Debt Instrument, Debt Default Threshold, Minimum Loan Amount

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- Definition

Debt Instrument, Interest Rate, Increase (Decrease) in Variable Rate Basis

+ References

No definition available.

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- Definition

Debt Instrument, Period of Extension Option

+ References

No definition available.

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- Definition

Secured Debt to Total Assets

+ References

No definition available.

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- Definition

EBITDA to Fixed Charged (Debt Service)

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- Definition

Income Available for Debt Service to Debt Service Charge

+ References

No definition available.

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- Definition

The percentage fee charged for exercising the extension option on the line of credit.

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- Definition

Long Term Debt, Net Excluding Deferred Financing Costs

+ References

No definition available.

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- Definition

Notice Required to Redeem Debt, Term

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- Definition

Number of extension options available.

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No definition available.

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- Definition

Number of Debt Instruments

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- Definition

Ratio of Total Debt to Total Assets

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No definition available.

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- Definition

Total Unencumbered Assets to Unsecured Debt

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Unencumbered NOI to Unsecured Interest Expense

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- Definition

Amount of outstanding long-term debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured.

+ References

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

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

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- Definition

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

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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.

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No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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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.

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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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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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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 set, unchanging rate.

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No definition available.

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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.

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No definition available.

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- Definition

Weighted average interest rate of long-term debt outstanding.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Mortgage and Other Indebtedness (Details)	1 Months Ended			3 Months Ended
Mortgage and Other Indebtedness (Details)	Mar. 31, 2017 USD ($) loan extension_option credit_line	Feb. 28, 2017 USD ($)	Jan. 31, 2017 USD ($)	Mar. 31, 2017 USD ($) loan extension_option credit_line	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	4.65%			4.65%		4.82%
Long-term debt, percentage bearing fixed interest, amount	$ 3,389,900,000			$ 3,389,900,000		$ 3,594,379,000
Mortgage and other indebtedness amount carrying value	1,149,563,000			1,149,563,000		888,770,000
Total fixed-rate and variable-rate debt	4,539,463,000			4,539,463,000		4,483,149,000
Unamortized deferred financing costs	(16,983,000)			(16,983,000)		(17,855,000)
Total mortgage and other indebtedness, net	$ 4,522,480,000			4,522,480,000		$ 4,465,294,000
Repayments of Long-term Debt				159,726,000
Gain on extinguishment of debt				$ 4,055,000	$ 6,000
Minimum
Debt Instrument [Line Items]
Notice required to redeem debt, term				30 days
Maximum
Debt Instrument [Line Items]
Notice required to redeem debt, term				60 days
Fixed Rate Interest
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	5.46%			5.46%		5.48%
Variable Rate Interest Member
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	2.28%			2.28%		2.15%
Wells Fargo Bank
Debt Instrument [Line Items]
Letter of credit, outstanding	$ 150,000			$ 150,000
Senior Unsecured Notes \| Fixed Rate Interest
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	5.25%			5.25%
Senior Notes Due 2024
Debt Instrument [Line Items]
Long-term debt, percentage bearing fixed interest, amount	$ 299,941,000			$ 299,941,000		$ 299,939,000
Unamortized debt discount	59,000			59,000		$ 61,000
Debt instrument, face amount	$ 300,000,000			$ 300,000,000
Senior Notes Due 2024 \| Fixed Rate Interest
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	4.60%			4.60%		4.60%
Senior Notes Due 2026
Debt Instrument [Line Items]
Long-term debt, percentage bearing fixed interest, amount	$ 394,367,000			$ 394,367,000		$ 394,260,000
Unamortized debt discount	5,633,000			5,633,000		$ 5,740,000
Debt instrument, face amount	$ 400,000,000			$ 400,000,000
Senior Notes Due 2026 \| Minimum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	40.00%			40.00%
Senior Notes Due 2026 \| Fixed Rate Interest
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	5.95%			5.95%		5.95%
Senior Notes Due 2023 and 2024 \| Minimum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	40.00%			40.00%
Senior Notes Due 2023 and 2024 \| Maximum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	45.00%			45.00%
Senior Notes Due 2023 and 2024 \| Fixed Rate Interest \| Minimum
Debt Instrument [Line Items]
Debt instrument, increase in variable interest rate	0.25%			0.25%
Senior Notes Due 2023 and 2024 \| Fixed Rate Interest \| Maximum
Debt Instrument [Line Items]
Debt instrument, increase in variable interest rate	1.00%			1.00%
Unsecured Debt
Debt Instrument [Line Items]
Number of unsecured term loans \| loan	3			3
Non-recourse loans on operating properties
Debt Instrument [Line Items]
Long-term debt, percentage bearing fixed interest, amount	$ 2,248,936,000			$ 2,248,936,000		$ 2,453,628,000
Mortgage and other indebtedness amount carrying value	$ 16,488,000			16,488,000		$ 19,055,000
Debt instrument, default minimum				$ 50,000,000
Non-recourse loans on operating properties \| Fixed Rate Interest
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	5.53%			5.53%		5.55%
Non-recourse loans on operating properties \| Variable Rate Interest Member
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	2.90%			2.90%		3.13%
Senior Notes Due 2023
Debt Instrument [Line Items]
Long-term debt, percentage bearing fixed interest, amount	$ 446,656,000			$ 446,656,000		$ 446,552,000
Unamortized debt discount	3,344,000			3,344,000		$ 3,448,000
Debt instrument, face amount	$ 450,000,000			$ 450,000,000
Senior Notes Due 2023 \| Fixed Rate Interest
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	5.25%			5.25%		5.25%
Recourse term loans on operating properties
Debt Instrument [Line Items]
Mortgage and other indebtedness amount carrying value	$ 24,727,000			$ 24,727,000		$ 24,428,000
Debt instrument, default minimum				$ 150,000,000
Recourse term loans on operating properties \| Variable Rate Interest Member
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	3.46%			3.46%		3.29%
Construction loan
Debt Instrument [Line Items]
Mortgage and other indebtedness amount carrying value	$ 56,243,000			$ 56,243,000		$ 39,263,000
Construction loan \| Variable Rate Interest Member
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	3.28%			3.28%		3.12%
Unsecured lines of credit
Debt Instrument [Line Items]
Mortgage and other indebtedness amount carrying value	$ 252,105,000			$ 252,105,000		$ 6,024,000
Unsecured lines of credit \| Variable Rate Interest Member
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	2.03%			2.03%		1.82%
Unsecured term loans
Debt Instrument [Line Items]
Mortgage and other indebtedness amount carrying value	$ 800,000,000			$ 800,000,000		$ 800,000,000
Unsecured term loans \| Variable Rate Interest Member
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	2.23%			2.23%		2.04%
Debt Covenant Requirement \| Senior Unsecured Notes
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	45.00%			45.00%
Total debt to total asset value (as a percent)	60.00%			60.00%
Total Unencumbered Assets to Unsecured Debt (as a percent)	150.00%			150.00%
Consolidated income available for debt service to annual debt service charge (as a percent)	150.00%			150.00%
Debt Covenant Requirement \| Unsecured Credit Facility and Term Loan
Debt Instrument [Line Items]
Total debt to total asset value (as a percent)	60.00%			60.00%
Total Unencumbered Assets to Unsecured Debt (as a percent)	160.00%			160.00%
Unencumbered NOI to unsecured interest expense (as a percent)	175.00%			175.00%
EBITDA to fixed charges (debt service) (as a percent)	150.00%			150.00%
Debt Covenant Ratios Actual \| Senior Unsecured Notes
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	27.00%			27.00%
Total debt to total asset value (as a percent)	53.00%			53.00%
Total Unencumbered Assets to Unsecured Debt (as a percent)	211.00%			211.00%
Consolidated income available for debt service to annual debt service charge (as a percent)	310.00%			310.00%
Debt Covenant Ratios Actual \| Unsecured Credit Facility and Term Loan
Debt Instrument [Line Items]
Total debt to total asset value (as a percent)	49.00%			49.00%
Total Unencumbered Assets to Unsecured Debt (as a percent)	230.00%			230.00%
Unencumbered NOI to unsecured interest expense (as a percent)	370.00%			370.00%
EBITDA to fixed charges (debt service) (as a percent)	250.00%			250.00%
Treasury Rate \| Senior Notes Due 2024
Debt Instrument [Line Items]
Derivative, basis spread on variable rate	0.35%			0.35%
Treasury Rate \| Senior Notes Due 2026
Debt Instrument [Line Items]
Derivative, basis spread on variable rate	0.50%			0.50%
Treasury Rate \| Senior Notes Due 2023
Debt Instrument [Line Items]
Derivative, basis spread on variable rate	0.40%			0.40%
Unsecured lines of credit
Debt Instrument [Line Items]
Number of unsecured term loans \| credit_line	3			3
Mortgage and other indebtedness amount carrying value	$ 252,105,000			$ 252,105,000
Loan agreement, basis spread on variable rate (as a percentage)				1.20%
Annual facility Fee (percent)				0.25%
Total Capacity	1,100,000,000			$ 1,100,000,000
Unsecured lines of credit \| Minimum
Debt Instrument [Line Items]
Loan agreement, basis spread on variable rate (as a percentage)				0.875%
Annual facility Fee (percent)				0.125%
Unsecured lines of credit \| Maximum
Debt Instrument [Line Items]
Loan agreement, basis spread on variable rate (as a percentage)				1.55%
Annual facility Fee (percent)				0.30%
Wells Fargo - Facility A
Debt Instrument [Line Items]
Mortgage and other indebtedness amount carrying value	0			$ 0
Total Capacity	500,000,000			500,000,000
Unsecured Line of Credit, First Tennessee
Debt Instrument [Line Items]
Mortgage and other indebtedness amount carrying value	27,400,000			27,400,000
Total Capacity	100,000,000			100,000,000
Wells Fargo - Facility B
Debt Instrument [Line Items]
Mortgage and other indebtedness amount carrying value	224,705,000			224,705,000
Total Capacity	500,000,000			500,000,000
Wells Fargo Bank
Debt Instrument [Line Items]
Total Capacity	30,000,000			30,000,000
First Tennessee Bank
Debt Instrument [Line Items]
Total Capacity	20,000,000			20,000,000
Unsecured Term Loan 2
Debt Instrument [Line Items]
Debt instrument, face amount	$ 350,000,000			$ 350,000,000
Loan agreement, basis spread on variable rate (as a percentage)				1.35%
Number of extension options available \| extension_option	2			2
Debt instrument, option extension term (in years)				1 year
Interest Rate at Repayment Date	2.13%			2.13%
Unsecured term loans
Debt Instrument [Line Items]
Debt instrument, face amount	$ 400,000,000			$ 400,000,000
Loan agreement, basis spread on variable rate (as a percentage)				1.50%
Interest Rate at Repayment Date	2.28%			2.28%
Unsecured Term Loan 3
Debt Instrument [Line Items]
Weighted Average Interest Rate (percent)	2.53%			2.53%
Debt instrument, face amount	$ 50,000,000			$ 50,000,000
Loan agreement, basis spread on variable rate (as a percentage)				1.55%
Wells Fargo Bank
Debt Instrument [Line Items]
Line of credit, extension fee (percent)				0.15%
Wells Fargo Bank \| Unsecured Line of Credit, First Tennessee
Debt Instrument [Line Items]
Line of credit, extension fee (percent)				0.20%
Chesterfield Mall and Wausau Center \| Mortgages
Debt Instrument [Line Items]
Total mortgage and other indebtedness, net	157,689,000			$ 157,689,000
Debt instrument, default amount	157,689,000			157,689,000
Outlet Shoppes at Atlanta - Ridgewalk \| Mortgages
Debt Instrument [Line Items]
Debt instrument, default amount	$ 2,466,000			$ 2,466,000
Midland Mall \| Mortgages
Debt Instrument [Line Items]
Debt instrument, default amount			$ 31,953,000
Gain on extinguishment of debt			$ 4,055,000
The Plaza at Fayette Mall
Debt Instrument [Line Items]
Interest Rate at Repayment Date			5.67%
Repayments of Long-term Debt			$ 37,146,000
The Shoppes at St Clair
Debt Instrument [Line Items]
Interest Rate at Repayment Date			5.67%
Repayments of Long-term Debt			$ 18,827,000
Hamilton Corner
Debt Instrument [Line Items]
Interest Rate at Repayment Date		5.67%
Repayments of Long-term Debt		$ 14,227,000
Layton Hills Mall
Debt Instrument [Line Items]
Interest Rate at Repayment Date	5.66%			5.66%
Repayments of Long-term Debt	$ 89,526,000