Term Loan Term Loan [Member] Term Loan Santa Monica Place Santa Monica Place - Swapped Santa Monica Place Swapped [Member] Mortgage note payable on Santa Monica Place property pledged as collateral. Authorized repurchase amount Stock Repurchase Program, Authorized Amount Equipment and furnishings Fixtures and Equipment, Gross Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] 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. Letter of Credit Letter of Credit [Member] Outstanding balance to fixed rate Loans Receivable with Fixed Rates of Interest Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period New Credit Agreement New Credit Agreement [Member] New Credit Agreement Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net income (loss) attributable to the Company Net Income (Loss) Attributable to Parent Consolidated Entities [Axis] Consolidated Entities [Axis] Entity Emerging Growth Company Entity Emerging Growth Company Right-of-use assets, net Operating Lease, Right-of-Use Asset Statistical Measurement [Domain] Statistical Measurement [Domain] Pacific View Pacific View Mortgage [Member] Mortgage note payable on the Pacific View property pledged as collateral. Accumulated amortization for intangible assets Less accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Receivable Type [Axis] Receivable Type [Axis] Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Distributions declared Dividends, Common Stock, Cash 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. 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 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 (up to) Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option Additional paid-in capital Additional Paid in Capital, Common Stock Entity Filer Category Entity Filer Category Weighted average remaining lease term, operating leases Operating Lease, Weighted Average Remaining Lease Term Extension term Debt Instrument, Extension Term Debt Instrument, Extension Term Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Investment, Name [Axis] Investment, Name [Axis] 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. Contribution from noncontrolling interests Proceeds from Noncontrolling Interests Wilton Mall Wilton Mall [Member] Wilton Mall Net (decrease) increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Oaks, The The Oaks One Mortgage [Member] Mortgage note payable on the Oaks property pledged as collateral. Allocated values of leases Acquired Finite-Lived Intangible Assets [Line Items] Volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Leasing revenue Operating Lease, Lease Income Schedule of Components of Leasing Revenue Operating Lease, Lease Income [Table Text Block] Gain on sale of assets Gain (Loss) on Disposition of Assets Dispositions Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Subsequent Event Type [Domain] Subsequent Event Type [Domain] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Amortization expense for intangible assets Amortization of Intangible Assets Schedule of 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. Other comprehensive income (loss): Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Deferred financing costs Payments of Financing Costs March 2021 ATM Program March 2021 ATM Program [Member] March 2021 ATM Program Deferred tax assets Net deferred tax assets Deferred Tax Assets, Net Weighted average incremental borrowing rate, operating leases Operating Lease, Weighted Average Discount Rate, Percent Securities excluded from Diluted EPS (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Sale of Stock [Axis] Sale of Stock [Axis] Subsequent Events [Abstract] Subsequent Events [Abstract] 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 Business Acquisition [Axis] Business Acquisition [Axis] Estrella Falls Estrella Falls [Member] Estrella Falls Disposal Group Name [Axis] Disposal Group Name [Axis] Schedule of Loss on Sale or Write Down of Assets Details of Impairment of Long-Lived Assets Held and Used by Asset [Table Text Block] Equity Award [Domain] Award Type [Domain] Credit Facility [Domain] Credit Facility [Domain] ASSETS: Assets: Assets [Abstract] 2022 Lessor, Operating Lease, Payments to be Received, Next Rolling Twelve Months Related Party Transactions [Abstract] Related Party Transactions [Abstract] Fair value measurements on a nonrecurring basis Fair Value, Nonrecurring [Member] Land Land [Member] Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Chandler Fashion Center Chandler Fashion Center [Member] Represents the information pertaining to real estate property of the entity, Chandler Fashion Center. Market-indexed Long Term Incentive Plan, Market-based [Member] Long Term Incentive Plan, Market-based [Member] Leasing Deferred Costs, Leasing, Gross Distributions to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders 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 Entity Address, City or Town Entity Address, City or Town Accumulated Deficit Retained Earnings [Member] Above-Market Leases Above Market Leases [Member] Debt Instrument [Axis] Debt Instrument [Axis] Property area (in square feet) Area of Real Estate Property Interest expense (income): Interest Expense [Abstract] 2024 Lessor, Operating Lease, Payments to be Received, Rolling Year Three Ownership interest in operating partnership Noncontrolling Interest, Ownership Percentage by Parent Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] 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. Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Related Party [Axis] Related Party [Axis] Distributions of income from unconsolidated joint ventures Proceeds from Equity Method Investment, Distribution Service-based Long Term Incentive Plan, Service-based [Member] Long Term Incentive Plan, Service-based [Member] Secured by restricted cash Secured Debt [Member] Tenant and other receivables Increase (Decrease) in Accounts Receivable Danbury Fair Mall Danbury Fair Mall [Member] Danbury Fair Mall [Member] FlatIron Crossing FlatIron Crossing [Member] FlatIron Crossing [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Property, Plant and Equipment Property, Plant and Equipment [Line Items] Capitalized share and unit-based compensation costs Share-based Payment Arrangement, Amount Capitalized Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Financing Arrangement Co-venture Arrangement Disclosure [Text Block] This text block represents complete disclosure with respect to co-venture arrangements. Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Tucson La Encantada Tucson La Encantada Mortgage [Member] Mortgage note payable on the Tucson La Encantada property pledged as collateral. Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Payments on finance leases Finance Lease, Principal Payments Entity Interactive Data Current Entity Interactive Data Current Payments for joint venture Payments to Acquire Real Estate and Real Estate Joint Ventures Availability for additional borrowing Line of Credit Facility, Remaining Borrowing Capacity LTIP Units Long Term Incentive Plan [Member] Long-term incentive plan. Basic (in dollars per share) Earnings Per Share, Basic Deferred Charges and Other Assets, net Other Assets Disclosure [Text Block] Year 3 Lessee, Operating Lease, Liability, to be Paid, Year Three Due from affiliates Due from Affiliates 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 Document Type Document Type Total Real Estate Investment Property, at Cost Leasing revenue—variable payments Variable Lease, Income Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Entity Current Reporting Status Entity Current Reporting Status 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 Mortgage notes payable Secured Debt Fresno Fashion Fair Fresno Fashion Fair [Member] Represents the information pertaining to real estate property of the entity, Fresno Fashion Fair. Deferred compensation plan assets Deferred Compensation Plan Assets (Recovery of) provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Long-term Debt Long-term Debt Assets Assets, Fair Value Disclosure Quoted Prices in Active Markets for Identical Assets Fair Value, Inputs, Level 1 [Member] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Other liabilities Other Liabilities Document Transition Report Document Transition Report Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Operating Leases Lessee, Operating Lease, Liability, Payment, Due [Abstract] 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] LIBOR floor Base Rate [Member] Finite-Lived Intangible Assets Finite-Lived Intangible Assets [Line Items] Total liabilities and equity Liabilities and Equity Distributions equal to the partner's share of net (loss) income Income (Loss) From Joint Venture Income (Loss) From Joint Venture Interest rate cap/swap agreements Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Total minimum rental payments Lessor, Operating Lease, Payments to be Received Year 5 Lessee, Operating Lease, Liability, to be Paid, Year Five Scenario [Axis] Scenario [Axis] Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Below-Market Leases Below Market Lease [Abstract] Proceeds from mortgages, bank and other notes payable Proceeds from Issuance of Long-term Debt and Capital Securities, Net LIABILITIES AND EQUITY: Liabilities and partners' capital: Liabilities and Equity [Abstract] Swaps Interest Rate Swap [Member] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Earnings Per Share ("EPS") Earnings Per Share [Text Block] Expenses: Operating Expenses [Abstract] 2026 Lessor, Operating Lease, Payments to be Received, Rolling Year Five Discount rate Financing Arrangement, Discount Rate Financing Arrangement, Discount Rate Minimum Minimum [Member] PPR Portfolio Pacific Premier Retail LP [Member] Represents Pacific Premier Retail LP, a joint venture in which the entity has made investment. Schedule of Components of Property, net Schedule of Real Estate Properties [Table Text Block] January 1, 2021 January 1, 2021 [Member] January 1, 2021 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 Lease liabilities Operating And Finance Lease, Liability Operating And Finance Lease, Liability Noncontrolling Interest [Abstract] Noncontrolling Interest [Abstract] Outstanding borrowings under the line of credit Long-term Line of Credit Year 2 Lessee, Operating Lease, Liability, to be Paid, Year Two Schedule of Minimum Rental Payments Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block] Investments in unconsolidated joint ventures: Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract] Unamortized deferred finance costs Debt Issuance Costs, Net Stock Units Stock Units Stock Units [Member] Stock units as awarded by an entity to their employees as a form of incentive compensation. In-place lease values, leasing commissions and legal costs Leases, Acquired-in-Place [Member] Leases Lessee, Finance Leases [Text Block] Trading Symbol Trading Symbol Ownership percentage at completion of acquisition (as a percent) Business Acquisition, Percentage of Voting Interests Acquired Receivable Type [Domain] Receivable [Domain] Stock offerings, net Stock Issued During Period, Value, New Issues REIT general and administrative expenses General and Administrative Expense Bank and Other Notes Payable Debt Disclosure [Text Block] 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. Schedule of Income Tax Benefit of TRSs Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] February 2021 ATM Program February 2021 ATM Program [Member] February 2021 ATM Program Line of Credit Line of Credit [Member] Future advance potential Scenario, Plan [Member] Share and Unit-Based Plans Share-based Payment Arrangement [Text Block] Significant Unobservable Inputs Fair Value, Inputs, Level 3 [Member] Dividends and distributions Payments of Ordinary Dividends, Common Stock Basis adjustment Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Accounting Policies [Abstract] Accounting Policies [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Stock offerings, net (in shares) Stock Issued During Period, Shares, New Issues Financing Arrangement Financing Arrangement [Member] Financing Arrangement [Member] 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 (in shares) 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. Outstanding obligations under construction agreements Construction Payable, Current Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities Contingent liability under letters of credit Letters of Credit Outstanding, Amount Total lease liabilities Operating Lease, Liability Tenant improvements Tenant Improvements Mortgage Notes Payable Mortgage Notes Payable Disclosure [Text Block] Common stock, $0.01 par value, 500,000,000 and 250,000,000 shares authorized at September 30, 2021 and December 31, 2020, respectively, and 213,307,990 and 149,770,575 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively Common Stock, Value, Issued Weighted average incremental borrowing rate, finance leases Finance Lease, Weighted Average Discount Rate, Percent 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 Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Commitments and contingencies Commitments and Contingencies Loans and Leases Receivable Disclosure [Abstract] Loans and Leases Receivable Disclosure [Abstract] Subsequent Event [Table] Subsequent Event [Table] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Amortization of ROU assets Finance Lease, Right-of-Use Asset, Amortization Management Companies Management fees Management Service [Member] 2021 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Other Commitments [Table] Other Commitments [Table] Adjustment of noncontrolling interests in Operating Partnership Noncontrolling Interest, Increase from Subsidiary Equity Issuance Loan funding Proceeds from Issuance of Debt Disposal Group Classification [Axis] Disposal Group Classification [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Ownership [Axis] Ownership [Axis] Document Period End Date Document Period End Date Loss on write-down of assets Impairment of Real Estate Total expenses Costs and Expenses Adjustment to fair value of financing arrangement obligation Fair Value Adjustment Of Finance Obligation Fair Value Adjustment Of Finance Obligation Entity Registrant Name Entity Registrant Name Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Property Land, Buildings and Improvements [Member] Net proceeds from stock offerings Sale of Stock, Consideration Received on Transaction Conversion of noncontrolling interests to common shares Stock Issued During Period, Value, Conversion of Units Thereafter Finance Lease, Liability, to be Paid, after Year Five Dividend declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Other Revenue from Contract with Customer, Excluding Assessed Tax Less imputed interest Finance Lease, Liability, Undiscounted Excess Amount Numerator Net Income (Loss) Available to Common Stockholders, Basic [Abstract] 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. Tenant and Other Receivables, net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Stock options Share-based Payment Arrangement, Option [Member] Contributions to unconsolidated joint ventures Payments to Acquire Interest in Joint Venture Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Year 5 Finance Lease, Liability, to be Paid, Year Five Common Stock Common Stock [Member] Variable Rate [Axis] Variable Rate [Axis] 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. Weighted average remaining lease term, finance leases Finance Lease, Weighted Average Remaining Lease Term Redemption of noncontrolling interests Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Other Real Estate, Other [Member] 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] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Amortization of share and unit-based plans Share-based Payment Arrangement, Noncash Expense Vintage Faire Mall Vintage Faire Mall Mortgage [Member] Mortgage note payable on the Vintage Faire Mall property pledged as collateral. Variable Rate [Domain] Variable Rate [Domain] Additional Paid-in Capital Additional Paid-in Capital [Member] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Repayments of debt Repayments of Debt Fashion District Philadelphia Fashion District Philadelphia [Member] Fashion District Philadelphia [Member] Distributions declared, per share (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Conversion of noncontrolling interests to common shares (in shares) Stock Issued During Period, Shares, Conversion of Units In-place lease values Finite-Lived Intangible Asset, Acquired-in-Place Leases Prior revolving line of credit facility Prior Revolving Line of Credit Facility [Member] Prior Revolving Line of Credit Facility Draws Proceeds from Lines of Credit Notional Amount Derivative, Notional Amount Stock dividends (in shares) Stock Dividends, Shares Fair Value Derivative, Fair Value, Net Borrowing rate Line of Credit Facility, Interest Rate at Period End Maximum Maximum [Member] Leasing expenses Operating Lease, Initial Direct Cost Expense, over Term Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-based Payment Arrangement [Abstract] Total liabilities Liabilities Liabilities Cash portion of dividend Common Stock, Cash Dividend Rate, Percentage Common Stock, Cash Dividend Rate, Percentage Award Type [Axis] Award Type [Axis] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Schedule of Minimum Future Rental Payments Required Lessee, Operating Lease, Liability, Maturity [Table Text Block] 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) Total stockholders' equity Stockholders' Equity Attributable to Parent 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. -- Leases Lessor, Operating Leases [Text Block] Common stock, shares issued Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Issued Due from affiliates Increase (Decrease) Due from Affiliates Investments in Unconsolidated Joint Ventures Equity Method Investments and Joint Ventures Disclosure [Text Block] Freehold Raceway Mall Freehold Raceway Mall [Member] Represents the information pertaining to real estate property of the entity, Freehold Raceway Mall. Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Total leasing revenue Lease Income Interest expense capitalized Interest Costs Capitalized Other accrued liabilities Increase (Decrease) in Other Accrued Liabilities 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. Accounts receivable Accounts Receivable, before Allowance for Credit Loss Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] (Gain) 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 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 Land Land Tenant and other receivables, net Accounts and Financing Receivable, after Allowance for Credit Loss Total undiscounted rental payments Finance Lease, Liability, Payment, Due Fair Value, Measurement Frequency [Domain] Measurement Frequency [Domain] Current Current Income Tax Expense (Benefit) Face amount on debt Debt Instrument, Face Amount Total interest expense Interest expense Interest Expense Year 1 Finance Lease, Liability, to be Paid, Year One Effective interest rate (in percent) Effective Interest Rate (in percent) Debt Instrument, Interest Rate, Effective Percentage Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations and Disposal Groups [Abstract] Schedule of 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. 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. Schedule of Subsidiary of Limited Liability Company or Limited Partnership [Table] Schedule of Subsidiary of Limited Liability Company or Limited Partnership [Table] City Area Code City Area Code Tysons Corner LLC Tysons Corner LLC [Member] Represents the joint venture, Tysons Corner LLC. Accumulated deficit Retained Earnings (Accumulated Deficit) 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 Derivatives, Fair Value Derivatives, Fair Value [Line Items] Joint venture partner Co-venturer [Member] Conversion of Operating Partnership Units to common stock Conversion of Stock, Amount Converted Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Employee stock purchases (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Fair value of outstanding line of credit Line of Credit Facility, Fair Value of Amount Outstanding Total lease liabilities Finance Lease, Liability Risk free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 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 Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Income Statement [Abstract] Income Statement [Abstract] Investments in unconsolidated joint ventures Assets—Investments in unconsolidated joint ventures Equity Method Investments Amendment Flag Amendment Flag Joint Venture Corporate Joint Venture [Member] Construction in progress Development in Process Number of interest rate swap agreements Number of agreements Derivative, Number of Instruments Held Subsidiary of Limited Liability Company or Limited Partnership Subsidiary of Limited Liability Company or Limited Partnership [Line Items] Year 3 Finance Lease, Liability, to be Paid, Year Three Year 4 Finance Lease, Liability, to be Paid, Year Four Effective interest rate Derivative, Swaption Interest Rate Fair value of mortgage notes payable Notes Payable, Fair Value Disclosure SanTan Village Regional Center San Tan Village Regional Center Mortgage [Member] Mortgage note payable on the SanTan Village Regional Center property pledged as collateral. Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Related Party Transaction [Axis] Related Party Transaction [Axis] Year 2 Finance Lease, Liability, to be Paid, Year Two Shopping center and operating expenses Real Estate [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Income tax (expense) benefit Income tax expense (benefit) Total income tax (expense) benefit Income Tax Expense (Benefit) Total equity Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Equity Components [Axis] Equity Components [Axis] Antidilutive Securities [Axis] Antidilutive Securities [Axis] 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 Sale of Stock [Domain] Sale of Stock [Domain] Total undiscounted rental payments Lessee, Operating Lease, Liability, to be Paid Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Leasing revenue—fixed payments Operating Lease, Lease Income, Lease Payments Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Entity File Number Entity File Number Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Schedule of Activity of SARs And Stock Options Outstanding Share-based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block] Allocation of earnings to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Product and Service [Axis] Product and Service [Axis] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Schedule of Cash And Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Entity Small Business Entity Small Business Accrued development costs included in accounts payable and accrued expenses and other accrued liabilities Construction in Progress Expenditures Incurred but Not yet Paid Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Equity Component [Domain] Equity Component [Domain] Towne Mall Towne Mall Mortgage [Member] Mortgage note payable on the Towne Mall property pledged as collateral. Amortization of share and unit-based plans (in shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Year 1 Lessee, Operating Lease, Liability, to be Paid, Year One Finance lease costs: Lease, Finance Cost [Abstract] Lease, Finance Cost Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Disposal Group Name [Domain] Disposal Group Name [Domain] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Variable Interest Entity Variable Interest Entity [Line Items] Amortization of premium on mortgage notes payable Amortization of Debt Discount (Premium) Green Acres Commons Green Acres Commons [Member] Green Acres Commons [Member] Statement [Line Items] Statement [Line Items] Interest rate cap/swap agreements Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Below-Market Leases Below Market Lease [Member] Below Market Lease [Member] Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Amortization of share and unit-based plans Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Queens Center Queens Center [Member] Represents the joint venture, Queens Center. Schedule of Compensation Cost Under The Share And Unit-based Plans Share-based Payment Arrangement, Cost by Plan [Table Text Block] Year 4 Lessee, Operating Lease, Liability, to be Paid, Year Four Debt Disclosure [Abstract] Debt Disclosure [Abstract] Accrued percentage rents Accrued Income Receivable [Member] Entity Address, State or Province Entity Address, State or Province 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. Contributions from noncontrolling interests Noncontrolling Interest, Increase From Contributions From Noncontrolling Interests Noncontrolling Interest, Increase From Contributions From Noncontrolling Interests Level 2 measurement Significant Other Unobservable Inputs Fair Value, Inputs, Level 2 [Member] Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] LIBOR Rate Derivative, Variable Interest Rate Valuation allowance Deferred Tax Assets, Valuation Allowance 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 Less accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Interest on lease liabilities Finance Lease, Interest Expense Schedule of Reconciliation of Numerator and Denominator Used in Computation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Entity Shell Company Entity Shell Company Local Phone Number Local Phone Number Finance Leases Finance Lease, Liability, Payment, Due [Abstract] Schedule of Assets Measured on a Nonrecurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Sold Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Net proceeds from stock offerings Proceeds from Issuance of Common Stock Total assets Assets Assets Investment, Name [Domain] Investment, Name [Domain] Redemption of noncontrolling interests Payments to Noncontrolling Interests Common stock, shares authorized Common Stock, Shares Authorized Cash payments for interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Numerator for basic and diluted EPS—net income (loss) attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Diluted Buildings and improvements Investment Building and Building Improvements Numerator for basic and diluted EPS—net income (loss) attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic 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. Noncontrolling Interests Noncontrolling Interest [Member] Product and Service [Domain] Product and Service [Domain] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Interest rate on debt Debt Instrument, Interest Rate, Stated Percentage Gain on sales Gain (Loss) on Sale of Properties Derivative Contract [Domain] Derivative Contract [Domain] Less net income (loss) attributable to noncontrolling interests Less net income (loss) attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Noncontrolling Interests Noncontrolling Interest Disclosure [Text Block] Stock dividend Dividends, Stock Share-based Compensation Arrangement by Share-based Payment Award Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Revolving line of credit Revolving Credit Facility [Member] Investments in Unconsolidated Joint Ventures Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] Tucson La Encantada in Tucson, Arizona Tucson La Encantada in Tucson, Arizona [Member] Tucson La Encantada in Tucson, Arizona Measurement Frequency [Axis] Measurement Frequency [Axis] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Components of tenant and other receivables, net Accounts, Notes, Loans and Financing Receivable [Line Items] Volume weighted average trading price (in dollars per share) Volume Weighted Average Share Price Volume Weighted Average Share Price Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Schedule of Lease Costs Lease, Cost [Table Text Block] Entity Tax Identification Number Entity Tax Identification Number Subsequent events Subsequent Event [Line Items] Deferred charges and other assets, net Deferred charges and other assets, net Deferred Costs and Other Assets Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Related parties Interest (income) expense Related party interest (income) expense Interest Income (Expense), Related Party Interest Income (Expense), Related Party Subsequent Events Subsequent Events [Text Block] Other accrued liabilities Other Accrued Liabilities Comprehensive income (loss) attributable to the Company Comprehensive Income (Loss), Net of Tax, Attributable to Parent Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Weighted average number of common shares outstanding: Denominator Weighted Average Number of Shares Outstanding, Diluted [Abstract] Green Acres Mall Green Acres Mall [Member] Green Acres Mall Related Party Transaction Related Party Transaction [Line Items] Market rent per square foot Finance Leased Asset, Measurement Input Other assets Other Assets, Miscellaneous Equity in (loss) income of unconsolidated joint ventures Equity in (income) loss of unconsolidated joint ventures Company's equity in net (loss) income Income (Loss) from Equity Method Investments Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Gain on sale of land Gain (Loss) on Disposition of Other Assets Operating Partnership Variable Interest Entity, Primary Beneficiary [Member] Depreciation and amortization Depreciation, Depletion and Amortization Total Stockholders' Equity Parent [Member] Schedule Of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Number of finance leases Finance Lease, Number Of Leases Finance Lease, Number Of Leases Other assets Other Assets Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Four Lessee, Operating Lease, Liability, to be Paid, after Year Four 2023 Lessor, Operating Lease, Payments to be Received, Rolling Year Two Common Stock, shares outstanding Common Stock, Shares, Outstanding Above-Market Leases Above Market Leases [Abstract] Above Market Leases [Abstract] Depreciation expense Depreciation, Nonproduction Thereafter Finance Lease, Liability, to be Paid, after Year Four Finance Lease, Liability, to be Paid, after Year Four Gain (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 Shopping center and operating expenses Cost of Goods and Services Sold Revenues: Revenues: Revenues [Abstract] Stock dividend (in shares) Common Stock Dividends, Shares Ownership percentage Joint Venture Ownership Percent Joint Venture Ownership Percent Antidilutive Securities Excluded from Computation of Earnings Per Share Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Cap Interest Rate Cap [Member] Units Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Consolidated Entities [Domain] Consolidated Entities [Domain] Award Date [Domain] Award Date [Domain] Discontinued Operations: Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Total lease cost Lease, Cost Proceeds from finance lease Proceeds From Finance Lease Proceeds From Finance Lease Debt instrument term Debt Instrument, Term Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Sears South Plains Sears South Plains [Member] Sears South Plains Non-cash investing and financing transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Property, net Property, net Real Estate Investment Property, Net Terminal capitalization rate Financing Arrangement, Terminal Capitalization Rate Financing Arrangement, Terminal Capitalization Rate Green Acres Commons - Swapped Green Acre Common - Swapped [Member] Green Acre Common - Swapped Allocation of earnings to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted Schedule of 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. Mortgage loans payable on real estate Debt Instrument [Line Items] Payments on mortgages, bank and other notes payable Repayments of debt Repayments of Long-term Debt Allowance for doubtful accounts Allowance for Doubtful Accounts, Premiums and Other Receivables Earnings Per Share [Abstract] Earnings Per Share [Abstract] Thereafter Lessor, Operating Lease, Payments to be Received, after Rolling Year Five Related Party Transaction [Domain] Related Party Transaction [Domain] 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 Document Quarterly Report Document Quarterly Report Other assets Increase (Decrease) in Other Operating Assets Total revenues Total revenues Revenues Schedule of Financing Arrangement Activity Financing Arrangement [Table Text Block] Financing Arrangement [Table Text Block] Schedule of Joint Ventures Schedule of Joint Ventures [Line Items] -- None. No documentation exists for this element. -- 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, Options, Outstanding, Weighted Average Exercise Price Other Commitments [Line Items] Other Commitments [Line Items] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Expenses: Costs and Expenses [Abstract] Percentage of loan assumed by third party Percentage of Loan Assumed by Third Party Portion of the loan assumed by a third party. Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Compensation cost under share and unit-based plans Share-based Payment Arrangement, Expense Schedule of Equity Method Investments Schedule of Equity Method Investments [Line Items] Accounts payable and accrued expenses Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Income (loss) per common share—attributable to common stockholders: EPS—net income (loss) attributable to common stockholders Earnings Per Share, Basic and Diluted [Abstract] Limited partnership interest of the operating partnership Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Document Fiscal Period Focus Document Fiscal Period Focus Change in fair value of financing arrangement obligation Liabilities, Fair Value Adjustment Net income (loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest The Shops At Atlas Park The Shops At Atlas Park [Member] The Shops At Atlas Park [Member] Restricted cash Restricted Cash, Current Property improvements Payments to Develop Real Estate Assets 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 Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Number of shares issued in transaction (in shares) Sale of Stock, Number of Shares Issued in Transaction PPR Portfolio Pacific Premier Retail LLC [Member] Pacific Premier Retail LLC [Member] Deferred leasing costs Increase (Decrease) in Deferred Leasing Fees Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Original allocated value Finite-Lived Intangible Assets, Gross Award Date [Axis] Award Date [Axis] Leases [Abstract] Leases [Abstract] Entity Central Index Key Entity Central Index Key LIBOR London Interbank Offered Rate (LIBOR) [Member] Security Exchange Name Security Exchange Name Total expenses before interest Costs And Expenses Before Interest The sum of all costs of sales and operating expenses, excluding interest expense, for the period. Disposal Group Classification [Domain] Disposal Group Classification [Domain] Fashion Outlets of Chicago Fashion Outlets of Chicago Mortgage [Member] Mortgage note payable on the Fashion Outlets of Chicago property pledged as collateral. Other Interest Expense, Other Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 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. 2025 Lessor, Operating Lease, Payments to be Received, Rolling Year Four Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Proceeds from repayment of notes receivable Proceeds from Collection of Notes Receivable Income Taxes Income Tax Disclosure [Text Block] Allocated value net Below Market Lease, Net Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Related Party [Domain] Related Party [Domain] Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Activity Of Non-vested LTIP Units, Stock Awards, Phantom Stock And Stock Units Share-based Payment Arrangement, Option, Activity [Table Text Block] Victor Valley, Mall of Mall of Victor Valley Mortgage [Member] Mortgage note payable on the Mall of Victor Valley property pledged as collateral. Schedule of Allocated Values of Above-Market Leases and Below-Market Leases Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Variable interest rate spread (in percent) Debt Instrument, Basis Spread on Variable Rate Real Estate [Abstract] Real Estate [Abstract] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Redemption value of outstanding OP Units not owned by the Company Minority Interest Redemption Value Represents the aggregate redemption value for the noncontrolling interest. Less accumulated amortization Below Market Lease, Accumulated Amortization Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Class of Stock [Line Items] Class of Stock [Line Items] Intangible assets: Finite-Lived Intangible Assets, Gross [Abstract] Name of Property [Axis] Name of Property [Axis] Credit Facility [Axis] Credit Facility [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Changes in assets and liabilities, net of dispositions: Increase (Decrease) in Operating Capital [Abstract] Employee stock purchases Stock Issued During Period, Value, Employee Stock Purchase Plan Company's capital Company's capital Equity Method Investment, Underlying Equity in Net Assets Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] 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 Schedule of Joint Ventures [Table] Schedule of Joint Ventures [Table] A schedule providing information pertaining to the joint venture interests of the entity. Maximum contingent borrowing capacity Line Of Credit Facility, Maximum Contingent Borrowing Capacity Line Of Credit Facility, Maximum Contingent Borrowing Capacity Borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Ownership [Domain] Ownership [Domain] Entity Address, Postal Zip Code Entity Address, Postal Zip Code 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. Danbury Fair Mall Danbury Fair Mall Mortgage [Member] Mortgage note payable on the Danbury Fair Mall property pledged as collateral. (Provision for) recovery of doubtful accounts, net Provision (Recovery) for Lease Losses Provision (Recovery) for Lease Losses Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2021 Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Title of 12(b) Security Title of 12(b) Security Proceeds from share and unit-based plans Proceeds from Stock Plans Statement [Table] Statement [Table] 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. Paradise Valley Mall Paradise Valley Mall [Member] Paradise Valley Mall Original allocated value Below Market Lease, Gross Financing arrangement obligation Financing Arrangement Obligation Financing Arrangement Obligation Unrecognized compensation cost of share and unit-based plans Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Statistical Measurement [Axis] Statistical Measurement [Axis] Property, net Real Estate Disclosure [Text Block] Deferred rent receivable due to straight-line rent adjustments Deferred Rent Receivables, Net Subsequent event Subsequent Event [Member] Cover page. Cover [Abstract] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Variable rate Derivative, Basis Spread on Variable Rate Schedule of Deferred Charges and Other Assets, Net Schedule of Other Assets [Table Text Block] Allocated value net Finite-Lived Intangible Assets, Net Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Number of properties Number of Real Estate Properties Net income (loss) Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Name of Property [Domain] Name of Property [Domain] Freehold Raceway Mall Freehold Raceway Mall Mortgage [Member] Mortgage note payable on the Freehold Raceway Mall property pledged as collateral. Scenario [Domain] Scenario [Domain] Organization Nature of Operations [Text Block] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [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. Subsequent Event Type [Axis] Subsequent Event Type [Axis] 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. Phantom Stock Units Phantom Share Units (PSUs) [Member] Operating lease costs Operating Lease, Cost Related Party Transactions Related Party Transactions Disclosure [Text Block] Distributions from unconsolidated joint ventures Distributions Of Capital From Unconsolidated Entities And Other Cash inflows from unconsolidated entities and other. Total interest rate Line of Credit Facility, Interest Rate During Period Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Deferred Deferred Income Tax Expense (Benefit) Monthly Debt Service Debt Instrument, Periodic Payment