Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Stock Options Outstanding and Exercisable Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Principal amount of notes sold Financing Receivable, Sale and Reclassification to Held-for-Sale Average amount of insurance coverage Tenant Reinsurance Policy Average Amount Of Insurance Coverage Represents the average amount of insurance coverage under the tenant reinsurance policy. Schedule of Investments in Unconsolidated Real Estate Entities Schedule Of Real Estate Investments [Table Text Block] Schedule Of Real Estate Investments [Table Text Block] WI WISCONSIN Revolving credit facility, maximum borrowing capacity Capacity Line of Credit Facility, Maximum Borrowing Capacity Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Contract term Revenue From Contract With Customer, Contract Term Revenue From Contract With Customer, Contract Term Award Type [Domain] Award Type [Domain] Fair Value as of Grant Date Award Grant Date Fair Value WA WASHINGTON Tax credits/true-up Effective Income Tax Rate Reconciliation Tax Credits Adjustments Effective income tax rate reconciliation tax credits adjustments. Cash paid for OP Units redeemed Noncontrolling Interest, Operating Partnership Units Redeemed, Cash Paid Noncontrolling Interest, Operating Partnership Units Redeemed, Cash Paid Investment, Name [Domain] Investment, Name [Domain] Interest Rate Line of Credit Facility, Interest Rate at Period End Total cash paid by the company Payments to Acquire Businesses, Gross Fair Values of Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Number of stores owned by joint ventures Number of Stores Owned by Joint Ventures Number of Stores Owned by Joint Ventures Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Payments to acquire investments Payments to Acquire Investments Property rental Lease Income Insider Trading Policies and Procedures [Line Items] Exercisable at the end of the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Shares issued, price (in dollars per share) Shares Issued, Price Per Share Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Lease Arrangement [Domain] Lease Arrangement [Domain] [Domain] for Lease Arrangement [Axis] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Five Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Stockholders' Equity Equity [Text Block] Vested Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Ownership [Axis] Ownership [Axis] Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Preferred Operating Partnership Preferred Operating Partnership [Member] Preferred Operating Partnership [Member] Gross carrying amount - Land SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Land, Amount Noncontrolling Interest [Table] Noncontrolling Interest [Table] Change in deferred expense Deferred Federal Income Tax Expense (Benefit) Preferred stock, $0.01 par value, 50,000,000 shares authorized, no shares issued or outstanding Preferred Stock, Value, Issued Issuance and purchase of notes receivable Payments to purchase notes receivable Payments to Acquire Notes Receivable Dividends paid on common stock Payments of Ordinary Dividends, Common Stock Diluted (in dollars per share) Earnings Per Share, Diluted Receivable [Domain] Receivable [Domain] Supplemental schedule of cash flow information Supplemental Cash Flow Elements [Abstract] TX TEXAS PR II EXR JV LLC PR II EXR JV LLC [Member] PR II EXR JV LLC Extinguishment of debt Extinguishment of Debt, Amount Line of Credit Line of Credit [Member] Life Storage Merger transition costs Life Storage Merger transition costs Asset Acquisition, Acquisition Related Costs Asset Acquisition, Acquisition Related Costs Secured notes payable Secured Loan With Bank [Member] Secured Loan With Bank [Member] Real estate under development/redevelopment Real Estate Under Development [Member] Real Estate Under Development [Member] Trading Symbol Trading Symbol Noncontrolling interest, increase from subsidiary issuance (in shares) Noncontrolling Interest, Increase from Subsidiary Equity Issuance, Shares Noncontrolling Interest, Increase from Subsidiary Equity Issuance, Shares Equity investment in joint venture partnerships Asset Acquisition, Equity Interests In Joint Venture Partnerships Asset Acquisition, Equity Interests In Joint Venture Partnerships Proceeds from sale of notes receivable Proceeds from Sale of Notes Receivable Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Commitment to acquire stores, scheduled to close in next fiscal year Commitment To Acquire Retail Space, Expected To Close Next Fiscal Year [Member] Commitment To Acquire Retail Space, Expected To Close Next Fiscal Year [Member] Credit Line 1 First Credit Line [Member] First Credit Line [Member] JCAP Series B Preferred Stock JCAP Series B Preferred Stock [Member] JCAP Series B Preferred Stock VA VIRGINIA Gross Carrying Amount Intangible Assets, Gross (Excluding Goodwill) Weighted average forfeiture rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Forfeiture Rate Represents the estimated weighted average forfeiture rate which is adjusted periodically based on the extent to which actual forfeitures differ, or are expected to differ, from the previous estimates. Fixed-rate debt to total debt percentage Debt Instrument, Fixed Rate Debt To Total Debt Rate Debt Instrument, Fixed Rate Debt To Total Debt Rate Non-cash interest expense related to amortization of discount on Life Storage unsecured senior notes Non-cash interest expense related to amortization of discount on Life Storage unsecured senior notes Amortization of Debt Discount (Premium) Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] UT UTAH Extra Space Storage Inc. stockholders' equity: Equity, Attributable to Parent [Abstract] Number of properties whereby leases cannot be classified as ground or building leases Number Of Leased Properties That Cannot Be Classified As Ground Or Building Leases Represents the number of properties to which purchase price amounts are allocated, which cannot be classified as ground or building leases and represented as Intangible lease rights. Schedule of Computation of Earnings Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Components of Real Estate Assets Schedule Of Real Estate Assets [Table Text Block] Tabular disclosure of the components of real estate assets. It may include gross carrying amount, accumulated depreciation and net carrying amount. Senior Notes, Assumed From Life Storage Senior Notes, Assumed From Life Storage [Member] Senior Notes, Assumed From Life Storage Executive Category: Executive Category [Axis] Series D Units Series D Units [Member] Series D Units [Member] Shares Units Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Equity interest issued conversion ratio Asset Acquisition, Equity Interest Issued or Issuable, Share Conversion Ratio Asset Acquisition, Equity Interest Issued or Issuable, Share Conversion Ratio Variable Rate Component [Domain] Variable Rate Component [Domain] Variable Rate Component [Domain] Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Aggregate offering price Aggregate Offering Price Of Common Share Aggregate offering price of common share. Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Self storage facilities Self Storage Facility [Member] Self Storage Facility [Member] Carrying Value Reported Value Measurement [Member] Amortization period of excess purchase price included in equity earnings Equity Method Investment Excess Purchase Price Amortization Period Represents the period of amortization of the excess purchase price of equity investments over its original basis included in equity earnings. Equity Components [Axis] Equity Components [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Hedging Relationship [Domain] Hedging Relationship [Domain] Shares available for issuance under plans (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant State deferred taxes Deferred Tax Liabilities State Taxes Deferred Tax Liabilities State Taxes 2025 Long-Term Debt, Maturity, Year Two Options granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Number of leases Lessee, Lease, Number Of Leases Lessee, Lease, Number Of Leases Intangible tenant relationships and lease rights Intangible Tenant Relationships And Lease Rights [Member] Intangible Tenant Relationships And Lease Rights [Member Entity Smaller Reporting Company Entity Small Business Local Phone Number Local Phone Number Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets Gain (Loss) From Unconsolidated Real Estate Joint Ventures, Gain (Loss) On Sale of Real Estate Gain (Loss) From Unconsolidated Real Estate Joint Ventures, Gain (Loss) On Sale of Real Estate Recovery of Erroneously Awarded Compensation Disclosure [Line Items] 2028 Finance Lease, Liability, to be Paid, Year Five Combined notional amount Notional amounts Derivative, Notional Amount Intangible lease rights Real Estate Investment Property, Intangible Lease Rights Real Estate Investment Property, Intangible Lease Rights Redemption of Preferred Operating Partnership units for common stock Redemption Of Preferred Operating Partnership Units For Common Stock [Abstract] Redemption Of Preferred Operating Partnership Units For Common Stock Improvements SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Improvements Measurement Frequency [Axis] Measurement Frequency [Axis] Weighted Average Remaining Contractual Life (Years) Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Thereafter Lessee, Operating And Finance Lease, Liability, Payments, Due After Year Five Lessee, Operating And Finance Lease, Liability, Payments, Due After Year Five Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Real estate, gross: SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] OP Units redeemed for cash (in shares) Noncontrolling Interest, Operating Partnership Units Redeemed For Cash Noncontrolling Interest, Operating Partnership Units Redeemed For Cash Cash and other assets Asset Acquisition, Cash And Other Assets Asset Acquisition, Cash And Other Assets Debt securities, term Debt Securities Held To Maturity, Term Debt Securities Held To Maturity, Term Trademarks Trademarks [Member] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Schedule of Components of Notes Payable Schedule of Long-Term Debt Instruments [Table Text Block] Establishment of finance lease assets and lease liabilities Establishment of Finance Lease Assets and Lease Liabilities [Abstract] Establishment of Finance Lease Assets and Lease Liabilities Redemption of units for stock and cash Redemption Of Units For Stock And Cash [Member] Redemption Of Units For Stock And Cash Taxes paid upon net settlement of share based compensation Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Reconciliation of Purchase Price Schedule of Business Acquisitions, by Acquisition [Table Text Block] Common stock sold (in shares) Sale of Stock, Number of Shares Issued in Transaction Total revenues Revenues Revenues Asset Acquisitions Asset Acquisition [Table Text Block] Schedule of Antidilutive Shares Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Options outstanding (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total tax expense Federal Income Tax Expense (Benefit), Continuing Operations Excess Profit % Unconsolidated Joint Ventures Excess Profit Participation Percentage The percentage of excess profit participation in unconsolidated joint ventures. Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Fixed rate debt Notes Payable, Fair Value Disclosure Transaction costs Transaction costs Business Combination, Acquisition Related Costs Number of stores acquired with issuance of common stock Number Of Stores Acquired With Issuance Of Common Stock Number Of Stores Acquired With Issuance Of Common Stock Award Type [Axis] Award Type [Axis] Anti-dilutive securities excluded from computation of earnings per common share (in shares) Equivalent Shares (if converted) (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Income allocated to noncontrolling interest - Preferred Operating Partnership Units and Operating Partnership Units Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership Net Income Loss Attributable To Noncontrolling Interest In Operating Partnership Supplemental schedule of noncash investing and financing activities: Noncash Investing and Financing Items [Abstract] Dividends paid on common stock Dividends, Common Stock Aggregate cost of real estate for U.S. federal income tax purposes SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Transfers from construction in progress SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Transfers In (Out) SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Transfers In (Out) Note receivable interest rate Financing Receivable, Stated Interest Rate Financing Receivable, Stated Interest Rate Real estate assets - operating lease right-of-use assets Right-of-use assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Present value adjustments Lessee, Operating Lease, Liability, Undiscounted Excess Amount PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Leases Lessee, Finance Leases [Text Block] Summarized Statement of Components of Income Tax Provision Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Investment in unconsolidated real estate entities Payments For Investment In Unconsolidated Real Estate Entities Payments For Investment In Unconsolidated Real Estate Entities Management Services Agreements (MSA) Management Services Agreements (MSA) [Member] Management Services Agreements (MSA) [Member] Strategic Storage Preferred Stock Strategic Storage Preferred Stock [Member] Strategic Storage Preferred Stock Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, by Property [Table] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, by Property [Table] Interest expense related to finance lease liabilities Finance Lease, Interest Expense Schedule of Other Assets Schedule of Other Assets [Table Text Block] Holders Of Series A Preferred Operating Partnership Units Holders Of Series A Preferred Operating Partnership Units [Member] Holders Of Series A Preferred Operating Partnership Units [Member] Real Estate [Domain] Real Estate [Domain] 2026 Lessee, Operating Lease, Liability, to be Paid, Year Three Occupancy rate Occupancy Rate Occupancy Rate Other intangible assets, net Finite-Lived Intangible Assets, Net Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] JCAP Series A Preferred Stock JCAP Series A Preferred Stock [Member] JCAP Series A Preferred Stock Loan to value ratio Financing Receivable, Loan To Value Ratio Financing Receivable, Loan To Value Ratio Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization OP Units redeemed for common stock (in shares) Noncontrolling Interest, Operating Partnership Units Redeemed For Common Stock Noncontrolling Interest, Operating Partnership Units Redeemed For Common Stock 2025 Lessee, Operating Lease, Liability, to be Paid, Year Two Average share price (in dollars per share) Sale of Stock, Price Per Share Interest income Interest income Investment Income, Interest Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Commitment to acquire stores, scheduled to close in 2024 Commitment To Acquire Retail Space, Expected To Close In 2024 [Member] Commitment To Acquire Retail Space, Expected To Close In 2024 Total consideration transferred Business Combination, Consideration Transferred Schedule of Weighted Average Assumptions Used to Estimate Fair Value of Awards Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Security Exchange Name Security Exchange Name Stock-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Preferred Units, Class [Domain] Preferred Units, Class [Domain] Options Share-based Payment Arrangement, Option [Member] Employee Stock Option [Member] Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Common stock and paid-in capital Redemption Of Operating Partnership Units Held By Noncontrolling Interest Including Additional Paid In Capital Redemption Of Operating Partnership Units Held By Noncontrolling Interest Including Additional Paid In Capital Investments in Debt Securities and Notes Receivable Investment, Policy [Policy Text Block] Other unconsolidated real estate ventures Other Minority Owned Properties [Member] Other Minority Owned Properties [Member] Dividends and Interest Receivable Dividend and Interest Receivable Total expenses Operating expenses Costs and Expenses Asset Acquisition [Table] Asset Acquisition [Table] Maximum Maximum [Member] Unrecognized compensation cost Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Type Document Type Life Storage, Inc Life Storage, Inc [Member] Life Storage, Inc Store Lease Store Lease [Member] Store Lease [Member] Tabular List, Table Tabular List [Table Text Block] Notes payable, net Other Notes Payable Real estate under development/redevelopment Development in Process Period used as a denomination to determine the average closing price of common stock Average Closing Market Price Measurement Period Represents the period over which the average market closing price is measured. 2026 Finance Lease, Liability, to be Paid, Year Three Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Current expense Current Federal Tax Expense (Benefit) Gain (loss) on sale Equity Method Investment, Realized Gain (Loss) on Disposal Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Variable rate notes payable Long-Term Debt, Percentage Bearing Variable Interest, Amount Business Acquisition [Axis] Business Acquisition [Axis] Schedule of Information on Lines of Credit Schedule of Line of Credit Facilities [Table Text Block] Strategic Storage Trust VI, Inc. Preferred Stock Strategic Storage Trust VI, Inc. Preferred Stock [Member] Strategic Storage Trust VI, Inc. Preferred Stock Derivative [Table] Derivative [Table] Acquisition and establishment of operating lease right of use assets and lease liabilities Operating Lease Right Of Use Assets and Lease Liabilites [Abstract] Operating Lease Right Of Use Assets and Lease Liabilites Change in deferred expense Deferred State and Local Income Tax Expense (Benefit) Variable Rate [Axis] Variable Rate [Axis] Gain on sale Gains (Losses) on Sales of Investment Real Estate Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Expenses: Costs and Expenses [Abstract] Title of 12(b) Security Title of 12(b) Security Payment for draw on interest holdback Payment For Draw On Interest Holdback Payment For Draw On Interest Holdback Investment in unconsolidated real estate ventures Investments In Real Estate Joint Ventures, Net Of Distributions Received Investments In Real Estate Joint Ventures, Net Of Distributions Received Asset Acquisition [Line Items] Asset Acquisition [Line Items] Extinguishment of Debt [Axis] Extinguishment of Debt [Axis] Distributions to noncontrolling interests Payments of Ordinary Dividends, Noncontrolling Interest Trade name Indefinite-Lived Intangible Assets (Excluding Goodwill) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Noncontrolling interest, noncontrolling owners, percent Subsidiary, Ownership Percentage, Noncontrolling Owner Operating Segments Operating Segments [Member] Balance at the beginning of the period (in dollars per share) Balance at the end of the period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Strike rate Derivative, Fixed Interest Rate Distributions to minority investors Payments to Noncontrolling Interests Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Less: accumulated depreciation and amortization Real Estate Investment Property, Accumulated Depreciation Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Entity Tax Identification Number Entity Tax Identification Number Schedule III - Real Estate and Accumulated Depreciation SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Text Block] Total lease cost Lease, Cost VRS Self Storage, LLC VRS Self Storage LLC [Member] VRS Self Storage LLC [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Principles of Consolidation Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Entity Interactive Data Current Entity Interactive Data Current Right of use asset - finance lease Finance Lease [Member] Finance Lease [Member] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Operating and finance lease, original lease term Lessee, Lease, Term Of Contract Lessee, Lease, Term Of Contract Bargold Bargold [Member] Bargold Net liabilities assumed Asset Acquisition, Real Estate Assets, Net Liabilities Assumed Asset Acquisition, Real Estate Assets, Net Liabilities Assumed Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Series A Units Series A Units Series A Units [Member] Series A Units [Member] Other assets Other Assets [Member] Real estate assets Asset Acquisition, Real Estate Assets Asset Acquisition, Real Estate Assets Interest sold, number of unconsolidated joint ventures Equity Method Investments, Number Of Investments Sold Equity Method Investments, Number Of Investments Sold Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Measure: Measure [Axis] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Name Outstanding Recovery, Individual Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Advertising expense Advertising Expense Schedule of Major Sources of Temporary Differences Stated at their Deferred Tax Effects Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Building and Improvements Initial Cost SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements Derivative Instruments and Hedging Activities Derivatives, Policy [Policy Text Block] State deferred taxes Deferred Tax Assets, State Taxes Total Lessee, Operating And Finance Lease, Liability, Payments, Due [Abstract] Lessee, Operating And Finance Lease, Liability, Payments, Due [Abstract] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Bridge loans, extension term Financing Receivable, Extension Term Financing Receivable, Extension Term 2024 Finite-Lived Intangible Asset, Expected Amortization, Year One Operating cash outflows for operating lease payments Operating Lease, Payments Common stock, outstanding (in shares) Common Stock, Shares, Outstanding PEO PEO [Member] Average share price (in dollars per share) Average Share Price Per Share Average Share Price Per Share Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units) Income (Loss) Attributable to Noncontrolling Interest Fixed Component Represents the component of income or loss attributable to the noncontrolling interest as a result of fixed distributions paid to Preferred Operating unit holders. Auditor Location Auditor Location Employee Benefit Plan Retirement Benefits [Text Block] Instruments to be settled in cash (at least) Preferred Operating Partnership Units Amount to be Settled in Cash Minimum Represents the minimum amount of convertible preferred operating partnership units which will be settled in cash upon conversion. Preferred OP Units Preferred OP Units [Member] Preferred OP Units State and local tax expense - net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Common stock, par value (dollars per share) Common Stock, Par or Stated Value Per Share Sale of Stock [Axis] Sale of Stock [Axis] Cash for payoff of Life Storage credit facility and debt Asset Acquisition, Consideration Transferred, Cash Paid For Assumed Debt Asset Acquisition, Consideration Transferred, Cash Paid For Assumed Debt Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Gain (loss) reclassified from OCI Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Swap Agreements Swap Agreements Interest Rate Swap [Member] Debt Instrument [Axis] Debt Instrument [Axis] Total revenues Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Principal payments on unsecured term loans and senior notes and revolving lines of credit Repayments of debt Repayments of Debt Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] HF1 Sovran HHF Storage Holdings LLC HF1 Sovran HHF Storage Holdings LLC [Member] HF1 Sovran HHF Storage Holdings LLC Credit Facility [Axis] Credit Facility [Axis] Buildings, improvements and other intangibles Investment Building and Building Improvements Total liabilities Liabilities Life Storage Merger, net of cash acquired Payments For Asset Acquisition, Net Of Cash Acquired Payments For Asset Acquisition, Net Of Cash Acquired Current expense Current Income Tax Expense (Benefit) Volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Measurement Frequency [Domain] Measurement Frequency [Domain] Weighted average interest rate, fixed debt Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets Equity Method Investments, Gain (Loss) On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest Equity Method Investments, Gain (Loss) On Sale Of Real Estate Assets And Purchase Of Joint Venture Partner Interest Accrued construction costs and capital expenditures Accrued Construction Costs And Capital Expenditures [Abstract] Accrued Construction Costs And Capital Expenditures [Abstract] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Additional paid-in capital Redemption Of Operating Partnership Units For Common Stock Including Additional Paid In Capital Represents the value of Operating Partnership units redeemed for common stock including additional paid in capital. Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Number of storage units Number Of Storage Units Number Of Storage Units Gross carrying amount - Building and improvements SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Building and Improvements, Amount Redemption of units for cash Redemption Of Units For Cash [Member] Redemption Of Units For Cash [Member] General and administrative General and administrative expense General and Administrative Expense Weighted average exercise price (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Current expense Current State and Local Tax Expense (Benefit) Operating and Finance lease liabilities Deferred Tax Assets, Lease Liability Deferred Tax Assets, Lease Liability Other liabilities Other Liabilities Earnings Per Common Share Earnings Per Share, Policy [Policy Text Block] Repurchase of common stock, net of offering costs (in shares) Shares repurchased (in shares) Stock Repurchased During Period, Shares Debt SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Amount of Encumbrances Other assets - Cash flow hedge swap agreements Asset derivatives Interest Rate Cash Flow Hedge Asset at Fair Value Gain on real estate transactions Gains (Losses) On Real Estate Transactions, Net Of Impairment Of Real Estate Gains (Losses) On Real Estate Transactions, Net Of Impairment Of Real Estate State and local tax expense - net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 2027 Finance Lease, Liability, to be Paid, Year Four Lease liabilities Lessee, Operating And Finance Lease, Liability Lessee, Operating And Finance Lease, Liability Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Exercisable at the end of the period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Class of Stock [Axis] Class of Stock [Axis] 2025 Lessee, Operating And Finance Lease, Liability, Payments, Due Year Two Lessee, Operating And Finance Lease, Liability, Payments, Due Year Two Investments in Unconsolidated Real Estate Entities Equity Method Investments and Joint Ventures Disclosure [Text Block] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Unsecured term loans, net Unsecured Debt Depreciation and amortization Depreciation and amortization expense Depreciation, Depletion and Amortization Deferred tax assets: Deferred Tax Assets, Gross [Abstract] Deferred line of credit financing costs, net Deferred Costs Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Debt securities - Preferred Stock Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss Business Combination and Asset Acquisition [Abstract] Notes receivable Financing Receivable, after Allowance for Credit Loss Consolidation Items [Axis] Consolidation Items [Axis] Variable Rate Component [Axis] Variable Rate Component [Axis] Variable Rate Component [Axis] Total revenues Business Acquisition, Pro Forma Revenue Valuation allowance Deferred Tax Assets, Valuation Allowance Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Finance Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Life Storage Merger issuance of common stock and Operating Partnership units Noncontrolling Interest, Operating Partnership Units Issued With Asset Acquisition, Value Noncontrolling Interest, Operating Partnership Units Issued With Asset Acquisition, Value Fixed priority return on preferred OP units, liquidation value Noncontrolling Interest In Preferred Operating Partnership Units Fixed Priority Return Redemption Value Represents the liquidation value of preferred operating partnership units attributable to noncontrolling preferred unit holders on which the fixed priority return is granted. Tax credits/true-up Income Tax Credits and Adjustments 2024 Lessee, Operating And Finance Lease, Liability, Payments, Year One Lessee, Operating And Finance Lease, Liability, Payments, Year One JCAP Series D Preferred Stock JCAP Series D Preferred Stock [Member] JCAP Series D Preferred Stock Number of consolidated joint ventures Real Estate Consolidated Joint Ventures Number Represents the number of consolidated joint ventures as of the balance sheet date. Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Preferred stock, issued (in shares) Preferred Stock, Shares Issued Accounts payables and accrued liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Other Assets Other Assets Disclosure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Percentage of employee's compensation that qualifies for 100 percent matching contribution by the company Maximum Percentage of Compensation By Plan Participants Subject to Hundred Percent Matching of Company Represents the percentage of employee's compensation that qualifies for 100 percent matching contribution by the company. Less: Unamortized debt issuance costs Debt Issuance Costs, Net Annual rate of return percent Noncontrolling Interest In Preferred Operating Partnership Units Annual Rate Of Return Represents the annual rate of return of preferred operating partnership units. Audit Information [Abstract] Audit Information Total deferred tax assets Deferred Tax Assets, Gross Number of claims made Number Of Claims Made Under Tenant Reinsurance Program Represents the number of claims made under tenant reinsurance program during the period. Finite-lived intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles 2024 Lessee, Operating Lease, Liability, to be Paid, Year One Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Title Trading Arrangement, Individual Title Bridge loans, extension option Financing Receivable, Extension Option Financing Receivable, Extension Option Common stock Common Stock [Member] Individual: Individual [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Less: Discount on unsecured senior notes Debt Instrument, Unamortized Discount (Premium), Net Non-taxable REIT income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Consideration to be paid on redemption of common OP units Operating Partnership Units Redemption Amount Represents the amount the entity would have paid in cash to redeem the operating partnership units. Combined weighted average interest rate Variable rate Debt, Weighted Average Interest Rate Total noncontrolling interests and equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Distributions to Operating Partnership units held by noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Storage Portfolio I LLC Storage Portfolio I LLC [Member] Storage Portfolio I LLC [Member] Minimum Minimum [Member] Equipment and fixtures, net Property, Plant and Equipment, Net Dividends paid on common stock (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Number of storage facilities in which the entity had equity interests Number of Real Estate Properties Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Disposal Group Classification [Axis] Disposal Group Classification [Axis] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Assets: Assets [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] 2032 Long-Term Debt, Maturity, Year Nine Long-Term Debt, Maturity, Year Nine Number of consolidated joint venture stores acquired Asset Acquisition, Number Of Consolidated Joint Venture Stores Acquired Asset Acquisition, Number Of Consolidated Joint Venture Stores Acquired Schedule of Balance Sheet Classification and Fair Value of Entity's Derivative Financial Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Other Deferred Tax Assets, Other Present value adjustments Lessee, Operating And Finance Lease, Liability, Undiscounted Excess Amount Lessee, Operating And Finance Lease, Liability, Undiscounted Excess Amount Real estate assets, net Noncash Or Part Noncash Acquisition Net Real Estate Assets Acquired Represents the amount of real estate assets that an Entity acquires in a noncash (or part noncash) acquisition. Real estate assets refer to the lands, buildings and intangible assets (including those that are part of operations and those under development) of a real estate entity, net of accumulated depreciation and amortization. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Earnings and dividends allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Accumulated Deficit Retained Earnings [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Options exercisable, weighted average exercise price (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Change in fair value of interest rate swaps Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Basic (in dollars per share) Earnings Per Share, Basic Accumulated depreciation: SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward] Accounting Policies [Abstract] Accounting Policies [Abstract] Gain (loss) on disposition of assets Gain (Loss) on Disposition of Assets Sale of Stock [Domain] Sale of Stock [Domain] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Intrinsic value of options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value 2028 Lessee, Operating And Finance Lease, Liability, Payments, Due Year Five Lessee, Operating And Finance Lease, Liability, Payments, Due Year Five Value of common stock issued Value of OP units issued Stock Issued Proceeds from unsecured term loans and senior notes and revolving lines of credit Proceeds from Issuance of Debt Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] Document Transition Report Document Transition Report Award Timing Predetermined Award Timing Predetermined [Flag] Real estate assets, net Net real estate assets Real Estate Investment Property, Net Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Additional units redeemed (in shares) Partners Capital Account Additional Units Redeemed The number of additional Preferred Operating Partnership units that can be redeemed without a required repayment of the note payable secured by such Preferred Operating Partnership Units. Depreciation and amortization Other Depreciation and Amortization Principal payments received from notes receivable Proceeds from Collection of Notes Receivable Interest Rate Swap, Forward-Starting Interest Rate Swap, Forward-Starting [Member] Interest Rate Swap, Forward-Starting Entity Public Float Entity Public Float Joseph D. Margolis [Member] Joseph D. Margolis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Risk Management and Use of Financial Instruments Risk Management Activities Policy [Policy Text Block] Risk Management Activities Policy [Text Block] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Derivative Instrument [Axis] Derivative Instrument [Axis] HF2 Sovran HHF Storage Holdings II LLC Sovran HHF Storage Holdings II LLC [Member] Sovran HHF Storage Holdings II LLC Senior note balances Total Long-Term Debt, Gross OP Units (in shares) Incremental Common Shares Attributable To Conversion Of Operating Partnership Units Shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible operating partnership units. All Trading Arrangements All Trading Arrangements [Member] Notes Receivable - Senior Mezzanine Loan, net Notes Receivable [Member] 2029 Long-Term Debt, Maturity, Year Six Long-Term Debt, Maturity, Year Six Net income allocated to Operating Partnership and other noncontrolling interests Minority Interest In Net Income Loss Operating Partnerships And Other Amount of net income (loss) for the period allocated to noncontrolling partners of an operating partnership and others included in the entity's consolidated financial statements. All Adjustments to Compensation All Adjustments to Compensation [Member] Purchase of note receivable Financing Receivable, Purchase Shares related to exchangeable senior notes and dilutive stock options (in shares) Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements related to stock options. Tenant relationships, estimated useful life Asset Acquisition, Tenant Relationships, Estimated Useful Life Asset Acquisition, Tenant Relationships, Estimated Useful Life Compensation Amount Outstanding Recovery Compensation Amount Regional Office Lease Regional Office Lease [Member] Regional Office Lease [Member] Fair value of interest rate swaps Derivative Asset Cancelled (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value HF1 Sovran HHF Storage Holdings LLC Sovran HHF Storage Holdings LLC [Member] Sovran HHF Storage Holdings LLC Change in deferred expense Deferred Income Tax Expense (Benefit) Debt securities, extension option Debt Securities Held To Maturity, Extension Option Debt Securities Held To Maturity, Extension Option Net proceeds from exercise of stock options Proceeds from Stock Options Exercised Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Other Non Controlling Interest Other [Member] Non Controlling Interest Other [Member] Share-based Payment Arrangement, Option, Exercise Price Range [Table] Share-Based Payment Arrangement, Option, Exercise Price Range [Table] Investments in unconsolidated real estate entities Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures Lease liabilities Finance Lease, Liability HF10 Life Storage HHF Wasatch Holdings LLC HF10 Life Storage HHF Wasatch Holdings LLC [Member] HF10 Life Storage HHF Wasatch Holdings LLC Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Cancelled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Investments in Unconsolidated Real Estate Entities Equity Method Investments [Policy Text Block] $85.99 - $85.99 Exercise Price Range Two [Member] Exercise Price Range Two [Member] Aggregate intrinsic value Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Aggregate Intrinsic Value [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Aggregate Intrinsic Value [Abstract] 2024 Long-Term Debt, Maturity, Year One Number of stores sold Equity Method Investments, Number Of Stores Sold Equity Method Investments, Number Of Stores Sold Number of stores held as collateral Financing Receivable, Stores Held As Collateral Financing Receivable, Stores Held As Collateral Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Other assets, net Other assets, net Other Assets Transaction Costs Asset Acquisition, Consideration Transferred, Transaction Cost Cash distributions in unconsolidated real estate ventures Cash Distributions In Unconsolidated Real Estate Ventures Cash Distributions In Unconsolidated Real Estate Ventures HF6 191 V Life Storage Holdings LLC 191 V Life Storage Holdings LLC [Member] 191 V Life Storage Holdings LLC Current development SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Other Addition Issuance of common stock in conjunction with acquisition (in shares) Stock Issued During Period, Shares, Acquisitions Exercise price range, upper limit (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Self-Storage Operations Self Storage Operations [Member] Self Storage Operations [Member] Document Period End Date Document Period End Date Unit conversion ratio Shareholders' Equity, Units Conversion Ratio Shareholders' Equity, Units Conversion Ratio Dividend rate increase threshold Preferred Stock, Dividend Rate Increase, Threshold Preferred Stock, Dividend Rate Increase, Threshold Proceeds from sale of real estate assets and investments in real estate ventures Proceeds from Sale of Real Estate Adoption Date Trading Arrangement Adoption Date Adjustments and Costs to Land and Building Subsequent to Acquisition SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition, Cost Weighted average discount rate - finance leases Finance Lease, Weighted Average Discount Rate, Percent Revenues and Earnings of Acquired Company Business Acquisition, Pro Forma Information [Table Text Block] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Income tax expense Total provision Income Tax Expense (Benefit) Right of use asset - finance lease Finance Lease, Right-of-Use Asset, after Accumulated Amortization Maximum percentage of the company's matching contributions of next 2 percent of employee's compensation Maximum Percentage of Matching Contribution Made By Company For Next Two Percent of Participants Compensation Represents the percentage of the company's matching contributions of next 2 percent of employee's compensation. Depreciation expense SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Depreciation Expense Investments in Debt Securities and Notes Receivable Investments In Debt Securities And Financing Receivables [Text Block] Investments In Debt Securities And Financing Receivables Revenue and Expense Recognition Revenue And Expense Recognition Policy [Policy Text Block] Revenue And Expense Recognition Policy [Text Block] Noncontrolling interest represented by Preferred Operating Partnership units, net Noncontrolling Interest in Preferred Unit Holders Real estate assets held for sale included in real estate assets, net Real Estate, Held-for-Sale Total Real Estate Property Asset Acquisition, Consideration Transferred Real Estate Property Asset Acquisition, Consideration Transferred Equity [Abstract] Equity [Abstract] Weighted average remaining lease term - operating leases (years) Operating Lease, Weighted Average Remaining Lease Term Total assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Performance component weight percentage Share-based Compensation Arrangement By Share-based Payment Award, Component Weight, Percentage Share-based Compensation Arrangement By Share-based Payment Award, Component Weight, Percentage Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest [Table Text Block] Effective Income Tax Rate Reconciliation, Amount [Abstract] Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Captive insurance subsidiary Deferred Tax Liability, Captive Insurance Subsidiary Deferred Tax Liability, Captive Insurance Subsidiary Interest Rate Swap, Active Interest Rate Swap, Active [Member] Interest Rate Swap, Active Cash and cash equivalents Cash and equivalents Cash and Cash Equivalents, at Carrying Value Cash paid for business combination Payments to Acquire Businesses, Net of Cash Acquired Taxes paid upon net settlement of share based compensation (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Credit Facility [Domain] Credit Facility [Domain] Other Assets [Line Items] Other Assets [Line Items] Other Assets [Line Items] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Estimated useful life Property, Plant and Equipment, Useful Life Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Number of stores owned and/or managed Number Of Real Estate Properties Owned And Or Managed The number of real estate properties owned and/or managed as of the balance sheet date. Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Number of derivative financial instruments Derivative, Number of Instruments Held Proceeds from sale of unconsolidated joint ventures Proceeds from Sale of Equity Method Investments Derivatives with contingent features, net liability position Derivative With Contingent Features, Fair Value Of Asset (Liability), Net Derivative With Contingent Features, Fair Value Of Asset (Liability), Net Software development Software Development [Member] Other liabilities Establishment Of Finance Lease Liability Establishment Of Finance Lease Liability Issuance of Preferred D units in the Operating Partnership in conjunction with business combination Noncontrolling Interest, Increase From Business Combinations Other commitment Other Commitment Finance lease liability Right-of-use assets obtained in exchange for new finance lease liabilities Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Present value adjustments Finance Lease, Liability, Undiscounted Excess Amount Additional paid-in capital Additional Paid in Capital, Common Stock Employee contribution to retirement saving plan as a percentage of annual salary, maximum Maximum Percentage of Annual Salary Which Plan Participants May Contribute to the Plan The maximum percentage of annual salary contributions made by plan participants in retirement saving plan. Additional Paid-in Capital Additional Paid-in Capital [Member] Document Annual Report Document Annual Report Investment balance Investment In Unconsolidated Real Estate Entities, Net Of Distributions Investment In Unconsolidated Real Estate Entities, Net Of Distributions Unsecured senior notes Asset Acquisition, Unsecured Senior Notes Asset Acquisition, Unsecured Senior Notes Balance Sheet Location [Axis] Balance Sheet Location [Axis] Lines Of Credit Lines Of Credit [Member] Lines Of Credit Equity in earnings and dividend income from unconsolidated real estate entities Income (Loss) from Equity Method Investments Other liabilities Other Liabilities [Member] Cover page. Cover [Abstract] Unconsolidated Joint Venture Unconsolidated Joint Venture [Member] Unconsolidated Joint Venture Tenant reinsurance Direct Premiums Earned Non-taxable REIT income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Amortization of deferred financing costs Amortization of Debt Issuance Costs Fair value of net assets acquired Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Recurring Fair Value, Recurring [Member] Percentage of employee's compensation that qualifies for 50 percent matching contribution by the company Maximum Percentage of Compensation By Plan Participants Subject to Fifty Percent Matching of Company Represents the percentage of employee's compensation that qualifies for 50 percent matching contribution by company. Notes receivable from Preferred and Common Operating Partnership unit holders Due From Related Parties Fair Value Disclosure Fair value of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due after one year (or one business cycle). Preferred units outstanding (in shares) Preferred Units, Outstanding Total Lessee, Operating Lease, Liability, to be Paid Acquisitions SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Acquisitions SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Acquisitions Fixed liquidation value Noncontrolling Interest In Preferred Operating Partnership Units Fixed Liquidation Value Represents the fixed liquidation value of preferred operating partnership units. Cash flow hedging Cash Flow Hedging [Member] Redemption restriction period Preferred Stock Investment, Redemption Restriction Period Preferred Stock Investment, Redemption Restriction Period Total purchase price Total consideration Asset Acquisition, Consideration Transferred Amortization of finance lease right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Segment Information Segment Reporting Disclosure [Text Block] Intangible assets - tenant relationships Real Estate Investment Property, Intangible Tenant Relationships Real Estate Investment Property, Intangible Tenant Relationships Net increase (decrease) in cash, cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Secured Debt Secured Debt [Member] Operating lease, renewal term Lessee, Operating Lease, Renewal Term Equity Component [Domain] Equity Component [Domain] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Management fee revenues Property Management Fee Revenue Other Deferred Tax Liabilities, Other Entity Current Reporting Status Entity Current Reporting Status Period after which preferred stock dividend is subject to increase Preferred Stock Investment, Period After Which Dividend Rate Is Subject To Increase Preferred Stock Investment, Period After Which Dividend Rate Is Subject To Increase Issuance of Operating Partnership units in conjunction with business combination Noncontrolling Interest, Increase from Business Combination Income from operations Net operating income Operating Income (Loss) Bridge loans, original maturities Financing Receivable, Term Financing Receivable, Term Total deferred tax liabilities Deferred Tax Liabilities, Gross Life Storage Merger issuance of common stock and Operating Partnership Units (in shares) Noncontrolling Interest, Operating Partnership Units Issued With Asset Acquisition, Shares Noncontrolling Interest, Operating Partnership Units Issued With Asset Acquisition, Shares Series A Units (in shares) Incremental Common Shares Attributable to Exchangeable Preferred Operating Partnership Units Shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of exchangeable preferred operating partnership units. Extension term Line Of Credit Facility, Extension Term Line Of Credit Facility, Extension Term Segments [Axis] Segments [Axis] Schedule of Operating Properties Acquired Schedule of Asset Acquisitions [Table Text Block] Schedule of Asset Acquisitions [Table Text Block] Purchase of equipment and fixtures Payments to Acquire Furniture and Fixtures Fair Value Estimate of Fair Value Measurement [Member] Value of equity issued Issuance Of Equity For Acquisition Of Real Estate Assets Issuance Of Equity For Acquisition Of Real Estate Assets Other comprehensive income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Schedule of Nonvested Performance-based Units Activity Schedule of Nonvested Performance-Based Units Activity [Table Text Block] Specified Investment Grade Rating And Elects To Use Alternative Rates Specified Investment Grade Rating And Elects To Use Alternative Rates [Member] Specified Investment Grade Rating And Elects To Use Alternative Rates [Member] Equity in earnings and dividend income from unconsolidated real estate entities Income (Loss) And Dividend Income From Unconsolidated Real Estate Entities Income (Loss) And Dividend Income From Unconsolidated Real Estate Entities Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Customer relationships Customer Relationships [Member] Revolving lines of credit Amount Drawn Long-Term Line of Credit Real Estate Properties [Line Items] Real Estate Properties [Line Items] Noncontrolling Interests and Equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Variable Rate [Domain] Variable Rate [Domain] Other Assets [Table] Other Assets [Table] Other Assets [Table] Pay vs Performance Disclosure [Line Items] Entity Voluntary Filers Entity Voluntary Filers Statistical Measurement [Domain] Statistical Measurement [Domain] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Note receivable interest rate Notes Receivable Stated Interest Rate Represents the stated interest rate of notes receivable. Balance at the beginning of the period (in shares) Balance at the end of the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Debt Debt Disclosure [Text Block] Lease Arrangement [Axis] Lease Arrangement [Axis] Lease Arrangement [Axis] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Number of consolidated VIEs Number Of Consolidated Variable Interest Entities Number Of Consolidated Variable Interest Entities Dispositions and other SEC Schedule, 12-28, Real Estate Companies, Investment In Real Estate, Cost Of Investment In Real Estate, Other Additions (Deductions) SEC Schedule, 12-28, Real Estate Companies, Investment In Real Estate, Cost Of Investment In Real Estate, Other Additions (Deductions) Investments, Debt and Equity Securities [Abstract] Revolving Credit Facility Revolving Credit Facility [Member] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Performance-Based Stock Units Performance Shares [Member] Tax credits/true-up Income Tax Credits and Adjustments Federal A credit or adjustment for government or taxing authority authorized decrease in federal taxes owed as a result of meeting certain tax policy conditions. Segment Reporting [Abstract] Segment Reporting [Abstract] Exercisable at the end of period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Net income from operations Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Restatement Determination Date: Restatement Determination Date [Axis] Investment, Name [Axis] Investment, Name [Axis] Expected tax at statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Proceeds from principal payments on note receivable collateralized by OP Units Proceeds From Notes Receivable Collateralized By Noncontrolling Interest Proceeds From Notes Receivable Collateralized By Noncontrolling Interest Commitments and contingencies Commitments and Contingencies Operating Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Noncontrolling interests in Operating Partnership Note Receivable Payoff Noncontrolling interests in Operating Partnership Note Receivable Payoff Noncontrolling interests in Operating Partnership, Payment Of Note Receivable Proceeds from the sale of common stock, net of offering costs Proceeds from Issuance of Common Stock Geographical [Axis] Geographical [Axis] Equipment and fixtures Equipment And Fixtures [Member] Equipment And Fixtures [Member] Storage Portfolio II JV LLC Storage Portfolio II JV LLC [Member] Storage Portfolio II JV LLC [Member] Investment in debt securities (in shares) Debt Securities, Held To Maturity, Number Of Shares Debt Securities, Held To Maturity, Number Of Shares Gross operating real estate assets Real Estate Investment Property, at Cost Income Taxes Income Tax Disclosure [Text Block] Parcels of land acquired Number Of Parcels Of Land Acquired Number Of Parcels Of Land Acquired Issuance of common stock in connection with share based compensation (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture Fixed assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Noncontrolling Interest [Abstract] Noncontrolling Interest [Abstract] Value of OP Units issued in conjunction with business combination and acquisitions Noncontrolling Interest, Operating Partnership Units Issued With Acquisition, Value Noncontrolling Interest, Operating Partnership Units Issued With Acquisition, Value Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Preferred stock, par value (dollars per share) Preferred Stock, Par or Stated Value Per Share Business Acquisition [Line Items] Business Acquisition [Line Items] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] PEO Total Compensation Amount PEO Total Compensation Amount Hedging Relationship [Axis] Hedging Relationship [Axis] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Land Land Vested and Expected to Vest (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Tax credits/true-up Income Tax Credits And Adjustments State Income Tax Credits And Adjustments State Leases Lessor, Operating Leases [Text Block] Balance at the beginning of the period (in shares) Balance at the end of the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Investments in Real Estate Ventures Asset Acquisition, Consideration Transferred, Investment In Real Estate Joint Ventures Asset Acquisition, Consideration Transferred, Investment In Real Estate Joint Ventures Buildings, improvements and other intangibles Building and Building Improvements [Member] 2031 Long-Term Debt, Maturity, Year Eight Long-Term Debt, Maturity, Year Eight Issuance of common stock upon the exercise of options Stock Issued During Period, Value, Stock Options Exercised Number of stores owned by joint ventures, in operation Number of Stores Owned by Joint Ventures, In Operation Number of Stores Owned by Joint Ventures, In Operation Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Extinguishment of Debt, Type [Domain] Extinguishment of Debt, Type [Domain] Net income attributable to common stockholders Net income attributable to common stockholders Net Income (Loss) Derivative Contract [Domain] Derivative Contract [Domain] 2025 Finance Lease, Liability, to be Paid, Year Two Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Company Selected Measure Name Company Selected Measure Name Leases Lessee, Operating Leases [Text Block] ESS-CA TIVS JV LP ESS-CA TIVS JV LP [Member] ESS-CA TIVS JV LP Liabilities, Noncontrolling Interests and Equity: Liabilities and Equity [Abstract] Repurchase of common stock, net of offering costs Stock Repurchased During Period, Value Federal funds rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Net non-lease real estate assets SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net Issuance of common stock upon the exercise of options (in shares) Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Gain (loss) recognized in OCI Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period “At the market” equity program At The Market Equity Distribution Agreement [Member] At The Market Equity Distribution Agreement [Member] Exercise Price Range [Domain] Exercise Price Range [Domain] Intangible assets, amortization period Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Operating and finance lease, extension term Lessee, Lease, Renewal Term Lessee, Lease, Renewal Term Other Commitments [Table] Other Commitments [Table] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract] Stock issued for redemption (in shares) Stock Issued During Period, Shares, Redemption Of Noncontrolling Interest Stock Issued During Period, Shares, Redemption Of Noncontrolling Interest Name Measure Name Name Forgone Recovery, Individual Name Operating facilities Operating Facilities [Member] Operating Facilities [Member] Goodwill Goodwill Gain on real estate transactions Gains (Losses) On Real Estate Transactions And Earn Out From Prior Acquisition And Sale Of Other Assets Gains losses on real estate transactions and earn out from prior acquisition and sales of other assets Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Asset Acquisition [Domain] Asset Acquisition [Domain] Measurement Basis [Axis] Measurement Basis [Axis] Underlying Securities Award Underlying Securities Amount Fair Value Measurement [Domain] Fair Value Measurement [Domain] SmartStop Self Storage REIT Inc Preferred Stock SmartStop Self Storage REIT Inc Series A Convertible Preferred Stock [Member] SmartStop Self Storage REIT Inc Series A Convertible Preferred Stock [Member] Unsecured notes payable Unsecured Loan With Bank [Member] Unsecured Loan With Bank [Member] Noncontrolling interests Asset Acquisition, Noncontrolling Interests Asset Acquisition, Noncontrolling Interests Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Repayment of receivable with Operating Partnership units pledged as collateral Noncontrolling Interest, Repayment Of Receivable With Operating Partnership Units Pledged As Collateral Noncontrolling Interest, Repayment Of Receivable With Operating Partnership Units Pledged As Collateral Acquisition of real estate assets and improvements Payments to Acquire Real Estate Schedule of Real Estate Properties [Table] Schedule of Real Estate Properties [Table] Undiscounted Cash Flows on an Annual Basis, Operating Leases Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Loan Assumed Noncash or Part Noncash Acquisition, Debt Assumed Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Schedule of Fair Value of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Product and Service [Domain] Product and Service [Domain] Other Performance Measure, Amount Other Performance Measure, Amount Total cash flows for lease liability measurement Cash Paid For Operating Activities, Lessee Cash Paid For Operating Activities, Lessee Lease Costs Lease, Cost [Table Text Block] Issuance of Operating Partnership units in conjunction with acquisitions Noncontrolling Interest, Increase From Acquisitions Noncontrolling Interest, Increase From Acquisitions Dispositions and other SEC Schedule, 12-28, Real Estate Companies, Investment In Real Estate, Accumulated Depreciation, Investment In Real Estate Sold And Other Deductions SEC Schedule, 12-28, Real Estate Companies, Investment In Real Estate, Accumulated Depreciation, Investment In Real Estate Sold And Other Deductions Number of Stores Equity Method Investment, Number Of Stores Equity Method Investment, Number Of Stores OP units outstanding (in units) Units of Partnership Interest, Amount Real Estate Assets and Sales Real Estate, Policy [Policy Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Interest expense Interest Expense Accounts payable and accrued expenses Capital Expenditures Incurred but Not yet Paid State State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract] Intangible assets - other Finite-Lived Intangible Assets Acquired Outstanding at the beginning of period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Fixed priority return on preferred OP units, stated return rate Noncontrolling Interest In Preferred Operating Partnership Units Fixed Priority Return Stated Rate Of Return Represents the fixed priority return, as a percent, of preferred operating partnership units attributable to noncontrolling preferred unit holders on which the fixed priority return is granted. Trading Arrangement: Trading Arrangement [Axis] Use of Estimates Use of Estimates, Policy [Policy Text Block] Acquisitions of real estate assets Noncash Or Part Noncash Acquisition Net Real Estate Assets Acquired [Abstract] Noncash Or Part Noncash Acquisition Net Real Estate Assets Acquired [Abstract] Net income allocated to Preferred Operating Partnership noncontrolling interests Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity File Number Entity File Number Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Number of stores acquired Equity Method Investments, Number Of Stores Acquired Equity Method Investments, Number Of Stores Acquired 2026 Long-Term Debt, Maturity, Year Three Other liabilities - Cash flow hedge swap agreements Liability derivatives Interest Rate Cash Flow Hedge Liability at Fair Value Number of main components of economic risk Economic Risk Number Of Components Represents the number of components of economic risk. Real Estate [Abstract] Real Estate [Abstract] Auditor Firm ID Auditor Firm ID Amortization Expense Amortization of Intangible Assets Entity Shell Company Entity Shell Company Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Restatement Determination Date Restatement Determination Date Redemption of noncontrolling interests (in shares) Redemption of noncontrolling interests (in shares) Minority Interest, Decrease From Redemptions, Shares Decrease in noncontrolling interests as a result of the redemption of Operating Partnership units in exchange for common shares. Noncontrolling interests in Operating Partnership Noncontrolling Interest, Increase (Decrease) From Redemptions Of Operating Partnership Units Noncontrolling Interest, Increase (Decrease) From Redemptions Of Operating Partnership Units Other liabilities Increase (Decrease) in Other Operating Liabilities Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash, cash equivalents, and restricted cash, beginning of the period Cash, cash equivalents, and restricted cash, end of the period Cash, cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities Captive insurance subsidiary Deferred Tax Assets Tax Deferred Captive Insurance Subsidiary The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from captive insurance subsidiary, which can only be deducted for tax purposes when actual losses are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Variable lease cost Variable Lease, Cost Operating lease cost Operating Lease, Cost Weighted average number of shares Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Common stock, issued (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Issued Fixed rate notes receivable Notes Receivable, Fair Value Disclosure Released (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Net proceeds from sale of stock Sale of Stock, Consideration Received on Transaction 2027 Long-Term Debt, Maturity, Year Four Redemption of Operating Partnership units held by noncontrolling interests for common stock Redemption Of Operating Partnership Units Held By Noncontrolling Interests For Common Stock [Abstract] Redemption Of Operating Partnership Units Held By Noncontrolling Interests For Common Stock [Abstract] Number of joint venture stores purchased Equity Method Investment, Number Of Store Acquired Equity Method Investment, Number Of Store Acquired Unrecognized compensation cost, period of recognition Term over which compensation cost recognized (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Noncontrolling Interest Represented By Preferred Operating Partnership Units Noncontrolling Interests In Operating Partnership and Other Noncontrolling Interests Noncontrolling Interest Disclosure [Text Block] Comprehensive income attributable to common stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Notes Payable Notes Payable to Banks [Member] Debt securities, extension term Debt Securities Held To Maturity, Extension Term Debt Securities Held To Maturity, Extension Term HF10 Life Storage HHF Wasatch Holdings LLC Life Storage HHF Wasatch Holdings LLC [Member] Life Storage HHF Wasatch Holdings LLC Weighted average interest rate, variable debt Long-Term Debt, Percentage Bearing Variable Interest, Percentage Rate Short-term lease cost Short-Term Lease, Cost Issuance of common stock in conjunction with acquisitions Stock Issued During Period, Value, Acquisitions Entity Address, Address Line One Entity Address, Address Line One Fixed priority return on preferred OP units, amount Noncontrolling Interest In Preferred Operating Partnership Units Fixed Priority Return Amount Represents the carrying amount of preferred operating partnership units attributable to noncontrolling preferred unit holders on which the fixed priority return is granted. Receivable Type [Axis] Receivable Type [Axis] HF6 191 V Life Storage Holdings LLC HF6 191 V Life Storage Holdings LLC [Member] HF6 191 V Life Storage Holdings LLC Ownership interest held by entity (as a percent) Subsidiary, Ownership Percentage, Parent Real estate assets, estimated useful life Asset Acquisition, Real Estate Assets, Estimated Useful Life Asset Acquisition, Real Estate Assets, Estimated Useful Life 2024 Finance Lease, Liability, to be Paid, Year One Fair Value of Financial Instruments [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] 2027 Lessee, Operating And Finance Lease, Liability, Payments, Due Year Four Lessee, Operating And Finance Lease, Liability, Payments, Due Year Four Interest or penalties related to uncertain tax provisions Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 2030 Long-Term Debt, Maturity, Year Seven Long-Term Debt, Maturity, Year Seven Liquidation value (in dollars per share) Noncontrolling Interest In Preferred Operating Partnership Units Liquidation Value Per Unit Represents the liquidation value per unit of preferred operating partnership units. Income Statement [Abstract] Income Statement [Abstract] Issuance of common stock, net of offering costs (in shares) Stock Issued During Period, Shares, New Issues Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Accrued liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Expected tax at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Preferred OP Units Schedule of Other Ownership Interests [Table Text Block] Proceeds from sale of real estate assets Proceeds from Sale of Other Real Estate OP Units issued in conjunction with acquisitions (in shares) Noncontrolling Interest, Operating Partnership Units Issued With Acquisition Noncontrolling Interest, Operating Partnership Units Issued With Acquisition Other Commitments [Domain] Other Commitments [Domain] Joint venture investment Equity Method Investments Minimum shares issued for each PSU (in shares) Share-based Compensation By Share Based Payment Award, Minimum Shares Issued Per Performance Stock Unit Share-based Compensation By Share Based Payment Award, Minimum Shares Issued Per Performance Stock Unit Real Estate Assets Real Estate Disclosure [Text Block] Financial Instrument [Axis] Financial Instrument [Axis] Investment, preferred dividend rate Preferred Stock Investment, Dividend Rate Preferred Stock Investment, Dividend Rate Real estate assets, net Asset Acquisition, Real Estate Assets, Net Asset Acquisition, Real Estate Assets, Net Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Advertising Costs Advertising Cost [Policy Text Block] Total Shareholder Return Amount Total Shareholder Return Amount Options exercisable (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable Repurchase of common stock Payments for Repurchase of Common Stock Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Property Acquisitions and Dispositions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Tax credits/true-up Income Tax Reconciliation Tax Credits Adjustments Income Tax Reconciliation Tax Credits Adjustments Segments [Domain] Segments [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Accumulated deficit Retained Earnings (Accumulated Deficit) Exercise Price Range [Axis] Exercise Price Range [Axis] Accrual of interest income added to principal of debt securities and notes receivable Noncash Interest Income Noncash Interest Income HF5 Life Storage-HIERS Storage LLC Life Storage-HIERS Storage LLC [Member] Life Storage-HIERS Storage LLC Leases [Abstract] Leases [Abstract] Other Commitments [Line Items] Other Commitments [Line Items] Investments in Debt Securities and Bridge Loans Receivable Schedule Of Investments In Debt Securities And Financing Receivables [Table Text Block] Schedule Of Investments In Debt Securities And Financing Receivables CT CONNECTICUT Entity Address, State or Province Entity Address, State or Province Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Interest purchased, number of unconsolidated joint ventures Equity Method Investments, Number Of Investments Purchased Equity Method Investments, Number Of Investments Purchased Total Finance Lease, Liability, to be Paid CO COLORADO Other receivables Other Receivables CA CALIFORNIA Total Notes Payable Interest expense Interest Expense, Excluding Amortization Of Debt Discount (Premium) Interest Expense, Excluding Amortization Of Debt Discount (Premium) Miscellaneous Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Net Liabilities/ (Assets) Assumed Asset Acquisition, Consideration Transferred, Other Assets Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-Maturity Securities [Line Items] Class of Stock [Domain] Class of Stock [Domain] Earnings for basic computations Net Income (Loss) Available to Common Stockholders, Basic Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Total provision Effective Income Tax Rate Reconciliation, Percent Operating lease liabilities Lease liabilities Operating Lease, Liability Noncontrolling interest, increase from subsidiary issuance Noncontrolling Interest, Increase from Subsidiary Equity Issuance Asset Acquisition [Axis] Asset Acquisition [Axis] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] AZ ARIZONA Redemption period Preferred Stock, Redemption Period Preferred Stock, Redemption Period Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Accounts payable, accrued expenses and other liabilities Asset Acquisition, Accounts Payable, Accrued Expenses And Other Liabilities Asset Acquisition, Accounts Payable, Accrued Expenses And Other Liabilities Matching contributions made by the entity during the period Defined Contribution Plan, Cost All Executive Categories All Executive Categories [Member] Miscellaneous Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Tenant reinsurance Tenant Reinsurance Expense The expense in the period incurred with respect to the entity's tenant reinsurance program. AL ALABAMA Number of stores managed for third parties Number Of Real Estate Properties Franchisees And Others The number of real estate properties owned by franchisees and other third parties as of the balance sheet date. Debt Disclosure [Abstract] Debt Disclosure [Abstract] Number of reportable segments Number of Reportable Segments Earnings per common share Earnings Per Share [Abstract] Corporate Office And Call Center Lease Corporate Office And Call Center Lease [Member] Corporate Office And Call Center Lease [Member] Common stock, $0.01 par value, 500,000,000 shares authorized, 211,278,803 and 133,921,020 shares issued and outstanding at December 31, 2023 and 2022, respectively Common Stock, Value, Issued Other corporate assets Other Corporate Assets [Member] Other Corporate Assets [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Maximum shares issued for each PSU (in shares) Share-based Compensation By Share Based Payment Award, Maximum Shares Issued Per Performance Stock Unit Share-based Compensation By Share Based Payment Award, Maximum Shares Issued Per Performance Stock Unit GA GEORGIA Senior Notes Senior Notes [Member] Redemption of Operating Partnership units for cash Cash Portion Of Redemption Of Operating Partnership Units Cash Portion Of Redemption Of Operating Partnership Units Undiscounted Cash Flows on an Annual Basis, Financing Leases Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Receivables, net Accounts Receivable, after Allowance for Credit Loss Restricted cash included in other assets Restricted cash Restricted Cash All Individuals All Individuals [Member] Cash paid for amounts included in the measurement of lease liabilities Cash Flow, Operating Activities, Lessee [Abstract] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Entity Filer Category Entity Filer Category FL FLORIDA Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Investment in debt securities Payments to Acquire Held-to-Maturity Securities PRISA Self Storage LLC Prisa Self Storage LLC [Member] Prisa Self Storage LLC [Member] Number of sales agents Number Of Sales Agents Number Of Sales Agents Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Statement [Table] Statement [Table] Current Fiscal Year End Date Current Fiscal Year End Date Share repurchase program, aggregate value Stock Repurchase Program, Authorized Amount Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Proceeds from sale of real estate assets and investments in real estate ventures Proceeds from Sale, Real Estate, Held-for-Investment Number of properties whereby leases have been assumed at rates lower than the current market rates Number Of Properties Related To Ground Leases Assumed By The Entity At Rates Lower Than Current Market Rates Represents the number of properties related to ground leases, where the leases were assumed by the entity at rates that were lower than the current market rates for similar leases. Schedule of Reconciliation of Statutory Income Tax Provisions to the Effective Income Tax Provisions Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Life Storage Merger real estate assets Life Storage Merger Real Estate Assets [Abstract] Life Storage Merger Real Estate Assets Finance Lease Liability Noncash or Part Noncash Acquisition, Finance Lease Liability Noncash or Part Noncash Acquisition, Finance Lease Liability Unrecognized tax benefits Unrecognized Tax Benefits Purchase of remaining equity interest in existing consolidated joint venture Adjustments To Additional Paid In Capital, Purchase of Remaining Equity Interest in Consolidated Joint Venture Adjustments To Additional Paid In Capital, Purchase of Remaining Equity Interest in Consolidated Joint Venture PEO Name PEO Name Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Base rate Base Rate [Member] Number of extensions available Line Of Credit Facility, Number Of Extensions Available Line Of Credit Facility, Number Of Extensions Available Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Number of stores disposed of Number Of Stores Disposed Number Of Stores Disposed Stock compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Maximum amount of insurance coverage Tenant Reinsurance Policy Maximum Amount Of Insurance Coverage Represents the maximum amount of insurance coverage under the tenant reinsurance policy. Derivative, termination value Derivative, Termination Value Derivative, Termination Value Percentage of all distributions to stockholders which qualified as a return of capital Percentage Of All Distributions To Stockholders Which Classifies As Return Of Capital Represents the percentage of all distributions to stockholders which qualifies as a return of capital. DESCRIPTION OF BUSINESS Nature of Operations [Text Block] Operating and Finance lease right-of-use assets Deferred Tax Liabilities, Right-Of-Use Asset Deferred Tax Liabilities, Right-Of-Use Asset Fixed Rate Debt Instrument, Interest Rate, Stated Percentage Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Preferred Units by Name [Axis] Preferred Units by Name [Axis] Prepaid expenses and deposits Prepaid Expense And Deposits Prepaid Expense And Deposits Total Extra Space Storage Inc. stockholders' equity Equity, Attributable to Parent Credit Line 2 Second Credit Line [Member] Second Credit Line [Member] Total tax expense State and Local Income Tax Expense (Benefit), Continuing Operations Shares exchanged (in shares) Debt Securities, Held To Maturity, Number Of Shares, Exchanged Debt Securities, Held To Maturity, Number Of Shares, Exchanged Shares exchanged, value (in dollars) Debt Securities, Held To Maturity, Number Of Shares, Exchanged, Value Debt Securities, Held To Maturity, Shares Exchanged, Value Total Lessee, Operating And Finance Lease, Liability, Payments, Due Lessee, Operating And Finance Lease, Liability, Payments, Due Restricted Stock Restricted Stock [Member] Tranche 8 Term Loan Facility Tranche 8 Term Loan Facility [Member] Tranche 8 Term Loan Facility Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Store Count SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Number of Stores SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Number of Stores DC DISTRICT OF COLUMBIA Expected term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Storage Portfolio IV JV LLC Storage Portfolio IV JV LLC [Member] Storage Portfolio IV JV LLC Fixed rate notes payable Long-Term Debt, Percentage Bearing Fixed Interest, Amount Number of votes, common stockholder rights Common Stock Voting Rights Votes Number Represents the number of votes holders of common stock are entitled regarding all matters submitted to a vote of stockholders. Acquisition of real estate assets Real Estate Additions, Portion Not Yet Paid Real Estate Additions, Portion Not Yet Paid Commitment to acquire stores with joint venture partners Commitment To Acquire Retail Space With Joint Venture Partners [Member] Commitment To Acquire Retail Space With Joint Venture Partners [Member] Federal Federal Income Tax Expense (Benefit), Continuing Operations [Abstract] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Finance lease cost: Finance Lease, Cost1 [Abstract] Finance Lease, Cost1 [Abstract] Amortization amount of excess purchase price included in equity earnings Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Redemption of units for stock Redemption Of Units For Common Stock [Member] Redemption Of Units For Common Stock [Member] Cash Paid Payments to Acquire Productive Assets Disposal Group Classification [Domain] Disposal Group Classification [Domain] Nets asset acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Schedule of Information Relating to Gain (Loss) Recognized on Swap Agreements Derivative Instruments, Gain (Loss) [Table Text Block] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Average period that a tenant is expected to utilize the facility Finite-Lived Intangible Asset, Useful Life District Office Lease District Office Lease [Member] District Office Lease [Member] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Four Balance at the beginning of the period (in dollars per share) Balance at the end of the period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Purchase price Payments to Acquire Real Estate and Real Estate Joint Ventures Compensation expense related to share-based awards Share-Based Payment Arrangement, Noncash Expense Consolidated VIEs, number of stores Variable Interest Entity, Number Of Stores Variable Interest Entity, Number Of Stores Development and redevelopment of real estate assets Payments to Develop Real Estate Assets Return of investment in unconsolidated real estate ventures Return Of Investment Real Estate Ventures Distributions that represent a return of original investment from real estate ventures. City Area Code City Area Code Product and Service [Axis] Product and Service [Axis] Finance Lease, Liability, Statement of Financial Position [Extensible List] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Summary of Company's Employee and Director Share Grant Activity Schedule of Nonvested Share Activity [Table Text Block] Construction in Progress/Undeveloped Land Construction In Progress And Undeveloped Land [Member] Construction In Progress And Undeveloped Land [Member] Value of units issued Value of Equity Issued Real Estate Property Asset Acquisition, Consideration Transferred, Equity Interest Issued Or Issuable Real Estate Property Asset Acquisition, Consideration Transferred, Equity Interest Issued Or Issuable Equity method ownership percentage Equity Ownership % Equity Method Investment, Ownership Percentage Document Fiscal Year Focus Document Fiscal Year Focus Geographical [Domain] Geographical [Domain] Weighted-Average Grant-Date Fair Value Weighted-Average Grant-Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Operating lease, original lease term Lessee, Operating Lease, Term of Contract Redemption of Common Operating Partnership Units Noncontrolling Interest Policy [Policy Text Block] Noncontrolling Interest Policy [Text Block] Redemption of Preferred OP units for cash Cash Portion Of Redemption Of Preferred Operating Partnership Units The amount of cash paid upon the redemption of Preferred Operating Partnership Units. Number of stores sold Number of Stores Sold Number of stores purchased. Gross carrying amount - Total Balance at beginning of year Balance at end of year SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Gross Exercise price range, lower limit (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit LA LOUISIANA Summary of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Exercise Price Award Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] NexPoint Preferred Stock NexPoint Preferred Stock [Member] NexPoint Preferred Stock Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] KY KENTUCKY Consideration transferred Equity Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable KS KANSAS Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Net income Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Income taxes paid Income Taxes Paid, Net Issuance of common stock in connection with share based compensation Shares Issued, Value, Share-Based Payment Arrangement, before Forfeiture Developed technology Developed Technology Rights [Member] ID IDAHO Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) Total liabilities, noncontrolling interests and equity Liabilities and Equity OP units Operating Partnership Units [Member] Operating Partnership Units Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Ownership [Domain] Ownership [Domain] Risk-free rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Remaining amortization period Finite-Lived Intangible Assets, Remaining Amortization Period Real estate assets - operating lease right-of-use assets Operating Lease, Right-of-Use Asset Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Net income for diluted computations Net Income (Loss) Available to Common Stockholders, Diluted Arrangement Duration Trading Arrangement Duration Investment Equity Method Investment, Aggregate Cost HI HAWAII Entity Address, City or Town Entity Address, City or Town Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Schedule of Financial Information of Business Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Debt securities, dividend rate Debt Securities Held To Maturity, Dividend Rate Debt Securities Held To Maturity, Dividend Rate Vested Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Series B Units Series B Units [Member] Series B Units [Member] Distributions from unconsolidated real estate ventures Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Fair Value Disclosures Fair Value of Financial Instruments, Policy [Policy Text Block] Share repurchase program, remaining authorization value Stock Repurchase Program, Remaining Authorized Repurchase Amount Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Redemption of noncontrolling interests Redemption of noncontrolling interests for cash Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Termination Date Trading Arrangement Termination Date Land Initial Cost SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land Common stock, authorized (in shares) Common Stock, Shares Authorized Debt securities, period after which preferred dividends increase annually Debt Securities Held To Maturity, Period After Which Preferred Dividends Increase Annually Debt Securities Held To Maturity, Period After Which Preferred Dividends Increase Annually IN INDIANA IL ILLINOIS Maximum number of preferred OP units converted prior to the maturity date of the loan (in shares) Noncontrolling Interest Conversion Of Preferred Operating Partnership Units Before Maturity Of Loan Maximum Represents the maximum number of preferred operating partnership units that can be converted by noncontrolling holders of preferred units before maturity date of the loan. Contributions from noncontrolling interests Proceeds from Noncontrolling Interests Schedule of Equity in Earnings of Unconsolidated Real Estate Ventures Schedule Of Equity Method Investments Income (Loss) [Table Text Block] Tabular disclosure of the entity's equity in earnings of the unconsolidated joint ventures accounted for under the equity method of investment. WICNN JV LLC And GFN JV, LLC WICNN JV LLC And GFN JV, LLC [Member] WICNN JV LLC And GFN JV, LLC OK OKLAHOMA OH OHIO $65.36 - $65.36 Exercise Price Range One [Member] Exercise Price Range One [Member] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Notes Receivable - Bridge Loans Bridge Loan [Member] Commitment to acquire stores Commitment To Acquire Stores [Member] Commitment To Acquire Stores Changes In Equity And Comprehensive Income [Table] Changes In Equity And Comprehensive Income [Table] Changes In Equity And Comprehensive Income [Table] Estimated amount of unrealized gains (losses) expected to be reclassified as interest expense in next fiscal year Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Derivative [Line Items] Derivative [Line Items] Award Timing Disclosures [Line Items] NY NEW YORK NV NEVADA Less: comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Fixed liquidation value (in shares) Noncontrolling Interest In Preferred Operating Partnership Units, Fixed Liquidation Value, Shares Noncontrolling Interest In Preferred Operating Partnership Units, Fixed Liquidation Value, Shares Other Commitments [Axis] Other Commitments [Axis] NM NEW MEXICO Changes In Equity And Comprehensive Income [Line Items] Changes In Equity And Comprehensive Income [Line Items] Changes In Equity And Comprehensive Income [Line Items] Ten day average closing stock price (in dollars per share) Common Stock Average Closing Market Price The average closing market price of the entity's common stock. Number of properties to be acquired Number Of Real Estate Properties To Be Acquired Number Of Real Estate Properties To Be Acquired PA PENNSYLVANIA Income Taxes Income Tax, Policy [Policy Text Block] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Three Insider Trading Arrangements [Line Items] OR OREGON Outstanding at the end of the period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Entity Registrant Name Entity Registrant Name Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] HF2 Sovran HHF Storage Holdings II LLC HF2 Sovran HHF Storage Holdings II LLC [Member] HF2 Sovran HHF Storage Holdings II LLC Other assets Increase (Decrease) in Other Operating Assets MI MICHIGAN 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Two MD MARYLAND Adjustment to Compensation, Amount Adjustment to Compensation Amount ME MAINE MA MASSACHUSETTS Auditor Name Auditor Name Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Net real estate assets: SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Dividend rate, percentage Preferred Stock, Dividend Rate, Percentage Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Exercisable at the end of the period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Noncontrolling interest in consolidated joint ventures Noncontrolling Interest, Increase From Transactions With Other Noncontrolling Interests, Net Noncontrolling Interest, Increase From Transactions With Other Noncontrolling Interests, Net Entity Central Index Key Entity Central Index Key Compensation cost Share-Based Payment Arrangement, Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Intangible assets - other Finite-Lived Intangible Assets, Gross NJ NEW JERSEY Deferred financing costs Payments of Financing Costs NH NEW HAMPSHIRE Name Trading Arrangement, Individual Name NC NORTH CAROLINA Tenant Reinsurance Tenant Reinsurance [Member] Tenant Reinsurance [Member] HF5 Life Storage-HIERS Storage LLC HF5 Life Storage-HIERS Storage LLC [Member] HF5 Life Storage-HIERS Storage LLC Issuance of common stock, net of offering costs Stock Issued During Period, Value, New Issues Accumulated Depreciation Balance at beginning of year Balance at end of year SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation Management fees and other income Property management fees and other income Revenue from Contract with Customer, Excluding Assessed Tax Entity [Domain] Entity [Domain] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag MS MISSISSIPPI Legal Entity [Axis] Legal Entity [Axis] MN MINNESOTA MO MISSOURI Preferred Operating Partnership units Conversion of Stock, Amount Converted, Net Conversion of Stock, Amount Converted, Net Number of wholly owned stores acquired Asset Acquisition, Number Of Wholly Owned Stores Acquired Asset Acquisition, Number Of Wholly Owned Stores Acquired Weighted average discount rate - operating leases Operating Lease, Weighted Average Discount Rate, Percent Unsecured senior notes, net Senior Notes 2026 Lessee, Operating And Finance Lease, Liability, Payments, Due Year Three Lessee, Operating And Finance Lease, Liability, Payments, Due Year Three Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Real estate assets, net Establishment Of Finance Lease Asset Establishment Of Finance Lease Asset Common OP Units Common OP Units [Member] Common OP Units SC SOUTH CAROLINA Weighted average remaining lease term - finance leases (years) Finance Lease, Weighted Average Remaining Lease Term Net deferred income tax liabilities Deferred Tax Liabilities, Net Diluted (in shares) Average number of common shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Investments in debt securities and notes receivable Investments in debt securities and notes receivable Debt Securities, Held To Maturity And Financing Receivable, After Allowance For Credit Loss, And Interest Receivable Debt Securities, Held To Maturity And Financing Receivable, After Allowance For Credit Loss, And Interest Receivable Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Number of stores acquired Number of Stores Number Of Real Estate Properties Acquired Represents the number of real estate properties acquired. Trade name Indefinite-Lived Intangible Assets Acquired Reduction of noncontrolling interest for note receivable Note Receivable, Reduction Of Noncontrolling Interests Note Receivable, Reduction Of Noncontrolling Interests Company Selected Measure Amount Company Selected Measure Amount TN TENNESSEE Options outstanding, weighted average remaining contractual life Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items] Debt Securities, Held-to-maturity [Table] Debt Securities, Held-to-Maturity [Table] Total assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Thereafter Finance Lease, Liability, to be Paid, after Year Five Number of states in which storage facilities are located Number of States in which Entity Operates 2028 Long-Term Debt, Maturity, Year Five Operating cash outflows for finance lease payments Finance Lease, Interest Payment on Liability Released (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Non-NEOs Non-NEOs [Member] Income before equity in earnings and dividend income from unconsolidated real estate entities and income tax expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Non-PEO NEO Non-PEO NEO [Member] Issuance of OP and Preferred OP units in conjunction with business combination Issuance Of OP And Preferred OP Units In Conjunction With Business Combinations [Abstract] Issuance Of OP And Preferred OP Units In Conjunction With Business Combinations Adjustment to Compensation: Adjustment to Compensation [Axis] Equity interests issued Equity interests issued Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Debt Instrument [Line Items] Debt Instrument [Line Items] Basic (in shares) Average number of common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Percentage of company's matching contributions of first 3 percent of employee's compensation Percentage of Matching Contribution Made By Company For First Three Percent of Participants Compensation Represents the percentage of the company's matching contributions of first 3 percent of employee's compensation. Fixed assets Deferred Tax Liabilities, Property, Plant and Equipment Revenues: Revenues [Abstract] Intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested Restricted stock grants cancelled (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Property operations Cost of Revenue RI RHODE ISLAND Net operating real estate assets Net Operating Real Estate Assets The carrying amount of real estate assets including land, buildings, improvements, intangible assets and intangible lease rights, net of accumulated depreciation and amortization. Operating Partnership Common Operating Partnership [Member] Common Operating Partnership [Member] Notes receivable, percentage of mortgage receivables notes Notes Receivable, Mortgage Receivable, Percentage Notes Receivable, Mortgage Receivable, Percentage Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Statement [Line Items] Statement [Line Items] Vested and Expected to Vest (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Schedule Summarizing Terms of Entity's Derivative Financial Instruments Schedule of Derivative Instruments [Table Text Block] Operating lease liabilities Establishment Of Operating Lease Liability Establishment Of Operating Lease Liability Noncontrolling interests in Operating Partnership, net and other noncontrolling interests Noncontrolling Interest in Operating Partnerships