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

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

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

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

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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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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The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position.

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MORTGAGES, NOTES AND LOANS PAYABLE, NET (Narrative) (Details)													6 Months Ended
	Aug. 06, 2019 USD ($)	Jun. 27, 2019 USD ($)	Jun. 20, 2019 USD ($)	Jun. 06, 2019 USD ($)	Jun. 05, 2019 USD ($)	Jun. 03, 2019 USD ($)	May 23, 2019 USD ($)	May 22, 2019 USD ($)	May 17, 2019 USD ($)	Apr. 09, 2019 USD ($)	Mar. 12, 2019 USD ($)	Feb. 28, 2019 USD ($) extention_option	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Mortgages, notes and loans payable
Land, buildings and equipment and developments in progress pledged as collateral													$ 4,900,000,000
Repayments of long-term debt													163,555,000	$ 41,573,000
Summerlin \| Special Improvement District bonds
Mortgages, notes and loans payable
New SIDs issued													0
Bond obligation													$ 100,000
8770 New Trails
Mortgages, notes and loans payable
Term of extension option		127 months
8770 New Trails \| Construction Loans
Mortgages, notes and loans payable
Loan amount		$ 35,500,000
8770 New Trails \| Construction Loans \| London Interbank Offered Rate (LIBOR)
Mortgages, notes and loans payable
Interest rate margin (as a percent)		2.45%
Seaport District \| Term Loan
Mortgages, notes and loans payable
Loan amount			$ 250,000,000.0
Interest rate (as a percent)			6.10%
Seaport District \| Term Loan \| London Interbank Offered Rate (LIBOR)
Mortgages, notes and loans payable
Interest rate margin (as a percent)			4.10%
Debt instrument, LIBOR cap			2.30%
Debt instrument, LIBOR floor			0.00%
A'ali'i
Mortgages, notes and loans payable
Term of extension option				1 year
A'ali'i \| Construction Loans
Mortgages, notes and loans payable
Loan amount				$ 293,700,000
A'ali'i \| Construction Loans \| London Interbank Offered Rate (LIBOR)
Mortgages, notes and loans payable
Interest rate margin (as a percent)				3.10%
Ke Kilohana \| Construction Loans
Mortgages, notes and loans payable
Repayments of long-term debt					$ 142,700,000
Long-term line of credit					$ 121,700,000
250 Water Street \| Mortgages
Mortgages, notes and loans payable
Repayments of long-term debt						$ 30,000,000.0
Facility amount						$ 99,700,000
Wacker110 N
Mortgages, notes and loans payable
Joint venture debt guaranteed							$ 100,600,000	$ 92,300,000
Increase in joint venture debt guaranteed							46,300,000
Wacker110 N \| Construction Loans
Mortgages, notes and loans payable
Loan amount							$ 558,900,000	$ 512,600,000
Mr. C Seaport
Mortgages, notes and loans payable
Loan amount									$ 41,000,000.0
Term of extension option									6 months
Mr. C Seaport \| London Interbank Offered Rate (LIBOR)
Mortgages, notes and loans payable
Interest rate margin (as a percent)									4.50%
Hhc242 Self Storage Facility
Mortgages, notes and loans payable
Long-term line of credit										$ 5,500,000
Hhc242 Self Storage Facility \| Construction Loans
Mortgages, notes and loans payable
Term of extension option										1 year
Hhc2978 Self Storage Facility
Mortgages, notes and loans payable
Long-term line of credit										$ 5,400,000
Hhc2978 Self Storage Facility \| Construction Loans
Mortgages, notes and loans payable
Term of extension option										1 year
Creekside Park West \| Construction Loans
Mortgages, notes and loans payable
Loan amount											$ 18,000,000.0
Term of extension option											1 year
Creekside Park West \| Construction Loans \| London Interbank Offered Rate (LIBOR)
Mortgages, notes and loans payable
Interest rate margin (as a percent)											2.25%
Resort And Conference Center \| Mortgages
Mortgages, notes and loans payable
Loan amount												$ 62,500,000
Term of extension option												1 year
Number of extension options \| extention_option												2
Resort And Conference Center \| Mortgages \| London Interbank Offered Rate (LIBOR)
Mortgages, notes and loans payable
Effective interest rate												2.50%
Subsequent Event \| Millennium Phase III Apartments \| Construction Loans
Mortgages, notes and loans payable
Loan amount	$ 30,700,000
Interest rate margin (as a percent)	1.75%
Term of extension option	1 year