MORTGAGES, NOTES AND LOANS PAYABLE (Summary of Mortgages, Notes and Loans Payable) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Mar. 16, 2017
Debt Instrument [Line Items]
Mortgages, notes and loans payable	$ 1,520,577	$ 1,350,914
Unamortized bond issuance costs	(6,502)	(6,898)
Deferred financing costs	(19,496)	(12,946)
Total mortgages, notes and loans payable	3,137,773	2,857,945
Unsecured 5.375% Senior Notes
Debt Instrument [Line Items]
Fixed-rate debt:	$ 1,000,000	1,000,000
Interest rate (as a percent)	5.375%		5.375%
Secured mortgages, notes and loans payable
Debt Instrument [Line Items]
Fixed-rate debt:	$ 621,959	499,299
Amount of variable-rate debt swapped to fixed rate	172,500	428,300
Special Improvement District bonds
Debt Instrument [Line Items]
Fixed-rate debt:	$ 21,235	$ 27,576

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

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

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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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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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Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Section S99
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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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