OTHER ASSETS AND LIABILITIES (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Prepaid Expenses and Other Assets
Special Improvement District receivable	$ 33,040,000	$ 33,318,000
Equipment, net of accumulated depreciation of $2.4 million and $0.7 million, respectively	19,906,000	20,284,000
Tenant incentives and other receivables	12,014,000	14,264,000
Federal income tax receivable	8,629,000	8,629,000
Prepaid expenses	10,560,000	9,196,000
Security and escrow deposits	9,483,000	9,829,000
Other	2,023,000	2,014,000
Total prepaid expenses and other assets	293,199,000	310,136,000
Accumulated depreciation on other equipment	2,800,000	2,400,000
Accounts Payable and Accrued Expenses
Construction payables	191,599,000	170,935,000
Accounts payable and accrued expenses	31,827,000	34,154,000
Condominium deposits	60,706,000	82,150,000
Membership deposits	21,448,000	21,023,000
Accrued interest	28,127,000	14,791,000
Accrued real estate taxes	5,041,000	9,903,000
Tenant and other deposits	11,758,000	12,756,000
Accrued payroll and other employee liabilities	10,561,000	25,838,000
Interest rate swap	3,307,000	3,144,000
Other	26,356,000	23,376,000
Total accounts payable and accrued expenses	458,267,000	466,017,000
Prepaid Expenses and Other Current Assets [Member]
Prepaid Expenses and Other Assets
Increase in prepaid expenses and other assets	16,900,000
Increase in acquired in-place leases	3,100,000
Increase in restricted condominium deposits	12,000,000
Accounts Payable and Accrued Liabilities [Member]
Accounts Payable and Accrued Expenses
Increase in accounts payable and accrued expenses	7,800,000
Increase in construction payable	20,700,000
Increase in accrued payroll	15,300,000
Decrease in accrued real estate taxes	4,900,000
Ward Centers [Member]
Prepaid Expenses and Other Assets
Number of new market rate towers	2
Ward Centers [Member] | Prepaid Expenses and Other Current Assets [Member]
Prepaid Expenses and Other Assets
Increase in condominium deposits	21,400,000
Shops at Summerlin Centre [Member] | Accounts Payable and Accrued Liabilities [Member]
Accounts Payable and Accrued Expenses
Increase in accrued interest	13,300,000
Ground Leases below Market [Member]
Prepaid Expenses and Other Assets
Net carrying amount	19,579,000	19,663,000
Condominium deposits	139,559,000	151,592,000
Tenant Leases above Market [Member]
Prepaid Expenses and Other Assets
Net carrying amount	4,365,000	4,656,000
Uncertain tax position asset	402,000	383,000
Leases, Acquired-in-Place [Member]
Prepaid Expenses and Other Assets
Net carrying amount	29,645,000	32,715,000
Intangibles	3,994,000	3,593,000
Ground Leases above Market [Member] | Accounts Payable and Accrued Liabilities [Member]
Accounts Payable and Accrued Expenses
Net carrying amount	2,232,000	2,272,000
Deferred income	$ 65,305,000	$ 65,675,000