Derivative Instrument Detail [Abstract] Derivative [Table] Derivative [Table] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest Rate Swap Interest Rate Swap [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Derivative [Line Items] Derivative [Line Items] Amount of (loss) gain recognized in AOCI on derivatives Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Amount of gain reclassified from AOCI into earnings under “Interest expense” Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Total interest expense presented in the Consolidated Statement of Operations in which the effects of cash flow hedges are recorded (line item “Interest expense”) Interest Expense Increase in interest expense Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Earnings Per Share [Abstract] Earnings Per Share Earnings Per Share [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Number of real estate properties Number of Real Estate Properties Area of real estate property (square feet) Area of Real Estate Property Number of real estate properties additionally managed Number Of Real Estate Properties Additionally Managed Number of real estate properties additionally managed but not owned. Area of real estate property additionally managed Area Of Real Estate Property Additionally Managed Area of real estate property managed Fair Value Disclosures [Abstract] Assets and Liabilities Measured at Fair Vale on a Recurring Basis by Level within Fair Value Hierarchy Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Carrying Value and Estimated Fair Value of Notes Payable Fair Value, by Balance Sheet Grouping [Table Text Block] Debt Disclosure [Abstract] October 1, 2019 - December 31, 2019 Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 2020 Long-term Debt, Maturities, Repayments of Principal in Year Two 2021 Long-term Debt, Maturities, Repayments of Principal in Year Three 2022 Long-term Debt, Maturities, Repayments of Principal in Year Four 2023 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Total Long-term Debt, Gross Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Equity [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series C Preferred Stock Series C Preferred Stock [Member] Series 1 CPOP Units Series 1 CPOP Units [Member] Series 1 CPOP Units [Member] Preferred Units by Name [Axis] Preferred Units by Name [Axis] Preferred Units, Class [Domain] Preferred Units, Class [Domain] Series A Preferred Units Series A Preferred Units [Member] Series A Preferred Units [Member] Series B Preferred Units Series B Preferred Units [Member] Series B Preferred Units [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] 1515 15th Street, Los Angeles, California 1515 15th Street [Member] 1515 15th Street [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Acquisition Purchase Price Acquisition Purchase Price The contractual price of a business combination or asset acquisition Acquisition, preferred units issued (in units) Acquisition, Preferred Units, Issued Acquisition, Preferred Units, Issued Preferred Unit, Distribution Rate, Percentage Preferred Stock, Dividend Rate, Percentage Issuance of 4.43937% cumulative redeemable convertible preferred units Noncontrolling Interest, Increase from Subsidiary Equity Issuance Closing Costs for Acquisition of 1515 East 15th Street Closing Costs for Acquisition of 1515 East 15th Street Closing Costs for Acquisition of 1515 East 15th Street Acquisition, equity interests issued, 30-day average closing price of common stock (in dollars per share) Acquisition, Equity Interests Issued, 30-day Average Closing Price of Common Stock Acquisition, Equity Interests Issued, 30-day Average Closing Price of Common Stock Preferred stock, liquidation preference premium Preferred Stock, Liquidation Preference Premium Preferred Stock, Liquidation Preference Premium Preferred stock, liquidation preference (in dollars per share) Preferred Stock, Liquidation Preference Per Share Aggregate liquidation preference Preferred Stock, Liquidation Preference, Value Basis of Presentation and Principles of Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Investments in Real Estate Real Estate, Policy [Policy Text Block] Assets Held for Sale Real Estate Held for Development and Sale, Policy [Policy Text Block] Deferred Leasing Costs Capitalization of Internal Costs, Policy [Policy Text Block] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Derivative Instruments and Hedging Activities Derivatives, Policy [Policy Text Block] Revenue Recognition Revenue [Policy Text Block] Valuation of Receivables Receivable [Policy Text Block] Equity Based Compensation Compensation Related Costs, Policy [Policy Text Block] Equity Offering Costs Equity Offering Costs Policy [Policy Text Block] Disclosure of accounting policy for costs associated with raising equity. Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Segment Reporting Segment Reporting, Policy [Policy Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Fair Value By Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Estimate of Fair Value Measurement [Member] Estimate of Fair Value Measurement [Member] Reported Value Measurement Reported Value Measurement [Member] Fair Value By Fair Value Hierarchy Level Fair Value Hierarchy and NAV [Axis] Fair Value Measurements Fair Value Hierarchy Fair Value Hierarchy and NAV [Domain] Quoted Price in Active Markets for Identical Assets and Liabilities (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Notes payable, fair value Long-term Debt, Fair Value Carrying value Long-term Debt Investments, All Other Investments [Abstract] Tax Treatment of Acquisition [Axis] Tax Treatment of Acquisition [Axis] Tax Treatment of Acquisition [Axis] Tax Treatment of Acquisition [Domain] Tax Treatment of Acquisition [Domain] Tax Treatment of Acquisition Like Kind Exchange, Qualified Under IRS Section 1031 Like Kind Exchange, Qualified Under IRS Section 1031 [Member] Like Kind Exchange, Qualified Under IRS Section 1031 [Member] 12821 Knott Street 12821 Knott Street [Member] 12821 Knott Street [Member] 28510 Industry Drive 28510 Industry Drive [Member] 28510 Industry Drive [Member] Conejo Spectrum Business Park Conejo Spectrum Business Park [Member] Conejo Spectrum Business Park [Member] 2455 Ash Street 2455 Ash Street [Member] 2455 Ash Street [Member] 25413 Rye Canyon Road 25413 Rye Canyon Road [Member] 25413 Rye Canyon Road [Member] 1515 East 15th Street, Los Angeles, California 13890 East Nelson Avenue, Industry, California 13890 Nelson Avenue [Member] 13890 Nelson Avenue [Member] 445-449 Freedom Avenue, Orange, California 445-449 Freedom Avenue [Member] 445-449 Freedom Avenue [Member] 2270 Camino Vida Roble, Carlsbad, California 2270 Camino Vida Roble [Member] 2270 Camino Vida Roble [Member] 980 Rancheros Drive, San Marcos, California 980 Rancheros Drive [Member] 980 Rancheros Drive [Member] 1145 Arroyo Avenue 1145 Arroyo Avenue [Member] 1145 Arroyo Avenue [Member] 1150 Aviation Place 1150 Aviation Place [Member] 1150 Aviation Place [Member] 1175 Aviation Place 1175 Aviation Place [Member] 1175 Aviation Place [Member] 1245 Aviation Place 1245 Aviation Place [Member] 1245 Aviation Place [Member] 635 8th Street 635 8th Street [Member] 635 8th Street [Member] 10015 Waples Court 10015 Waples Court [Member] 10015 Waples Court [Member] 19100 Susana Road 19100 Susana Road [Member] 19100 Susana Road [Member] 15385 Oxnard Street 15385 Oxnard Street [Member] 15385 Oxnard Street [Member] 9750-9770 San Fernando Road 9750-9770 San Fernando Road [Member] 9750-9770 San Fernando Road [Member] 218 Turnbull Canyon 218 Turnbull Canyon [Member] 218 Turnbull Canyon [Member] The Merge The Merge [Member] The Merge [Member] 3340 North San Fernando Road, Los Angeles, California 3340 North San Fernando Road [Member] 3340 North San Fernando Road [Member] 5725 Eastgate Drive, San Diego, California 5725 Eastgate Drive [Member] 5725 Eastgate Drive [Member] 18115 Main Street 18115 Main Street [Member] 18115 Main Street 3150 Ana Street 3150 Ana Street [Member] 3150 Ana Street 1402 Avenida Del Oro 1402 Avenida Del Oro [Member] 1402 Avenida Del Oro 9607-9623 Imperial Highway 9607-9623 Imperial Highway [Member] 9607-9623 Imperial Highway 12200 Bellflower Boulevard 12200 Bellflower Boulevard [Member] 12200 Bellflower Boulevard Storm Parkway Storm Parkway [Member] Storm Parkway 2328 Teller Road 2328 Teller Road [Member] 2328 Teller Road Date of Acquisition Business Acquisition, Effective Date of Acquisition Rentable Square Feet Net Rentable Area Number of Buildings Number Of Buildings Acquired Number of buildings acquired. Future rentable area Future rentable area Future rentable area upon completion of construction. Buildings to be constructed Buildings To Be Constructed Buildings To Be Constructed Purchase Price Developer Escrow Holdback Purchase Price Selller Developer Escrow Holdback Amount of purchase price consideration held back in escrow to be released to seller/developer upon meeting certain development milestones. Purchase price Payments to Acquire Real Estate Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Amended 2013 Incentive Award Plan 2013 Incentive Award Plan [Member] 2013 Incentive Award Plan Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Expensed share-based compensation Share-based Payment Arrangement, Expense Capitalized share-based compensation Share-based Payment Arrangement, Amount Capitalized Total share-based compensation Share-based Payment Arrangement, Expensed and Capitalized, Amount Unrecognized compensation expense related to non-vested shares Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Weighted average remaining vesting period Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Schedule of Unvested Restricted Stock Activity Nonvested Restricted Stock Shares Activity [Table Text Block] Vesting Schedule of the Unvested Shares of Restricted Stock Outstanding Restricted Stock Awards Shares Non Vested Awards By Expected Vesting Period Table [Text Block] Tabular disclosure of the number of non-vested restricted stock awards outstanding by the period expected to vest at the date of the latest statement of financial position. Shareholders' Equity and Share-based Payments Shareholders' Equity and Share-based Payments [Text Block] Summary of the Components of Changes in Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Dispositions Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Golden Valley Golden Valley [Member] Golden Valley 6277-6289 Slauson Avenue 6277-6289 Slauson Avenue [Member] 6277-6289 Slauson Avenue 750 Manville Street 750 Manville Street [Member] 750 Manville Street [Member] 8985 Crestmar Point 8985 Crestmar Point [Member] 8985 Crestmar Point Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Common Stock Common Stock [Member] Operating Partnership Units Operating Partnership Units [Member] Operating Partnership Units Series A Preferred Stock Series A Preferred Stock [Member] Series B Preferred Stock Series B Preferred Stock [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Rentable Square Feet Disposition Sales Price Disposition Sales Price Contract sales price for dispositions of real estate Proceeds from Sale of Property Held-for-sale Proceeds from Sale of Property Held-for-sale Dividends declared per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Distributions declared (in dollars per share) Distribution Made to Limited Partner, Distributions Declared, Per Unit Dividends per share, declared (in dollars per share) Preferred Stock, Dividends Per Share, Declared Preferred Stock, Dividend Rate, Percentage Leases [Abstract] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Lease Arrangement Type Lease Arrangement, Type [Axis] Lease Arrangement Type Lease Arrangement, Type [Domain] Ground Lease Ground Lease [Member] Ground lease. Office Lease Office Lease [Member] Office lease. Range Statistical Measurement [Axis] Range Member Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Property Plant And Equipment By Type Property, Plant and Equipment, Type [Axis] Property Plant And Equipment Type Property, Plant and Equipment, Type [Domain] Ground Lease Land [Member] Office Leases Office Building [Member] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Operating Lease Fixed And Variable Lease Payments Operating Lease Fixed And Variable Lease Payments Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Excludes amount of non-cash amortization of intangible asset (liability) for above and below market leases. Operating Lease, Lease Income, Lease Payments Operating Lease, Lease Income, Lease Payments Variable lease payments Operating Lease, Variable Lease Income Ground lease expiration date Lease Expiration Date Rent adjustment term Lessee, Operating Lease, Rent Adjustment, Term Lessee, Operating Lease, Rent Adjustment, Term Rent adjustment percentage Lessee, Operating Lease, Rent Adjustment Percentage Lessee, Operating Lease, Rent Adjustment Percentage Minimum monthly rent expense Lessee, Operating Lease, Minimum Monthly Rent Expense Lessee, Operating Lease, Minimum Monthly Rent Expense Remaining lease term Lessee, Operating Lease, Remaining Term Of Contract Lessee, Operating Lease, Remaining Term Of Contract Renewal term Lessee, Operating Lease, Renewal Term Lease liabilities Operating Lease, Liability Right-of-use assets Operating Lease, Right-of-Use Asset Right of use asset obtained in exchange for operating lease liability upon implementation of ASC 842 on January 1, 2019 Right Of Use Asset Obtained In Exchange for Operating Lease Liability Upon Implementation of ASC 842 on January 1, 2019 Amount of increase in right-of-use asset obtained in exchange for operating lease liability upon adoption of the lease standard (ASC 842) on January 1, 2019. Operating Leases, Rent Expense Operating Leases, Rent Expense Lessor Operating Leases Lessor, Operating Leases [Text Block] Lessee Operating Leases Lessee, Operating Leases [Text Block] Debt Instrument [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] Debt Instrument [Line Items] Principal amount Less: unamortized discount and deferred loan costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Carrying value Performance Units Performance Shares [Member] Performance period Share Based Compensation Arrangement By Share Based Payment Award, Performance Period Share Based Compensation Arrangement By Share Based Payment Award, Performance Period of Award Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Partnership Interest Partnership Interest [Member] Noncontrolling Interests Noncontrolling Interest [Member] Total Stockholders’ Equity Parent [Member] Noncontrolling Interest [Axis] Noncontrolling Interest [Axis] Noncontrolling Interest [Axis] Noncontrolling Interest [Domain] Noncontrolling Interest [Domain] [Domain] for Noncontrolling Interest [Axis] Vested LTIP Units Vested LTIP Units [Member] Vested LTIP Units [Member] Class of Stock [Line Items] Class of Stock [Line Items] Operating partnership units outstanding (in shares) Limited Partners' Capital Account, Units Outstanding Noncontrolling interest percentage ownership in Operating Partnership Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Conversion of units to common stock (in shares) Stock Issued During Period, Shares, Conversion of Units Conversion of units to common stock Stock Issued During Period, Value, Conversion of Units Fair Value Assets And Liabilities Measured On Recurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Inputs, Level 1, 2 and 3 [Member] Fair Value, Inputs, Level 1, 2 and 3 [Member] Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Interest rate swap asset Interest Rate Derivative Assets, at Fair Value Interest Rate Swap Liability Interest Rate Derivative Liabilities, at Fair Value Equity Stockholders' Equity Note Disclosure [Text Block] Organization Business Description and Basis of Presentation [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments And Contingencies [Table] Commitments And Contingencies [Table] Commitments and contingencies. Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilities [Member] Other Assets Other Assets [Member] Concentration Risk By Type Concentration Risk Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Concentration Risk By Benchmark Concentration Risk Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Base Rent Base Rent [Member] Base rent. Total Rental Revenues Total Rental Revenues [Member] Total Rental Revenues [Member] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments and contingencies. Estimated remediation costs Estimated Remediation Costs Estimated remediation, processing and oversight costs. Escrow deposit Escrow Deposit Holdback Escrow seller funded Holdback Escrow Seller Funded Amount placed in escrow account by seller to pay for estimated remediation costs subject to Holdback Agreement. Holdback Escrow buyer funded Holdback Escrow Buyer Funded Amount placed in escrow account by Company to pay for estimated remediation costs subject to holdback agreement. Maximum seller liability remedian costs Maximum Seller Liability Remedian Costs The maximum amount payable by seller for remediation costs. Contingent liability Business Combination, Contingent Consideration, Liability Indemnification asset Recorded Third-Party Environmental Recoveries Receivable Commitments for tenant improvements and construction work Other Commitment Cash, FDIC Insured Amount Cash, FDIC Insured Amount Number of major tenants Concentration Risk, Number of Major Customers Concentration Risk, Number of Major Customers Concentration risk, percentage Concentration Risk, Percentage Fair Value Measurements Fair Value Disclosures [Text Block] Investments in Real Estate Real Estate Disclosure [Text Block] Statement of Comprehensive Income [Abstract] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other comprehensive (loss) income: cash flow hedge adjustment Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to Rexford Industrial Realty, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] At The Market Equity Offering Program, $450 Million At The Market Equity Offering Program, $450 Million [Member] At The Market Equity Offering Program, $450 Million [Member] At The Market Equity Offering Program, $550 Million and $450 Million At The Market Equity Offering Program, $550 Million and $450 Million [Member] At The Market Equity Offering Program, $550 Million and $450 Million [Member] At The Market Equity Offering Program, $550 Million At The Market Equity Offering Program, $550 Million [Member] At The Market Equity Offering Program, $550 Million [Member] Maximum aggregate offering amount At-The-Market Aggregate Offering Amount The aggregate value of shares that may be sold from time to time in "at the market" offerings. Gross proceeds from the issuance of common stock Gross Proceeds From Issuance Of Common Stock Gross proceeds from issuance of common stock before the effect of offering costs Issuance of common stock (in shares) Stock Issued During Period, Shares, New Issues Common stock share price (in dollars per share) Shares Issued, Price Per Share Net proceeds from issuance of common stock Proceeds From Issuance Of Common Stock, Net Proceeds from the issuance of common stock net of the sales agents' fee Shares available under ATM (in shares) Common Stock, Value of Shares Available under ATM Common Stock, Value of Shares Available under At The Market Equity Offering Program Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Notes Payable Debt Disclosure [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule Of Acquired Finite Lived Intangible Asset By Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] In-place lease intangibles Leases, Acquired-in-Place [Member] Net below market tenant leases Net Above Below Market Tenant Leases [Member] Net above (below) market tenant leases. Above-market ground lease Above Market Ground Lease [Member] Above market ground lease. Acquired Finite Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Amortization of in-place lease intangibles Amortization of Intangible Assets Amortization of (below) above market lease intangibles, net Amortization of above and below Market Leases Accretion of above-market ground lease intangibles Accretion Of Above Market Ground Lease Intangible Accretion of above market ground lease intangible. Summary of Components and Significant Terms of Debt Schedule of Debt [Table Text Block] Summary of Future Minimum Debt Payments Schedule of Maturities of Long-term Debt [Table Text Block] Discontinued Operations and Disposal Groups [Abstract] Schedule of Long Lived Assets Held-for-sale [Table] Schedule of Long Lived Assets Held-for-sale [Table] Land Buildings and improvements Building and Building Improvements [Member] Tenant improvements Tenant Improvements [Member] Tenant Improvements [Member] Long Lived Assets Held-for-sale [Line Items] Long Lived Assets Held-for-sale [Line Items] Real estate held for sale Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Gross Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Gross Accumulated depreciation Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Accumulated Depreciation Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Accumulated Depreciation Real estate held for sale, net Disposal Group, Including Discontinued Operation, Property, Plant and Equipment Other assets associated with real estate held for sale Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Total assets associated with real estate held for sale, net Disposal Group, Including Discontinued Operation, Assets Tenant security deposits Disposal Group, Including Discontinued Operation, Tenant Security Deposits Disposal Group, Including Discontinued Operation, Tenant Security Deposits Other liabilities associated with real estate held for sale Disposal Group, Including Discontinued Operation, Other Liabilities Total liabilities associated with real estate held for sale, net Disposal Group, Including Discontinued Operation, Liabilities Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Preferred Stock Preferred Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Cumulative Distributions in Excess of Earnings Accumulated Distributions in Excess of Net Income [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Beginning Balance (in shares) Common Stock, Shares, Outstanding Issuance of common stock Stock Issued During Period, Value, New Issues Offering costs Offering Costs Specific incremental costs directly attributable to offering of securities. Share-based compensation (in shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Share-based compensation Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Shares acquired to satisfy employee tax withholding requirements on vesting restricted stock (in shares) Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Shares acquired to satisfy employee tax withholding requirements on vesting restricted stock Share-based Payment Arrangement, Decrease for Tax Withholding Obligation Net income Other comprehensive income (loss) Preferred stock dividends Dividends, Preferred Stock Preferred unit distributions Noncontrolling Interest, Decrease from Distributions to Noncontrolling Preferred Interest Holders Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders represented by preferred units. Common stock dividends Dividends, Common Stock Distributions Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Cumulative effect of adoption of ASC 842 Cumulative Effect on Retained Earnings, Net of Tax Ending Balance Ending Balance (in shares) Dispositions and Real Estate Held for Sale Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-02 [Member] Accounting Standards Update 2016-02 [Member] In-place lease intangibles Leases, Acquired-in-Place, Market Adjustment [Member] Above-market tenant leases Above Market Leases [Member] Below-market tenant leases Below Market Operating Leases [Member] Below market operating leases. Acquired lease intangible assets, gross Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Acquired lease intangible assets, net Finite-Lived Intangible Assets, Net Acquired lease intangible liabilities, gross Finite Lived Intangible Liability Off Market Lease Unfavorable Gross Finite lived intangible liability off market lease unfavorable gross. Accumulated accretion Finite Lived Intangible Liability Accumulated Accretion Accumulated amount of accretion of finite lived intangible liabilities. Acquired lease intangible liabilities, net Off-market Lease, Unfavorable Weighted-average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent Summary of Interest Rate Swap Agreement Schedule of Derivative Instruments [Table Text Block] Summary of Impact of Interest Rate Swaps on Consolidated Financial Statements Derivative Instruments, Gain (Loss) [Table Text Block] Offsetting Assets Offsetting Assets [Table Text Block] Offsetting Liabilities Offsetting Liabilities [Table Text Block] Schedule of Investments [Table] Schedule of Investments [Table] Schedule of Investments [Line Items] Schedule of Investments [Line Items] ASSETS Assets [Abstract] Land Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Land Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Land Buildings and improvements Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Buildings Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Buildings Tenant improvements Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Tenant Improvements Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Tenant Improvements Acquired lease intangible assets Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Lease Intangible Assets Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Acquired Lease Intangible Assets Other acquired assets Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Working Capital Assets Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Working Capital Assets Total assets acquired Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Assets Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Assets Liabilities Liabilities [Abstract] Acquired lease intangible liabilities Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed, Intangible Lease Liabilities Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed, Intangible Lease Liabilities Other assumed liabilities Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed, Working Capital Liabilities Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed, Working Capital Liabilities Total liabilities assumed Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Liabilities Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Liabilities Net assets acquired Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Net Asset Acquisition Recognized Identifiable Assets Acquired and Liabilities Assumed Net Intangible Assets [Abstract] Intangible Assets, Net (Excluding Goodwill) [Abstract] In-place lease intangibles Finite-Lived Intangible Asset, Acquired-in-Place Leases Weighted average amortization period Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Above-market lease intangibles Finite-Lived Intangible Asset, Off-market Lease, Favorable, Gross Below-market lease intangibles, weighted average amortization period Below Market Lease, Weighted Average Useful Life Below Market Lease, Weighted Average Useful Life Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] 2350-2384 Orangethorpe Avenue and 1631 Placentia Avenue 2350-2384 Orangethorpe Avenue And 1631 Placentia Avenue [Member] 2350-2384 Orangethorpe Avenue And 1631 Placentia Avenue [Member] 939 Poinsettia Avenue - Unit 301 939 Poinsettia Avenue - Unit 301 [Member] 939 Poinsettia Avenue - Unit 301 [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Date of Disposition Disposal Date Gains on sale of real estate Gains (Losses) on Sales of Investment Real Estate October 1, 2019 - December 31, 2019 Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total undiscounted lease payments Lessee, Operating Lease, Liability, Payments, Due Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total lease liabilities 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Income Statement [Abstract] REVENUES Revenues [Abstract] Rental income Operating Lease, Lease Income Management, leasing and development services Revenue from Contract with Customer, Excluding Assessed Tax Interest income Interest Income, Operating TOTAL REVENUES Revenues OPERATING EXPENSES Operating Expenses [Abstract] Property expenses Direct Costs of Leased and Rented Property or Equipment General and administrative General and Administrative Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction TOTAL OPERATING EXPENSES Operating Expenses OTHER EXPENSES Nonoperating Income (Expense) [Abstract] Acquisition expenses Acquisition Expenses Costs incurred to effect an acquisition transaction which have been expensed during the period. Such costs include advisory, legal, due diligence, and other professional fees. Interest expense TOTAL EXPENSES Other Cost and Expense, Operating NET INCOME Less: net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest NET INCOME ATTRIBUTABLE TO REXFORD INDUSTRIAL REALTY, INC. Net Income (Loss) Attributable to Parent Less: preferred stock dividends Preferred Stock Dividends, Income Statement Impact Less: earnings allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic NET INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS Net Income (Loss) Available to Common Stockholders, Basic Net income attributable to common stockholders - basic (in dollars per share) Earnings Per Share, Basic Net income attributable to common stockholders - diluted (in dollars per share) Earnings Per Share, Diluted Weighted average shares of common stock outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Weighted average shares of common stock outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] 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] Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Gain on sale of real estate Amortization of debt issuance costs Amortization of Debt Issuance Costs Amortization of discount on notes payable Amortization of Debt Discount (Premium) Equity based compensation expense Share-based Payment Arrangement, Noncash Expense Straight-line rent Straight Line Rent Change in working capital components: Increase (Decrease) in Operating Capital [Abstract] Rents and other receivables Increase (Decrease) in Accounts Receivable Deferred leasing costs Payments for Commissions Other assets Increase (Decrease) in Other Operating Assets Accounts payable, accrued expenses and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Tenant security deposits Increase (Decrease) in Security Deposits Prepaid rents Increase (Decrease) in Prepaid Rent Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Acquisition of investments in real estate Capital expenditures Payments for Capital Improvements (Payments for) return of deposits on real estate acquisitions Payments for (Proceeds from) Deposits on Real Estate Acquisitions Proceeds from sale of real estate Proceeds from Sale of Real Estate Held-for-investment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Issuance of preferred stock, net Proceeds from Issuance of Preferred Stock and Preference Stock Issuance of common stock, net Proceeds from Issuance of Common Stock Proceeds from notes payable Proceeds from Issuance of Long-term Debt Repayment of notes payable Repayments of Long-term Debt Debt issuance costs Payments of Financing Costs Dividends paid to preferred stockholders Payments of Ordinary Dividends, Preferred Stock and Preference Stock Dividends paid to common stockholders Payments of Ordinary Dividends, Common Stock Distributions paid to common unitholders Payments of Ordinary Dividends, Noncontrolling Interest Distributions paid to preferred unitholders Distribution Made to Limited Partner, Cash Distributions Paid Repurchase of common shares to satisfy employee tax withholding requirements Payment, Tax Withholding, Share-based Payment Arrangement Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Cash, cash equivalents and restricted cash, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash, end of period Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for interest (net of capitalized interest of $2,993 and $1,585 for the nine months ended September 30, 2019 and 2018, respectively) Interest Paid, Excluding Capitalized Interest, Operating Activities Supplemental disclosure of noncash transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Operating lease right-of-use assets obtained in exchange for lease liabilities upon adoption of ASC 842 on January 1, 2019 Operating lease right-of-use assets obtained in exchange for lease liabilities subsequent to January 1, 2019 Right Of Use Asset Obtained In Exchange For Operating Lease Liability Related to Lease Modification Amount of increase in right-of-use asset obtained in exchange for operating lease liability related to a lease modification subsequent to January 1, 2019. Issuance of 4.43937% cumulative redeemable convertible preferred units in connection with property acquisition Other Significant Noncash Transaction, Value of Consideration Given Accrual for capital expenditures Capital Expenditures Incurred but Not yet Paid Accrual of dividends Dividends Payable Amended and Restated 2013 Incentive Award Plan Amended and Restated 2013 Incentive Award Plan [Member] Amended And Restated 2013 Incentive Award Plan Shares that may be issued (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Common stock, shares reserved for future issuance Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance Unvested Performance Unit Distribution Sharing Percentage Unvested Performance Unit Distribution Sharing Percentage Unvested performance unit distribution sharing percentage. Statement of Financial Position [Abstract] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares outstanding (in shares) Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] $60M Term Loan $60 Million Term Loan [Member] $60 Million Term Loan $100M Term Loan Facility $100 Million Term Loan [Member] $100 Million Term Loan $225M Term Loan Facility $225 Million Term Loan Facility [Member] $225 Million Term Loan Facility $150M Term Loan Facility $150 Million Term Loan Facility [Member] $150 Million Term Loan Facility $100M Notes $100 Million Notes [Member] $100 Million Notes [Member] $125M Notes $125 Million Notes [Member] $125 Million Notes [Member] $25M Series 2019A Notes Series 2019A Guaranteed Senior Notes [Member] Series 2019A Guaranteed Senior Notes [Member] $75M Series 2019B Notes Series 2019B Guaranteed Senior Notes [Member] Series 2019B Guaranteed Senior Notes [Member] Real Estate Properties Real Estate Property Ownership [Axis] Real Estate Properties Real Estate Properties [Domain] Gilbert/La Palma Gilbert La Palma [Member] Gilbert/La Palma. Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Term Loan Term Loan [Member] Term loan. Revolving Credit Facility Revolving Credit Facility [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Fixed Rate Debt Fixed Rate Debt [Member] Fixed rate debt. Senior notes Senior Notes [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Contractual Maturity Date Debt Instrument, Maturity Date Stated Interest Rate Debt Instrument, Interest Rate, Stated Percentage Description of variable rate basis Debt Instrument, Description of Variable Rate Basis Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Effective Interest Rate Debt Instrument, Interest Rate, Effective Percentage Number of extensions Number Of Additional Extension Periods Number of additional extension periods. Extension period Debt Instrument Term Extension Period Debt instrument term extension period. Amortization period Amortization Table Period Amortization table period. Commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Number of derivative instruments Derivative, Number of Instruments Held Common Stock, Dividends, Per Share, Declared Preferred Stock, Dividends Per Share, Declared Numerator: Net Income (Loss) Attributable to Parent [Abstract] Less: Preferred stock dividends Less: Net income attributable to participating securities Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Effect of dilutive securities - performance units (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average shares of common stock outstanding - diluted (in shares) Earnings per share — Basic Earnings Per Share, Basic [Abstract] Earnings per share — Diluted Earnings Per Share, Diluted [Abstract] Summary of Acquired Lease Intangible Assets and Liabilities Schedule Of Acquired Lease Intangible Assets And Liabilities Table [Text Block] Schedule of acquired lease intangible assets and liabilities. Summary of Amortization or Accretion Recorded During the Period Related to Acquired Lease Intangibles Schedule Of Finite Lived Intangible Assets And Liabilities Amortization Accretion Expense Table [Text Block] Tabular disclosure of the amount of amortization or accretion recorded during the period related to our acquired lease intangible assets and liabilities. Computation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Interest Rate Swaps Derivative Instruments and Hedging Activities Disclosure [Text Block] Intangible Assets Intangible Assets Disclosure [Text Block] 5.875% series A cumulative redeemable preferred stock, 3,600,000 shares outstanding at September 30, 2019 and December 31, 2018 ($90,000 liquidation preference) 5.875% series B cumulative redeemable preferred stock, 3,000,000 shares outstanding at September 30, 2019 and December 31, 2018 ($75,000 liquidation preference) 5.625% series C cumulative redeemable preferred stock, 3,450,000 and zero shares outstanding at September 30, 2019 and December 31, 2018, respectively ($86,250 liquidation preference) Land Land Buildings and improvements Investment Building and Building Improvements Tenant improvements Tenant Improvements Furniture, fixtures and equipment Fixtures and Equipment, Gross Construction in progress Development in Process Total real estate held for investment Real Estate Investment Property, at Cost Accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Investments in real estate, net Real Estate Investment Property, Net Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Rents and other receivables, net Accounts Receivable, after Allowance for Credit Loss Deferred rent receivable, net Deferred Rent Receivables, Net Deferred leasing costs, net Deferred Costs, Leasing, Net Deferred loan costs, net Debt Issuance Costs, Net Acquired lease intangible assets, net Acquired indefinite-lived intangible Other Indefinite-lived Intangible Assets Other assets Other Assets Acquisition related deposits Deposits Assets Assets associated with real estate held for sale Total Assets Assets LIABILITIES & EQUITY Liabilities and Equity [Abstract] Notes payable Interest rate swap liability Accounts payable, accrued expenses and other liabilities Accounts Payable and Accrued Liabilities Dividends payable Acquired lease intangible liabilities, net Tenant security deposits Security Deposit Liability Prepaid rents Advance Rent Liabilities associated with real estate held for sale Total Liabilities Liabilities Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Rexford Industrial Realty, Inc. stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.01 par value per share, 10,050,000 and 10,000,000 shares authorized at September 30, 2019 and December 31, 2018, respectively, Preferred Stock, Value, Issued Common Stock, $0.01 par value per share, 489,950,000 and 490,000,000 authorized and 110,884,272 and 96,810,504 shares outstanding at September 30, 2019 and December 31, 2018, respectively Common Stock, Value, Issued Additional paid in capital Additional Paid in Capital, Common Stock Cumulative distributions in excess of earnings Accumulated Distributions in Excess of Net Income Accumulated other comprehensive (loss) income Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders’ equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total Equity Total Liabilities and Equity Liabilities and Equity Preferred stock issued (in shares) Preferred Stock, Shares Issued Proceeds from issuance of preferred stock, net of offering costs Proceeds from Issuance of Preferred Stock and Preference Stock, Net Of Offering Costs Proceeds from Issuance of Preferred Stock and Preference Stock, Net Of Offering Costs Stock issuance costs Payments of Stock Issuance Costs Preferred stock, dividend rate (in dollars per share) Preferred Stock, Dividend Rate, Per-Dollar-Amount Preferred stock, liquidation preference, limitation on share conversations (cap amount) (in shares) Preferred Stock, Change in Control Conversion, Share Cap Preferred Stock, Change in Control Conversion, Share Cap Operating Leases, Future Minimum Payments Receivable [Abstract] Lessor, Operating Lease, Payments, Rolling Maturity [Abstract] 2020 Lessor, Operating Lease, Payments to be Received, Next Rolling Twelve Months 2021 Lessor, Operating Lease, Payments to be Received, Rolling Year Two 2022 Lessor, Operating Lease, Payments to be Received, Rolling Year Three 2023 Lessor, Operating Lease, Payments to be Received, Rolling Year Four 2024 Lessor, Operating Lease, Payments to be Received, Rolling Year Five Thereafter Lessor, Operating Lease, Payments to be Received, after Rolling Year Five Total Lessor, Operating Lease, Payments to be Received Future Minimum Base Rent Under Non-cancelable Operating Leases Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block] Lease Cost Lease, Cost [Table Text Block] Maturities of Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Summary of Acquired Wholly Owned Property Acquisitions Schedule of Asset Acquisitions By Acquisition [Table Text Block] Schedule of Asset Acquisitions By Acquisition [Table Text Block] Summary of Fair Value of Amounts Recognized Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Interest costs capitalized Interest Costs Capitalized Related Party Transactions [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Summary of Properties Sold Dispositions Table [Table Text Block] Summary information related to properties sold during the reported period, including address, location, square footage, date of disposal, sales price and gain (loss) recorded. Disclosure of Assets and Liabilities Associated with Real Estate Held for Sale Disclosure of Long Lived Assets Held-for-sale [Table Text Block] Operating lease cost Operating Lease, Cost Variable lease cost Variable Lease, Cost Sublease income Sublease Income Total lease cost Lease, Cost Cover page. Entity Listings [Table] Entity Listings [Table] Entity Listings [Line Items] Entity Listings [Line Items] Document Type Document Type Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding (in shares) Entity Common Stock, Shares Outstanding Series 2019A and 2019B Notes Series 2019A and 2019B Notes [Member] Series 2019A and 2019B Notes [Member] Line of Credit Line of Credit [Member] $125M senior notes $125M senior notes [Member] $125M senior notes [Member] Credit Facility And Term Loan Facility, 225 and 150 Million Credit Facility And Term Loan Facility, 225 and 150 Million [Member] Credit Facility And Term Loan Facility, 225 and 150 Million [Member] Senior Notes, 100 Million, 125 Million, Series 2019A and Series 2019B Senior Notes, 100 Million, 125 Million, Series 2019A and Series 2019B [Member] Senior Notes, 100 Million, 125 Million, Series 2019A and Series 2019B [Member] Unsecured Credit Facility Unsecured Credit Facility [Member] Unsecured credit facility. The Credit Facility, $225 Million Term Loan Facility, $150 Million Term Loan Facility, $100 Million Notes, $125 Million Notes, Series 2019A and Series 2019B Notes The Credit Facility, $225 Million Term Loan Facility, $150 Million Term Loan Facility, $100 Million Notes, $125 Million Notes, Series 2019A and Series 2019B Notes [Member] The Credit Facility, $225 Million Term Loan Facility, $150 Million Term Loan Facility, $100 Million Notes, $125 Million Notes, Series 2019A and Series 2019B Notes [Member] 450 Million Senior Credit Facility 450 Million Senior Credit Facility [Member] 450 Million Senior Credit Facility [Member] Unsecured Revolving Credit Facility Unsecured Revolving Credit Facility [Member] Unsecured revolving credit facility. Federal Funds Purchased Federal Funds Purchased [Member] Eurodollar Eurodollar [Member] Base Rate Base Rate [Member] Thirty-day LIBOR plus Fixed interest rate Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate Prepayment of principal, minimum Debt Instrument, Prepayment Of Principal, Minimum Amount Debt Instrument, Prepayment Of Principal, Minimum Amount Prepayment percentage Principal Prepayment Percentage Principal Prepayment Percentage Credit facility maximum future borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Debt instrument - contingent additional borrowings Debt Instrument - Contingent Additional Borrowings Additional borrowing capacity under a debt instrument which is contingent upon the satisfaction of specified conditions described in the credit agreement. Basis spread on variable rate if additional investment grade rating attained Debt Instrument, Basis Spread On Variable Rate Investment Grade Rating Pricing Structure Percentage points added to the reference rate to compute the variable rate on the debt instrument, if the pricing structure is converted to be based on attaining two investment grade ratings. Commitment fee percentage if pricing structure is converted to be based on an investment-grade rating Line of Credit Facility Commitment Fee Percentage Investment Grade Rating Pricing Structure The fee if the pricing structure is converted to be based on attaining two investment grade ratings, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. Additional availability Line of Credit Facility, Remaining Borrowing Capacity Maximum ratio of total indebtedness to total asset value Debt Instrument Covenant Ratio Of Aggregate Debt To Aggregate Asset Value Maximum Represents the maximum ratio of aggregate debt to aggregate assets as per the covenants of the debt instrument. Maximum ratio of secured debt to total asset value Debt Instrument Covenant Ratio Of Secured Debt To Aggregate Asset Value Maximum Represents the maximum ratio of secured debt to aggregate assets as per the covenants of the debt instrument. Maximum ratio of recourse debt to total asset Debt Instrument Covenant Ratio Of Recourse Debt To Aggregate Asset Value Maximum Represents the maximum ratio of secured recourse debt to aggregate assets as per the covenants of the debt instrument. Minimum tangible net worth required Debt Instrument Covenant Specified Amount For Computing Tangible Net Worth To Be Maintained Represents the specified amount for computing the tangible net worth to be maintained as per the covenants of the debt instrument. Minimum percentage of equity proceeds to be used in minimum tangible net worth calculation Debt Instrument Covenant Percentage Of Net Proceeds Raised In Future Equity Issuances Used For Computing Tangible Net Worth To Be Maintained Represents the percentage of net proceeds raised in all future equity issuances used for computing the tangible net worth to be maintained as per the covenants of the debt instrument. Minimum ratio of EBITDA to fixed charges Debt Instrument Covenant Ratio Of Adjusted EBITDA To Fixed Charges Minimum Represents the minimum required ratio of adjusted EBITDA to fixed charges as per the covenants of the debt instrument. Maximum ratio of unsecured debt to the value of the unencumbered asset pool Debt Instrument Covenant Ratio Of Unsecured Debt To Unencumbered Asset Value Maximum Represents the maximum ratio of unsecured debt to unencumbered assets as per the covenants of the debt instrument. Minimum ratio of NOI unsecured interest expense Debt Instrument Covenant Ratio Of Unencumbered NOI To Unsecured Interest Expense Minimum Represents the minimum required ratio of unencumbered NOI to unsecured interest expense as per the covenants of the debt instrument. Funds from operations percentage Distribution Maximum Funds From Operations Percentage Represents the maximum amount allowed to be distributed expressed as a percentage of funds from operations. Debt service coverage ratio Debt Instrument Covenant Ratio Debt Service Coverage Ratio Minimum Represents the minimum required ratio of net operating income to debt service as per the covenants of the debt instrument. Interest Rate Swap $30M Notional Effective January 15, 2015 Interest Rate Swap $30M Notional Effective January 15, 2015 [Member] Interest Rate Swap $30M Notional Effective January 15, 2015 Interest Rate Swap $30M Notional Effective July 15, 2015 Interest Rate Swap $30M Notional Effective July 15, 2015 [Member] Interest Rate Swap $30M Notional Effective July 15, 2015 Interest Rate Swap $125M Notional Effective February 14, 2018 Interest Rate Swap $125M Notional Effective February 14, 2018 [Member] Interest Rate Swap $125M Notional Effective February 14, 2018 Interest Rate Swap $100M Notional Effective August 14, 2018 Interest Rate Swap $100M Notional Effective August 14, 2018 [Member] Interest Rate Swap $100M Notional Effective August 14, 2018 Interest Rate Swap $100M Notional Effective December 14, 2018 Interest Rate Swap $100M Notional Effective December 14, 2018 [Member] Interest Rate Swap $100M Notional Effective December 14, 2018 Interest Rate Swap $150M Notional Effective July 22, 2019 Interest Rate Swap $150M Notional Effective July 22, 2019 [Member] Interest Rate Swap $150M Notional Effective July 22, 2019 [Member] Interest rate swap agreement, effective date Derivative, Inception Date Interest rate swap agreement, maturity date Derivative, Maturity Date Interest Strike Rate Derivative, Fixed Interest Rate Current Notional Value Derivative, Notional Amount Fair Value Derivative Assets (Liabilities), at Fair Value, Net Offsetting Derivative Assets [Abstract] Offsetting Derivative Assets [Abstract] Gross Amounts of Recognized Assets Derivative Asset, Fair Value, Gross Asset Gross Amounts Offset in the Balance Sheet Derivative Asset, Fair Value, Gross Liability Net Amounts of Assets Presented in the Balance Sheet Derivative Asset Financial Instruments Derivative Asset, Not Offset, Policy Election Deduction Cash Collateral Received Derivative, Collateral, Obligation to Return Cash Net Amount Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election Offsetting Derivative Liabilities [Abstract] Offsetting Derivative Liabilities [Abstract] Gross Amounts of Recognized Liabilities Derivative Liability, Fair Value, Gross Liability Gross Amounts Offset in the Balance Sheet Derivative Liability, Fair Value, Gross Asset Net Amounts of Assets Presented in the Balance Sheet Derivative Liability Financial Instruments Derivative, Collateral, Right to Reclaim Securities Cash Collateral Received Derivative, Collateral, Right to Reclaim Cash Net Amount Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election Subsequent Events Subsequent Events [Text Block] Cash paid for amounts included in the measurement of operating lease liabilities Operating Lease, Payments Right-of-use assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Schedule Of Related Party Transactions By Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transactions By Related Party Related Party [Axis] Related Party Related Party [Domain] Chief Executive Officer Chief Executive Officer [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Revenue from management and leasing services Revenue from Related Parties Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Other comprehensive (loss) income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax Amounts reclassified from accumulated other comprehensive income to interest expense Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Less other comprehensive loss (income) attributable to noncontrolling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Other comprehensive (loss) income attributable to common stockholders Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Title of Individual [Axis] Title of Individual [Axis] Title of Individual [Domain] Title of Individual [Domain] Executive Officer Executive Officer [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Restricted Common Stock Restricted Stock [Member] LTIP Units LTIP Units [Member] LTIP Units Vesting Vesting [Axis] Vesting Vesting [Domain] October 1, 2019 - December 31, 2019 Share Based Compensation, Awards Vesting, Remainder of Fiscal Year [Member] Share Based Compensation, Awards Vesting, Remainder of Fiscal Year [Member] 2020 Share Based Compensation, Awards Vesting, Year 2 [Member] Share Based Compensation, Awards Vesting, Year 2 [Member] 2021 Share Based Compensation, Awards Vesting, Year 3 [Member] Share Based Compensation, Awards Vesting, Year 3 [Member] 2022 Share Based Compensation, Awards Vesting, Year 4 [Member] Share Based Compensation, Awards Vesting, Year 4 [Member] 2023 Share Based Compensation, Awards Vesting, Year 5 [Member] Share Based Compensation, Awards Vesting, Year 5 [Member] Non-vested shares (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Balance at January 1, 2019 (in shares) Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Balance at September 30, 2019 (in shares) Shares tendered in accordance with terms of plan to satisfy tax withholding (in shares) Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary of significant accounting policies. Accounting Standards Update 2016-02 Measurement Input Type [Axis] Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Measurement Input, Discount Rate Measurement Input, Discount Rate [Member] Measurement Input, Cap Rate Measurement Input, Cap Rate [Member] Property Average Lease Up Period Property Average Lease Up Period [Member] Measurement Input, Property Lease Up Period Construction Employees Construction Employees [Member] Construction Employees Leasing Employees Leasing Employees [Member] Leasing Employees Office Leases Building [Member] Site Improvements Land Improvements [Member] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Summary of significant accounting policies. Acquired property, measurement input Acquired Property, Measurement Input Acquired Property, Measurement Input Estimated average lease-up period Fair Value Estimate, Property Average Lease Up Period Fair Value Estimate, Property Average Lease Up Period Real estate taxes and insurance costs capitalized Real Estate Taxes And Insurance Costs Capitalized Real estate taxes and insurance costs capitalized as property costs during periods in which activities necessary to get a property ready for its intended use are in progress. Compensation costs capitalized Compensation Costs Capitalized Represents compensation costs capitalized during the period (including salary, bonus and equity-based compensation) for employees involved with construction activities necessary to get a property ready for its intended use and employees involved in the successful origination of leases. Estimated remaining life Property, Plant and Equipment, Useful Life REIT annual taxable income distribution requirement percentage Reit Taxable Income Distribution Requirement Percentage Reit taxable income distribution requirement percentage. Adjustment to rental income resulting from lease collectability assessment Adjustment To Rental Income Resulting From Lease Collectibility Assessment Adjustment to rental income resulting from assessment of collectibility of tenant lease payments. Income tax provision Income Tax Expense (Benefit)