Debt Instrument, Debt Default Threshold, Minimum Loan Amount

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- Definition

Line of credit facility payment restrictions.

+ References

No definition available.

+ Details

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- Definition

Number of subsidiaries owned.

+ References

No definition available.

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- Definition

Number of Associated Centers Securing Credit Facility, Collateral

+ References

No definition available.

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- Definition

Number of Associated Centers not Classified as Collateral

+ References

No definition available.

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- Definition

Number of Malls Securing Credit Facility, Collateral

+ References

No definition available.

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- Definition

Number of Malls not Classified as Collateral

+ References

No definition available.

+ Details

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- Definition

Number of Mortgage Notes Receivable not Classified as Collateral

+ References

No definition available.

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- Definition

Ownership Interest in Guarantor Subsidiary by Operating Partnership, Percent

+ References

No definition available.

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Balance Type:	na
Period Type:	instant

- Definition

Quarterly Installment Payments on Debt

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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-Publisher FASB
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- Definition

The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

No definition available.

+ Details

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Mortgage and Other Indebtedness, Net - Narrative (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) mall associated_center subsidiary mortgage_note_receivable	Dec. 31, 2019 USD ($)	Jan. 01, 2019 USD ($)
Debt Instrument [Line Items]
Mortgage and other indebtedness, variable-rate debt	$ 1,203,075,000	$ 847,275,000
Number of Malls Securing Credit Facility, Collateral \| mall	17
Number of Associated Centers Securing Credit Facility, Collateral \| associated_center	3
Number of wholly owned subsidiaries \| subsidiary	36
Ownership Interest in Guarantor Subsidiary by Operating Partnership, Percent	100.00%
Line of credit facility payment restrictions	150,000
Guarantor Subsidiaries
Debt Instrument [Line Items]
Number of Malls Securing Credit Facility, Collateral \| mall	17
Number of Associated Centers Securing Credit Facility, Collateral \| associated_center	3
Number of malls not classified as collateral for the secured credit facility \| mall	4
Number of associated centers not classified as collateral for the secured credit facility \| associated_center	2
Number of Mortgage Notes Receivable not Classified as Collateral \| mortgage_note_receivable	4
COVID-19
Debt Instrument [Line Items]
Secured credit facility, impact of uncetainity	$ 280,000,000
Line of Credit \| Guarantor Subsidiaries \| Maximum
Debt Instrument [Line Items]
Line of credit, remaining borrowing capacity	100,000,000
Line of Credit \| Secured Debt
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,185,000,000
Debt Instrument, Interest Rate, Effective Percentage	3.83%
Quarterly Installment Payments on Debt	$ 35,000,000
Line of Credit \| Secured Debt \| Maximum
Debt Instrument [Line Items]
Line of credit, remaining borrowing capacity	$ 100,000
Line of Credit \| Secured Debt \| Minimum
Debt Instrument [Line Items]
Debt instrument, Minimum interest rate	10.00%
Line of Credit \| Secured Debt \| Guarantor Subsidiaries
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,185,000,000		$ 1,185,000,000
Line of credit, remaining borrowing capacity	$ 100,000,000
Line of Credit \| Secured Debt \| Guarantor Subsidiaries \| Maximum
Debt Instrument [Line Items]
Debt instrument, Minimum interest rate	10.00%
Line of Credit \| Secured Debt \| Minimum
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.25%
Line of Credit \| Secured Debt \| Maximum
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.35%
Revolving Credit Facility \| Secured Debt
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 685,000,000
Secured Term Loan \| Secured Debt
Debt Instrument [Line Items]
Debt Instrument, Face Amount	456,250,000
Secured Line of Credit
Debt Instrument [Line Items]
Mortgage and other indebtedness, variable-rate debt	675,925,000	$ 310,925,000
Secured Line of Credit \| Guarantor Subsidiaries
Debt Instrument [Line Items]
Mortgage and other indebtedness, variable-rate debt	675,925,000
Non-Recourse Loans on Operating Properties
Debt Instrument [Line Items]
Debt default threshold, minimum loan amount (greater than)	$ 50,000