Additional secured and unsecured lines of credit that can only be used for issuing letter of credit.

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- Definition

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

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No definition available.

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- Definition

Secured Debt to Total Assets

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No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Line of Credit Facility, Facility Fee Percentage

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No definition available.

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- Definition

Notice Required to Redeem Debt, Term

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No definition available.

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- Definition

Number of Debt Instruments

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No definition available.

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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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.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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

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.

+ References

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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.

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- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

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No definition available.

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- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The cash inflow from a borrowing supported by a written promise to pay an obligation.

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MORTGAGE AND OTHER INDEBTEDNESS, NET - Senior Unsecured Notes, Unsecured Lines of Credit and Unsecured Term Loans (Details)		1 Months Ended	12 Months Ended
	Sep. 01, 2017 USD ($)	Jul. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) credit_line	Jul. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)			5.10%		4.74%
Unamortized deferred financing costs			$ 15,963,000		$ 18,938,000
Mortgage and other indebtedness, variable-rate debt			$ 955,751,000		$ 1,090,810,000
Unsecured lines of credit
Debt Instrument [Line Items]
Number of debt instruments \| credit_line			3
Annual facility fee rate (as a percent)			0.30%
Weighted-average interest rate (as a percent)			3.90%
Secured credit facility, borrowing capacity			$ 1,100,000,000
Mortgage and other indebtedness, variable-rate debt			$ 183,972,000
Unsecured lines of credit \| Wells Fargo Bank
Debt Instrument [Line Items]
Extension fee rate (as a percent)			0.15%
Wells Fargo - Facility A
Debt Instrument [Line Items]
Secured credit facility, borrowing capacity			$ 500,000,000
Mortgage and other indebtedness, variable-rate debt			0
First Tennessee
Debt Instrument [Line Items]
Secured credit facility, borrowing capacity			100,000,000
Mortgage and other indebtedness, variable-rate debt			51,896,000
Additional secured and unsecured lines of credit with commitment			$ 20,000,000
First Tennessee \| Wells Fargo Bank
Debt Instrument [Line Items]
Extension fee rate (as a percent)			0.20%
Wells Fargo - Facility B
Debt Instrument [Line Items]
Face value of debt instrument			$ 4,833,000
Secured credit facility, borrowing capacity			500,000,000
Mortgage and other indebtedness, variable-rate debt			132,076,000
Unsecured Line of Credit, Facilities A and B
Debt Instrument [Line Items]
Additional secured and unsecured lines of credit with commitment			30,000,000
Unsecured Term Loan 2
Debt Instrument [Line Items]
Face value of debt instrument			$ 350,000,000
Interest rate (as a percent)			4.10%
Unsecured Term Loan 1
Debt Instrument [Line Items]
Face value of debt instrument				$ 300,000,000
Interest rate (as a percent)			4.35%
Unsecured Term Loan 3
Debt Instrument [Line Items]
Face value of debt instrument		$ 45,000,000
Weighted average interest rate (as a percent)			4.17%
LIBOR \| Unsecured lines of credit
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)			1.55%
LIBOR \| Unsecured Term Loan 2
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)			1.75%
LIBOR \| Unsecured Term Loan 1
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		1.50%	2.00%
LIBOR \| Unsecured Term Loan 3
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		1.65%	1.65%
Minimum
Debt Instrument [Line Items]
Notice required to redeem debt			30 days
Minimum \| Unsecured lines of credit
Debt Instrument [Line Items]
Commitment fee rate (as a percent)			0.125%
Minimum \| LIBOR \| Unsecured lines of credit
Debt Instrument [Line Items]
Basis spread on variable interest rate (as a percent)			0.875%
Basis spread on variable rate (as a percent)			0.875%
Minimum \| LIBOR \| Unsecured Term Loan 2
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)			0.90%
Maximum
Debt Instrument [Line Items]
Notice required to redeem debt			60 days
Maximum \| Unsecured lines of credit
Debt Instrument [Line Items]
Commitment fee rate (as a percent)			0.30%
Maximum \| LIBOR \| Unsecured lines of credit
Debt Instrument [Line Items]
Basis spread on variable interest rate (as a percent)			1.55%
Basis spread on variable rate (as a percent)			1.55%
Maximum \| LIBOR \| Unsecured Term Loan 2
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)			1.75%
Fixed Rate Interest
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)			5.37%		5.37%
Unsecured Term Loan
Debt Instrument [Line Items]
Face value of debt instrument			$ 695,000,000
Senior unsecured notes due 2023
Debt Instrument [Line Items]
Face value of debt instrument			450,000,000
Debt instrument, unamortized discount			$ 2,577,000		$ 3,024,000
Senior unsecured notes due 2023 \| Treasury Rate
Debt Instrument [Line Items]
Basis spread on variable interest rate (as a percent)			0.40%
Senior unsecured notes due 2023 \| Fixed Rate Interest
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)			5.25%		5.25%
Senior unsecured notes due 2024
Debt Instrument [Line Items]
Face value of debt instrument			$ 300,000,000
Debt instrument, unamortized discount			$ 47,000		$ 54,000
Senior unsecured notes due 2024 \| Treasury Rate
Debt Instrument [Line Items]
Basis spread on variable interest rate (as a percent)			0.35%
Senior unsecured notes due 2024 \| Minimum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)			40.00%
Senior unsecured notes due 2024 \| Maximum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)			45.00%
Senior unsecured notes due 2024 \| Fixed Rate Interest
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)			4.60%		4.60%
Senior unsecured notes due 2026
Debt Instrument [Line Items]
Face value of debt instrument			$ 625,000,000
Proceeds from mortgage and other indebtedness	$ 225,000,000
Unamortized deferred financing costs	1,879,000
Debt instrument, unamortized discount	3,938,000		$ 8,365,000		$ 9,152,000
Proceeds from debt	$ 219,183,000
Senior unsecured notes due 2026 \| Treasury Rate
Debt Instrument [Line Items]
Basis spread on variable interest rate (as a percent)			0.50%
Senior unsecured notes due 2026 \| Minimum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)			40.00%
Senior unsecured notes due 2026 \| Fixed Rate Interest
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)			5.95%		5.95%
Senior Notes Due 2023 and 2024 \| Fixed Rate Interest \| Minimum
Debt Instrument [Line Items]
Increase in variable interest rate basis (as a percent)			0.25%
Senior Notes Due 2023 and 2024 \| Fixed Rate Interest \| Maximum
Debt Instrument [Line Items]
Increase in variable interest rate basis (as a percent)			1.00%
Senior Unsecured Notes \| Actual
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)			24.00%