Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Derivative, by Nature [Axis] Derivative Instrument [Axis] Derivative, Name [Domain] Derivative Contract [Domain] Interest Rate Swap [Member] Interest Rate Swap [Member] Derivative [Line Items] Derivative [Line Items] Number of Instruments Number of Interest Rate Derivatives Held Notional Amount Derivative, Notional Amount Equity [Abstract] Quarterly dividend of common stock declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Annualized dividend rate (in dollars per share) Dividends, Authorized Annual Dividends, Per Share Dividends, Authorized Annual Dividends, Per Share Investments, Debt and Equity Securities [Abstract] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] CMBS [Member] Commercial Mortgage Backed Securities [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Number of securities owned Available-for-Sale Securities, Number of Positions Available-for-Sale Securities, Number of Positions Investment securities, at fair value Available-for-sale Securities, Debt Securities Number of securities matured Available for Sale Securities, Number of Positions Matured Available for Sale Securities, Number of Positions Matured Proceeds from investments at maturity Proceeds from Sale and Maturity of Available-for-sale Securities and Other Assets Proceeds from Sale and Maturity of Available-for-sale Securities and Other Assets Interest rate Available for Sale Securities, Interest Rate Available for Sale Securities, Interest Rate Number of securities with fair value below amortized cost Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Other-than-temporary impairment losses Other than Temporary Impairment Losses, Investments, Available-for-sale Securities Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] VEREIT Operating Partnership, L.P. [Member] VEREIT Operating Partnership, L.P. [Member] VEREIT Operating Partnership, L.P. [Member] Partner Capital Components [Axis] Partner Capital Components [Axis] Partner Capital Components [Domain] Partner Capital Components [Domain] Common Stock [Member] Common Stock [Member] Partner Type [Axis] Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] General Partner [Member] General Partner [Member] Class of Stock [Line Items] Class of Stock [Line Items] Common stock, shares authorized (shares) Common Stock, Shares Authorized Common stock, shares outstanding (shares) Common Stock, Shares, Outstanding Common stock, shares issued (shares) Common Stock, Shares, Issued General partners', units outstanding (shares) General Partners' Capital Account, Units Outstanding General partners', units issued (shares) General Partners' Capital Account, Units Issued Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Convertible Debt [Member] Convertible Debt [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2018 Convertible Notes [Member] Three Percent Convertible Notes Due 2018 [Member] Three Percent Convertible Notes Due 2018 [Member] 2020 Convertible Notes [Member] Three Point Seventy Five Convertible Notes Due 2020 [Member] Three Point Seventy Five Convertible Notes Due 2020 [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Outstanding Balance Long-term Debt, Gross Interest Rate Debt Instrument, Interest Rate, Stated Percentage Weighted-average interest rate Debt, Weighted Average Interest Rate Conversion Rate Debt Instrument, Convertible, Conversion Ratio Carrying value conversion options in additional paid-in capital Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature Unamortized discount Debt Instrument, Unamortized Discount (Premium), Net Remaining amortization period Debt Instrument, Convertible, Remaining Discount Amortization Period Amount of General Partner OP Units per principal amount Debt Instrument, Convertible, Conversion Ratio, Principal Amount Debt Instrument, Convertible, Conversion Ratio, Principal Amount Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Number of properties secured by mortgage loan Number of Properties with Mortgage Note Payable Number of Properties with Mortgage Note Payable Mortgage loan foreclosure, outstanding balance Mortgage Loans in Process of Foreclosure, Amount Gain (loss) on extinguishment and forgiveness of debt, net Gains (Losses) on Extinguishment and Forgiveness of Debt Gains (Losses) on Extinguishment and Forgiveness of Debt Statement of Comprehensive Income [Abstract] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized gain on interest rate derivatives Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Reclassification of previous unrealized loss on interest rate derivatives into net income Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Unrealized loss on investment securities, net Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Total other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive loss (income) attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Total comprehensive income attributable to the General Partner / OP Comprehensive Income (Loss), Net of Tax, Attributable to Parent Equity Stockholders' Equity Note Disclosure [Text Block] Receivables [Abstract] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Mortgage notes receivable [Member] Mortgage Receivable [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Outstanding Balance Loans and Leases Receivable, Gross Carrying Value Loans and Leases Receivable, Net Amount Interest Rate Range Loans Receivable, Stated Interest Rate Loans Receivable, Stated Interest Rate Fair Value Disclosures [Abstract] Fair Value Measures Fair Value Disclosures [Text Block] Real Estate [Abstract] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Joint ventures [Member] Variable Interest Entity, Primary Beneficiary [Member] Real Estate Property Ownership [Axis] Real Estate Property Ownership [Axis] Real Estate Properties [Domain] Real Estate Properties [Domain] Consolidated Properties [Member] Consolidated Properties [Member] Mortgages [Member] Mortgages [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Number of joint ventures Number of Consolidated Joint Ventures Number of Consolidated Joint Ventures Number of properties owned Number of Real Estate Properties Total assets Assets Real estate investments, net Real Estate Investment Property, Net Net income (loss) attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Number of joint ventures disposed of Number of Real Estate Properties Disposed Number of Real Estate Properties Disposed Discontinued Operations and Disposal Groups [Abstract] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Cole Capital [Member] Cole Capital [Member] Cole Capital [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Held-for-sale of Disposed of by Sale [Member] Discontinued Operations, Held-for-sale or Disposed of by Sale [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] Offering-related fees and reimbursements Disposal Group, Including Discontinued Operation, Offering Related Fees and Reimbursements Disposal Group, Including Discontinued Operation, Offering Related Fees and Reimbursements Transaction service fees and reimbursements Disposal Group, Including Discontinued Operation, Gross Transaction Service Revenue Disposal Group, Including Discontinued Operation, Gross Transaction Service Revenue Management fees and reimbursements Disposal Group, Including Discontinued Operation, Gross Management Service Revenues Disposal Group, Including Discontinued Operation, Gross Management Service Revenues Total revenues Disposal Group, Including Discontinued Operation, Revenue Cole Capital reallowed fees and commissions Disposal Group, Including Discontinued Operation, Fees and Commissions Disposal Group, Including Discontinued Operation, Fees and Commissions Transaction costs Disposal Group, Including Discontinued Operation, Non-Deductible Transaction Costs Expense (Income) Disposal Group, Including Discontinued Operation, Non-Deductible Transaction Costs Expense (Income) General and administrative Disposal Group, Including Discontinued Operation, General and Administrative Expense Amortization of intangible assets Disposal Group, Including Discontinued Operation, Depreciation and Amortization Total operating expenses Disposal Group, Including Discontinued Operation, Operating Expense Operating income Disposal Group, Including Discontinued Operation, Operating Income (Loss) Other income (expense), net Disposal Group, Including Discontinued Operation, Other Income (Expense), Net Disposal Group, Including Discontinued Operation, Other Income (Expense), Net Loss on disposition Disposal Group, Including Discontinued Operation, Loss Recognized, Classified as Held for Sale Disposal Group, Including Discontinued Operation, Loss Recognized, Classified as Held for Sale Income before taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Benefit from (provision for) income taxes Discontinued Operation, Tax Effect of Discontinued Operation Income from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivative Instrument [Axis] Derivative Contract [Domain] Interest Rate Swap [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Rent and Tenant Receivables and Other Assets, Net [Member] Rent and Tenant Receivables and Other Assets, Net [Member] Rent and Tenant Receivables and Other Assets, Net [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Derivative assets Derivative Asset Common stock repurchases (shares) Stock Repurchased During Period, Shares Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Cole Real Estate Investments, Inc. [Member] Cole Real Estate Investments, Inc. [Member] Cole Real Estate Investments, Inc. [Member] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Cole REITs [Member] Managed Real Estate Investment Trusts [Member] Managed Real Estate Investment Trusts [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Equity in income (loss) and gain on disposition of unconsolidated entities Income (Loss) from Equity Method Investments and Realized Gain (Loss) on Disposal Income (Loss) from Equity Method Investments and Realized Gain (Loss) on Disposal Aggregate equity investments Other Investments Gain included in other income, net Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Net loss Income (Loss) from Equity Method Investments 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] Depreciation and amortization Depreciation, Depletion and Amortization Gain on real estate assets and joint venture, net Gains (Losses) on Sales of Investment Real Estate And Disposal of Discontinued Operations Gains (Losses) on Sales of Investment Real Estate And Disposal of Discontinued Operations Impairments Asset Impairment Charges Including Disposal Group and Discontinued Operations Asset Impairment Charges Including Disposal Group and Discontinued Operations Equity-based compensation Share-based Compensation Equity in (income) loss of unconsolidated entities Distributions from unconsolidated entities Proceeds from Equity Method Investment, Distribution Gain on investments Gain (Loss) on Investments Gain on derivative instruments, net Gain (Loss) on Extinguishment of Derivative Instruments, Net, Pretax Gain (Loss) on Extinguishment of Derivative Instruments, Net, Pretax Loss on extinguishment and forgiveness of debt, net Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Investment in direct financing leases Increase (Decrease) in Leasing Receivables Rent and tenant receivables and other assets, net Increase (Decrease) in Rent and Tenant Receivables and Other Assets, Net Increase (Decrease) in Rent and Tenant Receivables and Other Assets, Net Assets held for sale classified as discontinued operations Increase (Decrease) in Assets Held-for-sale Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Deferred rent, derivative and other liabilities Increase (Decrease) in Deferred Revenue, Derivative Liabilities, and Other Liabilities Increase (Decrease) in Deferred Revenue, Derivative Liabilities, and Other Liabilities Due to affiliates Increase (Decrease) in Due to Affiliates Liabilities related to discontinued operations Increase (Decrease) in Liabilities Related to Discontinued Operations Increase (Decrease) in Liabilities Related to Discontinued Operations 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] Investments in real estate assets Payments to Acquire Productive Assets Capital expenditures and leasing costs Payments for Capital Improvements Real estate developments Payments to Develop Real Estate Assets Principal repayments received on investment securities and mortgage notes receivable Proceeds from Collection of Notes Receivable Return of investment from unconsolidated entities Proceeds from Equity Method Investment, Distribution, Return of Capital Proceeds from disposition of real estate and joint venture Proceeds from Sale of Real Estate Held-for-investment Proceeds from disposition of discontinued operations Proceeds from Divestiture of Businesses and Interests in Affiliates Investment in leasehold improvements and other assets Payments to Leasehold Improvements and Other Assets Payments to Leasehold Improvements and Other Assets Deposits for real estate assets Payments for Deposits on Real Estate Acquisitions Proceeds from sale of investments and other assets Uses and refunds of deposits for real estate assets Proceeds or Uses from Deposits on Real Estate Acquisitions Proceeds or Uses from Deposits on Real Estate Acquisitions Proceeds from the settlement of property-related insurance claims Proceeds from Insurance Settlement, Investing Activities Line of credit advances to Cole REITs Payments for (Proceeds from) Loans Receivable Line of credit repayments from Cole REITs Proceeds from Collection of Advance to Affiliate Net cash provided by investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from mortgage notes payable Proceeds from Issuance of Secured Debt Payments on mortgage notes payable and other debt, including debt extinguishment costs Repayments of Secured Debt Proceeds from credit facility Proceeds from Long-term Lines of Credit Payments on credit facility Repayments of Long-term Lines of Credit Payments of deferred financing costs Payments of Financing Costs Repurchases of common stock under the Share Repurchase Program Payments for Repurchase of Common Stock Under Share Repurchase Program Payments for Repurchase of Common Stock Under Share Repurchase Program Repurchases of common stock to settle tax obligations Payments for Repurchase of Common Stock Distributions paid Payments of Dividends Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net change in cash and cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents and restricted cash, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Less: cash and cash equivalents of discontinued operations Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Disposal Group, Including Discontinued Operations Cash and cash equivalents and restricted cash from continuing operations, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Restricted cash at beginning of period Restricted Cash Cash and cash equivalents, and restricted cash, end of period Less: cash and cash equivalents of discontinued operations Cash and cash equivalents at end of period Restricted cash at end of period Cash and cash equivalents and restricted cash from continuing operations, end of period Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Schedule of Interest Rate Derivatives Schedule of Interest Rate Derivatives [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Offsetting Assets Offsetting Assets [Table Text Block] Schedule of Offsetting Liabilities Offsetting Liabilities [Table Text Block] Effect of Hedging Activities in Statements of Operations Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Investment Securities, at Fair Value Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Accounting Policies [Abstract] Basis of Accounting Basis of Accounting, Policy [Policy Text Block] Principles of Consolidation and Basis of Presentation Consolidation, Policy [Policy Text Block] Reclassification Reclassification, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Litigation and Other Non-routine Costs, Net of Insurance Recoveries Business Combinations and Other Purchase of Business Transactions, Policy [Policy Text Block] Investment in Cole REITs Equity Method Investments [Policy Text Block] Equity-based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Future Minimum Operating Lease Base Rent Payments Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Future Minimum Direct Financing Lease Payments Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block] Schedule of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Intangible Liabilities Schedule of Finite Lived Intangible Liabilities [Table Text Block] Schedule of Finite Lived Intangible Liabilities [Table Text Block] Schedule of Amortization Expense and Adjustments to Rental Income Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Derivatives and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Future Minimum Operating Lease Base Rent Payments Operating Leases, Future Minimum Payments Receivable [Abstract] April 1, 2018 - December 31, 2018 Operating Leases, Future Minimum Payments Receivable, Remainder of Fiscal Year 2019 Operating Leases, Future Minimum Payments Receivable, in Two Years 2020 Operating Leases, Future Minimum Payments Receivable, in Three Years 2021 Operating Leases, Future Minimum Payments Receivable, in Four Years 2022 Operating Leases, Future Minimum Payments Receivable, in Five Years Thereafter Operating Leases, Future Minimum Payments Receivable, Thereafter Total Operating Leases, Future Minimum Payments Receivable Future Minimum Direct Financing Lease Payments Capital Leases, Future Minimum Payments Receivable, Fiscal Year Maturity [Abstract] April 1, 2018 - December 31, 2018 Capital Leases, Future Minimum Payments Receivable, Remainder of Fiscal Year 2019 Capital Leases, Future Minimum Payments, Receivable in Two Years 2020 Capital Leases, Future Minimum Payments, Receivable in Three Years 2021 Capital Leases, Future Minimum Payments, Receivable in Four Years 2022 Capital Leases, Future Minimum Payments, Receivable in Five Years Thereafter Capital Leases, Future Minimum Payments, Receivable Thereafter Total Capital Leases, Future Minimum Payments Receivable Number of properties subject to direct financing leases Capital Leased Assets, Number of Units Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Fixed-rate debt [Member] Fixed Rate Debt [Member] Fixed Rate Debt [Member] Variable-rate debt [Member] Variable Rate Debt [Member] Variable Rate Debt [Member] Weighted-Average [Member] Weighted Average [Member] Encumbered Properties Gross Carrying Value of Collateralized Properties Debt Instrument, Collateral Amount Weighted-Average Interest Rate Weighted-Average Years to Maturity Debt Instrument, Term Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] CCIT II [Member] CCIT II [Member] CCIT II [Member] CCPT V [Member] CCPT V [Member] CCPT V [Member] CCIT III [Member] CCIT III [Member] CCIT III [Member] 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] Reported Value Measurement [Member] Reported Value Measurement [Member] Estimate of Fair Value Measurement [Member] Estimate of Fair Value Measurement [Member] Weighted Average [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] Shares redeemed (in shares) Stock Redeemed or Called During Period, Shares Number of years to commence liquidity event Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period Properties impaired Number of Impaired Properties Number of Impaired Properties Carrying value of real estate assets deemed to be impaired Real Estate Investment Property, Net, Impaired Real Estate Investment Property, Net, Impaired Estimated fair value of real estate assets deemed to be impaired Real Estate Investment Property, Net, Carrying Value of Impaired Property Real Estate Investment Property, Net, Carrying Value of Impaired Property Impairment charges Impairment of Real Estate Discount rates Fair Value Inputs, Discount Rate Capitalization rates Fair Value Inputs, Cap Rate Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series F Preferred Stock [Member] Series F Preferred Stock [Member] Preferred Units [Member] Preferred Stock [Member] Preferred stock, shares issued (shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (shares) Preferred Stock, Shares Outstanding Series F preferred units (shares) Limited Partners' Capital Account, Units Issued Limited partners', units outstanding (shares) Limited Partners' Capital Account, Units Outstanding Preferred stock, dividend rate (percent) Preferred Stock, Dividend Rate, Percentage Preferred stock, liquidation preference per share (in dollars per share) Preferred Stock, Liquidation Preference Per Share Dividend rate (in dollars per share) Preferred Stock, Dividend Rate, Per-Dollar-Amount Related Party Transactions and Arrangements Related Party Transactions Disclosure [Text Block] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Excluding balances from Cole REITs [Member] Excluding Line of Credit Transactions Related to Managed Real Estate Investment Trusts [Member] Excluding Line of Credit Transactions Related to Managed Real Estate Investment Trusts [Member] CCI III OP [Member] Corporate Income Operating Partnership Three [Member] Corporate Income Operating Partnership Three [Member] Credit Facility [Member] Line of Credit [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR [Member] London Interbank Offered Rate (LIBOR) [Member] Due from affiliates, net Due from Affiliates Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Variable interest rate Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Interest rate Debt Instrument, Interest Rate, Effective Percentage Amortized Cost Available-for-sale Debt Securities, Amortized Cost Basis Gross Unrealized Gains Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax Fair Value Earnings Per Share [Abstract] Summary of Basic and Diluted Net Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Payables and Accruals [Abstract] Accounts Payable and Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Schedule of Rent and Tenant Receivables and Other Assets, Net Schedule of Tenant Receivables and Other Assets, Net [Table Text Block] Schedule of Tenant Receivables and Other Assets, Net [Table Text Block] Income Statement [Abstract] Revenues: Revenues [Abstract] Rental income Operating Leases, Income Statement, Lease Revenue Operating expense reimbursements Tenant Reimbursements Total revenues Revenues Operating expenses: Operating Expenses [Abstract] Acquisition-related Business Combination, Acquisition Related Costs Litigation and other non-routine costs, net of insurance recoveries Litigation, Merger and Other Non-Routine Costs, Net of Insurance Recoveries Litigation, Merger and Other Non-Routine Costs, Net of Insurance Recoveries Property operating Owned Property Management Costs General and administrative General and Administrative Expense Depreciation and amortization Depreciation, Depletion and Amortization, Excluded Allocated To Operating Expenses Depreciation, Depletion and Amortization, Excluded Allocated To Operating Expenses Impairments Asset Impairment Charges Total operating expenses Operating Expenses Operating income Operating Income (Loss) Other (expense) income: Other Income and Expenses [Abstract] Interest expense Interest Income (Expense), Net Loss on extinguishment and forgiveness of debt, net Gain (Loss) on Extinguishment of Debt Other income, net Other Nonoperating Income (Expense) Gain on derivative instruments, net Gain (Loss) on Derivative Instruments, Net, Pretax Total other expenses, net Nonoperating Income (Expense) Income before taxes and real estate dispositions Income (Loss) before Gain (Loss) on Sale of Properties and Income Taxes Income (Loss) before Gain (Loss) on Sale of Properties and Income Taxes Gain on disposition of real estate and real estate assets held for sale, net Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes Income before taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income from discontinued operations, net of income taxes Net income (loss) Net loss (income) attributable to non-controlling interests Net income attributable to the General Partner Net Income (Loss) Attributable to Parent Basic and diluted net income (loss) per share from continuing operations attributable to common stockholders (in dollars per share) Income (Loss) from Continuing Operations, Per Basic and Diluted Share Basic and diluted net income per share from discontinued operations attributable to common stockholders (in dollars per share) Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic and Diluted Share Basic and diluted net income per share attributable to common stockholders (in dollars per share) Earnings Per Share, Basic and Diluted Basic and diluted net income per unit from continuing operations attributable to common unitholders (in dollars per share) Income (Loss) from Continuing Operations, Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax Basic and diluted net income per unit from discontinued operations attributable to common unitholders (in dollars per share) Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted Basic and diluted net income per unit attributable to common unitholders (in dollars per share) Net Income (Loss), Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax Distributions declared per common share / unit (in dollars per share) Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [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 leases and other intangible assets [Member] Leases, Acquired-in-Place and Other Intangibles [Member] Leases, Acquired-in-Place and Other Intangibles [Member] Leasing Commissions [Member] Leasing Commissions [Member] Leasing Commissions [Member] Above-Market Leases [Member] Above Market Leases [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Intangible lease assets: Finite-Lived Intangible Assets, Net [Abstract] Weighted-Average Useful Life Finite-Lived Intangible Asset, Useful Life Intangible lease assets, net Finite-Lived Intangible Assets, Net Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible lease liabilities: Below Market Lease, Net [Abstract] Accumulated amortization Below Market Lease, Accumulated Amortization Weighted-Average Useful Life Below Market Lease, Weighted Average Useful Life Below Market Lease, Weighted Average Useful Life Intangible lease liabilities, net Below Market Lease, Net Schedule of assets and liabilities measured at fair value on a recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Reconciliations of the changes in liabilities with Level 3 inputs Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Reconciliations of the changes in assets with Level 3 inputs Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Fair value, by balance sheet grouping Fair Value, by Balance Sheet Grouping [Table Text Block] Summary of impairment charges by asset class Impaired Assets to be Disposed of by Method Other than Sale [Table Text Block] 2019 Senior Notes [Member] Three Percent Senior Notes Due 2019 [Member] Three Percent Senior Notes Due 2019 [Member] 2021 Senior Notes [Member] Four Point One Two Five Percent Senior Notes Due 2021 [Member] Four Point One Two Five Percent Senior Notes Due 2021 [Member] 2024 Senior Notes [Member] Four Point Six Percent Senior Notes Due 2024 [Member] Four Point Six Percent Senior Notes Due 2024 [Member] 2026 Senior Notes [Member] Four Point Eight Seven Five Percent Senior Notes Due 2026 [Member] Four Point Eight Seven Five Percent Senior Notes Due 2026 [Member] 2027 Senior Notes [Member] Three Point Nine Five Percent Senior Notes Due 2027 [Member] Three Point Nine Five Percent Senior Notes Due 2027 [Member] Corporate Bonds [Member] Unsecured Debt [Member] Maximum number of days prior to maturity date Debt Instrument, Redemption Period, Maximum Number of Days Prior to Maturity Date Debt Instrument, Redemption Period, Maximum Number of Days Prior to Maturity Date Redemption price, percentage of principal Debt Instrument, Redemption Price, Percentage Covenant terms, maximum limitation on incurrence of total debt, percentage of total assets Debt Instrument, Covenant Terms, Maximum Limitation on Incurrence of Total Debt, Percentage of Total Assets Debt Instrument, Covenant Terms, Maximum Limitation on Incurrence of Total Debt, Percentage of Total Assets Covenant terms, maximum limitation on incurrence of secured debt, percentage of total assets Debt Instrument, Covenant Terms, Maximum Limitation on Incurrence of Secured Debt, Percentage of Total Assets Debt Instrument, Covenant Terms, Maximum Limitation on Incurrence of Secured Debt, Percentage of Total Assets Covenant terms, minimum debt service coverage ratio Debt Instrument, Covenant Terms, Minimum Debt Service Coverage Ratio Debt Instrument, Covenant Terms, Minimum Debt Service Coverage Ratio Covenant terms, minimum unencumbered asset value, percentage Debt Instrument, Covenant Terms, Minimum Unencumbered Asset Value, Percentage Debt Instrument, Covenant Terms, Minimum Unencumbered Asset Value, Percentage Amortized Cost Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] Due within one year Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis Due after one year through five years Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Amortized Cost Basis Due after five years through 10 years Available-for-sale Securities, Debt Maturities, Rolling Year Six Through Ten, Amortized Cost Basis Due after 10 years Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Amortized Cost Basis Fair Value Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] Due within one year Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value Due after one year through five years Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Fair Value Due after five years through 10 years Available-for-sale Securities, Debt Maturities, Rolling Year Six Through Ten, Fair Value Due after 10 years Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Fair Value Total Schedule of Debt Schedule of Debt [Table Text Block] Schedule of Aggregate Principal Payments of Mortgages Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Supplemental Cash Flow Elements [Abstract] Supplemental Cash Flow Disclosures Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Net Income (Loss) Per Share/Unit Earnings Per Share [Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Audit Committee Investigation [Member] Audit Committee Investigation [Member] Audit Committee Investigation [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] SDNY Actions [Member] Southern District of New York Action [Member] Southern District of New York Action [Member] Putative Class Action [Member] Putative Class Action [Member] Putative Class Action [Member] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending Litigation [Member] Pending Litigation [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of individuals in civil complaint Loss Contingency, Number of Defendants Number of claims Loss Contingency, Pending Claims, Number Stipulation of settlement, maximum attorney fees Litigation Settlement, Stipulation of Settlement, Expense, Maximum Litigation Settlement, Stipulation of Settlement, Expense, Maximum Litigation and other non-routine costs: Other Non-Routine Costs [Abstract] Other Non-Routine Costs [Abstract] Audit Committee Investigation and related matters Other Non-Routine Costs, Audit Committee Investigation and Related Litigation Other Non-Routine Costs, Audit Committee Investigation and Related Litigation Legal fees and expenses Other Non-Routine Costs, Legal Fees And Expenses Other Non-Routine Costs, Legal Fees And Expenses Total costs incurred Other Non-Routine Costs Other Non-Routine Costs Insurance recoveries Other Non-Routine Costs, Insurance Recoveries Other Non-Routine Costs, Insurance Recoveries Total Other Non-Routine Costs, Net of Insurance Recoveries Other Non-Routine Costs, Net of Insurance Recoveries Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Accounting Changes and Error Corrections [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-01 [Member] Accounting Standards Update 2016-01 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Gain (loss) on investments Goodwill Goodwill Value of stock authorized for repurchase under stock repurchase program (up to) Stock Repurchase Program, Authorized Amount Unconsolidated Property Dispositions, 2018 [Member] Unconsolidated Property Dispositions, 2018 [Member] Unconsolidated Property Dispositions, 2018 [Member] Unconsolidated Properties [Member] Unconsolidated Properties [Member] Unconsolidated Joint Venture [Member] Unconsolidated Joint Venture [Member] Unconsolidated Joint Venture [Member] Number of disposed properties owned by unconsolidated joint ventures Number of Unconsolidated Joint Ventures Disposed of Number of Unconsolidated Joint Ventures Disposed of Investment in unconsolidated entities Equity Method Investments Number of unconsolidated joint ventures Number of Unconsolidated Joint Ventures Number of Unconsolidated Joint Ventures % of Outstanding Shares Owned Equity Method Investment, Ownership Percentage Net (loss) income Underlying equity in net assets Equity Method Investment, Underlying Equity in Net Assets Debt Debt Disclosure [Text Block] Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Supplemental Cash Flow Disclosures Cash Flow, Supplemental Disclosures [Text Block] Statement of Stockholders' Equity [Abstract] Total Partners' Capital [Member] Parent [Member] Common Units [Member] Non-Controlling Interests [Member] Noncontrolling Interest [Member] Limited Partner [Member] Limited Partner [Member] Increase (Decrease) in Partners' Capital [Roll Forward] Increase (Decrease) in Partners' Capital [Roll Forward] Beginning balance (shares) Partners' Capital Account, Units Beginning balance Partners' Capital, Including Portion Attributable to Noncontrolling Interest Repurchases of common stock under Share Repurchase Program Stock Repurchased During Period Under Stock Repurchase Program, Shares Stock Repurchased During Period Under Stock Repurchase Program, Shares Repurchases of common stock under the Share Repurchase Program Stock Repurchased During Period Under Stock Repurchase Program, Value Stock Repurchased During Period Under Stock Repurchase Program, Value Repurchases of Common OP Units to settle tax obligation (shares) Repurchases of common OP Units to settle tax obligation Stock Repurchased During Period, Value Equity-based compensation, net (shares) Partners' Capital Adjustments, Share-based Compensation, Requisite Service Period Recognition, Units Partners' Capital Adjustments, Share-based Compensation, Requisite Service Period Recognition, Units Equity-based compensation, net Partners' Capital Account, Share-based Compensation, Requisite Service Period Recognition Partners' Capital Account, Share-based Compensation, Requisite Service Period Recognition Distributions to Common OP Units and non-controlling interest holders Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Distributions to Preferred OP Units Dividends, Preferred Stock Other comprehensive loss Ending balance (shares) Ending balance Cash flows used in operating activities Cash Provided by (Used in) Operating Activities, Discontinued Operations Cash flows from investing activities Cash Provided by (Used in) Investing Activities, Discontinued Operations Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities Due to affiliates Due to Affiliate Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] The Share Repurchase Program [Member] The Share Repurchase Program [Member] The Share Repurchase Program [Member] Schedule of Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Unrecorded Unconditional Purchase Obligation [Table] Unrecorded Unconditional Purchase Obligation [Table] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Purchase Commitment [Member] Real Estate Investments Purchase Commitments [Member] Real Estate Investments Purchase Commitments [Member] Unrecorded Unconditional Purchase Obligation [Line Items] Unrecorded Unconditional Purchase Obligation [Line Items] Number of purchase and sale agreements Number of Purchase Commitments Number of Purchase Commitments Percentage of voting interests acquired Purchase Commitment, Percentage Of Voting Interests Acquired Purchase Commitment, Percentage Of Voting Interests Acquired Number of properties acquired Number of Businesses Acquired Aggregate purchase price Purchase Commitment, Aggregate Purchase Price Purchase Commitment, Aggregate Purchase Price Escrow deposits Escrow Deposit Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Restricted Stock and Restricted Stock Units (RSUs) [Member] Restricted Shares and Restricted Stock Units (RSUs) [Member] Restricted Shares and Restricted Stock Units (RSUs) [Member] Restricted Stock [Member] Restricted Stock [Member] Limited Partner Common Stock Units [Member] Limited Partner Common Stock Units [Member] Limited Partner Common Stock Units [Member] Employee Stock Option [Member] Employee Stock Option [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive securities excluded from computation of earnings per share (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Gross Amounts of Recognized Assets Derivative Asset, Fair Value, Gross Asset Gross Amounts of Recognized Liabilities Derivative Liability, Fair Value, Gross Liability Gross Amounts Offset in the Consolidated Balance Sheets Derivative, Fair Value, Net Net Amounts of Assets Presented in the Consolidated Balance Sheets Net Amounts of Liabilities Presented in the Consolidated Balance Sheets Derivative Liability Financial Instruments Derivative Collateral, Obligation to Return (Right to Reclaim) Securities Derivative Collateral, Obligation to Return (Right to Reclaim) Securities Cash Collateral Received Derivative Collateral, Obligation to Return (Right to Reclaim) Cash Derivative Collateral, Obligation to Return (Right to Reclaim) Cash Net Amount Derivative, Fair Value, Amount Offset Against Collateral, Net Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] General and Administrative Expense [Member] General and Administrative Expense [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Time-Based Restricted Stock Units [Member] Time-Based Restricted Stock Units [Member] Time-Based Restricted Stock Units [Member] Long Term Incentive Target Awards [Member] Long Term Incentive Target Awards [Member] Long Term Incentive Target Awards [Member] Deferred Stock Units [Member] Deferred Stock Units [Member] Deferred Stock Units [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Equity Plan [Member] Equity Plan [Member] The grant of stock options, restricted shares of common stock, restricted stock units, dividend equivalent rights and other equity-based awards Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Cumulative Restricted share awards (shares) Stock Issued During Period, Shares, Share-based Compensation, Cumulative Restricted Shares, Gross Stock Issued During Period, Shares, Share-based Compensation, Cumulative Restricted Shares, Gross Cumulative Restricted share awards forfeited (shares) Stock Issued During Period, Shares, Share-based Compensation, Cumulative Restricted Shares, Forfeited Stock Issued During Period, Shares, Share-based Compensation, Cumulative Restricted Shares, Forfeited Cumulative Restricted Stock Units (shares) Stock Issued During Period, Shares, Share-based Compensation, Cumulative Restricted Stock Units, Gross Stock Issued During Period, Shares, Share-based Compensation, Cumulative Restricted Stock Units, Gross Cumulative Restricted Stock Units forfeited (shares) Stock Issued During Period, Shares, Share-based Compensation, Cumulative Restricted Stock Units, Forfeited Stock Issued During Period, Shares, Share-based Compensation, Cumulative Restricted Stock Units, Forfeited Cumulative Deferred Stock Units (shares) Stock Issued During Period, Shares, Share-based Compensation, Cumulative Deferred Stock Units, Gross Stock Issued During Period, Shares, Share-based Compensation, Cumulative Deferred Stock Units, Gross Cumulative Stock Options (shares) Stock Issued During Period, Shares, Share-based Compensation, Cumulative Stock Option Units, Gross Stock Issued During Period, Shares, Share-based Compensation, Cumulative Stock Option Units, Gross Shares issued in period (shares) Stock Issued During Period, Shares, Share-based Compensation, Gross Compensation expense Allocated Share-based Compensation Expense Unrecognized compensation expense Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options Weighted-average remaining term (years) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Above-Market Lease Assets [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] 2018 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 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 Below-market lease liabilities: 2018 Below Market Lease, Amortization Income, Remainder of Fiscal Year 2019 Below Market Lease, Amortization Income, Year Two 2020 Below Market Lease, Amortization Income, Year Three 2021 Below Market Lease, Amortization Income, Year Four 2022 Below Market Lease, Amortization Income, Year Five Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Acquisitions 2018 [Member] Acquisitions 2018 [Member] Acquisitions 2018 [Member] 2017 Acquisitions [Member] Acquisitions, 2017 [Member] Acquisitions, 2017 [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Number of land parcels acquired Number of Land Parcels Acquired Number of Land Parcels Acquired Total purchase price of assets acquired Business Combination, Consideration Transferred Capitalized acquisition costs Business Combination, Capitalized Acquisition Related Costs Business Combination, Capitalized Acquisition Related Costs Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Schedule of Mortgage Notes Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Aggregate Principal Payments Due on Mortgage Notes Receivable Schedule of Financing Receivables, Minimum Payments [Table Text Block] Number of units requested for redemption (shares) Stock Redeemed or Called During Period, Requests Under Review, Shares Stock Redeemed or Called During Period, Requests Under Review, Shares Litigation, Merger and Other Non-Routine Transaction Related Expenses Litigation and Other Non-Routine Costs [Table Text Block] Litigation and Other Non-Routine Costs [Table Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Real estate investments, at cost: Real Estate Investment Property, at Cost [Abstract] Land Land Buildings, fixtures and improvements Investment Building, Fixtures And Building Improvements Investment Building, Fixtures And Building Improvements Intangible lease assets Finite-Lived Intangible Assets, Gross Total real estate investments, at cost Real Estate Investment Property, at Cost Less: accumulated depreciation and amortization Real Estate Investment Property, Accumulated Depreciation Total real estate investments, net Investment in direct financing leases, net Capital Leases, Net Investment in Direct Financing Leases Mortgage notes receivable, net Cash and cash equivalents Restricted cash Rent and tenant receivables and other assets, net Rent and Tenant Receivable and Other Assets, Net Rent and Tenant Receivable and Other Assets, Net Assets related to real estate assets held for sale and discontinued operations, net Disposal Group, Including Discontinued Operation, Assets Total assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Mortgage notes payable, net Secured Debt Corporate bonds, net Unsecured Debt Convertible debt, net Convertible Notes Payable Credit facility, net Long-term Line of Credit Below-market lease liabilities, net Deferred rent and other liabilities Deferred Revenue, Derivative Liabilities, and Other Liabilities Deferred Revenue, Derivative Liabilities, and Other Liabilities Distributions payable Dividends Payable Liabilities related to discontinued operations Disposal Group, Including Discontinued Operation, Liabilities Total liabilities Liabilities Commitments and contingencies (Note 13) Commitments and Contingencies EQUITY Preferred stock, $0.01 par value, 100,000,000 shares authorized and 42,834,138 issued and outstanding as of each of March 31, 2018 and December 31, 2017 Preferred Stock, Value, Issued Common stock, $0.01 par value, 1,500,000,000 shares authorized and 968,154,486 and 974,208,583 issued and outstanding as of March 31, 2018 and December 31, 2017, respectively Common Stock, Value, Issued General Partners' capital account General Partners' Capital Account Limited Partners' capital account Limited Partners' Capital Account Additional paid-in-capital Additional Paid in Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated deficit Retained Earnings (Accumulated Deficit) Total stockholders’ equity Stockholders' Equity Attributable to Parent Non-controlling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total partners’ equity Partners' Capital Non-controlling interests Partners' Capital Attributable to Noncontrolling Interest Total equity Total liabilities and equity Liabilities and Equity Total Stockholders’ Equity Preferred Stock [Member] Additional Paid-In Capital [Member] Additional Paid-in Capital [Member] Accumulated Other Comprehensive Loss [Member] AOCI Attributable to Parent [Member] Accumulated Deficit [Member] Retained Earnings [Member] Series D Preferred Stock [Member] Series D Preferred Stock [Member] Preferred Stock [Member] Convertible Preferred Stock [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance (shares) Shares, Outstanding Beginning balance Repurchases of common stock to settle tax obligation (shares) Repurchases of common stock to settle tax obligation Equity-based compensation, net (shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Equity-based compensation, net Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Distributions declared on common stock Dividends Distributions to non-controlling interest holders Distributions Ending balance (shares) Ending balance Distribution agreement gross sales price (up to) Distribution Agreement, Stock Authorized During Period, Value Distribution Agreement, Stock Authorized During Period, Value Distribution agreement stock issued Distribution Agreement Stock Issued During Period Value New Issues Distribution Agreement Stock Issued During Period Value New Issues Supplemental Disclosures: Supplemental Cash Flow Disclosures [Abstract] Supplemental Cash Flow Disclosures [Abstract] Cash paid for interest Interest Paid Cash paid for income taxes Income Taxes Paid Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Accrued capital expenditures and real estate developments Capital Expenditures Incurred and Not Yet Paid and Real Estate Developments Capital Expenditures Incurred and Not Yet Paid and Real Estate Developments Accrued repurchases of common stock to settle tax obligation Accrued Repurchase of Common Stock, Tax Obligation Settlement Accrued Repurchase of Common Stock, Tax Obligation Settlement Distributions declared and unpaid Accrued Distributions Accrued Distributions Mortgage Notes Payable and Other Debt [Member] Mortgage Notes Payable and Other Debt [Member] Mortgage Notes Payable and Other Debt [Member] Debt [Roll Forward] Debt [Roll Forward] Debt [Roll Forward] Outstanding balance, Beginning balance Net premiums (discount), Beginning balance Deferred costs, Beginning balance Debt Issuance Costs, Net Total debt, Beginning balance Long-term Debt Debt Issuances Proceeds from Issuance of Debt Debt Issuances, Net Proceeds from Debt, Net of Issuance Costs Repayments, Extinguishment and Assumptions Repayments of Debt Repayments, Extinguishment and Assumptions, Net Repayments, Extinguishment and Assumptions of Debt, Net Repayments, Extinguishment and Assumptions of Debt, Net Accretion and Amortization, (Premiums) Discount Amortization of Debt Discount (Premium) Accretion and Amortization, Deferred costs Amortization of Debt Issuance Costs Accretion and Amortization Amortization of Debt Issuance Costs and Discounts Outstanding balance, Ending balance Net premiums (discount), Ending balance Deferred costs, Ending balance Total debt, Ending balance Mortgage notes in connection with default from non-recourse loan Debt Instrument, Debt Default, Amount Number of mortgage notes payable in default Number of Notes Payable in Default Number of Notes Payable in Default Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Reclassification Restatement Adjustment [Member] Adjustments for Change in Accounting Principle [Axis] Adjustments for Change in Accounting Principle [Axis] Adjustments for Change in Accounting Principle [Domain] Adjustments for Change in Accounting Principle [Domain] Distributions Received From Equity method Investments [Member] Distributions Received From Equity method Investments [Member] Distributions Received From Equity method Investments [Member] Proceeds From Settlement Of Insurance Claims [Member] Proceeds From Settlement Of Insurance Claims [Member] Proceeds From Settlement Of Insurance Claims [Member] Accounting Standards Update 2016-15 [Member] Accounting Standards Update 2016-15 [Member] Accounting Standards Update 2016-18 [Member] Accounting Standards Update 2016-18 [Member] Direct financing lease income reclassed Direct Financing Lease, Lease Income Rental income Rental Income, Nonoperating Rent and tenant receivables and other assets, net Net cash provided by (used in) operating activities Net cash (used in) provided by investing activities Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging [Member] Cash Flow Hedging [Member] Number of interest rate swaps Notional amount Amount of gain (loss) related to change in fair value and other ineffectiveness Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Gain related to ineffective portion of change in fair value Derivative Instruments, Gain Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing Subsequent Events Subsequent Events [Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Total gains and losses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss) [Abstract] Unrealized gain (loss) included in other comprehensive income (loss), net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Realized loss included in other income, net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Unrealized gain included in other income, net Purchases, issuance, settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract] Return of principal received Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Principal Payments Received Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Principal Payments Received Amortization included in net income, net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Amortization Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Amortization Included in Earnings Sale of investments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Ending balance Schedule of Record and Payments Dates for Preferred Stock Dividends Schedule of Preferred Stock Dividends Payable, Record and Payment Dates [Table Text Block] Schedule of Preferred Stock Dividends Payable, Record and Payment Dates [Table Text Block] Offering-related fees and reimbursements [Member] Offering-Related Fees and Reimbursements [Member] Offering-Related Fees and Reimbursements [Member] Selling commissions [Member] Offering-Related Fees and Reimbursements, Selling Commissions [Member] Offering-Related Fees and Reimbursements, Selling Commissions [Member] Dealer manager and distribution fees [Member] Offering-Related Fees and Reimbursements, Dealer Manager And Distribution Fee Revenue [Member] Offering-Related Fees and Reimbursements, Dealer Manager And Distribution Fee Revenue [Member] Reimbursement revenue [Member] Offering-Related Fees and Reimbursements, Reimbursement Revenue [Member] Offering-Related Fees and Reimbursements, Reimbursement Revenue [Member] Transaction service fees and reimbursements [Member] Transaction Service Fees and Reimbursements [Member] Transaction Service Fees and Reimbursements [Member] Acquisition fees [Member] Transaction Service Fees and Reimbursements, Acquisition Fees [Member] Transaction Service Fees and Reimbursements, Acquisition Fees [Member] Reimbursement revenues [Member] Transaction Service Fees and Reimbursements, Reimbursement Revenues [Member] Transaction Service Fees and Reimbursements, Reimbursement Revenues [Member] Management fees and reimbursements [Member] Management Fees and Reimbursements [Member] [Member] Management Fees and Reimbursements [Member] [Member] Asset and property management fees and leasing fees [Member] Management Fees and Reimbursements, Asset and Property Management Fees and Leasing Fees [Member] Management Fees and Reimbursements, Asset and Property Management Fees and Leasing Fees [Member] Advisory and performance fee revenue [Member] Management Fees and Reimbursements, Advisory and Performance Fee Revenue [Member] Management Fees and Reimbursements, Advisory and Performance Fee Revenue [Member] Reimbursement revenues [Member] Management Fees and Reimbursements, Reimbursement Revenues [Member] Management Fees and Reimbursements, Reimbursement Revenues [Member] Selling commissions allowable [Member] Selling Commission Reimbursement [Member] Selling Commission Reimbursement [Member] Dealer manager fees reimbursement [Member] Offering-Related Fees and Reimbursements, Dealer Manager Fees Expense Reimbursement [Member] Offering-Related Fees and Reimbursements, Dealer Manager Fees Expense Reimbursement [Member] Affiliated Entity [Member] Affiliated Entity [Member] Related-party revenues Revenue from Related Parties Interest income on Affiliate Lines of Credit Interest Income, Related Party Selling commissions reallowed Revenue from Related Party, Percentage Revenue from Related Party, Percentage Schedule of Accrued Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Impaired Assets to be Disposed of by Method Other than Sale by Type [Axis] Impaired Assets to be Disposed of by Method Other than Sale by Type [Axis] Impaired Assets to be Disposed of by Method Other than Sale, Asset Name [Domain] Impaired Assets to be Disposed of by Method Other than Sale, Asset Name [Domain] Investment in Real Estate Assets, Net [Member] Real Estate Assets [Member] Real Estate Assets [Member] Below-Market Lease Liabilities, Net [Member] Below-Market Lease Liabilities [Member] Below-Market Lease Liabilities [Member] Total impairment loss Line of Credit Facility [Table] Line of Credit Facility [Table] Loans Payable [Member] Loans Payable [Member] Unencumbered Asset [Member] Unencumbered Asset [Member] Unencumbered Asset [Member] Base Rate [Member] Base Rate [Member] Federal Funds Rate [Member] Federal Funds Effective Swap Rate [Member] Tranche One [Member] Tranche One [Member] Tranche One [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Outstanding balance Maximum aggregate amount outstanding at any one time Line of Credit Facility, Maximum Amount Outstanding During Period Length of extension option Line of Credit Facility, Length of Extension Option Line of Credit Facility, Length of Extension Option Commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Maximum leverage ratio (less than or equal to) Debt Instrument, Covenant, Leverage Ratio, Maximum Debt Instrument, Covenant, Leverage Ratio, Maximum Minimum fixed charge coverage ratio (of at least) Debt Instrument, Covenant, Fixed Charge Coverage Ratio, Minimum Maximum fixed charge coverage ratio required under the credit agreement. Secured leverage ratio (less than or equal to) Debt Instrument, Covenant, Secured Leverage Ratio, Maximum Debt Instrument, Covenant, Secured Leverage Ratio, Maximum Unencumbered asset value ratio (less than or equal to) Debt Instrument, Covenant, Unencumbered Asset Value Ratio, Maximum Debt Instrument, Covenant, Unencumbered Asset Value Ratio, Maximum Minimum tangible net worth covenant (of at least) Debt Instrument, Covenant, Tangible Net Worth, Minimum Debt Instrument, Covenant, Tangible Net Worth, Minimum Minimum unencumbered interest coverage ratio (of at least) Debt Instrument, Covenant, Unencumbered Interest Coverage Ratio, Minimum Debt Instrument, Covenant, Unencumbered Interest Coverage Ratio, Minimum Minimum unencumbered asset value (of at least) Debt Instrument, Covenant, Unencumbered Asset Value, Minimum Debt Instrument, Covenant, Unencumbered Asset Value, Minimum Unencumbered Asset Value ratio Debt Instrument, Covenant, Unsecured Debt to Unencumbered Asset Value Ratio Minimum unsecured debt to unencumbered asset value ratio required under the credit facility. Class of Treasury Stock [Table] Class of Treasury Stock [Table] Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Stock authorization period Stock Repurchase Program, Period in Force Repurchases of common stock under the Share Repurchase Program (shares) Treasury Stock, Shares, Acquired Repurchases of common stock under the share repurchase program weighted average price per share (USD per share) Treasury Stock Acquired Weighted Average Cost Per Share Treasury Stock Acquired Weighted Average Cost Per Share Repurchases of common stock under the Share Repurchase Program Treasury Stock, Value, Acquired, Cost Method Income from continuing operations Noncontrolling interests’ share in continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest Net income from continuing operations attributable to the General Partner/Operating Partnership Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Dividends to preferred units Preferred Stock Dividends and Other Adjustments Net income (loss) from continuing operations available to the General Partner/Operating Partnership Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Earnings allocated to participating units Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Income from discontinued operations attributable to limited partners Income (Loss) From Discontinued Operations, Attributable To Limited Partners Income (Loss) From Discontinued Operations, Attributable To Limited Partners Net income (loss) available to common stockholders used in basic net income (loss) per share Net Income (Loss) Available to Common Stockholders, Basic Income attributable to limited partners Net Income (Loss), Attributable To Limited Partners, Basic Net Income (Loss), Attributable To Limited Partners, Basic Net income (loss) available to common stockholders used in diluted net income (loss) per share Net Income (Loss) Available to Common Stockholders, Diluted Weighted average number of common stock outstanding - basic (shares) Weighted Average Number of Shares Outstanding, Basic Dilutive potential common shares - OP Units (shares) Incremental Common Shares Attributable to Dilutive Effect of OP units Incremental Common Shares Attributable to Dilutive Effect of OP units Dilutive potential common shares - equity awards (shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average number of common shares - diluted (shares)