Property area (in square feet) Area of Real Estate Property Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Document Type Document Type Receivable Type [Axis] Receivable Type [Axis] Co-Venture Arrangement [Abstract] Co-Venture Arrangement [Abstract] Co-Venture Arrangement [Abstract] Fashion Outlets of Niagara Falls USA Fashion Outlets at Niagara Mortgage [Member] Mortgage note payable on the Fashion Outlets at Niagara pledged as collateral, bearing interest at 6.46 percent and maturing in 2016. Conversion of noncontrolling interests to common shares (in shares) Stock Issued During Period, Shares, Conversion of Units Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Related Party [Axis] Related Party [Axis] Schedule of variable interest entities Schedule of Variable Interest Entities [Table Text Block] New Credit Agreement New Credit Agreement [Member] New Credit Agreement Amortization of premium on mortgage notes payable Amortization of Debt Discount (Premium) Management Companies Management fees Management Service [Member] Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Pacific View Pacific View Mortgage [Member] Mortgage note payable on the Pacific View property pledged as collateral. Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Number of management companies (in entities) Number of Real Estate Management Companies Represents the number of management companies through which the entity provides property management, leasing and redevelopment for its real estate portfolio. Distributions in excess of investments in unconsolidated joint ventures Liabilities—Distributions in excess of investments in unconsolidated joint ventures Investments in Unconsolidated Joint Ventures. The carrying amount of liabilities resulting from investments in unconsolidated real estate and joint ventures not separately presented as of the balance sheet date. Expanded line of credit facility Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option Statistical Measurement [Domain] Statistical Measurement [Domain] LIABILITIES AND EQUITY: Liabilities and partners' capital: Liabilities and Equity [Abstract] Line of Credit Line of Credit [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Distributions to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Amortization of ROU assets Finance Lease, Right-of-Use Asset, Amortization Extension term Debt Instrument, Extension Term Debt Instrument, Extension Term Monthly Debt Service Debt Instrument, Periodic Payment Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Loan funding Proceeds from Issuance of Debt Security Exchange Name Security Exchange Name Proceeds from sale of assets Proceeds from Sale of Partnership Interests Other Assets and Discontinued Operations, Net Cash inflows from the sale of partnership interests, other assets, and discontinued operations. Wilton Mall Wilton Mall [Member] Wilton Mall Oaks, The The Oaks One Mortgage [Member] Mortgage note payable on the Oaks property pledged as collateral. Conversion of noncontrolling interests to common shares Stock Issued During Period, Value, Conversion of Units Noncontrolling Interests Noncontrolling Interest Disclosure [Text Block] Schedule of LTIP units granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block] Balance at beginning of period (in dollars per share) Balance at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Variable Rate [Domain] Variable Rate [Domain] Straight-line rent and amortization of above and below market leases Straight Line Rent Adjustments and Amortization of above and below Market Leases Straight Line Rent Adjustments and Amortization of above and below Market Leases Variable Rate [Axis] Variable Rate [Axis] Commitments and contingencies Commitments and Contingencies Total undiscounted rental payments Finance Lease, Liability, Payment, Due Second vesting period Share-based Payment Arrangement, Tranche Two [Member] ASSETS: Assets: Assets [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Investment, Name [Axis] Investment, Name [Axis] Accounting Policies [Abstract] Accounting Policies [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Loans and Leases Receivable Disclosure [Abstract] Loans and Leases Receivable Disclosure [Abstract] Combined and condensed statements of operations of unconsolidated joint ventures Equity Method Investments, Summarized Financial Information Statement of Operations [Table Text Block] Disclosure of summarized statement of operations information for investments accounted for using the equity method of accounting. Amortization of share and unit-based plans Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Entity Address, State or Province Entity Address, State or Province Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Outstanding obligations under construction agreements Construction Payable, Current Other Commitments [Table] Other Commitments [Table] Accumulated deficit Retained Earnings (Accumulated Deficit) Mortgage notes payable Secured Debt Intangible assets: Finite-Lived Intangible Assets, Gross [Abstract] Right-of-use assets, net Operating Lease, Right-of-Use Asset Deferred Charges and Other Assets, net Other Assets Disclosure [Text Block] Interest rate cap/swap agreements Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Santa Monica Place Santa Monica Place Mortgage [Member] Mortgage note payable on Santa Monica Place property pledged as collateral. Year 1 Lessee, Operating Lease, Liability, to be Paid, Year One Total leasing revenue Lease Income Estrella Falls Estrella Falls [Member] Estrella Falls Contributions to unconsolidated joint ventures Payments to Acquire Interest in Joint Venture Balance at beginning of period (in shares) Balance at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Year 1 Finance Lease, Liability, to be Paid, Year One Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Deferred charges and other assets, net Deferred charges and other assets, net Deferred Costs and Other Assets Year 4 Lessee, Operating Lease, Liability, to be Paid, Year Four Unrecognized compensation cost of share and unit-based plans Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Change in fair value of financing arrangement obligation Liabilities, Fair Value Adjustment Market rent per square foot Finance Leased Asset, Measurement Input Total lease cost Lease, Cost Chandler Fashion Center Chandler Fashion Center [Member] Represents the information pertaining to real estate property of the entity, Chandler Fashion Center. Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Long Term Incentive Plan, Market-based Long Term Incentive Plan, Market-based [Member] Long Term Incentive Plan, Market-based [Member] Deferred financing costs Payments of Financing Costs Other Interest Expense, Other Allocated values of leases Acquired Finite-Lived Intangible Assets [Line Items] Payments on finance leases Finance Lease, Principal Payments Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Revenues Revenue from Contract with Customer, Excluding Assessed Tax Fair Value, Measurement Frequency [Domain] Measurement Frequency [Domain] Bank and other notes payable Convertible Debt, Line of Credit and Other Notes Payable Includes the current and noncurrent portions, carrying amount of debut identified as being convertible into another form of financial instrument, the carrying values of obligations drawn from a line of credit, and other notes payable. Net (loss) income Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Business Acquisition [Axis] Business Acquisition [Axis] Long Term Incentive Plan, Service-based Long Term Incentive Plan, Service-based [Member] Long Term Incentive Plan, Service-based [Member] Statement [Line Items] Statement [Line Items] FlatIron Crossing FlatIron Crossing [Member] FlatIron Crossing [Member] (Loss) earnings per common share—attributable to common stockholders: EPS—net (loss) income attributable to common stockholders Earnings Per Share, Basic and Diluted [Abstract] Debt instrument term Debt Instrument, Term Tenant and Other Receivables, net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Financing Arrangement Co-venture Arrangement Disclosure [Text Block] This text block represents complete disclosure with respect to co-venture arrangements. Tucson La Encantada Tucson La Encantada Mortgage [Member] Mortgage note payable on the Tucson La Encantada property pledged as collateral. Statement [Table] Statement [Table] Maximum contingent borrowing capacity Line of Credit Facility, Maximum Contingent Borrowing Capacity Line of Credit Facility, Maximum Contingent Borrowing Capacity Statistical Measurement [Axis] Statistical Measurement [Axis] Credit Facility [Axis] Credit Facility [Axis] LTIP Units Long Term Incentive Plan [Member] Long-term incentive plan. Provision for doubtful accounts Provision for Lease Losses Land Land Total minimum rental payments Lessor, Operating Lease, Payments to be Received Fair value measurements on a nonrecurring basis Fair Value, Nonrecurring [Member] Fair value of outstanding line of credit Line of Credit Facility, Fair Value of Amount Outstanding Basic and diluted (in dollars per share) Earnings Per Share, Basic and Diluted Entity Small Business Entity Small Business Operating Leases Lessee, Operating Lease, Liability, Payment, Due [Abstract] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Write-down of assets Impairment of Real Estate Bank and Other Notes Payable Debt Disclosure [Text Block] Accounts receivable Accounts Receivable, before Allowance for Credit Loss Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Number of trading days used to calculate redemption value Minority Interest, Redemption Value Basis Number of Trading Days Minority Interest, Redemption Value Basis Number of Trading Days Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Components of leasing revenue Operating Lease, Lease Income [Table Text Block] Number of interest rate swap agreements Number of agreements Derivative, Number of Instruments Held Amendment Flag Amendment Flag Reconciliation of numerator and denominator used in computation of earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Weighted average number of common shares outstanding: Denominator Weighted Average Number of Shares Outstanding, Diluted [Abstract] Fresno Fashion Fair Fresno Fashion Fair [Member] Represents the information pertaining to real estate property of the entity, Fresno Fashion Fair. Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Schedule of loss (gain) on sale or write down of assets Details of Impairment of Long-Lived Assets Held and Used by Asset [Table Text Block] Investments in unconsolidated joint ventures: Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract] Leases Lessee, Finance Leases [Text Block] Shopping center and operating expenses Real Estate [Member] Outstanding borrowings under the line of credit Long-term Line of Credit Repayments of debt Repayments of Debt Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Other comprehensive (loss) income: Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Entity Central Index Key Entity Central Index Key Related Party [Domain] Related Party [Domain] Measurement Frequency [Axis] Measurement Frequency [Axis] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Derivative Instrument [Axis] Derivative Instrument [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Lease liabilities Operating and Finance Lease, Liability Operating and Finance Lease, Liability Stock Options Share-based Compensation Arrangement by Share-based Payment Award, Stock Options, Outstanding [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Stock Options, Outstanding [Abstract] Below-Market Leases Below Market Lease [Abstract] Subsequent Events Subsequent Events [Text Block] Subsidiary of Limited Liability Company or Limited Partnership [Line Items] Subsidiary of Limited Liability Company or Limited Partnership [Line Items] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Conversion of Operating Partnership Units to common stock Conversion of Stock, Amount Converted Original allocated value Below Market Lease, Gross Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Interest expense capitalized Interest Costs Capitalized Other accrued liabilities Other Accrued Liabilities Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Year 2 Lessee, Operating Lease, Liability, to be Paid, Year Two Other Commitments [Line Items] Other Commitments [Line Items] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Discount rate Financing Arrangement, Discount Rate Financing Arrangement, Discount Rate PPR Portfolio Pacific Premier Retail LP [Member] Represents Pacific Premier Retail LP, a joint venture in which the entity has made investment. Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Notional Amount Derivative, Notional Amount January 1, 2021 January 1, 2021 [Member] January 1, 2021 Amortization expense for intangible assets Amortization of Intangible Assets Outside partners' capital Equity Method Investment, Summarized Financial Information, Equity or Capital Other Interests The amount of equity (capital) of an equity method investment of the entity that is attributable to other ownership interests. Revolving Loan Facility Matures On April 14, 2023 Revolving Loan Facility Matures On April 14, 2023 [Member] Revolving Loan Facility Matures On April 14, 2023 Summary of lease costs Lease, Cost [Table Text Block] Fair Value Derivative, Fair Value, Net Year 3 Lessee, Operating Lease, Liability, to be Paid, Year Three Buildings and improvements Investment Building and Building Improvements Investments in Unconsolidated Joint Ventures Equity Method Investments and Joint Ventures Disclosure [Text Block] Allocated value net Below Market Lease, Net Other liabilities Other Liabilities Stock offerings, net Stock Issued During Period, Value, New Issues Stock Units Stock Units Stock Units [Member] Stock units as awarded by an entity to their employees as a form of incentive compensation. Company's capital Company's capital Equity Method Investment, Underlying Equity in Net Assets Total assets Assets Assets Related Party Transactions Related Party Transactions Disclosure [Text Block] Scenario [Axis] Scenario [Axis] Balance at beginning of period (in shares) Balance at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Title of 12(b) Security Title of 12(b) Security Disposal Group Classification [Axis] Disposal Group Classification [Axis] Allocated value net Finite-Lived Intangible Assets, Net Finance Leases Finance Lease, Liability, Payment, Due [Abstract] Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Depreciation expense Depreciation, Nonproduction Subsequent Event Type [Axis] Subsequent Event Type [Axis] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Leases Lessor, Operating Leases [Text Block] Vesting [Domain] Vesting [Domain] Deferred charges and other assets, gross Deferred Costs and Other Assets, Gross Sum of the gross carrying amounts before accumulated amortization of deferred costs that are expected to be recognized as a charge against future earnings plus assets not otherwise specified in the taxonomy. Total interest expense Interest Expense Interest Expense Depreciation and amortization Depreciation, Depletion and Amortization Schedule of income tax benefit of TRSs Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Limited partnership interest of the operating partnership Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Product and Service [Axis] Product and Service [Axis] Total liabilities Liabilities Liabilities Financing Arrangement Financing Arrangement [Member] Financing Arrangement [Member] Finance Lease, Liability, Statement of Financial Position [Extensible List] Finance Lease, Liability, Statement of Financial Position [Extensible List] Chandler Fashion Center Chandler Fashion Center Mortgage [Member] Mortgage note payable on the Chandler Fashion Center property pledged as collateral. Additional shares available for sale Common Stock, Shares Available for Future Issuance Common Stock, Value Available for Future Issuance Partnership unit Partnership Units [Member] Represents units or equivalent units of ownership interest in an LLC or LP. Year 5 Finance Lease, Liability, to be Paid, Year Five Volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Leasing expenses Operating Lease, Initial Direct Cost Expense, over Term Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Basis adjustment Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Net (loss) income attributable to the Company Net Income (Loss) Available to Common Stockholders, Basic Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Real Estate [Abstract] Real Estate [Abstract] Deferred leasing costs Increase (Decrease) in Deferred Leasing Fees Phantom Stock Units Phantom Share Units (PSUs) [Member] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Distributions declared, per share (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Debt Instrument [Axis] Debt Instrument [Axis] Additional Paid-in Capital Additional Paid-in Capital [Member] Other assets Other Assets Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Class of Stock [Line Items] Class of Stock [Line Items] Construction in progress Development in Process Adjustments to reconcile net (loss) income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Interest on lease liabilities Finance Lease, Interest Expense Redemption of noncontrolling interests Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Summary of activity of SARs and stock options outstanding Share-based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block] Common Stock, shares outstanding Common Stock, Shares, Outstanding Investments in unconsolidated joint ventures Assets—Investments in unconsolidated joint ventures Equity Method Investments Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Revolving line of credit Revolving Credit Facility [Member] Subsequent event Subsequent Event [Member] Balance at beginning of period (in dollars per share) Balance at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Contingent liability under letters of credit Letters of Credit Outstanding, Amount Common stock, shares authorized Common Stock, Shares Authorized Ownership percentage at completion of acquisition (as a percent) Business Acquisition, Percentage of Voting Interests Acquired Loss on sale or write down of assets, net Gain (Loss) on Sale or Write Down of Assets Gain (Loss) on Sale or Write Down of Assets Mortgage Notes Payable Mortgage Notes Payable Disclosure [Text Block] ATM Programs ATM Programs [Member] ATM Programs Percentage of loan assumed by third party Joint Venture Ownership Percentage Sold The percentage of ownership interest in the joint venture sold by the entity during the period. Components of property Schedule of Real Estate Properties [Table Text Block] Income Statement [Abstract] Income Statement [Abstract] Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Gain on sale of assets Gain (Loss) on Disposition of Assets Unconsolidated Joint Ventures and Third Party Managed Properties Unconsolidated Joint Ventures and Third Party Managed Properties [Member] Represents unconsolidated joint ventures and third-party properties that engage the entity to manage their operations. Over-Allotment Option Over-Allotment Option [Member] Operating Partnership Variable Interest Entity, Primary Beneficiary [Member] Name of Property [Domain] Name of Property [Domain] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Kings Plaza Shopping Center Kings Plaza Mortgage [Member] Mortgage note payable on the Kings Plaza property pledged as collateral. Development and leasing fees Development and Leasing Fees [Member] Development and Leasing Fees [Member] Vintage Faire Mall Vintage Faire Mall Mortgage [Member] Mortgage note payable on the Vintage Faire Mall property pledged as collateral. Fashion District Philadelphia Fashion District Philadelphia [Member] Fashion District Philadelphia [Member] Consolidated Entities [Axis] Consolidated Entities [Axis] Comprehensive (loss) income attributable to the Company Comprehensive Income (Loss), Net of Tax, Attributable to Parent Year 3 Finance Lease, Liability, to be Paid, Year Three Payments for joint venture Payments to Acquire Real Estate and Real Estate Joint Ventures Numerator Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Cap Interest Rate Cap [Member] Scenario [Domain] Scenario [Domain] City Area Code City Area Code 2022 Lessor, Operating Lease, Payments to be Received, Next Rolling Twelve Months Document Period End Date Document Period End Date Equity in income of unconsolidated joint ventures Equity in income of unconsolidated joint ventures Company's equity in net (loss) income Income (Loss) from Equity Method Investments Authorized repurchase amount Stock Repurchase Program, Authorized Amount Net (loss) income Net (loss) income Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest 2026 Lessor, Operating Lease, Payments to be Received, Rolling Year Five Cash portion of dividend Common Stock, Cash Dividend Rate, Percentage Common Stock, Cash Dividend Rate, Percentage Property Land, Buildings and Improvements [Member] Value Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments other than Options Weighted Average Exercise Price [Roll forward] -- None. No documentation exists for this element. -- Capitalized share and unit-based compensation costs Share-based Payment Arrangement, Amount Capitalized Compensation cost under the share and unit-based plans Share-based Payment Arrangement, Cost by Plan [Table Text Block] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Amortization of share and unit-based plans Share-based Payment Arrangement, Noncash Expense Operating Lease, Liability, Statement of Financial Position [Extensible List] Operating Lease, Liability, Statement of Financial Position [Extensible List] Cover page. Cover [Abstract] LIBOR floor Base Rate [Member] Freehold Raceway Mall Freehold Raceway Mall [Member] Represents the information pertaining to real estate property of the entity, Freehold Raceway Mall. Above-market leases Finite Lived Intangible Asset above Market Leases Gross carrying amount before accumulated amortization as of the balance sheet date of the intangible asset for leases acquired as part of a real property acquisition at above market lease rate. Equipment and furnishings Fixtures and Equipment, Gross Long-term Debt Long-term Debt Tenant improvements Tenant Improvements Term Loan Facility Matures On April 14, 2024 Term Loan Facility Matures On April 14, 2024 [Member] Term Loan Facility Matures On April 14, 2024 2024 Lessor, Operating Lease, Payments to be Received, Rolling Year Three In-place lease values, leasing commissions and legal costs Leases, Acquired-in-Place [Member] Deferred tax assets Net deferred tax assets Deferred Tax Assets, Net Operating expenses Cost of Goods and Services Sold Total expenses Costs and Expenses Award Date [Domain] Award Date [Domain] Combined and condensed balance sheets of unconsolidated joint ventures Equity Method Investments, Summarized Financial Information Balance Sheet [Table Text Block] Disclosure of summarized balance sheet financial information for investments accounted for using the equity method of accounting. Equity Components [Axis] Equity Components [Axis] Interest rate cap/swap agreements Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Stock dividend (in shares) Common Stock Dividends, Shares Investments in unconsolidated joint ventures Investments in unconsolidated joint ventures Equity Method Investments, Net The carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee, net of the liability for distributions received in excess of the entity's investment. Tysons Corner LLC Tysons Corner LLC [Member] Represents the joint venture, Tysons Corner LLC. Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-based Payment Arrangement [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Minimum Minimum [Member] Land Land [Member] Consolidated Entities [Domain] Consolidated Entities [Domain] Award Date [Axis] Award Date [Axis] Convertible non-participating preferred units Preferred Nonparticipating Convertible Units [Member] Represents convertible non-participating units or equivalent units of ownership interest in an LLC or LP. Cash distribution, percent Joint Venture, Cash Distribution, Percent Joint Venture, Cash Distribution, Percent Less net (loss) income attributable to noncontrolling interests Less net (loss) income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Gain on sale of land Gain (Loss) on Disposition of Other Assets Entity Interactive Data Current Entity Interactive Data Current Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Revenues: Revenues: Revenues [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Summary of activity of non-vested LTIP units, stock awards, phantom stock and stock units Share-based Payment Arrangement, Option, Activity [Table Text Block] Components of tenant and other receivables, net Accounts, Notes, Loans and Financing Receivable [Line Items] SanTan Village Regional Center San Tan Village Regional Center Mortgage [Member] Mortgage note payable on the SanTan Village Regional Center property pledged as collateral. Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Swaps Interest Rate Swap [Member] In-place lease values Finite-Lived Intangible Asset, Acquired-in-Place Leases Additional paid-in capital Additional Paid in Capital, Common Stock Entity Registrant Name Entity Registrant Name Subsequent Event Type [Domain] Subsequent Event Type [Domain] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Weighted average incremental borrowing rate, operating leases Operating Lease, Weighted Average Discount Rate, Percent Allocated values of above-market leases and below-market leases Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Total Real Estate Investment Property, at Cost Conversion rate of shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Other than Options, Conversion Rate Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Other than Options, Conversion Rate Proceeds from issuance net of common stock Proceeds From Issuance of Common Stock, Net of Issuance Costs Proceeds From Issuance of Common Stock, Net of Issuance Costs Unamortized deferred finance costs Debt Issuance Costs, Net Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Less imputed interest Finance Lease, Liability, Undiscounted Excess Amount Allowance for doubtful accounts Allowance for Doubtful Accounts, Premiums and Other Receivables Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Dividends and distributions Payments of Ordinary Dividends, Common Stock Effective interest rate (as a percent) Effective Interest Rate Debt Instrument, Interest Rate, Effective Percentage Contributions from noncontrolling interests Noncontrolling Interest, Increase from Contributions from Noncontrolling Interests Noncontrolling Interest, Increase from Contributions from Noncontrolling Interests Due from affiliates Increase (Decrease) Due from Affiliates Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Deferred rent receivable due to straight-line rent adjustments Deferred Rent Receivables, Net Total undiscounted rental payments Lessee, Operating Lease, Liability, to be Paid Ownership interest in operating partnership Noncontrolling Interest, Ownership Percentage by Parent Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Noncontrolling Interest [Abstract] Noncontrolling Interest [Abstract] Towne Mall Towne Mall Mortgage [Member] Mortgage note payable on the Towne Mall property pledged as collateral. Schedule of cash and cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Leasing revenue Operating Lease, Lease Income Finance lease costs: Lease, Finance Cost [Abstract] Lease, Finance Cost Sale of Stock [Axis] Sale of Stock [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Leasing revenue—fixed payments Operating Lease, Lease Income, Lease Payments Denominator for basic and diluted EPS—weighted average number of common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Tenant and other receivables, net Accounts and Financing Receivable, after Allowance for Credit Loss Green Acres Commons Green Acres Commons [Member] Green Acres Commons [Member] Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Below-Market Leases Below Market Lease [Member] Below Market Lease [Member] Document Transition Report Document Transition Report Queens Center Queens Center [Member] Represents the joint venture, Queens Center. Dividend declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Level 2 measurement Significant Other Unobservable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Assets measured on a nonrecurring basis Fair Value Measurements, Nonrecurring [Table Text Block] Document Quarterly Report Document Quarterly Report Schedule of fees charged to unconsolidated joint ventures Schedule of Revenues from Unconsolidated Joint Ventures and Third Party Managed Properties [Table Text Block] Tabular disclosure of revenue derived from management, development and leasing fees charged to unconsolidated joint ventures and third-party managed properties. Allocation of earnings to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic and Diluted Undistributed Earnings (Loss) Allocated to Participating Securities, Basic and Diluted Vesting [Axis] Vesting [Axis] Total expenses before interest Costs and Expenses before Interest, Total The sum of all costs of sales and operating expenses, excluding interest expense, for the period. Assets Assets, Fair Value Disclosure Unconsolidated Joint Ventures Unconsolidated Joint Ventures [Member] Represents unconsolidated joint ventures. Stock portion of dividend Common Stock, Stock Dividend Rate, Percentage Common Stock, Stock Dividend Rate, Percentage Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Dispositions Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Non-cash investing and financing transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Subsequent events Subsequent Event [Line Items] Credit Facility [Domain] Credit Facility [Domain] Derivative Contract [Domain] Derivative Contract [Domain] Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Letter of Credit Letter of Credit [Member] Basic (in dollars per share) Earnings Per Share, Basic Distributions in excess of the partner's share of net income Joint Venture, Distributions in Excess of Partner Share of Income (Loss) Joint Venture, Distributions in Excess of Partner Share of Income (Loss) Entity File Number Entity File Number Distributions equal to the partner's share of net (loss) income Income (Loss) from Joint Venture Income (Loss) from Joint Venture Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Debt Disclosure [Abstract] Debt Disclosure [Abstract] Weighted average remaining lease term, operating leases Operating Lease, Weighted Average Remaining Lease Term Effective interest rate Derivative, Swaption Interest Rate Accrued receivable of net proceeds from stock offering Common Stock, Share Subscribed but Unissued, Subscriptions Receivable Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Contribution from noncontrolling interests Proceeds from Noncontrolling Interests Payments on mortgages, bank and other notes payable Repayments of Long-term Debt Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Accrued interest percent to be repaid prior to cash distributions Joint Venture, Interest Rate, Cash Distribution, Percent Joint Venture, Interest Rate, Cash Distribution, Percent Other Joint Ventures Other Joint Ventures [Member] Represents other joint ventures in which the entity participates, not specifically identified. Compensation cost under share and unit-based plans Share-based Payment Arrangement, Expense Common stock, $0.01 par value, 250,000,000 shares authorized, 197,036,176 and 149,770,575 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively Common Stock, Value, Issued Disposal Group Name [Axis] Disposal Group Name [Axis] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Document Fiscal Year Focus Document Fiscal Year Focus Proceeds from mortgages, bank and other notes payable Proceeds from Issuance of Long-term Debt and Capital Securities, Net Restricted cash Restricted Cash, Current Deferred compensation plan assets Deferred Compensation Plan Assets Entity Current Reporting Status Entity Current Reporting Status Year 4 Finance Lease, Liability, to be Paid, Year Four Volume weighted average trading price (in dollars per share) Volume Weighted Average Share Price Volume Weighted Average Share Price Other assets Other Assets, Miscellaneous Related Party Transaction [Axis] Related Party Transaction [Axis] Receivable Type [Domain] Receivable [Domain] Subsequent Event [Table] Subsequent Event [Table] Property improvements Payments to Develop Real Estate Assets Amortization of share and unit-based plans (in shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Comprehensive (loss) income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Fair value per LTIP unit (in dollars per share) Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] LIBOR Rate Derivative, Variable Interest Rate Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Common stock, shares issued Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Issued Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Related parties Interest income (expense) Related party interest income Interest Income (Expense), Related Party Interest Income (Expense), Related Party Discontinued Operations: Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Total lease liabilities Operating Lease, Liability 2023 Lessor, Operating Lease, Payments to be Received, Rolling Year Two Adjustment to fair value of financing arrangement obligation Fair Value Adjustment of Finance Obligation Fair Value Adjustment of Finance Obligation Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Tenant and other receivables Increase (Decrease) in Accounts Receivable Mortgage loans payable on real estate Debt Instrument [Line Items] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Total stockholders' equity Stockholders' Equity Attributable to Parent Green Acres Mall Green Acres Mall [Member] Green Acres Mall Organization Nature of Operations [Text Block] Total liabilities and equity Liabilities and Equity Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Income Taxes Income Tax Disclosure [Text Block] Entity Address, City or Town Entity Address, City or Town Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Operating lease costs Operating Lease, Cost Total Stockholders' Equity Parent [Member] Year 5 Lessee, Operating Lease, Liability, to be Paid, Year Five REIT general and administrative expenses General and Administrative Expense Securities excluded from Diluted EPS (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Current Current Income Tax Expense (Benefit) Weighted average remaining lease term, finance leases Finance Lease, Weighted Average Remaining Lease Term Equity Component [Domain] Equity Component [Domain] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Four Lessee, Operating Lease, Liability, to be Paid, after Year Four Above-Market Leases Above Market Leases [Abstract] Above Market Leases [Abstract] Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Thereafter Finance Lease, Liability, to be Paid, after Year Four Finance Lease, Liability, to be Paid, after Year Four Leasing revenue—variable payments Variable Lease, Income Property, net Real Estate Disclosure [Text Block] Entity Tax Identification Number Entity Tax Identification Number Share and Unit-Based Plans Share-based Payment Arrangement [Text Block] Ownership percentage Joint Venture Ownership Percent Joint Venture Ownership Percent Changes in assets and liabilities, net of dispositions: Increase (Decrease) in Operating Capital [Abstract] 2021 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Redemption of noncontrolling interests Payments to Noncontrolling Interests Investment, Name [Domain] Investment, Name [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate (LIBOR) [Member] Leases [Abstract] Leases [Abstract] Proceeds from finance lease Proceeds From Finance Lease Proceeds From Finance Lease Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Expenses: Operating Expenses [Abstract] Sears South Plains Sears South Plains [Member] Sears South Plains Earnings Per Share [Abstract] Earnings Per Share [Abstract] Total lease liabilities Finance Lease, Liability Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Terminal capitalization rate Financing Arrangement, Terminal Capitalization Rate Financing Arrangement, Terminal Capitalization Rate Above-Market Leases Above Market Leases [Member] Numerator for basic and diluted EPS—net (loss) income attributable to common stockholders Net Income (Loss) Available to Common Stockholders after Allocation to Participating Securities, Basic and Diluted Net Income (Loss) Available to Common Stockholders after Allocation to Participating Securities, Basic and Diluted Disposal Group Name [Domain] Disposal Group Name [Domain] Mortgage notes payable Schedule of Mortgage Notes Payable [Table Text Block] Tabular disclosure of details related to mortgage notes payable by the entity, including properties which are pledged as collateral, carrying amounts, maturities and interest rates. Adjustment of noncontrolling interests in Operating Partnership Noncontrolling Interest, Increase from Subsidiary Equity Issuance Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Units Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Document Fiscal Period Focus Document Fiscal Period Focus Number of properties Number of Real Estate Properties Thereafter Finance Lease, Liability, to be Paid, after Year Five Development, redevelopment, expansion and renovation of properties Payments to Acquire, Develop, Redevelop, Expansion and Renovation Real Estate Payments to Acquire, Develop, Redevelop, Expansion and Renovation Real Estate Number of finance leases Finance Lease, Number of Leases Finance Lease, Number of Leases Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Financing arrangement activity Financing Arrangement [Table Text Block] Financing Arrangement [Table Text Block] Equity Method Investment, Nonconsolidated Investee or Group of Investees Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Schedule of Joint Ventures [Line Items] Schedule of Joint Ventures [Line Items] -- None. No documentation exists for this element. -- Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Proceeds from repayment of notes receivable Proceeds from Collection of Notes Receivable Joint Venture Corporate Joint Venture [Member] Entity Filer Category Entity Filer Category Common Stock Common Stock [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Product and Service [Domain] Product and Service [Domain] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Percentage of loan assumed by third party Percentage of Loan Assumed by Third Party Portion of the loan assumed by a third party. 2025 Lessor, Operating Lease, Payments to be Received, Rolling Year Four Weighted average incremental borrowing rate, finance leases Finance Lease, Weighted Average Discount Rate, Percent Leasing Deferred Costs, Leasing, Gross Less accumulated amortization Below Market Lease, Accumulated Amortization Secured by restricted cash Secured Debt [Member] Availability for additional borrowing Line of Credit Facility, Remaining Borrowing Capacity Stock offerings, net (in shares) Number of shares issued in transaction (in shares) Stock Issued During Period, Shares, New Issues Original allocated value Finite-Lived Intangible Assets, Gross Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Interest rate on debt Debt Instrument, Interest Rate, Stated Percentage Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Thereafter Lessor, Operating Lease, Payments to be Received, after Rolling Year Five Name of Property [Axis] Name of Property [Axis] PPR Portfolio Pacific Premier Retail LLC [Member] Pacific Premier Retail LLC [Member] Schedule of Subsidiary of Limited Liability Company or Limited Partnership [Table] Schedule of Subsidiary of Limited Liability Company or Limited Partnership [Table] Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Related Party Transactions [Abstract] Related Party Transactions [Abstract] Net increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Summarizes of minimum future rental payments required Lessee, Operating Lease, Liability, Maturity [Table Text Block] Stock options Share-based Payment Arrangement, Option [Member] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Other accrued liabilities Increase (Decrease) in Other Accrued Liabilities Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Variable interest rate spread (as a percent) Debt Instrument, Basis Spread on Variable Rate Expenses: Costs and Expenses [Abstract] Risk free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Fashion Outlets of Chicago Fashion Outlets of Chicago Mortgage [Member] Mortgage note payable on the Fashion Outlets of Chicago property pledged as collateral. Subsequent Events [Abstract] Subsequent Events [Abstract] Ownership [Axis] Ownership [Axis] Leasing commissions and legal costs Finite-lived Intangible Asset Leasing Commissions and Legal Costs Gross carrying amount before accumulated amortization as of the balance sheet date of capitalized leasing commissions and lease-related legal costs. Accrued development costs included in accounts payable and accrued expenses and other accrued liabilities Construction in Progress Expenditures Incurred but Not yet Paid Sale of Stock [Domain] Sale of Stock [Domain] Future advance potential Scenario, Plan [Member] Ownership [Domain] Ownership [Domain] Line of credit, average interest rate Line of Credit Facility, Interest Rate During Period Cash payments for interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Victor Valley, Mall of Mall of Victor Valley Mortgage [Member] Mortgage note payable on the Mall of Victor Valley property pledged as collateral. Redemption value of outstanding OP Units not owned by the Company Minority Interest Redemption Value Represents the aggregate redemption value for the noncontrolling interest. Total equity Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 2021 Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Total revenues Revenues Schedule of derivative instruments Schedule of Derivative Instruments [Table Text Block] Income tax (expense) benefit Income tax expense (benefit) Total income tax (expense) benefit Income Tax Expense (Benefit) Other Real Estate, Other [Member] Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Loss on sale or write down of assets, net Gain on sale or write down of assets, net Gain (loss) on sale or write down of assets, net Gain (Loss) on Sale of Assets and Asset Impairment Charges Diluted (in dollars per share) Earnings Per Share, Diluted Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Local Phone Number Local Phone Number Accrued percentage rents Accrued Income Receivable [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] First vesting period Share-based Payment Arrangement, Tranche One [Member] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Schedule of Joint Ventures [Table] Schedule of Joint Ventures [Table] A schedule providing information pertaining to the joint venture interests of the entity. Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Related Party Transaction [Domain] Related Party Transaction [Domain] Other assets Increase (Decrease) in Other Operating Assets Entity Emerging Growth Company Entity Emerging Growth Company Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Deferred Deferred Income Tax Expense (Benefit) Less accumulated amortization Accumulated Amortization Deferred Costs and Finite-lived Intangible Assets The accumulated amount of amortization related to deferred costs capitalized at the end of the reporting period and finite-lived intangible assets. Revolving line of credit Line of Credit Facility, Maximum Borrowing Capacity Award Type [Axis] Award Type [Axis] Danbury Fair Mall Danbury Fair Mall Mortgage [Member] Mortgage note payable on the Danbury Fair Mall property pledged as collateral. Due from affiliates Due from Affiliates Joint venture partner Co-venturer [Member] Accumulated amortization for intangible assets Less accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Maximum Maximum [Member] Amortization of difference between cost of investments and book value of underlying equity Equity Method Investment, Amortization of Difference Between Carrying Amount and Underlying Equity The item represents the amortization during the period of the difference between the amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and the amount of underlying equity in net assets the reporting Entity has in the investee. Noncontrolling Interests Noncontrolling Interest [Member] Paradise Valley Mall Paradise Valley Mall [Member] Paradise Valley Mall Distributions declared Dividends, Common Stock, Cash Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities Accumulated Deficit Retained Earnings [Member] Financing arrangement obligation Financing Arrangement Obligation Financing Arrangement Obligation Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] 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] Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Equity Award [Domain] Award Type [Domain] Summary of minimum rental payments Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block] Variable rate Derivative, Basis Spread on Variable Rate Accounts payable and accrued expenses Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Schedule of deferred charges and other assets, net Schedule of Other Assets [Table Text Block] Trading Symbol Trading Symbol Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations and Disposal Groups [Abstract] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Freehold Raceway Mall Freehold Raceway Mall Mortgage [Member] Mortgage note payable on the Freehold Raceway Mall property pledged as collateral. Less accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Fair value of mortgage notes payable Notes Payable, Fair Value Disclosure Earnings Per Share ("EPS") Earnings Per Share [Text Block] Interest expense (income): Interest Expense [Abstract] Chandler Freehold Freehold Raceway Mall and Chandler Fashion Center [Member] Represents the information pertaining to the Freehold Raceway Mall and Chandler Fashion Center properties. The Macerich Partnership, L.P. The Macerich Partnership, L.P. [Member] Represents the information pertaining to real estate property of the entity, The Macerich Partnership, L.P. Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Gain on sales Gain (Loss) on Sale of Properties Entity Shell Company Entity Shell Company Year 2 Finance Lease, Liability, to be Paid, Year Two Distributions from unconsolidated joint ventures Distributions of Capital from Unconsolidated Entities and Other Cash inflows from unconsolidated entities and other. Property, net Property, net Real Estate Investment Property, Net Draws Proceeds from Lines of Credit Statement of Financial Position [Abstract] Statement of Financial Position [Abstract]