Discontinued Operations and Disposal Groups [Abstract] Summary of the 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. Schedule of assets and liabilities associated with real estate held for sale Disclosure of Long Lived Assets Held-for-sale [Table Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization Business Description and Basis of Presentation [Text Block] Accounting Policies [Abstract] Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Cash, Cash Equivalents and Restricted Cash Schedule of Cash and Cash Equivalents [Table Text Block] Investments, All Other Investments [Abstract] Revenues Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Net Income Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Equity [Abstract] Accumulated other comprehensive income (loss) - beginning balance Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive 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 Net current period other comprehensive income Other Comprehensive Income (Loss), Net of Tax Less: other comprehensive income attributable to noncontrolling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Other comprehensive income attributable to common stockholders Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Accumulated other comprehensive income - ending balance Schedule of Investments [Abstract] Investment in Unconsolidated Real Estate Equity Method Investments and Joint Ventures Disclosure [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Derivative Financial Instruments, Assets Derivative Financial Instruments, Assets [Member] Liability Class Liability Class [Axis] Fair Value by Liability Class Fair Value by Liability Class [Domain] Derivative Financial Instruments, Liabilities Derivative Financial Instruments, Liabilities [Member] Variable Rate Variable Rate [Axis] Variable Rate Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Derivative Instrument Derivative Instrument [Axis] Derivative Contract Derivative Contract [Domain] Interest Rate Swap Interest Rate Swap [Member] Interest Rate Swap 5 Interest Rate Swap Five [Member] Interest Rate Swap Five Interest Rate Swap 7 Interest Rate Swap Seven [Member] [Member] Interest Rate Swap Seven [Member] [Member] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument, Name [Domain] 100 Million Term Loan 100 Million Term Loan [Member] 100 Million Term Loan Derivative [Line Items] Derivative [Line Items] Principal amount Long-term Debt, Gross Number of swaps terminated Derivative, Number of Instruments Terminated Derivative, Number of Instruments Terminated Interest rate swap agreement, notional amount Derivative, Notional Amount Interest rate swap, fixed interest rate Derivative, Fixed Interest Rate Additional amount reclassified from AOCI as an increase to interest expense Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary of significant accounting policies. Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Rancho Cucamonga, CA Rancho Cucamonga, CA [Member] Rancho Cucamonga, CA [Member] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Construction Employees Construction Employees [Member] Construction Employees Leasing Employees Leasing Employees [Member] Leasing Employees Range Range [Axis] Range Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Property, Plant and Equipment, Type Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type Property, Plant and Equipment, Type [Domain] Building 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. Restricted cash Restricted Cash, Current Mortgage loan Mortgage Loans on Real Estate, Face Amount of Mortgages Rentable square feet Net Rentable Area Proceeds from fees received Proceeds from Fees Received Fixed interest rate on notes receivable Mortgage Loans on Real Estate, Interest Rate Deferred income Loans and Leases Receivable, Deferred Income Mortgage loans on real estate outstanding principal balance Mortgage Loans on Real Estate, Carrying Amount of Mortgages Fair value inputs, discount rate Fair Value Inputs, Discount Rate Fair value inputs, cap rate Fair Value Inputs, Cap Rate Property average lease up period Fair Value Estimate, Property Average Lease Up Period Fair Value Estimate, Property Average Lease Up Period Interest costs capitalized Interest Costs Capitalized 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. Rents and other receivables Accounts Receivable, Gross Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable Rents and other receivables, net Accounts Receivable, Net Deferred rent receivable Deferred Rent Receivables, Gross The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property, by the lessor or lessee, respectively. Allowance for doubtful accounts Deferred Rent Receivable, Allowance For Doubtful Accounts Deferred Rent Receivable, Allowance For Doubtful Accounts Deferred rent receivable, net Deferred Rent Receivables, Net Provision for doubtful accounts Provision For Doubtful Accounts, Including Straight Line Rent Provision For Doubtful Accounts, Including Straight Line Rent Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Cash, cash equivalents and restricted cash, end of period. Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents 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 Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name Finite-Lived Intangible Assets, Major Class Name [Domain] In-place Lease Intangibles Leases, Acquired-in-Place [Member] Net Above/(Below) Market Operating Leases Net Above Below Market Operating Leases [Member] Net above/(below) market operating 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] 2018 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Total Finite-Lived Intangible Assets, Net SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract] SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] Balance, beginning of year Real Estate Investment Property, at Cost Acquisition of investment in real estate SEC Schedule III, Real Estate, Other Acquisitions Construction costs and improvements SEC Schedule III, Real Estate, Improvements Disposition of investment in real estate SEC Schedule III, Real Estate, Cost of Real Estate Sold Properties held for sale SEC Schedule III, Real Estate, Real Estate Held for Sale Amount of real estate investments classified as held for sale for entities with a substantial portion of business acquiring and holding investment real estate. Write-off of fully depreciated assets SEC Schedule III, Real Estate, Other Deductions Balance, End of Year SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] Balance, beginning of year SEC Schedule III, Real Estate Accumulated Depreciation Depreciation of investment in real estate SEC Schedule III, Real Estate Accumulated Depreciation, Depreciation Expense Disposition of investment in real estate SEC Schedule III, Real Estate Accumulated Depreciation, Real Estate Sold Properties held for sale SEC Schedule III, Real Estate Accumulated Depreciation, Real Estate Held for Sale Amount of decrease to accumulated depreciation for real estate investments classified as held for sale for entities with a substantial portion of business acquiring and holding investment real estate. Write-off of fully depreciated assets SEC Schedule III, Real Estate Accumulated Depreciation, Other Deductions Balance, end of year Incentive Award Plan Compensation and Employee Benefit Plans [Text Block] Related Party Transactions [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Net above (below) market tenant leases Net Above Below Market Tenant Leases [Member] Net above (below) market tenant leases. Above-market ground lease 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 intangible Accretion Of Above Market Ground Lease Intangible Accretion of above market ground lease intangible. Income Statement [Abstract] RENTAL REVENUES Real Estate Revenue, Net [Abstract] Rental income Operating Leases, Income Statement, Lease Revenue Tenant reimbursements Tenant Reimbursements Other income Other Real Estate Revenue TOTAL RENTAL REVENUES Real Estate Revenue, Net Management, leasing and development services Management Fees Revenue 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 EXPENSE Nonoperating Income (Expense) [Abstract] Acquisition expenses Business Combination, Acquisition Related Costs Interest expense Interest Expense TOTAL EXPENSES Other Expenses TOTAL EXPENSES Other Cost and Expense, Operating Equity in income from unconsolidated real estate entities Income (Loss) from Equity Method Investments Gain from early repayment of note receivable Gain On Early Repayment Of Notes Receivable Amount represents the difference between the net proceeds from the early collection of a note receivable and the net carrying amount of the note receivable at the time of collection. Gain (loss) on extinguishment of debt Gain (Loss) on Extinguishment of Debt Gain on sale of real estate Gains (Losses) on Sales of Investment Real Estate NET INCOME Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Less: net income attributable to noncontrolling interest 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 (loss) available to common stockholders per share - basic and diluted (in dollars per share) Earnings Per Share, Basic and Diluted Weighted average shares of common stock outstanding - basic (in dollars per share) Weighted Average Number of Shares Outstanding, Basic Weighted average shares of common stock outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Real Estate And Accumulated Depreciation By Property [Table] SEC Schedule III, Real Estate and Accumulated Depreciation, by Property [Table] Land Land [Member] Buildings and improvements Building and Building Improvements [Member] 6 Properties Secured Six Properties Secured [Member] Six properties secured. Long-term Debt, Type Long-term Debt, Type [Axis] Long-term Debt, Type Long-term Debt, Type [Domain] Term Loan Term Loan [Member] Term loan. Name of Property Name of Property [Axis] Name of Property Name of Property [Domain] 22343-22349 La Palma Avenue La Palma Ave [Member] La palma ave. 1065 E. Walnut Street 1065 E. Walnut Street [Member] 1065 E. Walnut Street [Member] Real Estate And Accumulated Depreciation [Line Items] SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] Federal income tax basis SEC Schedule III, Real Estate, Federal Income Tax Basis Real estate investment cumulative impairment Real Estate Owned, Valuation Allowance, Component Notes payable Long-term Debt Unamortized debt discount (premium) Debt Instrument, Unamortized Discount (Premium) And Deferred Loan Costs, Net Debt Instrument, Unamortized Discount (Premium) And Deferred Loan Costs, Net Quarterly Financial Information Disclosure [Abstract] Quarterly Information (unaudited) Quarterly Financial Information [Text Block] Real Estate [Abstract] Real Estate [Table] Real Estate [Table] Investment, Name Investment, Name [Axis] Investment, Name Investment, Name [Domain] 3255 Mission Oaks Blvd 3255 Mission Oaks Blvd [Member] 3255 Mission Oaks Blvd Sale of Stock Sale of Stock [Axis] Sale of Stock Sale of Stock [Domain] Follow On Public Offer (Equity Offering) Follow On Public Offer (Equity Offering) [Member] Follow On Public Offer (Equity Offering) 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 1031 Exchange Like Kind Exchange, Qualified Under IRS Section 1031 [Member] Like Kind Exchange, Qualified Under IRS Section 1031 [Member] Tax Deferred Section 1031 Like Kind Exchange, Tax Deferred Under IRS Section 1031 [Member] Like Kind Exchange, Tax Deferred Under IRS Section 1031 [Member] $125M senior notes $125M senior notes [Member] $125M senior notes [Member] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition, Acquiree [Domain] 1840 Dana Street and 12910 East Mulberry Drive [Member] 1840 Dana Street and 12910 East Mulberry Drive [Member] 1840 Dana Street and 12910 East Mulberry Drive [Member] 28901-28903 Avenue Paine 28903 Avenue Paine [Member] 28903 Avenue Paine 28903-28903 Avenue Paine 2390 Ward Avenue [Member] 2390 Ward Avenue [Member] Safari Business Center Safari Business Center [Member] Safari Business Center [Member] 4175 Conant Street 4175 Conant Street [Member] 4175 Conant Street [Member] 5421 Argosy Avenue 5421 Argosy Avenue [Member] 5421 Argosy Avenue [Member] 14820-14830 Carmenita Road 14820-14830 Carmenita Road [Member] 14820-14830 Carmenita Road [Member] 3002-3072 Inland Empire Blvd 3002-3072 Inland Empire Boulevard [Member] 3002-3072 Inland Empire Boulevard [Member] 17000 Kingsview Avenue 17000 Kingsview Avenue [Member] 17000 Kingsview Avenue [Member] 2301-2329, 2331-2359, 2361-2399, 2370-2398 & 2332-2366 E. Pacifica Place; 20001-20021 Rancho Way Rancho Pacifica Industrial Park [Member] Rancho Pacifica Industrial Park [Member] 11190 White Birch Drive 11190 White Birch Drive [Member] 11190 White Birch Drive [Member] 4832-4850 Azusa Canyon Road 4832 Azusa Canyon Road [Member] 4832 Azusa Canyon Road [Member] 1825 Soto Street 1825 Soto Street [Member] 1825 Soto Street [Member] 19402 Susana Road 19402 Susana Street [Member] 19402 Susana Street [Member] 13225 Western Avenue 13225 Western Avenue [Member] 13225 Western Avenue [Member] 15401 Figueroa Street 15401 Figueroa Street [Member] 15401 Figueroa Street [Member] 8542 Slauson Avenue 8542 Slauson Avenue [Member] 8542 Slauson Avenue [Member] 687 Eucalyptus Avenue 687 Eucalyptus Avenue [Member] 687 Eucalyptus Avenue [Member] 302 Rockefeller Avenue 302 Rockefeller Ave [Member] 302 Rockefeller Ave [Member] 4355 Brickell Street 4355 Brickell Street [Member] 4355 Brickell Street [Member] 12622-12632 Monarch Street 12622-12632 Monarch Street [Member] 12622-12632 Monarch Street [Member] 8315 Hanan Way 8315 Hanan Way [Member] 8315 Hanan Way [Member] 9375 Archibald Avenue Archibald Ave [Member] 9375 Archibald Ave. 2535 Midway Drive 2535 Midway Drive [Member] 2535 Midway Drive [Member] 12345 First American Way and 9401 De Soto Avenue 12345 First American Way and 9401 De Soto Avenue [Member] 12345 First American Way and 9401 De Soto Avenue [Member] 77-700 Enfield Lane 77-700 Enfield Lane [Member] 77-700 Enfield Lane [Member] 8525 Camino Santa Fe 8525 Camino Santa Fe [Member] 8525 Camino Santa Fe [Member] 28454 Livingston Avenue 28454 Livingston Avenue [Member] 28454 Livingston Avenue [Member] REIT Portfolio Acquisition REIT Portfolio Acquisition [Member] REIT Portfolio Acquisition 10750-10826 Lower Azusa Road 10750-10826 Lower Azusa Road [Member] 10750-10826 Lower Azusa Road 6010 N. Paramount Boulevard 6010 N Paramount Boulevard [Member] 6010 N Paramount Boulevard 525 Park Avenue 525 Park Avenue [Member] 525 Park Avenue 1600 E. Orangethorpe Avenue 1600 E. Orangethorpe Avenue [Member] 1600 E. Orangethorpe Avenue 14742-14750 Nelson Avenue 14742-14750 Nelson Avenue [Member] 14742-14750 Nelson Avenue 3927 Oceanic Drive 3927 Oceanic Drive [Member] 3927 Oceanic Drive [Member] 301-445 Figueroa Street 301-445 North Figueroa in Wilmington, California [Member] 301-445 North Figueroa in Wilmington, California [Member] 12320 4th Street 12320 4th Street [Member] 12320 4th Street [Member] 9190 Activity Road 9190 Activity Road [Member] 9190 Activity Road [Member] Real Estate [Line Items] Real Estate [Line Items] Date of Acquisition Business Acquisition, Date of Acquisition Agreement Rentable Square Feet Number of Buildings Number Of Buildings Acquired Number of buildings acquired. Contractual Purchase Price (in thousands) Acquisition Purchase Price The contractual price of a business combination or asset acquisition Asset acquisition capitalized acquisition costs Acquisition Costs, Period Cost Payments to acquire real estate Payments to Acquire Real Estate Number of properties acquired Number Of Additional Properties Acquired Number of additional properties acquired. Number of core submarkets in portfolio acquired Number of Core Submarkets in Portfolio Acquired Number of Core Submarkets in Portfolio Acquired Ownership Interest Equity Method Investment, Ownership Percentage Issuance of stock (shares) Stock Issued During Period, Shares, New Issues Stockholder's Equity Stockholders' Equity Note Disclosure [Text Block] Consolidation Consolidation, Policy [Policy Text Block] Basis of Accounting Basis of Accounting, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash and Cash Equivalents and Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Notes Receivable Loans and Leases Receivable, Mortgage Banking Activities, Policy [Policy Text Block] Investment 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 Precontract Costs, Policy [Policy Text Block] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Investment in Unconsolidated Real Estate Equity Method Investments [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Derivative Instruments and Hedging Activities Derivatives, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Valuation of Receivables Receivables, Policy [Policy Text Block] Debt Issuance Costs Debt, Policy [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] Commitments and Contingencies Disclosure [Abstract] Future Minimum Commitment Under Ground Lease and Corporate Office Lease Lessee, Operating Lease, Disclosure [Table Text Block] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] 2018 Unvested Shares Of Restricted Stock Expected To Vest In Two Thousand Eighteen [Member] Unvested shares of restricted stock expected to vest In two thousand eighteen. 2019 Unvested Shares Of Restricted Stock Expected To Vest In Two Thousand Nineteen [Member] [Member] Unvested Shares Of Restricted Stock Expected To Vest In Two Thousand Nineteen [Member] 2020 Unvested Shares Of Restricted Stock Expected To Vest In Two Thousand Twenty [Member] Unvested Shares Of Restricted Stock Expected To Vest In Two Thousand Twenty [Member] 2021 Unvested Shares Of Restricted Stock Expected To Vest In Two Thousand Twenty One [Member] Unvested Shares Of Restricted Stock Expected To Vest In Two Thousand Twenty One [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Non-vested shares (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Interest Rate Swaps Derivative Instruments and Hedging Activities Disclosure [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 Portion at Fair Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] Carrying Value Reported Value Measurement [Member] Fair Value, Hierarchy Fair Value, Hierarchy [Axis] Fair Value Hierarchy Fair Value Hierarchy [Domain] 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 Long-term Debt, Fair Value Dispositions and Real Estate Held for Sale Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Investments in Real Estate Real Estate Disclosure [Text Block] Earnings Per Share [Abstract] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Award Type Award Type [Axis] Equity Award Equity Award [Domain] Performance Units Performance Shares [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Numerator: Net Income (Loss) Attributable to Parent [Abstract] Net income Less: Preferred stock dividends Less: Net income attributable to noncontrolling interests Less: Net income attributable to participating securities Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average shares of common stock outstanding - basic and diluted (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Effect of dilutive securities - performance units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares Net income attributable to common stockholders Earnings Per Share, Basic and Diluted [Abstract] Earnings per share- Basic (in dollars per share) Earnings Per Share, Basic Earnings per share- Diluted (in dollars per share) Earnings Per Share, Diluted 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 Long Lived Assets Held-for-sale [Table] Schedule of Long Lived Assets Held-for-sale [Table] Tenant improvements Tenant Improvements [Member] Tenant Improvements [Member] Construction in progress Construction in Progress [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 Acquired lease intangible assets, net Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent 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 Disposal Group, Including Discontinued Operation, Liabilities Revenues Business Acquisition, Pro Forma Revenue Net income Business Acquisition, Pro Forma Net Income (Loss) Net income attributable to common stockholders per share - basic (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Net income attributable to common stockholders per share - diluted (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Amount of gain (loss) recognized in AOCI on derivatives (effective portion) Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Amount of loss reclassified from AOCI into earnings under “Interest expense” (effective portion) Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Amount of gain (loss) recognized in earnings under “Interest expense” (ineffective portion and amount excluded from effectiveness testing) Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Leases, Operating [Abstract] Operating Leases Lessor, Operating Leases [Text Block] 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. Area of real estate property additionally managed Area Of Real Estate Property Additionally Managed Area of real estate property managed Schedule Of Share Based Payment Award, Equity Instruments Other Than Options, Fair Value Assumptions And Grant Date Fair Value Schedule Of Share Based Payment Award, Equity Instruments Other Than Options, Fair Value Assumptions And Grant Date Fair Value [Table Text Block] Schedule Of Share Based Payment Award, Equity Instruments Other Than Options, Fair Value Assumptions And Grant Date Fair Value [Table Text Block] Schedule of LTIP Unit Activity Schedule of Other Share-based Compensation, Activity [Table Text Block] Total Shareholder Return Levels And Vesting Percentages Schedule Of Share-Based Compensation, Total Shareholder Return Levels And Vesting Percentages [Table Text Block] Schedule Of Share-Based Compensation, Total Shareholder Return Levels And Vesting Percentages Schedule of valuation assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] 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] Schedule Of Business Acquisitions By Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Above-market tenant leases Above Market Leases [Member] Other 2017 Acquisitions Other 2017 Acquisitions [Member] Other 2017 Acquisitions Other 2016 Acquisitions Other 2016 Acquisitions [Member] Other 2016 Acquisitions Business Acquisition [Line Items] Business Acquisition [Line Items] Assets: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Land Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land Buildings and Improvements Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings Tenant improvements Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Tenant Improvements Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Tenant Improvements Acquired lease intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Other acquired assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Working Capital Assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Working Capital Assets Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Liabilities: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] Acquired lease intangible liabilities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Intangible Lease Liabilities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Intangible Lease Liabilities Other assumed liabilities Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Working Capital Liabilities Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Working Capital Liabilities Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Net assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Amortization period of acquired intangible assets Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired-in-place leases Finite-Lived Intangible Asset, Acquired-in-Place Leases Below market lease, weighted average useful life Below Market Lease, Weighted Average Useful Life Below Market Lease, Weighted Average Useful Life Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income 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] Equity in income from unconsolidated real estate entities Provision for doubtful accounts Provision for Doubtful Accounts Amortization of loan origination fees Amortization of Deferred Loan Origination Fees, Net Accretion of discount on notes receivable Accretion (Amortization) of Discounts and Premiums, Investments Deferred interest income on notes receivable Deferred Interest Income On Notes Receivable Interest received other than in cash for example by issuing additional notes receivable. As a noncash item, it is subtracted from net income when calculating cash provided by or used in operations using the indirect method. Gain from early repayment of notes receivable (Gain) loss on extinguishment of debt Gain on sale of real estate Amortization of loan costs Amortization of Debt Issuance Costs Accretion of premium on notes payable Amortization of Debt Discount (Premium) Equity based compensation expense Share-based Compensation 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 Acquisition related deposits Payments for (Proceeds from) Deposits on Real Estate Acquisitions Distributions from unconsolidated real estate entities Proceeds from Equity Method Investment, Distribution, Return of Capital Issuance of notes receivable Payments to Acquire Notes Receivable Principal repayments of notes receivable Proceeds from Collection of Notes Receivable Disposition related deposits Proceeds from Deposits on Real Estate Sales 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 Debt extinguishment costs Payment for Debt Extinguishment or Debt Prepayment Cost Redemption of preferred stock in connection with liquidation of private REIT Payments to Noncontrolling Interests 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 Repurchase of common shares to satisfy employee tax withholding requirements Payments Related to Tax Withholding for Share-based Compensation Repurchase of operating partnership units Payments for Repurchase of Redeemable Noncontrolling Interest Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities (Decrease) increase in cash and cash equivalents 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 and restricted cash, end of period Supplemental disclosure of cash flow information: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Cash paid during the period for interest (net of capitalized interest of $1,694, $1,653 and $754 for 2017, 2016 and 2015, respectively) Interest Paid, Net Assumption of loan in connection with acquisition of real estate including loan premium Noncash or Part Noncash Acquisition, Debt Assumed Capital expenditure accruals Capital Expenditures Incurred but Not yet Paid Dividends payable Dividends Payable Property Dispositions [Table] Property Dispositions [Table] Property Dispositions (Table) Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Disposal Group Name Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] 2811 Harbor Boulevard 2811 Harbor Boulevard [Member] 2811 Harbor Boulevard [Member] 12345 First American Way 12345 First American Way [Member] 12345 First American Way [Member] 9401 De Soto Avenue 9401 De Soto Avenue [Member] 9401 De Soto Avenue 77-700 Enfield Lane Enfield Lane [Member] 77-700 Enfield Lane. 1840 Dana Street 1840 Dana Street [Member] 1840 Dana Street [Member] 12910 East Mulberry Drive East Mulberry Dr [Member] 12910 East Mulberry Dr. 331 East 157th Street 331 East 157th Street [Domain] 331 East 157th Street [Domain] Property Dispositions [Line Items] Property Dispositions [Line Items] Property Dispositions (Line Items) Date of Disposition Disposal Date Contract Sales Price Disposition Sales Price Contract sales price for dispositions of real estate Gain Recorded Equity Components Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock Common Stock [Member] Vesting Vesting [Axis] Vesting Vesting [Domain] Absolute TSR Vesting Percentage Range One Absolute TSR Vesting Percentage Range One [Member] Absolute TSR Vesting Percentage Range One Absolute TSR Vesting Percentage Range Two Absolute TSR Vesting Percentage Range Two [Member] Absolute TSR Vesting Percentage Range Two Absolute TSR Vesting Percentage Range Three Absolute TSR Vesting Percentage Range Three [Member] Absolute TSR Vesting Percentage Range Three Absolute TSR Vesting Percentage Range Four Absolute TSR Vesting Percentage Range Four [Member] Absolute TSR Vesting Percentage Range Four Relative TSR Vesting Percentage Range One Relative TSR Vesting Percentage Range One [Member] Relative TSR Vesting Percentage Range One Relative TSR Vesting Percentage Range Two Relative TSR Vesting Percentage Range Two [Member] Relative TSR Vesting Percentage Range Two Relative TSR Vesting Percentage Range Three Relative TSR Vesting Percentage Range Three [Member] Relative TSR Vesting Percentage Range Three Relative TSR Vesting Percentage Range Four Relative TSR Vesting Percentage Range Four [Member] Relative TSR Vesting Percentage Range Four Executive Officers Executive Officer [Member] 2013 Incentive Award Plan Two Thousand Thirteen Incentive Award Plan [Member] Two thousand thirteen incentive award plan. LTIP Units LTIP Units [Member] LTIP Units Closing share price of common stock (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 Discount for post-vesting restrictions and book-up events Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Post Vesting Restrictions And Book-Up Event Uncertainty Discount, Percent Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Post Vesting Restrictions And Book-Up Event Uncertainty Discount, Percent Grant date fair value (in thousands) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Grant Date Fair Value Share based compensation arrangement by share based payment award equity instruments other than options vested in period grant date fair value. Absolute TSR Vesting Percentage Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Designated Absolute Total Shareholder Return Base Units, Vesting Percentage Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Designated Absolute Total Shareholder Return Base Units, Vesting Percentage Relative TSR Vesting Percentage Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Designated Relative Total Shareholder Return Base Units, Vesting Percentage Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Designated Relative Total Shareholder Return Base Units, Vesting Percentage Company TSR Percentage Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Designated Absolute Total Shareholder Return Base Units, Company TSR Percentage Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Designated Absolute Total Shareholder Return Base Units, Company TSR Percentage Peer Group Relative Performance Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Designated Absolute Total Shareholder Return Base Units, Peer Group Relative Performance Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Designated Absolute Total Shareholder Return Base Units, Peer Group Relative Performance Fair Value Assumptions and Methodology [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Expected price volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected price volatility, minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected price volatility, maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Risk free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value Expected volatility rate, median for peer group companies Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Median For Peer Group Companies Represents the median value of the range of expected share price volatilities for the performance award peer group companies. Expected volatility rate average for peer group companies Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Average For Peer Group Companies Represents the average value of the range of expected share price volatilities for the performance award peer group companies. Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Debt Disclosure [Abstract] 2018 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2019 Long-term Debt, Maturities, Repayments of Principal in Year Two 2020 Long-term Debt, Maturities, Repayments of Principal in Year Three 2021 Long-term Debt, Maturities, Repayments of Principal in Year Four 2022 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Total Computation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Summary of Interest Rate Swap Agreement Schedule of Derivative Instruments [Table Text Block] Summary of Impact of Derivative Instruments on Consolidated and Combined Financial Statements Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Commitments And Contingencies [Table] Commitments And Contingencies [Table] Commitments and contingencies. Lease Arrangement, Type [Axis] Lease Arrangement, Type [Axis] Lease Arrangement, Type [Domain] Lease Arrangement, Type [Domain] Ground Lease Ground Lease [Member] Ground lease. Office Lease Office Lease [Member] Office lease. Corona, CA Corona, CA [Member] Corona, CA Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accounts Payable and Accrued Expenses Accounts Payable and Accrued Liabilities [Member] Other Assets Other Assets [Member] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments and contingencies. Estimated remedian costs Estimated Remediation Costs Estimated remediation, processing and oversight costs. Deposits paid 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 remediation 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 Ground lease, expiration date Lease Expiration Date Rent expense Operating Leases, Rent Expense Operating leases, contingency period Lessee Leasing Arrangements, Operating Leases, Contingency Period Operating Leases, Contingency Period Corona lease transaction costs Corona Lease Transaction Costs Corona Lease Transaction Costs Commitments for tenant improvement and construction work Other Commitment Cash, FDIC insured amount Cash, FDIC Insured Amount Acquired Lease Intangibles Intangible Assets Disclosure [Text Block] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] 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] Interest Rate Swap Asset Interest Rate Derivative Assets, at Fair Value Interest Rate Swap Liability Interest Rate Derivative Liabilities, at Fair Value Don Julian Rd Don Julian Rd [Member] 15241 - 15277, 15317 - 15339 Don Julian Rd. South Lewis Rd South Lewis Rd [Member] 300 South Lewis Rd. South Shamrock South Shamrock [Member] 1400 South Shamrock. Camino Del Sol Camino Del Sol [Member] 2220-2260 Camino del Sol. Valley Blvd Valley Blvd [Member] 14250-14278 Valley Blvd. East Walnut Ave East Walnut Ave [Member] 2300-2386 East Walnut Ave. Bledsoe St1306513081 Bradley Ave Bledsoe St1306513081 Bradley Ave [Member] 15140 & 15148 Bledsoe St., 13065 - 13081 Bradley Ave. Avenue Crocker Avenue Crocker [Member] 28340 - 28400 Avenue Crocker. West Easy St West Easy St [Member] 21-29 West Easy St. Roselle St Roselle St [Member] 10439-10477 Roselle St. N Placentia Ave23502384 E Orangethorpe Ave N Placentia Ave23502384 E Orangethorpe Ave [Member] 1631 N. Placentia Ave., 2350 - 2384 E. Orangethorpe Ave. Pioneer Ave Pioneer Ave [Member] 2575 Pioneer Ave. 157th Street One Hundred And Fifty Seventh Street [Member] One hundred and fifty seventh street. Santa Fe Springs Rd Santa Fe Springs Rd [Member] 9641 - 9657 Santa Fe Springs Rd. Avenue Stanford Avenue Stanford [Member] 28159 Avenue Stanford. Arrow Highway Arrow Highway [Member] Arrow highway. Impala Dr Impala Dr [Member] 2431-2465 Impala Dr. Yarrow Dr Yarrow Dr [Member] 6200 & 6300 Yarrow Dr. Six Two Four One Yarrow Dr Six Two Four One Yarrow Dr [Member] 6231 & 6241 Yarrow Dr. Cleveland Ave108606th St Cleveland Ave108606th St [Member] 9160 - 9220 Cleveland Ave., 10860 6th St. S Broadway S Broadway [Member] 18118-18120 S. Broadway. W Alameda Ave W Alameda Ave [Member] 901 W. Alameda Ave. E46th St E46th St [Member] 1938-1946 E. 46th St. N San Gabriel Blvd26702674 Walnut Ave2675 Nina St N San Gabriel Blvd26702674 Walnut Ave2675 Nina St [Member] 89-91 N. San Gabriel Blvd., 2670-2674 Walnut Ave., 2675 Nina St. Hall Rd Hall Rd [Member] 9220-9268 Hall Rd. W33rd St W33rd St [Member] 131 W. 33rd St. Newton Dr Newton Dr [Member] 5803 Newton Dr. Poinsettia Ave Poinsettia Ave [Member] 929, 935, 939 & 951 Poinsettia Ave. South Grand Ave South Grand Ave [Member] 200-220 South Grand Ave. W Warner Ave W Warner Ave [Member] 3720-3750 W. Warner Ave. Central Ave Central Ave [Member] Central ave. Arroyo Ave Arroyo Ave [Member] 1050 Arroyo Ave. Six Five Zero South Grand Ave Six Five Zero South Grand Ave [Member] 600-650 South Grand Ave.[Member]. N Vinedo Ave N Vinedo Ave [Member] 121-125 N. Vinedo Ave. West Mac Arthur Blvd West Mac Arthur Blvd [Member] 3441 West MacArthur Blvd. Odessa Ave Odessa Ave [Member] 6701 & 6711 Odessa Ave. One Three Nine Three Two Valley Blvd One Three Nine Three Two Valley Blvd [Member] 13914-13932 Valley Blvd.[Member]. Jersey Blvd Jersey Blvd [Member] 10700 Jersey Blvd. Arrow Highway5220 Fourth St Arrow Highway5220 Fourth St [Member] 15705, 15709 Arrow Highway & 5220 Fourth St. Normandie Ave Normandie Ave [Member] 20920-20950 Normandie Ave. Shoemaker Ave Shoemaker Ave [Member] 14944, 14946, 14948 Shoemaker Ave. Alondra Blvd Alondra Blvd [Member] 6423-6431 & 6407-6119 Alondra Blvd. S Campus Ave S Campus Ave [Member] 1400 S. Campus Ave. Calvert St Calvert St [Member] 15041 Calvert St. Del Norte Blvd Del Norte Blvd [Member] 701 Del Norte Blvd. Tyburn St., N. San Fernando Rd. Tyburn Street North San Fernando Road [Member] Tyburn street north San Fernando road. Two Four Zero St Two Four Zero St [Member] 1661 Two Four Zero St. Orion Avenue Orion Avenue [Member] Orion avenue. Oxnard Street Oxnard Street [Member] Oxnard street. La Palma Ave Gilbert Street La Palma Avenue [Member] Gilbert Street La Palma Avenue. Thompson Creek Rd Thompson Creek Rd [Member] Thompson creek rd. North Madera Road2950 North Madera Road2950 [Member] North madera road 2950 [Member] West Vanowen Street West Vanowen Street [Member] West Vanowen Street. Rosecrans Avenue Rosecrans Avenue [Member] Rosecrans avenue. Oxnard Street Fourteen Thousand Seven Hundred And Twenty Three To Fourteen Thousand Eight Hundred And Twenty Five Oxnard Street [Member] Fourteen thousand seven hundred and twenty three to fourteen thousand eight hundred and twenty five oxnard street. Milliken Avenue and Santa Ana Street in Ontario CA Milliken Avenue And Santa Ana Street In Ontario C A [Member] Milliken Avenue and Santa Ana Street in Ontario CA. West 228th Street West228th Street [Member] West 228th street. Frampton Avenue Frampton Avenue [Member] Frampton avenue. Saturn Way Saturn Way [Member] Saturn way. North San Fernando Rd North San Fernando Rd [Member] North san fernando rd. Crescent Bay Drive Crescent Bay Drive [Member] Crescent bay drive. S. Birch Street South Birch Street [Member] South birch street. Santa Ana Street and Dupont Avenue Santa Ana St And Dupont Ave [Member] Santa ana st and dupont ave. 9755 Distribution Avenue Nine Thousand Seven Hundred Fifty Five Distribution Avenue [Member] 9755 distribution avenue. 9855 Distribution Avenue Nine Thousand Eight Hundred Fifty Five Distribution Avenue [Member] 9855 distribution avenue. 9340 Cabot Drive Nine Thousand Three Hundred Forty Cabot Drive [Member] 9340 cabot drive. 9404 Cabot Drive Nine Thousand Four Hundred Four Cabot Drive [Member] Nine thousand four hundred four cabot drive. 9455 Cabot Drive Nine Thousand Four Hundred Fifty Five Cabot Drive [Member] Nine thousand four hundred fifty five cabot drive. E. Salt Lake City East Salt Lake City [Member] East salt lake city. E. Hunter Avenue East Hunter Avenue [Member] East hunter avenue. W. Valley Blvd. West Valley Blvd [Member] West valley blvd. Alton Parkway Alton Parkway [Member] Alton parkway. West Avenue West Avenue [Member] West avenue 21040 Nordoff Street; 9035 Independence Avenue; 21019 - 21045 Osborne Street Chatsworth Industrial Park [Member] Chatsworth industrial park. Avenue Keamey Avenue Kearney [Member] Avenue kearney. 605 8th St. Six Zero Five Eighth St [Member] Six zero five eighth st. Mason Avenue Mason Avenue [Member] Mason avenue. 7900 Nelson Rd. Nelson Rd [Member] Nelson rd. S Anderson St. S Anderson St [Member] S Anderson St. 10509 Business Drive Business Drive [Member] Business drive. Slover Avenue Slover Avenue [Member] Slover avenue. 220 Ivy Avenue W Ivy Avenue [Member] W Ivy avenue. Paseo Mercado Paseo Mercado [Member] Paseo mercado. Eastman Ave. Eastman Ave [Member] Eastman ave. 1800 Eastman Ave. One Eight Zero Zero Eastman Ave [Member] One eight zero zero Eastman Ave. E. Sturgis Road Sturgis Road [Member] Sturgis road. Rice Ave. & Celsius Rice Ave And Celsius [Member] Rice Ave. and Celsius. Hindry Avenue Hindry Avenue [Member] Hindry Avenue. Convoy Court Convoy Court [Member] Convoy court. 12907 Imperial Highway 12907 Imperial Highway [Member] 12907 Imperial Highway [Member] 8902-8940 Activity Rd 8902-8940 Activity Road [Member] 8902-8940 Activity Road [Member] 1210 N Red Gum St 1210 North Red Gum Street [Member] 1210 North Red Gum Street 9615 Norwalk Blvd. 9615 Norwalk Boulevard [Member] 9615 Norwalk Boulevard [Member] 16221 Arthur St. 16221 Arthur Street [Member] 16221 Arthur Street [Member] 2588 & 2605 Industry Way 2588 And 2605 Industry Way [Member] 2588 And 2605 Industry Way [Member] 425 S. Hacienda Blvd. 425 South Hacienda Boulevard [Member] 425 South Hacienda Boulevard [Member] 6700 S Alameda St. 6700 Alameda Street [Member] 6700 Alameda Street [Member] 12720-12860 Danielson Ct. 12720-12860 Danielson Court [Member] 12720-12860 Danielson Court [Member] 10950 Norwalk Blvd & 12241 Lakeland Rd. 10950 Norwalk Blvd And 12241 Lakeland Rd [Member] 10950 Norwalk Blvd And 12241 Lakeland Rd [Member] 610-760 W Hueneme Rd & 5651-5721 Perkins Rd 610-760 W Hueneme Rd And 5651-5721 Perkins Rd [Member] 610-760 W Hueneme Rd And 5651-5721 Perkins Rd [Member] 10701-10719 Norwalk Blvd. 10709-10719 Norwalk Boulevard [Member] 10709-10719 Norwalk Boulevard [Member] 6020 Sheila St. 6020 Sheila Street [Member] 6020 Sheila Street [Member] 9805 6th St. 9805 6th Street [Member] 9805 6th Street [Member] 16321 Arrow Hwy. 16321 Arrow Hwy [Member] 16321 Arrow Hwy [Member] 601-605 S. Milliken Ave. 601-605 Milliken Avenue [Member] 601-605 Milliken Avenue [Member] 1065 E. Walnut Ave. 12247 Lakeland Rd. 12247 Lakeland Road [Member] 12247 Lakeland Road [Member] 17311 Nichols Ln. 17311 Nichols Lane [Member] 17311 Nichols Lane [Member] 20 Icon 20 Icon [Member] 20 Icon [Member] 16425 Gale Avenue 16425 Gale Avenue [Member] 16425 Gale Avenue [Member] 2700_2722 Fairview Street 2700-2722 Fairview Street [Member] 2700-2722 Fairview Street [Member] 12131 Western Avenue 12131 Western Avenue [Member] [Member] 12131 Western Avenue [Member] [Member] 9 Holland 9 Holland [Member] 9 Holland [Member] 15996 Jurupa Avenue 15996 Jurupa Avenue [Member] 15996 Jurupa Avenue [Member] 11127 Catawba Avenue 11127 Catawba Avenue [Member] 11127 Catawba Avenue [Member] 13550 Stowe Drive 13550 Stowe Drive [Member] 13550 Stowe Drive [Member] 3233 Mission Oaks Blvd 3233 Mission Oaks [Member] 3233 Mission Oaks [Member] 1600 Orangethorpe & 1335-1375 Acacia 1600 Orangethorpe, 1335-1375 Acacia [Member] 1600 Orangethorpe, 1335-1375 Acacia 3927 Oceanic Drive 3927 Oceanic Drive in Oceanside, California [Member] 3927 Oceanic Drive in Oceanside, California [Member] 28903-28903 Avenue Paine 28903 to 28903 Avenue Paine [Member] 28903 to 28903 Avenue Paine [Member] 17000 Kingsview Avenue & 800 Sandhill Avenue 17000 Kingsview Avenue and 800 Sandhill Avenue [Member] 17000 Kingsview Avenue and 800 Sandhill Avenue [Member] Location Real Estate And Accumulated Depreciation Location Real estate and accumulated depreciation location. Encumbrances SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances Land, Initial Cost SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land Buildings and Improvements, Initial Cost SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements Buildings and Improvements Costs Capitalized Subsequent to Acquisition SEC Schedule III Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements Land, Gross Amounts SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Land Buildings and Improvements, Gross Amounts SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements Total, Gross SEC Schedule III, Real Estate, Gross Accumulated Depreciation Year Build / Year Renovated Real Estate And Accumulated Depreciation Built Or Renovated Year Real estate and accumulated depreciation built or renovated year. Year Acquired Real Estate And Accumulated Depreciation Year Of Acquisition Real estate and accumulated depreciation year of acquisition. Schedule of Quarterly Information Quarterly Financial Information [Table Text Block] Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Redeemable Convertible Preferred Stock, Series A Series A Preferred Stock [Member] Redeemable Convertible Preferred Stock, Series B Series B Preferred Stock [Member] Statement [Line Items] Statement [Line Items] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Shares authorized (shares) Preferred Stock, Shares Authorized Preferred stock, interest Preferred Stock, Dividend Rate, Percentage Liquidation preference, value Preferred Stock, Liquidation Preference, Value Shares outstanding (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 (shares) Common Stock, Shares Authorized Common stock, shares outstanding (shares) Common Stock, Shares, Outstanding Investment In Real Estate Acquisitions [Table] Investment In Real Estate Acquisitions [Table] Investment in real estate acquisitions. Noncontrolling Interests Noncontrolling Interest [Member] 12.5% Preferred Stock 12.5 Percent Preferred Stock [Member] 12.5 Percent Preferred Stock Disclosure Investment In Real Estate Acquisitions Additional Information Detail [Line Items] Disclosure Investment In Real Estate Acquisitions Additional Information Detail [Line Items] Percentage of voting interests acquired Business Acquisition, Percentage of Voting Interests Acquired Preferred stock issued (shares) Preferred Stock, Shares Issued Preferred stock, redemption price per share (in dollars per share) Preferred Stock, Redemption Price Per Share Redemption of preferred stock in connection with liquidation of private REIT Preferred Stock, Redemptions Due to Liquidation of Private REIT Redemption of shares of preferred stock in connection with the liquidation of private REIT. Debt Instrument [Table] Schedule of Long-term Debt Instruments [Table] Extinguishment of Debt [Axis] Extinguishment of Debt [Axis] Extinguishment of Debt, Type [Domain] Extinguishment of Debt, Type [Domain] Prepayment Fees Prepayment Fees [Member] Prepayment Fees [Member] Debt Premium Write Off Debt Premium Write Off [Member] Debt Premium Write Off [Member] 1065 Walnut Street 1065 Walnut Street [Member] 1065 Walnut Street [Member] Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period [Domain] Prepayment prior to January 14, 2017 Debt Instrument, Redemption, Period One [Member] Prepayment January 14, 2017 to January 14, 2018 Debt Instrument, Redemption, Period Two [Member] Gilbert Street La Palma Avenue Real Estate Property Ownership Real Estate Property Ownership [Axis] Real Estate Properties Real Estate Properties [Domain] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Unsecured Credit Facility Unsecured Credit Facility [Member] Unsecured credit facility. Mortgages Mortgages [Member] Revolving Credit Facility Revolving Credit Facility [Member] Base Rate Base Rate [Member] Eurodollar Eurodollar [Member] Federal Funds Rate Federal Funds Effective Swap Rate [Member] Term Loan Facility Term Loan Facility [Member] Term loan facility. Amended Facility Amended Facility [Member] Amended facility. Senior Notes Senior Notes [Member] Line of Credit Line of Credit [Member] Fixed Rate Debt Fixed Rate Debt [Member] Fixed rate debt. 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. 300 Million Credit Facility 300 Million Credit Facility [Member] 300 Million Credit Facility [Member] Term Loan One Term Loan One [Member] Term loan one. 60 Million Term Loan Facility 60 Million Term Loan Facility [Member] Term loan facility. 225 Million Term Loan Facility 225 Million Term Loan Facility [Member] 225 Million Term Loan Facility Debt Instrument [Line Items] Debt Instrument [Line Items] Amortization period Amortization Table Period Amortization table period. Repayments of secured debt Repayments of Secured Debt Debt extinguishment costs Debt Extinguishment Costs Debt Extinguishment Costs Amended facility maximum future borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Number of extensions Line Of Credit Facility, Number Of Extensions Line Of Credit Facility, Number Of Extensions Extension duration period Line Of Credit Facility, Extension Duration Period Line Of Credit Facility, Extension Duration Period Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Basis spread on variable rate investment grade rating pricing structure 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. Additional interest Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Commitment fee percentage investment grade rating pricing structure 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 Fixed interest rate Debt Instrument, Interest Rate, Stated Percentage Prepayment of principal, minimum amount Debt Instrument, Prepayment Of Principal, Minimum Amount Debt Instrument, Prepayment Of Principal, Minimum Amount Principal prepayment percentage Principal Prepayment Percentage Principal Prepayment Percentage Current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Number of additional incremental loans Debt Instrument, Number Of Additional Incremental Loans Debt Instrument, Number Of Additional Incremental Loans Prepayment premium, percent Debt Instrument, Prepayment Premium, Percent Debt Instrument, Prepayment Premium, Percent 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. Maximum debt to tangible net worth ratio required for equity proceeds 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. Maximum distribution amount per Credit Facility, percent Debt Instrument, Covenant Compliance, Maximum Distribution Amount, Percent Debt Instrument, Covenant Compliance, Maximum Distribution Amount, Percent 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. Unencumbered liquid assets Minimum Unencumbered Liquid Assets The lowest amount of unencumbered liquid assets required for compliance purposes. Long-term line of credit availability Minimum Unencumbered Liquid Assets Including Line Of Credit The lowest amount of unencumbered liquid assets if including line of credit availability required for compliance purposes. Unencumbered liquid assets cash and cash equivalents Unencumbered Liquid Assets Cash And Cash Equivalents Unencumbered liquid assets cash and cash equivalents. Minimum fair market net worth Minimum Net Worth Required for Compliance 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. Summary of Notes Payable Schedule of Debt [Table Text Block] Summary of Aggregate Future Minimum Payments of Debt Schedule of Maturities of Long-term Debt [Table Text Block] Interest Rate Swap 1 Interest Rate Swap One [Member] Interest rate swap one. Interest Rate Swap 2 Interest Rate Swap Two [Member] Interest rate swap two. Interest Rate Swap 3 Interest Rate Swap Three [Member] Interest rate swap three. Interest Rate Swap 4 Interest Rate Swap Four [Member] Interest rate swap four. Interest Rate Swap 6 Interest Rate Swap Six [Member] Interest Rate Swap Six Effective Date Derivative, Inception Date Maturity Date Derivative, Maturity Date Interest Strike Rate Asset, Fair Value Asset, Current Notional Amount Derivative Asset, Notional Amount Liability, Fair Value Liability, Current Notional Amount Derivative Liability, Notional Amount Total revenues Net operating income Operating Income (Loss) Net income attributable to common stockholders Net income attributable to common stockholders per share - basic (in dollars per share) Net income attributable to common stockholders per share - diluted (in dollars per share) Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Summary of the Components of Changes in Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]