724000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	USD
	exr	Redemption Of Operating Partnership Units For Common Stock Including Additional Paid In Capital RedemptionOfOperatingPartnershipUnitsForCommonStockIncludingAdditionalPaidInCapital	2724000	USD
	exr	Redemption Of Operating Partnership Units For Common Stock Including Additional Paid In Capital RedemptionOfOperatingPartnershipUnitsForCommonStockIncludingAdditionalPaidInCapital	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	8605000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
	exr	Establishment Of Finance Lease Liability EstablishmentOfFinanceLeaseLiability	8605000	USD
	exr	Establishment Of Finance Lease Liability EstablishmentOfFinanceLeaseLiability	0	USD
	exr	Conversion Of Preferred Operating Units To Common Units ConversionOfPreferredOperatingUnitsToCommonUnits	0	USD
	exr	Conversion Of Preferred Operating Units To Common Units ConversionOfPreferredOperatingUnitsToCommonUnits	4374000	USD
	exr	Conversion Of Preferred Operating Units To Common Units ConversionOfPreferredOperatingUnitsToCommonUnits	0	USD
	exr	Conversion Of Preferred Operating Units To Common Units ConversionOfPreferredOperatingUnitsToCommonUnits	4374000	USD
	us-gaap	Nature Of Operations NatureOfOperations	ORGANIZATION<div style="margin-top:6pt"><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 real estate investment trust (“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. This structure is commonly referred to as an umbrella partnership REIT, or UPREIT. </span></div><div><span><br/></span></div><div><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, 2020, the Company had direct and indirect equity interests in 1,188 stores. In addition, the Company managed 718 stores for third parties, bringing the total number of stores which it owns and/or manages to 1,906. These stores are located in 40 states, Washington, D.C. and Puerto Rico. The Company also offers tenant reinsurance at its owned and managed stores that insures the value of goods in the storage units.</span></div>
CY2020Q3	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	1188	store
CY2020Q3	exr	Number Of Real Estate Properties Franchisees And Others NumberOfRealEstatePropertiesFranchiseesAndOthers	718	store
CY2020Q3	exr	Number Of Real Estate Properties Owned And Or Managed NumberOfRealEstatePropertiesOwnedAndOrManaged	1906	store
CY2020Q3	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	40	state
CY2020Q3	exr	Number Of Operating Stores Held For Sale NumberOfOperatingStoresHeldForSale	16	store
CY2020Q3	exr	Average Share Price Per Share AverageSharePricePerShare	103.36
CY2019Q3	exr	Average Share Price Per Share AverageSharePricePerShare	115.63
	exr	Average Share Price Per Share AverageSharePricePerShare	100.14
	exr	Average Share Price Per Share AverageSharePricePerShare	105.74
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8227533	shares
CY2019Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1400920	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8349818	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1470693	shares
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	114633000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	108087000	USD
	us-gaap	Net Income Loss NetIncomeLoss	325723000	USD
	us-gaap	Net Income Loss NetIncomeLoss	307685000	USD
CY2020Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	177000	USD
CY2019Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	165000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	513000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	508000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	114456000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	107922000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	325210000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	307177000	USD
CY2020Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	-177000	USD
CY2019Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	-165000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	-513000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	USD
CY2020Q3	exr	Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership NetIncomeLossAttributableToNoncontrollingInterestInOperatingPartnership	0	USD
CY2019Q3	exr	Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership NetIncomeLossAttributableToNoncontrollingInterestInOperatingPartnership	6100000	USD
	exr	Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership NetIncomeLossAttributableToNoncontrollingInterestInOperatingPartnership	17539000	USD
CY2020Q3	exr	Income Loss Attributable To Noncontrolling Interest Fixed Component IncomeLossAttributableToNoncontrollingInterestFixedComponent	0	USD
	exr	Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership NetIncomeLossAttributableToNoncontrollingInterestInOperatingPartnership	0	USD
CY2019Q3	exr	Income Loss Attributable To Noncontrolling Interest Fixed Component IncomeLossAttributableToNoncontrollingInterestFixedComponent	572000	USD
	exr	Income Loss Attributable To Noncontrolling Interest Fixed Component IncomeLossAttributableToNoncontrollingInterestFixedComponent	0	USD
	exr	Income Loss Attributable To Noncontrolling Interest Fixed Component IncomeLossAttributableToNoncontrollingInterestFixedComponent	1716000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	114633000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	113615000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	325723000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	323000000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	128862341	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	128776549	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	129044954	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	127830272	shares
CY2020Q3	exr	Incremental Common Shares Attributable To Conversion Of Operating Partnership Units IncrementalCommonSharesAttributableToConversionOfOperatingPartnershipUnits	0	shares
CY2019Q3	exr	Incremental Common Shares Attributable To Conversion Of Operating Partnership Units IncrementalCommonSharesAttributableToConversionOfOperatingPartnershipUnits	6050028	shares
	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	6032656	shares
CY2020Q3	exr	Incremental Common Shares Attributable To Exchangeable Preferred Operating Partnership Units IncrementalCommonSharesAttributableToExchangeablePreferredOperatingPartnershipUnits	0	shares
CY2019Q3	exr	Incremental Common Shares Attributable To Exchangeable Preferred Operating Partnership Units IncrementalCommonSharesAttributableToExchangeablePreferredOperatingPartnershipUnits	875480	shares
	exr	Incremental Common Shares Attributable To Exchangeable Preferred Operating Partnership Units IncrementalCommonSharesAttributableToExchangeablePreferredOperatingPartnershipUnits	0	shares
	exr	Incremental Common Shares Attributable To Exchangeable Preferred Operating Partnership Units IncrementalCommonSharesAttributableToExchangeablePreferredOperatingPartnershipUnits	875480	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	214909	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	209963	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	212311	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	0	shares
CY2020Q3	exr	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	793846	shares
CY2019Q3	exr	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	1406455	shares
	exr	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	808856	shares
	exr	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	1425891	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	129871096	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	137318475	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	130066121	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136164299	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.89
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.52
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.40
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.88
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.50
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.37
CY2020Q3	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	8	store
CY2020Q3	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	101731000	USD
CY2020Q3	exr	Payments To Acquire Assets Gross PaymentsToAcquireAssetsGross	86996000	USD
CY2020Q3	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2020Q3	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	13833000	USD
CY2020Q3	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	0	USD
CY2020Q3	exr	Real Estate Property Acquisition Increase Assets Acquired And Liabilities Assumed Net RealEstatePropertyAcquisitionIncreaseAssetsAcquiredAndLiabilitiesAssumedNet	-902000	USD
CY2020Q3	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	101731000	USD
CY2020Q2	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	0	store
CY2020Q2	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	0	USD
CY2020Q2	exr	Payments To Acquire Assets Gross PaymentsToAcquireAssetsGross	0	USD
CY2020Q2	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2020Q2	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	USD
CY2020Q2	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	0	USD
CY2020Q2	exr	Real Estate Property Acquisition Increase Assets Acquired And Liabilities Assumed Net RealEstatePropertyAcquisitionIncreaseAssetsAcquiredAndLiabilitiesAssumedNet	0	USD
CY2020Q2	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	0	USD
CY2020Q1	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	2	store
CY2020Q1	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	19399000	USD
CY2020Q1	exr	Payments To Acquire Assets Gross PaymentsToAcquireAssetsGross	19354000	USD
CY2020Q1	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2020Q1	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	USD
CY2020Q1	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	0	USD
CY2020Q1	exr	Real Estate Property Acquisition Increase Assets Acquired And Liabilities Assumed Net RealEstatePropertyAcquisitionIncreaseAssetsAcquiredAndLiabilitiesAssumedNet	-45000	USD
CY2020Q1	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	19399000	USD
	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	10	store
	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	121130000	USD
	exr	Payments To Acquire Assets Gross PaymentsToAcquireAssetsGross	106350000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	13833000	USD
	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	0	USD
	exr	Real Estate Property Acquisition Increase Assets Acquired And Liabilities Assumed Net RealEstatePropertyAcquisitionIncreaseAssetsAcquiredAndLiabilitiesAssumedNet	-947000	USD
	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	121130000	USD
CY2019Q3	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	1	store
CY2019Q3	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	16937000	USD
CY2019Q3	exr	Payments To Acquire Assets Gross PaymentsToAcquireAssetsGross	16941000	USD
CY2019Q3	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2019Q3	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	USD
CY2019Q3	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	0	USD
CY2019Q3	exr	Real Estate Property Acquisition Increase Assets Acquired And Liabilities Assumed Net RealEstatePropertyAcquisitionIncreaseAssetsAcquiredAndLiabilitiesAssumedNet	4000	USD
CY2019Q3	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	16937000	USD
CY2019Q2	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	1	store
CY2019Q2	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	8424000	USD
CY2019Q2	exr	Payments To Acquire Assets Gross PaymentsToAcquireAssetsGross	8424000	USD
CY2019Q2	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2019Q2	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	USD
CY2019Q2	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	0	USD
	exr	Variable Interest Entity Interest In Consolidated Joint Ventures Number VariableInterestEntityInterestInConsolidatedJointVenturesNumber	0	joint_venture
CY2019Q2	exr	Real Estate Property Acquisition Increase Assets Acquired And Liabilities Assumed Net RealEstatePropertyAcquisitionIncreaseAssetsAcquiredAndLiabilitiesAssumedNet	0	USD
CY2019Q2	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	8424000	USD
CY2019Q1	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	14	store
CY2019Q1	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	223740000	USD
CY2019Q1	exr	Payments To Acquire Assets Gross PaymentsToAcquireAssetsGross	202890000	USD
CY2019Q1	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	17157000	USD
CY2019Q1	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	USD
CY2019Q1	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	2780000	USD
CY2019Q1	exr	Real Estate Property Acquisition Increase Assets Acquired And Liabilities Assumed Net RealEstatePropertyAcquisitionIncreaseAssetsAcquiredAndLiabilitiesAssumedNet	-913000	USD
CY2019Q1	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	223740000	USD
	exr	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	16	store
	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	249101000	USD
	exr	Payments To Acquire Assets Gross PaymentsToAcquireAssetsGross	228255000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	17157000	USD
	exr	Noncash Or Part Noncash Acquisition Finance Lease Liability NoncashOrPartNoncashAcquisitionFinanceLeaseLiability	0	USD
	exr	Investments In Real Estate Joint Ventures Net Of Distributions Received InvestmentsInRealEstateJointVenturesNetOfDistributionsReceived	2780000	USD
CY2019Q1	exr	Number Of Real Estate Properties Acquired Previous Noncontrolling Interest Held NumberOfRealEstatePropertiesAcquiredPreviousNoncontrollingInterestHeld	12	store
	exr	Real Estate Property Acquisition Increase Assets Acquired And Liabilities Assumed Net RealEstatePropertyAcquisitionIncreaseAssetsAcquiredAndLiabilitiesAssumedNet	-909000	USD
	exr	Real Estate Property Asset Acquisition Consideration Transferred RealEstatePropertyAssetAcquisitionConsiderationTransferred	249101000	USD
CY2020Q3	exr	Number Of Real Estate Properties Acquired Subject To Finance Lease NumberOfRealEstatePropertiesAcquiredSubjectToFinanceLease	2	store
	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	13937000	USD
	exr	Number Of Real Estate Properties Acquired By Joint Ventures NumberOfRealEstatePropertiesAcquiredByJointVentures	1	store
	exr	Number Of Stores Acquired At Issuance Of Certificate Of Occupancy NumberOfStoresAcquiredAtIssuanceOfCertificateOfOccupancy	5	store
CY2020Q3	exr	Equity Method Investment Number Of Properties EquityMethodInvestmentNumberOfProperties	247	property
CY2020Q3	exr	Investment In Unconsolidated Real Estate Entities Net Of Distributions InvestmentInUnconsolidatedRealEstateEntitiesNetOfDistributions	301259000	USD
CY2019Q4	exr	Investment In Unconsolidated Real Estate Entities Net Of Distributions InvestmentInUnconsolidatedRealEstateEntitiesNetOfDistributions	292790000	USD
CY2017Q4	exr	Variable Interest Entity Interest In Trust Number VariableInterestEntityInterestInTrustNumber	3	subsidiary
CY2020Q3	exr	Variable Interest Entity Interest In Consolidated Joint Ventures Number VariableInterestEntityInterestInConsolidatedJointVenturesNumber	0	joint_venture
CY2020Q3	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	34541000	USD
CY2020Q3	us-gaap	Derivative Number Of Instruments Held DerivativeNumberOfInstrumentsHeld	23	derivative
CY2020Q3	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	2157733000	USD
CY2020Q3	exr	Derivative With Contingent Features Fair Value Of Asset Liability Net DerivativeWithContingentFeaturesFairValueOfAssetLiabilityNet	-113320000	USD
CY2020Q3	exr	Derivative Instruments With Contingent Features Contingent Cash Settlement Value DerivativeInstrumentsWithContingentFeaturesContingentCashSettlementValue	113320000	USD
CY2020Q3	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	4492000	USD
CY2019Q3	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	4492000	USD
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	8984000	USD
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	13476000	USD
CY2020Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1233000	USD
CY2019Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1186000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3675000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3533000	USD
CY2020Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	5725000	USD
CY2019Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	5678000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	12659000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	17009000	USD
CY2019Q2	exr	Number Of Sales Agents NumberOfSalesAgents	9	sales_agent
CY2017Q4	us-gaap	Stock Repurchase Program Period In Force1 StockRepurchaseProgramPeriodInForce1	P3Y
CY2017Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	400000000	USD
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	826797	shares
	exr	Stock Repurchased During Period Average Cost Per Share StockRepurchasedDuringPeriodAverageCostPerShare	82.09
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	67873000	USD
CY2020Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	332127000	USD
CY2019Q4	us-gaap	Due From Related Parties Noncurrent DueFromRelatedPartiesNoncurrent	100000000	USD
CY2020Q3	us-gaap	Due From Related Parties Noncurrent DueFromRelatedPartiesNoncurrent	100000000	USD
CY2014Q4	us-gaap	Origination Of Notes Receivable From Related Parties OriginationOfNotesReceivableFromRelatedParties	20230000	USD
	exr	Notes Receivable Stated Interest Rate NotesReceivableStatedInterestRate	0.050
CY2020Q3	exr	Proceeds From Collection Of Notes Receivable For Stock ProceedsFromCollectionOfNotesReceivableForStock	8226000	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
CY2020Q3	exr	Common Stock Average Closing Market Price CommonStockAverageClosingMarketPrice	107.20
CY2020Q3	us-gaap	Units Of Partnership Interest Amount UnitsOfPartnershipInterestAmount	5815916	shares
CY2020Q3	exr	Operating Partnership Units Redemption Amount OperatingPartnershipUnitsRedemptionAmount	623466000	USD
	exr	Noncontrolling Interest Operating Partnership Units Redeemed For Common Stock NoncontrollingInterestOperatingPartnershipUnitsRedeemedForCommonStock	108862	shares
	exr	Noncontrolling Interest Operating Partnership Units Redeemed For Common Stock NoncontrollingInterestOperatingPartnershipUnitsRedeemedForCommonStock	239619	shares
	exr	Increase In Noncontrolling Interest Units Conversion Of Preferred Units IncreaseInNoncontrollingInterestUnitsConversionOfPreferredUnits	0	shares
	exr	Increase In Noncontrolling Interest Units Conversion Of Preferred Units IncreaseInNoncontrollingInterestUnitsConversionOfPreferredUnits	270709	shares
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	8605000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	13307000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	13000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	38299000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	36063000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	23894000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	22519000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	72242000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	68548000	USD
CY2020Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	56412000	USD
CY2019Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	56051000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	167705000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	165116000	USD
CY2020Q3	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	0	USD
CY2019Q3	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	0	USD
	exr	Gains Losses On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets GainsLossesOnRealEstateTransactionsAndEarnOutFromPriorAcquisitionAndSaleOfOtherAssets	1205000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	42213000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	46908000	USD
	us-gaap	Interest Expense InterestExpense	127610000	USD
	us-gaap	Interest Expense InterestExpense	141716000	USD
CY2020Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1233000	USD
CY2019Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1186000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3675000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3533000	USD
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	3145000	USD
CY2019Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	2799000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	6488000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	5905000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5605000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2704000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	15692000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8455000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4657000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4052000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10013000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	123854000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	115995000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8580000	USD
	us-gaap	Profit Loss ProfitLoss	351273000	USD
	us-gaap	Profit Loss ProfitLoss	330844000	USD

Files In Submission

Name	View Source	Status
0001628280-20-015840-index-headers.html	Edgar Link	pending
0001628280-20-015840-index.html	Edgar Link	pending
0001628280-20-015840.txt	Edgar Link	pending
0001628280-20-015840-xbrl.zip	Edgar Link	pending
exr-20200930.htm	Edgar Link	pending
exr-20200930.xsd	Edgar Link	pending
exr-20200930_cal.xml	Edgar Link	unprocessable
exr-20200930_def.xml	Edgar Link	unprocessable
exr-20200930_htm.xml	Edgar Link	completed
exr-20200930_lab.xml	Edgar Link	unprocessable
exr-20200930_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
q3202010qex311.htm	Edgar Link	pending
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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

2020 Q4 Form 10-Q Financial Statement

#000162828020015840 Filed on November 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXR Extra Space Storage Inc. Stock $exr

2020 Q4 Form 10-Q Financial Statement

#000162828020015840 Filed on November 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXR
Extra Space Storage Inc. Stock $exr