Debt Disclosure [Abstract] Mortgages, notes and loans payable principal payments Long-term Debt, Fiscal Year Maturity [Abstract] 2019 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2020 Long-term Debt, Maturities, Repayments of Principal in Year Two 2021 Long-term Debt, Maturities, Repayments of Principal in Year Three 2022 Long-term Debt, Maturities, Repayments of Principal in Year Four 2023 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Total Long-term Debt, Gross Deferred financing costs, net and unamortized underwriting fees Deferred Finance Costs, Net and Unamortized Underwriting Fees Deferred Finance Costs, Net and Unamortized Underwriting Fees Total Long-term Debt Accounting Policies [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Building and Building Improvements Building and Building Improvements [Member] Equipment and fixtures Furniture and Fixtures [Member] Computer, Hardware and Software and Vehicles Computer Hardware And Software And Vehicles [Member] Represents information pertaining to computer hardware and software, and vehicles. Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Statement [Line Items] Statement [Line Items] Estimated useful lives Property, Plant and Equipment, Useful Life Organization, Consolidation and Presentation of Financial Statements [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Condominium rights and unit sales Condominium Rights And Unit Sales [Member] Condominium Rights And Unit Sales [Member] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Recognition Under Previous Guidance Calculated under Revenue Guidance in Effect before Topic 606 [Member] Impact of Adoption of ASC Topic 606 Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Condensed Consolidated Balance Sheets (in thousands) Balance Sheet Related Disclosures [Abstract] Buildings and equipment, net Buildings And Equipment, Net Buildings And Equipment, Net Developments Development in Process Deferred expenses, net Deferred Costs Prepaid expenses and other assets, net Prepaid Expense and Other Assets Deferred tax liabilities Deferred Income Tax Liabilities, Net Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities Accumulated deficit Retained Earnings (Accumulated Deficit) Condensed Consolidated Statements of Operations (in thousands) Income Statement [Abstract] Revenue Revenue from Contract with Customer, Including Assessed Tax Condominium rights and unit cost of sales Condominium Rights And Unit Cost Of Sales Represents costs incurred directly related to generating condominium unit sales revenue. Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Operating income before other items Operating Income Loss Before Other Items The net result for the period of deducting operating expenses from operating revenues but before other operating items. Provision for income taxes Income Tax Expense (Benefit) Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Comprehensive income, net of tax: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income attributable to common stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Condensed Consolidated Statements of Cash Flows (in thousands) Statement of Cash Flows [Abstract] Deferred income taxes Deferred Income Tax Expense (Benefit) Percentage of completion revenue recognition from sale of condominium rights Percent Of Completion Condominium Rights And Unit Sales Revenue Percent Of Completion Condominium Rights And Unit Sales Revenue Warrants and Rights Note Disclosure [Abstract] Class of Warrant or Right [Table] Class of Warrant or Right [Table] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Sponsors Warrants Sponsors Warrants [Member] Represents the Sponsors Warrants, a type of the warrant that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Management Warrants Management Warrants [Member] Represents the Management Warrants, a type of the warrant that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Chief Executive Officer Chief Executive Officer [Member] President President [Member] Chief Financial Officer Chief Financial Officer [Member] Sponsors and Management Warrants Class of Warrant or Right [Line Items] Warrants outstanding (in shares) Class of Warrant or Right, Outstanding Exercise price (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Warrants exercised (in shares) Class Of Warrant Or Right Number Of Securities Under Warrants Exercised The number of securities called by warrants that were exercised during the period. Underlying shares associated with warrant (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right Proceeds from issuance of Management warrants Proceeds from Issuance of Warrants Number of shares donated to charitable trust (in shares) Class of Warrant or Right, Number of Shares Donated Number of shares donated to charitable trust. Number of shares issued as per warrant provision for which share settled Class of Warrant or Right, Number of Shares Settled Number of shares settled in accordance with the warrant provisions. Number of shares of common stock under warrants exercised (in shares) Class of Warrant or Right, Number of Securities under Warrants Repurchased Number of securities called by warrants which are repurchased during the period. Warrant liabilities Warrants and Rights Outstanding Number of shares called by warrants (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Total warrant price Class Of Warrant or Right Price Of Warrants Or Rights The price of warrants or rights outstanding. Leases [Abstract] Schedule of minimum future rentals under operating leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] One Month LIBOR London Interbank Offered Rate One Month Libor [Member] The one-month interest rate at which a bank borrows funds from other banks in the London interbank market. London Inter Bank Offered Rate Three Month Libor London Inter Bank Offered Rate Three Month Libor [Member] The one-month interest rate at which a bank borrows funds from other banks in the London interbank market. Prime Rate Prime Rate [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] S124 S124 [Member] Represents S124, a special improvement district bond bearing interest at 5.95% and maturing in December 2019. S128 S128 [Member] Represents S128, a special improvement district bond bearing interest at 7.30% and maturing in December 2020. S132 S132 [Member] Represents S132, a special improvement district bond bearing interest at 7.88% and maturing in December 2020. Woodlands Master Credit Facility Woodlands Master Credit Facility [Member] The Woodlands Master Credit Facility [Member] Bridgeland Credit Facility Bridgeland Credit Facility [Member] Bridgeland Credit Facility [Member] S151 S151 [Member] Represents S151, a special improvement district bond bearing interest at 6.00% and maturing in June 2025. S128 C S128 C [Member] Represents S128C, a special improvement district bond bearing interest at 6.05% and maturing in December 2030. S159 S159 [Member] Represents S152, a special improvement district bond bearing interest at 6.00% and maturing in June 2035. S812 S812 [Member] Represents S182, a special improvement district bond bearing interest at 0.00% and maturing in December 1899. Senior Secured Credit Facility Senior Secured Credit Facility [Member] Senior Secured Credit Facility [Member] Other Financing Arrangements Other Financing Arrangements [Member] Represents the details pertaining to the other financing arrangements. Unsecured 5.375% Senior Notes Senior Notes5.375 Percentage Due March15th2025 [Member] Represents information pertaining to 5.375% senior notes due March 15, 2025. Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] Summerlin South Summerlin South [Member] Represents the information pertaining to Summerlin South, a part of the Summerlin property owned by the entity. Bridgeland Bridgeland [Member] Represents the information pertaining to Bridgeland, a property owned by the entity. Summerlin West Summerlin West [Member] Represents the information pertaining to Summerlin West, a part of the Summerlin property owned by the entity. Hughes Landing Boulevard1725 To35 Hughes Landing Boulevard1725 To35 [Member] Represents the information pertaining to 1725 - 35 Hughes Landing Boulevard, that was acquired by the entity. Westin At The Woodlands Westin At The Woodlands [Member] Westin At The Woodlands [Member] Outlet At Riverwalk Properties Outlet At Riverwalk Properties [Member] Represents the information pertaining to properties owned by The Outlet at Riverwalk, that was acquired by the entity. Three Hughes Landing Three Hughes Landing [Member] Represents information pertaining to Three Hughes Landing, a property owned by the entity. Lakeland Village Center at Bridgeland Lakeland Village Center at Bridgeland [Member] Lakeland Village Center at Bridgeland [Member] Embassy Suites at Hughes Landing Embassy Suites At Hughes Landing [Member] Represents information pertaining to Embassy Suites At Hughes Landing The Woodlands Resort and Conference Center Resort And Conference Center [Member] Represents the information pertaining to Resort and Conference Center, a property owned by The Woodlands, that was acquired by the entity. One Merriweather One Merriweather [Member] Represents the information pertaining to One Merriweather. Downtown Summerlin Downtown Summerlin [Member] Downtown Summerlin [Member] Two Merriweather Columbia Md Two Merriweather Columbia Md [Member] Represents Two Merriweather Columbia, MD Hhc242 Self Storage Facility Hhc242 Self Storage Facility [Member] Represents the information pertaining to HHC 242 Self Storage Facility. Hhc2978 Self Storage Facility Hhc2978 Self Storage Facility [Member] Represents the information pertaining to HHC 2978 Self Storage Facility. 10 - 70 Columbia Corporate Center Columbia Corporate Center70 [Member] Represents information pertaining to 70 Columbia Corporate Center, a property owned by the entity. One Mall North One Mall North [Member] Represents information pertaining to One Mall North. Columbia Corporate Center1060 Columbia Corporate Center1060 [Member] Represents the information pertaining to the property at 10-60 Columbia Corporate Center. Ward Village Ward Village [Member] Represents information pertaining to Ward Village, a property owned by the entity. Lakefront North Lakefront North [Member] Lakefront North [Member] 20/25 Waterway Avenue Waterway Square2025 [Member] Represents the information pertaining to 20/25 Waterway, a property owned by The Woodlands, that was acquired by the entity. Millennium Waterway Apartments Millennium Waterway Apartments [Member] Represents information pertaining to Millennium Waterway Apartments, a property owned by the entity. Aristocrat Aristocrat [Member] It represent Aristocrat Two Summerlin Two Summerlin [Member] It represent two summerlin. Lake Woodlands Crossing Retail Lake Woodlands Crossing Retail [Member] It represent lake woodlands Crossing retail. 9303 New Trails New Trails9303 [Member] Represents the information pertaining to 9303 New Trails, a property owned by The Woodlands, that was acquired by the entity. 4 Waterway Square Waterway4 [Member] Represents the information pertaining to 4 Waterway, a property owned by The Woodlands, that was acquired by the entity. 3831 Technology Forest Drive Technology Forest3831 [Member] Represents information pertaining to Technology Forest 3831, The Woodlands, TX. Kewalo Harbor Kewalo Basin Harbor [Member] Represents the information pertaining to Kewalo Basin Harbora, Honolulu, HI, that was acquired by the entity. Millennium Six Pines Apartments Millennium Six Pines Apartments [Member] Represents Millennium Six Pines Apartments (e) 3 Waterway Square Waterway Square3 [Member] Represents the information pertaining to 3 Waterway Square, a property owned by The Woodlands, that was acquired by the entity. One Hughes Landing One Hughes Landing [Member] Represents information pertaining to One Hughes Landing, a property owned by the entity. Two Hughes Landing Two Hughes Landing [Member] Represents information pertaining to Two Hughes Landing, a property owned by the entity. Hockey Ground Lease Hockey Ground Lease [Member] Represents the information pertaining to hockey ground lease, Las Vegas, NV One Lakes Edge One Lakes Edge [Member] Represents information pertaining to One Lake's Edge, a property owned by the entity. Net assets acquired in the acquisition of Constellation Constellation Apartments [Member] It represent constellation apartments Hughes Landing Retail Hughes Landing Retail [Member] Represents information pertaining to Hughes Landing Retail, a property owned by the entity. Columbia Regional Building Columbia Regional Building [Member] Represents information pertaining to Columbia Regional Building, a property owned by the entity. 250 Water Street 250 Water Street [Member] 250 Water Street [Member] Ke Kilohana Ke Kilohana [Member] Represents the information pertaining to Ke kilohana, Honolulu, HI, that was acquired by the entity. Ae'o Aeo [Member] Represents information pertaining to Ae 'o, Honolulu, HI. Fellowship Drive100 Fellowship Drive100 [Member] Represents the information pertaining to 100 fellowship drive. Lakeside Row Lakeside Row [Member] Lakeside Row [Member] Two Lakes Edge Two Lakes Edge [Member] Two Lakes Edge [Member] 110 N Wacker Wacker110 N [Member] Represents the information pertaining to 110 N. Wacker, a property owned by the entity. 6100 Marriweather 6100 Marriweather [Member] 6100 Marriweather [Member] Columbia Multi-Family Columbia Multi-Family [Member] Columbia Multi-Family [Member] Tanager Apartments Tanager Apartments [Member] Tanager Apartments [Member] Other SID Bonds Other SID Bonds [Member] Other SID Bonds [Member] Summerlin Ballpark Summerlin Ballpark [Member] Summerlin Ballpark [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Master Planned Communities Master Planned Communities [Member] Represents the Master Planned Communities, a reportable segment of the entity. It includes the development and sale of land, in large-scale, long-term community development projects in and around Las Vegas, Nevada; Houston, Texas and Columbia, Maryland. Operating Assets Operating Assets [Member] Represents the Operating Assets, a reportable segment of the entity. It includes commercial, mixed use and retail properties currently generating revenues. Strategic Developments Strategic Developments [Member] Represents the Strategic Developments, a reportable segment of the entity. It includes all properties held for development and redevelopment, including the current rental property operations as well as one residential condominium project located in Natick (Boston), Massachusetts. Mortgages, notes and loans payable Debt Instrument [Line Items] Interest rate (as a percent) Debt Instrument, Interest Rate, Effective Percentage Facility amount Line of Credit Facility, Maximum Borrowing Capacity Carrying amount Unamortized bond issuance costs Unamortized Debt Issuance Expense Deferred financing costs Debt Issuance Costs, Net Interest rate margin (as a percent) Debt Instrument, Basis Spread on Variable Rate Percent subject to interest rate collar contract Debt Instrument, Percent Subject To Interest Rate Collar Contract Debt Instrument, Percent Subject To Interest Rate Collar Contract Percent of loan swap for fixed rate interest Debt Instrument, Percent Of Loan Swap For Fixed Rate Interest Debt Instrument, Percent Of Loan Swap For Fixed Rate Interest ACQUISITIONS AND DISPOSITIONS ACQUISITIONS AND DISPOSITIONS Mergers, Acquisitions and Dispositions Disclosures [Text Block] Income Tax Disclosure [Abstract] One-time transition benefit Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit) Amount of reasonable estimate for income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. Section 382 Rights Agreement term Section 382 Rights Agreement Term The term for the section 382 Rights Agreement. Gross deferred tax assets Deferred Tax Assets, Gross Deferred tax liabilities Deferred Tax Liabilities, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Decrease in unrecognized tax benefits Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Unrecognized tax benefits Unrecognized Tax Benefits Asset Impairment Charges [Abstract] Summary of Impaired Asset Schedule of Impaired Intangible Assets [Table Text Block] Segment Reporting [Abstract] SEGMENTS Segment Reporting Disclosure [Text Block] Statement of Financial Position [Abstract] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Treasury stock, shares held (in shares) Treasury Stock, Shares Earnings Per Share [Abstract] EARNINGS PER SHARE Earnings Per Share [Text Block] Statement of Comprehensive Income [Abstract] Net income Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Interest rate swaps Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Capitalized swap interest income (expense) Other Comprehensive Income Loss Capitalized Swap Interest Net Of Tax Settled derivative gains and losses, net of tax, associated with hedged variable debt for which the underlying interest is capitalizable. Pension adjustment Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax Adoption of ASU 2018-02 Tax Cuts and Jobs Act Of 2017, Reclassification From AOCI To Retained Earnings, Tax Effect Tax Cuts and Jobs Act Of 2017, Reclassification From AOCI To Retained Earnings, Tax Effect Adoption of ASU 2017-12 New Accounting Pronouncement Or Change In Accounting Principle, Effect Of Change On Other Comprehensive Income New Accounting Pronouncement Or Change In Accounting Principle, Effect Of Change On Other Comprehensive Income Terminated swap amortization Other Comprehensive Income (Loss), Derivative, Terminated Swap Amortization Other Comprehensive Income (Loss), Derivative, Terminated Swap Amortization Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive (income) loss attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to common stockholders Interest rate swaps, deferred tax expense (benefit) Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Capitalized swap interest income, deferred tax benefit Other Comprehensive Income Loss Capitalized Swap Interest Tax Tax effect of settled derivative gains and losses, associated with hedged variable debt for which the underlying interest is capitalizable. Pension deferred tax (expense) benefit Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Corporate Corporate, Non-Segment [Member] Segments reporting Segment Reporting Information [Line Items] Number of reportable segments Number of Reportable Segments Total revenues Revenues Total operating expenses Operating Expenses Operating income Provision for impairment Impairment of Long-Lived Assets to be Disposed of Interest expense (income), net Interest Income (Expense), Net Other loss (income) Other Operating Income Loss The total amount of other operating income (loss). The components are not separately disclosed on the income statement. Equity in (earnings) loss from Real Estate and Other Affiliates Income (Loss) from Equity Method Investments Gains on sales of properties Gain (Loss) on Sale of Properties, before Applicable Income Taxes Income before taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Corporate expenses and other items Expenses And Other Expenses And Other Net income Net (income) loss attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to common stockholders Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of total segment assets to total assets Segment Reporting, Asset Reconciling Item [Line Items] Assets Assets Statement [Table] Statement [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal Domestic Tax Authority [Member] State State and Local Jurisdiction [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Net operating loss carryforwards Operating Loss Carryforwards Net operating loss carryforwards - Federal Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration Tax credit carryforwards - Federal AMT Tax Credit Carryforward, Amount Tax credit carryforward - Historic Tax Credit Tax Credit Carryforward, Historic Tax Credit Tax Credit Carryforward, Historic Tax Credit Commitments and Contingencies Disclosure [Abstract] Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Guarantee Obligations Guarantee Obligations [Member] Downtown columbia Downtown Columbia [Member] Represents information pertaining to Downtown Columbia. Commitments Operating Leased Assets [Line Items] Letters of credit outstanding Letters of Credit Outstanding, Amount Amount of outstanding surety bonds Surety Bonds Outstanding Amount The total amount of the contingent obligation under surety bonds outstanding as of the reporting date. Contractual rental expense, including participation rent Operating Leases, Rent Expense Guarantee amount Loss Contingency Guaranteed Amount The amount of guarantee given for bond issue. Summary of Obligations for Minimum Rentals Under Non-Cancelable Operating Leases Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Woodlands Land Development Company Subsidiaries [Member] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Notes Payable, Other Payables Notes Payable, Other Payables [Member] Naming Rights And Marketing Agreement Naming Rights And Marketing Agreement [Member] Naming Rights And Marketing Agreement [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] 100 Fellowship Drive, Lakefront North, Three Hughes Landing, The Woodlands Resort And Conference Center And Lake Woodlands Crossing 100 Fellowship Drive, Lakefront North, Three Hughes Landing, The Woodlands Resort And Conference Center And Lake Woodlands Crossing [Member] 100 Fellowship Drive, Lakefront North, Three Hughes Landing, The Woodlands Resort And Conference Center And Lake Woodlands Crossing [Member] Woodlands Properties Woodlands Properties [Member] Represents the information pertaining to properties owned by The Woodlands, that was acquired by the entity. Summerlin Summerlin [Member] Represents the information pertaining to Summerlin Acquisition properties owned by the entity. Mortgaged Properties Mortgaged Properties [Member] Mortgaged Properties [Member] Lakeland Village Center Lakeland Village Center [Member] Lakeland Village Center [Member] Constellation Constellation [Member] Represents Constellation 6100 Merriweather And Columbia Multi-Family 6100 Merriweather And Columbia Multi-Family [Member] 6100 Merriweather And Columbia Multi-Family [Member] Downtown Summerlin Apartments Downtown Summerlin Apartments [Member] Represents the information pertaining to downtown summerlin apartments, Las Vegas, NV Waiea And Anaha Condominium Towers Waiea And Anaha Condominium Towers [Member] Represents information pertaining to the Waiea and Anaha Condominium Towers. Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Recourse Debt Recourse Debt [Member] Represents information regarding recourse debt. Mortgages Mortgages [Member] Construction Loans Construction Loans [Member] Term Loan Term Loan [Member] Represents the information pertaining to the term loan facility which is provided under the credit agreement. Line of Credit Line of Credit [Member] Construction Loan Payable Construction Loan Payable [Member] Special Improvement District Bonds Bonds [Member] $700 Million Loan Maturity September 2023 $700 Million Loan Maturity September 2023 [Member] $700 Million Loan Maturity September 2023 [Member] Fannie Mae Fannie Mae [Member] Represents the information pertaining to The Federal National Mortgage Association (FNMA), commonly known as Fannie Mae. Senior Notes6.875 Percent Due2021 Senior Notes6.875 Percent Due2021 [Member] Represents information pertaining to senior notes payable that bear an interest rate of 6.875 percentage and will mature in 2021. London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Wall Street Journal Prime Wall Street Journal Prime [Member] Interest rate based on the Wall Street Journal Prime. Weighted average interest rate Debt, Weighted Average Interest Rate Recourse percentage Debt Instrument, Recourse Percentage Represents the percentage of recourse related to debt instrument. Decrease in exposure of outstanding principal upon completion of project and achievement of debt service coverage ratio Increase Decrease In Exposure Of Outstanding Principal Upon Completion Of Project And Achievement Of Debt Service Coverage Ratio Represents the percentage of increase (decrease) in exposure of outstanding principal upon completion of the project and achievement of debt service coverage ratio. Debt service coverage ratio required to achieve reduced maximum percentage recourse Debt Service Coverage Ratio Required To Achieve Reduced Maximum Percentage Recourse Represents the debt service coverage ratio needed to achieve the reduced maximum percent recourse the loan has with the company. Maximum recourse percentage, upon achievement of conditions Debt Instrument, Maximum Recourse Percentage, Upon Achievement Of Conditions Represents the maximum percentage recourse the loan has with the Company upon achievement of conditions. Debt service coverage ratio required to achieve further reduction in maximum percentage recourse Debt Service Coverage Ratio Required To Achieve Further Reduction In Maximum Percentage Recourse Represents the debt service coverage ratio needed to achieve further reduction in maximum percent recourse the loan has with the company. Percentage cf occupancy of real estate property Percentage Of Occupancy Of Real Estate Property Represents the percentage of occupancy by the tenants of the real estate property. Average minimum tenant sales needed to achieve further reduction in maximum percent recourse Average Minimum Tenant Sales Needed To Achieve Further Reduction In Maximum Percent Recourse Represents the minimum average tenant sales per net rentable square foot needed to achieve further reduction in maximum percent recourse the loan has with the company. Pledged assets, not separately reported Pledged Assets, Not Separately Reported, Real Estate Option to extend, term Debt Instrument, Option to Extend Term Represents the period of option to extend the term of the debt instrument. Bond obligation liabilities assumed by buyers Bond Obligation Liabilities Assumed By Buyers The fair value of bond obligation liabilities assumed in by buyers. Number of extension options Debt Instrument, Number of Extension Options Represents the number of extension options available pertaining to a debt instrument. Extension option, term Debt Instrument, Extension Option, Term Debt Instrument, Extension Option, Term Aggregate principal amount of debt issued Debt Instrument, Face Amount Long-term line of credit Long-term Line of Credit Option to increase borrowing capacity Debt Instrument, Option To Increase Borrowing Capacity Debt Instrument, Option To Increase Borrowing Capacity Debt instrument covered, percent Derivative, Debt Instrument Covered, Percent Derivative, Percent Of Debt Instrument Covered Fixed interest rate Derivative, Fixed Interest Rate Repayment of debt Repayments of Long-term Debt Unamortized bond issuance costs Loss on redemption of senior notes due 2021 Gain (Loss) on Extinguishment of Debt Debt instrument, term Debt Instrument, Term Debt instrument, interest term Debt Instrument, Interest Term Period of time Interest payment of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Debt instrument, amortization period Debt Instrument, Amortization Period Amortization period for debt instrument in, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Number of repayments Debt Instrument, Number Of Repayments Debt Instrument, Number Of Repayments Naming rights and marketing agreement, term Naming Rights And Marketing Agreement, Term Naming Rights And Marketing Agreement, Term Short-term debt Short-term Debt Interest free term Debt Instrument, Interest Free Term Debt Instrument, Interest Free Term Interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Extension option, minimum paydown Debt Instrument, Extension Option, Minimum Paydown Debt Instrument, Extension Option, Minimum Paydown Variable interest entity, consolidated, joint venture debt, guarantee amount Variable Interest Entity, Consolidated, Joint Venture Debt, Guarantee Amount Variable Interest Entity, Consolidated, Joint Venture Debt, Guarantee Amount Variable interest entity, consolidated, joint venture debt, increase (decrease) guarantee amount Variable Interest Entity, Consolidated, Joint Venture Debt, Increase (Decrease) Guarantee Amount Variable Interest Entity, Consolidated, Joint Venture Debt, Increase (Decrease) Guarantee Amount Fair value derivative liabilities Derivative Liability, Fair Value, Gross Liability Issuance at premium to par Debt Instrument, Issuance At Premium To Par Represents the issuance of debt at a premium to par. Redemption price, percentage of principal amount redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Redemption price, percentage Debt Instrument, Redemption Price, Percentage Acquisition of 1% partnership interest in 110 North Wacker Joint Venture Real Estate, Ownership Percentage Joint Venture Real Estate, Ownership Percentage Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Group Name [Domain] Five non-core assets Four Non Core Assets [Member] Represents information pertaining to four non-core assets. The Outlet Collection, Elk Grove Outlet Collection [Member] Represents information pertaining to The Outlet Collection, Elk Grove. Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Las Vegas 51s Las Vegas51s Llc [Member] Represents Las Vegas 51s LLC Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Disposal by Sale Discontinued Operations, Disposed of by Sale [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Landmark Mall Landmark Mall [Member] Represents information pertaining to Landmark Mall, a real estate affiliate of the entity. Constellation Note Payable Constellation Note Payable [Member] Information pertaining to the Constellation note payable. Number of buildings Real Estate Acquired, Number Of Buildings Real Estate Acquired, Number Of Buildings Area of real estate property Area of Real Estate Property Area of land Area of Land Payments to acquire real estate Payments to Acquire Real Estate Area of land purchased Area Of Land Purchased Area Of Land Purchased Purchase price of land acquired Purchase Price Of Land Acquired Purchase Price Of Land Acquired Payments to acquire land Payments to Acquire Land Number of assets sold Number Of Assets Sold The number of assets sold. Proceeds from sale of real estate Proceeds from Sale of Real Estate (Loss) gain on disposal of operating assets Gain (Loss) on Disposition of Assets Corporate gains on sale of properties Gain (Loss) on Sale of Properties Gain lLoss) on disposition of business Gain (Loss) on Disposition of Business Ownership interest (as a percent) Business Acquisition, Percentage of Voting Interests Acquired Portion of refinanced mortgage proceeds used to acquire partner's interest Payments to Acquire Businesses, Gross Liabilities acquired percentage Business Combination Percentage Of Liabilities Acquired The percentage of liabilities acquired as part of a business acquisition. Purchase price of acquisition Business Combination, Consideration Transferred Construction loan Long-term Construction Loan, Noncurrent Gain recognized from acquisition Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Equity in earnings from Real Estate and Other Affiliates Economic/Legal Ownership Equity Method Investment, Ownership Percentage Contingent liability recorded per the terms of the purchase agreement Business Combination, Contingent Consideration, Liability Adjustment to allocate from identified finite-lived intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Acquired intangible assets weighted average amortization period Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Assets acquired and consolidated into financial statements Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Liabilities assumed and consolidated into financial statements Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Revenues Equity Method Investment, Summarized Financial Information, Revenue Revenues since the acquisition date Pre-tax net loss since the acquisition date Area of land sold Area of Land Sold Represents the area of land sold by the entity during the period. Area of land under development Area of land under development Area of land under development. Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Downtown Summerlin and Seaport District Tenants Downtown Summerlin And Seaport District Tenants [Member] Downtown Summerlin And Seaport District Tenants [Member] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Allowance for doubtful accounts Allowance for Doubtful Accounts [Member] New Accounting Pronouncement, Early Adoption [Axis] New Accounting Pronouncement, Early Adoption [Axis] New Accounting Principles, Early Adoption [Domain] New Accounting Principles, Early Adoption [Domain] New Accounting Pronouncement, Early Adoption, Effect New Accounting Pronouncement, Early Adoption, Effect [Member] Accounting Standards Update 2016-18 Accounting Standards Update 2016-18 [Member] Accounting Standard Update 2017-12 Accounting Standard Update 2017-12 [Member] Accounting Standard Update 2017-12 [Member] Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate, Type [Domain] Change in Accounting Estimate, Type [Domain] Service Life Service Life [Member] Net carrying amount Finite-Lived Intangible Assets, Net Number of business segment Number of Operating Segments Adjustment to depreciation due to change in estimated useful life Depreciation Impact on diluted EPS resulting from depreciation adjustment (in dollars per share) Impact of Restatement on Earnings Per Share, Diluted Estimated useful life of MPC assets Impairments Impairment of Real Estate Increase from write-offs Allowance for Doubtful Accounts Receivable, Write-offs SID receivables Special Improvement District Receivable Represents the carrying amount of the reimbursement receivable for principal paid on Special Improvement District bonds including interest. Tenant incentives and other receivables Other Receivables Deferred leasing costs, accumulated amortization Deferred Costs, Leasing, Accumulated Amortization Accumulated deficit Condominium receivables Condominium Receivables Represents the amount of condominium receivables. Property, Plant and Equipment, Net Property, Plant and Equipment, Net Reclassification out of AOCI to retained earnings Cumulative effect of adjustment Cumulative Effect of New Accounting Principle in Period of Adoption Reclassification of cash used in operating activities Net Cash Provided by (Used in) Operating Activities Reclassification of cash used in investing activities Net Cash Provided by (Used in) Investing Activities TIF receivable Value Added Tax Receivable Remaining performance obligation Revenue, Remaining Performance Obligation MORTGAGES, NOTES AND LOANS PAYABLE, NET Debt Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Interest rate swaps, tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax Pension adjustment, tax Capitalized swap interest, tax (benefit) Other Comprehensive Income Loss Capitalized Swap Interest On Developments Tax effect, net of reclassification adjustment, of the change in accumulated gain (loss) from settled derivative instruments for which the underlying interest is capitalized. Document and Entity Information Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Public Float Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus INTANGIBLES INTANGIBLES Intangibles Disclosure [Text Block] Disclosure for all or part of the information related to intangible assets and liabilities. Equity Method Investments and Joint Ventures [Abstract] Investments in and Advances to Affiliates [Table] Investments in and Advances to Affiliates [Table] Real Estate Property Ownership [Axis] Real Estate Property Ownership [Axis] Real Estate Properties [Domain] Real Estate Properties [Domain] Unconsolidated Properties Unconsolidated Properties [Member] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Equity Method Investments Equity Method Investments [Member] Mr. C Seaport Mr. C Seaport [Member] Mr. C Seaport [Member] USAA Joint Venture USAA Joint Venture [Member] USAA Joint Venture [Member] The Summit Discovery Land Joint Venture [Member] Represents information pertaining to the Discovery Land Joint Venture, a real estate affiliate of the entity. Circle T Ranch and Power Center Circle T [Member] Represents the information pertaining to Circle T, a real estate affiliate of the entity. m.flats/TEN.M Parcel C [Member] Information pertaining to the Parcel C. 33 Peck Slip Peck Slip33 Grandview Shg Llc [Member] Represents 33 Peck Slip (Grandview SHG, LLC) Bridge Loan Bridge Loan [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] USAA USAA [Member] USAA [Member] Kettler Inc Kettler Inc [Member] Information related to Kettler, Inc. a partner in a joint venture. Real Estate and Other Affiliates Investments in and Advances to Affiliates [Line Items] Investment in Real Estate and Other Affiliates Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Secured debt Secured Debt Real Estate Affiliates Real Estate Affiliates carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. Share of the entity in secured debt Share of Entity in Secured Debt Represents the reporting entity's proportionate share in indebtedness secured by the properties owned by real estate affiliates as on balance sheet date. Number of variable interest entities in which entity is primary beneficiary Variable Interest Entity, Number of Entities Represents the number of variable interest entities. Carrying values of the assets associated with the operations of the consolidated VIEs Variable Interest Entity, Consolidated, Carrying Amount, Assets Carrying values of the liabilities associated with the operations of the consolidated VIEs Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Fair value of the land contributed to joint venture Contribution of Property Contribution of property Contribution Of Property, Fair Value Contribution Of Property, Fair Value Capital contribution Capital Contribution to Joint Venture Capital contributed to joint venture to purchase a property. Joint venture capital obligations Capital Contributions, Joint Venture Capital Obligations Joint Venture Capital Obligations Joint venture agreement, equity ownership percentage Joint Venture Agreement, Equity Ownership Percentage Joint Venture Agreement, Equity Ownership Percentage Joint venture, preferred return on capital Joint Venture, Preferred Return On Capital Joint Venture, Preferred Return On Capital Joint venture, preferred return on capital, percent of cash distributions Joint Venture, Preferred Return On Capital, Percent Of Cash Distributions Joint Venture, Preferred Return On Capital, Percent Of Cash Distributions SID Bonds transferred to a joint venture SID Bonds Transferred to Joint Venture Amount of SID bonds transferred to a Joint Venture. Transaction value of the land contributed to joint venture Transaction Value Of The Land Contributed To Joint Venture Represents the amount of transaction value of land contributed to joint venture. Value of land contributed to joint venture, price per acre Transactional Value Per Acre Of Land Contributed To Joint Venture The per acre value of the land contributed to a joint venture. Maximum capital contribution required Maximum Contribution Required to Joint Venture by Co-Venturer Represents the maximum capital contribution required by the partner in a joint venture. Preferred return, on capital (as a percent) Preferred Return on Capital Represents the percentage of preferred return on the capital of the entity. Entitlement of distribution by joint venture (in times) Cash Distribution Entitlement By The Joint Venture Represents information pertaining to entitlement of distribution by joint venture after receipt of capital contribution and preferred returns. Area of land contributed to the joint venture (in acres) Area of Land Contributed to Joint Venture Represents the area of the land contributed to the joint venture by the entity. Additional capitalized development costs incurred resulting from contribution of land Additional Capitalized Development Costs Incurred Additional Capitalized Development Costs Incurred Total book value contribution Total Book Value Contribution Represents the total book value of contribution made. Transaction value, per constructed unit of land contributed to joint venture Contribution of Property Transaction Value of Per Constructed Unit Represents the amount of transaction value, per constructed unit of land contributed to joint venture. Non-recourse construction loan Amount funded in cash to joint venture Payments to Acquire Interest in Joint Venture Distribution of the cash contributed by joint venture partner Amount of Contribution to Joint Venture by Co Venturer Distributed Represents the partner's capital contribution to the equity method investee which is distributed to the entity. Contribution made till date Capital Contribution Made Till Date Represents the capital contribution made till date. Gain recognized on the sale of Redlands Promenade Amount of bridge loan Bridge Loan Redevelopment loan Redevelopment Loan Redevelopment loan made to complete refinancing the property. Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Summary of stock option plan activity Schedule of Stock Options Roll Forward [Table Text Block] Summary of information related to stock options outstanding Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Summary of Significant Assumptions Used in Black-Scholes Option-Pricing Model Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Summary of restricted stock activity Share-based Compensation, Activity [Table Text Block] STOCK-BASED PLANS Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Change In Contract With Customer, Asset [Roll Forward] Change In Contract With Customer, Asset [Roll Forward] Change In Contract With Customer, Asset Beginning balance Contract with Customer, Asset, Net Consideration earned during the period Contract With Customer, Asset, Consideration Earned In Period Contract With Customer, Asset, Consideration Earned In Period Consideration received during the period Contract With Customer, Asset, Consideration Received In Period Contract With Customer, Asset, Consideration Received In Period Ending balance Change In Contract With Customer, Liability [Roll Forward] Change In Contract With Customer, Liability [Roll Forward] Change In Contract With Customer, Liability [Roll Forward] Beginning balance Contract with Customer, Liability Consideration earned during the period Contract with Customer, Liability, Revenue Recognized Consideration received during the period Contract With Customer, Liability, Increase From Consideration Received Contract With Customer, Liability, Increase From Consideration Received Ending balance Total Minimum Rent Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Subsequent Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Percentage rent in lieu of fixed minimum rent Percentage Rent in Lieu of Fixed Minimum Rent Recognized from Tenants Represents the percentage rent in lieu of fixed minimum rent recognized from tenants, included in minimum rents in the entity's financial statements. Overage rent Overage Rent Represents the amount of tenant sales that exceed contractual thresholds contained in the lease and is calculated by multiplying the tenant sales in excess of the minimum amount by a percentage defined in the lease. Summary of Investments in Real Estate and Other Affiliates Real Estate Investment Financial Statements, Disclosure [Table Text Block] Net assets acquired in the acquisition of Las Vegas Aviators Net assets acquired in the acquisition of Six Pines Acquisition Of Millennium Six Pines Apartments [Member] Represents Acquisition of Millennium Six Pines Apartments CONSOLIDATED STATEMENTS OF CASH FLOWS Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustments to reconcile net income to cash provided by operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Depreciation Amortization Amortization Amortization of deferred financing costs Amortization of Debt Issuance Costs and Discounts Amortization of intangibles other than in-place leases Amortization of Intangibles Other than in Place Leases The aggregate expense charged against earnings to allocate the cost of intangible assets other than in place lease (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Straight-line rent amortization Straight Line Rent Restricted stock and stock option amortization Allocated Share-based Compensation Expense Net gain on sales and acquisitions of properties Gain Loss On Sale And Acquisition Of Properties The amount of gain Loss on the sale and acquisition of properties. Warrant liability loss (gain) Fair Value Adjustment of Warrants Equity in earnings from Real Estate and Other Affiliates, net of distributions Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Provision for doubtful accounts Provision for Doubtful Accounts Master Planned Community land acquisitions Master Planned Community Land Acquisitions Represents master planned community land acquisitions expenditure during the period. Master Planned Community development expenditures Master Planned Community Development Expenditures Represents master planned community development expenditures during the period. Master Planned Community cost of sales Master Planned Community Cost of Sales Represents master planned community cost of sales. Condominium development expenditures Condominium Development Expenditures Represents condominium development expenditures during the period. Net changes: Increase (Decrease) in Operating Capital [Abstract] Accounts and notes receivable Increase (Decrease) in Accounts and Notes Receivable Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Condominium deposits received Increase (Decrease) in Customer Deposits Deferred expenses Increase (Decrease) in Deferred Charges Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Condominium Receivables Increase (Decrease) in Accounts Receivable Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Cash provided by operating activities Cash Flows from Investing Activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Property and equipment expenditures Payments to Acquire Property, Plant, and Equipment Operating Property Improvements Payments to Develop Real Estate Assets Property Development and Redevelopment Payments to Acquire and Develop Real Estate Reimbursement of development cost Proceeds from Advances for Construction Acquisition of assets Other Payments to Acquire Businesses Proceeds from sales of properties Proceeds from Sale of Real Estate Held-for-investment Proceeds from insurance claims Proceeds from Insurance Settlement, Investing Activities Reimbursements under Tax Increment Financings Proceeds From Tax Increment Financing Proceeds From Tax Increment Financing Notes issued to Real Estate and Other Affiliates and third party Origination of Notes Receivable from Related Parties Proceeds from repayment of note to Real Estate and Other Affiliates Repayment of Notes Receivable from Related Parties Distributions from Real Estate and Other Affiliates Proceeds from Distributions Received from Real Estate Partnerships Investments in Real Estate and Other Affiliates, net Payments to Acquire Interest in Subsidiaries and Affiliates Maturity of long term investment Proceeds from Maturities, Prepayments and Calls of Long-term Investments Cash used in investing activities Cash Flows from Financing Activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from mortgages, notes and loans payable Proceeds from Issuance of Long-term Debt Principal payments on mortgages, notes and loans payable Purchase of treasury stock Payments for Repurchase of Common Stock Premium paid to redeem 2021 Senior Notes Payments Of Premium On Redemption of Notes The amount of payments of premiums on the redemption of notes payable. Special Improvement District bond funds released from (held in) escrow Special Improvement District Bonds Held In Escrow Special Improvement District Bonds Released from (Held In) Escrow Deferred financing costs and bond issuance costs, net Payments of Financing Costs Taxes paid on stock options exercised and restricted stock vested Payments Related to Tax Withholding for Share-based Compensation Issuance of Management Warrants Proceeds from Warrant Exercises Acquisition of 1% partnership interest in 110 North Wacker Proceeds from (Payments for) Other Financing Activities Gain on unwinding of swaps Proceeds from Derivative Instrument, Financing Activities Stock options exercised Proceeds from Stock Options Exercised Issuance of noncontrolling interests Proceeds from Noncontrolling Interests Preferred dividend payment on behalf of REIT subsidiary Preferred Dividend Payment On Behalf Of REIT Subsidiary Represents Preferred dividend payment on behalf of REIT subsidiary Cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net change in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Cash, cash equivalents and restricted cash at beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash at end of period Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Interest paid Interest Paid, Net Interest capitalized Interest Costs Capitalized Income taxes paid (refunded), net Income Taxes Paid, Net Non-Cash Transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Special Improvement District bond transfers associated with land sales Special Improvement District Bond Transfers Associated with Land Sales This element represents special improvement district bond transfers associated with land sales. Accrued interest on construction loan borrowing Accrued Interest Included In Construction Loan Payable Non Cash Represents the accrued interest included in construction loan payable. Acquisition of below market lease intangible Below Market Lease, Acquired Exercise of Sponsor and Management Warrants Noncash Exercise Of Warrants The amount of warrants exercised as part of a noncash transaction. Capitalized stock compensation Capitalized Share Based Compensation Amounts capitalized relating to share based compensation Net assets acquired in the acquisition Net Assets Acquired In The Acquisition The amount representing the net assets acquired in the acquisition. Merriweather Post Pavilion donation Business Combination, Description [Abstract] Developments Noncash Or Part Noncash Acquisition Development Acquired The amount of Development that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Prepaid and other assets Prepaid And Other Assets Represents Prepaid and other assets Mortgage, notes and loans payable Mortgages, Notes and Loans Payable. The fair value of mortgages notes and loans assumed in noncash investing or financing activities related to our acquisition. Other liabilities Noncash Or Part Noncash Acquisition Other Liabilities Assumed The amount of Other liabilities that an entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition that are not presented as a separate disclosure or otherwise listed in the existing taxonomy. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-In Capital Additional Paid-in Capital [Member] Accumulated Deficit Retained Earnings [Member] Accumulated Other Comprehensive (Loss) AOCI Including Portion Attributable to Noncontrolling Interest [Member] Treasury Stock Treasury Stock [Member] Total Stockholders' Equity Parent [Member] Noncontrolling Interests Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance at the beginning of the period (in shares) Shares, Outstanding Balance at the beginning of the period Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance at the beginning of the period (in shares) Treasury Stock, Common, Shares Preferred dividend payment on behalf of subsidiary Dividends, Preferred Stock, Cash Interest rate swaps, net of tax Pension adjustment, net of tax Capitalized swap interest, net of tax Issuance of Management Warrants Adjustments to Additional Paid in Capital, Warrant Issued Acquisition of noncontrolling partner's interest Adjustments To Additional Paid In Capital Acquisition Of Noncontrolling Partner Interest Amount of decrease in additional paid in capital (APIC) resulting from an acquisition of noncontrolling partner's interest. Stock plan activity (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Stock plan activity Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Treasury stock activity (in shares) Treasury Stock, Shares, Acquired Treasury stock activity Treasury Stock, Value, Acquired, Cost Method Initial consolidation of HOAs Initial Consolidation Of Hoas Amount of the initial consolidation of HOA's. Exercise of warrants (in shares) Stock Issued During Period Shares, Stock Warrants Exercised Number of share warrants (or share units) exercised during the current period. Exercise of warrants Stock Issued During Period Value Stock Warrants Exercise The amount of share warrants (or share units) exercised during the current period. Adoption of ASU 2014-09 Adoption of ASU 2017-12 Adoption of ASU 2018-02 Restricted stock activity (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted stock activity Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Repurchase of common shares (in shares) Stock Repurchased During Period, Shares Repurchase of common shares Stock Repurchased During Period, Value Contributions to joint ventures Noncontrolling Interest, Increase From Contributions To Joint Venture Noncontrolling Interest, Increase From Contributions To Joint Venture Balance at the end of the period Balance at the end of the period (in shares) Balance at the end of the period (in shares) REAL ESTATE AND OTHER AFFILIATES Equity Method Investments and Joint Ventures Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Summary of EPS calculations Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Quarterly Financial Information Disclosure [Abstract] Operating income Operating Income (Loss) Net income attributable to common stockholders Earnings Per Share [Abstract] Basic earnings (loss) per share: (in dollars per share) Earnings Per Share, Basic Diluted earnings (loss) per share: (in dollars per share) Earnings Per Share, Diluted Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Secured Mortgages, Notes and Loans Payable Secured Debt [Member] Interest Rate Collar Interest Rate Collar [Member] Interest Rate Collar [Member] Interest Rate Cap Interest Rate Cap [Member] Fixed-rate debt Long-term Debt, Percentage Bearing Fixed Interest, Amount Variable-rate debt Long-term Debt, Percentage Bearing Variable Interest, Amount Amount of hedged item Derivative, Amount of Hedged Item Total Assets Equity Method Investment, Summarized Financial Information, Assets Total Liabilities Equity Method Investment, Summarized Financial Information, Liabilities Total Equity Equity Method Investment Summarized Financial Information, Equity Net income Equity Method Investment, Summarized Financial Information, Net Income (Loss) Gross Margin Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) Building Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings Land Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land Improvements Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Improvements The amount of improvements recognized as of the acquisition date. Furniture, fixtures and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Furniture Fixtures and Equipment The amount of furniture, fixtures and equipment recognized as of the acquisition date. Leases in place Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Lease in Place The amount of lease-in place recognized as of the acquisition date. Other identifiable assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Other Identifiable Assets The amount of other identifiable assets recognized as of the acquisition date. Total IMPAIRMENT Asset Impairment Charges [Text Block] OTHER ASSETS AND LIABILITIES OTHER ASSETS AND LIABILITIES Other Assets and Liabilities [Text Block] Entire disclosure of other assets and other liabilities of the entity. Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Stock Options Employees Directors And Consultants Stock Options [Member] An arrangement whereby an employee, member of the Board of Directors or consultants are entitled to receive in the future, subject to vesting and other restrictions, a number of shares in the entity at a specified price, as defined in the agreement. Exercise Price Range [Axis] Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] $46.49 - 55.82 Exercise Price One [Member] Represents the exercise price one of options granted. $57.77 - 60.33 Exercise Price Two [Member] Represents the exercise price two of options granted. $61.64 - 69.75 Exercise Price Three [Member] Represents the exercise price three of options granted. $81.80 - 110.50 Exercise Price Four [Member] Represents the exercise price four of options granted. $112.64 - 151.72 Exercise Price Five [Member] Represents the exercise price five of options granted. Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] General and Administrative Expense General and Administrative Expense [Member] Stock-based plans Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Shares of common stock reserved for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Stock based compensation expense Share based compensation costs capitalized Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Maximum number of shares available for future grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Stock Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Stock options outstanding at the beginning of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Stock options outstanding at the end of the period (in shares) Stock options exercisable at the end of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Remaining unvested options outstanding and expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Stock options outstanding at the beginning of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Forfeited (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Expired (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Stock options outstanding at the end of the period (in dollars per share) Stock options exercisable at the end of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Stock options expected to vest at the end of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Weighted average remaining contractual term of stock options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted average remaining contractual term of stock options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Weighted average remaining contractual term of stock options expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Aggregate intrinsic value of stock options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Aggregate intrinsic value of stock options expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Exercise price range of stock options Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, End of Period [Abstract] Exercise Price (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price Number Outstanding (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Weighted Average Remaining Contractual Term Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term Number Exercisable (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Significant assumptions used in Black-Scholes option-pricing model Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Weighted average grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-average expected life of options Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Weighted-average risk-free interest rate (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Weighted-average expected volatility (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Expected annual dividend per share Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Expected Dividend Expiration period Share Based Compensation Arrangement by Share Based Payment, Award Expiration Period Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Exercisable period Share Based Compensation Arrangement by Share Based Payment Award Exercisable Period Represents the exercisable period of options. Unamortized stock option expense Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Weighted-average period for recognition of unamortized stock expense Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Losses on cash flow hedges Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest rate swap contracts Interest Rate Swap [Member] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Interest Expense Interest Expense [Member] Provision For Income Taxes Provision For Income Taxes [Member] Primary financial statement caption encompassing provision for income taxes. Reclassifications out of accumulated other comprehensive income (loss) Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Loss reclassified from accumulated other comprehensive loss to net income (loss) Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Fair value of financial instruments Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets: Assets, Fair Value Disclosure [Abstract] Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Interest rate swaps Interest Rate Derivative Assets, at Fair Value Liabilities Liabilities, Fair Value Disclosure [Abstract] Interest rate swaps Interest Rate Derivative Liabilities, at Fair Value Warrants Reconciliation of income tax expense computed by applying the Federal corporate tax rate to the provision for income taxes Effective Income Tax Rate Reconciliation, Amount [Abstract] Tax at statutory rate on earnings from continuing operations before income taxes Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Increase (decrease) in valuation allowance, net Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount State income taxes, net of Federal income tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Tax benefit from Tax Act Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Transition Tax on Accumulated Foreign Earnings, Amount Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017. Tax expense (benefit) from other change in rates, prior period adjustments and other permanent differences Income Tax Reconciliation, Change in Enacted Tax Rate and Other Permanent Differences Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates and other permanent differences. Tax benefit on equity compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount Tax expense on compensation disallowance Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount Tax benefit on historic tax credit Effective Income Tax Rate Reconciliation, Tax Credit, Amount Non-deductible warrant liability loss Income Tax Reconciliation, Nondeductible Expense Warrant Liability Gain (Loss) The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to warrant liability (gain) loss. Uncertain tax position benefit, excluding interest Income Tax Reconciliation Uncertain Tax Position Expense Excluding Interest The sum of the differences between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to all income tax contingencies excluding interest. Uncertain tax position interest, net of Federal income tax benefit Income Tax Reconciliation Uncertain Tax Position Interest Net of Federal Income Tax Benefit The sum of the differences between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to interest on income tax contingencies, net of Federal income tax benefit during the period. Income tax expense (benefit) FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] WARRANTS Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]