OTHER ASSETS AND LIABILITIES (Details) (USD $)	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Prepaid Expenses and Other Assets
Special Improvement District receivable	$ 39,644,000	$ 39,659,000
Tenant and other receivables	9,457,000	2,346,000
Federal income tax receivable	5,349,000	5,367,000
Prepaid expenses	3,947,000	4,757,000
Condominium deposits		19,616,000
Security and escrow deposits	9,689,000	12,865,000
Uncertain tax position asset	14,165,000	12,801,000
Intangibles	3,714,000	3,714,000
Other	7,950,000	8,592,000
Total prepaid expenses and other assets	125,803,000	143,470,000
Decrease in condominium deposits	19,600,000
Increase in tenant and other receivables	7,100,000
Increase in tenant and other receivables primarily related to lease incentives at Ward	2,000,000
Increase in tenant and other receivables primarily related to legal settlement at Riverwalk	4,500,000
Accounts Payable and Accrued Expenses
Construction payable	29,380,000	17,501,000
Accounts payable and accrued expenses	53,737,000	39,634,000
Condominium deposits		19,616,000
Membership deposits	22,416,000	20,248,000
Deferred gains/income	13,770,000	7,767,000
Accrued interest	2,316,000	2,425,000
Accrued real estate taxes	5,259,000	6,622,000
Tenant and other deposits	11,832,000	8,096,000
Insurance reserve	2,832,000	9,037,000
Accrued payroll and other employee liabilities	9,073,000	11,514,000
Interest rate swaps	4,281,000	7,183,000
Special assessment	2,868,000	2,868,000
Other	17,958,000	15,420,000
Total accounts payable and accrued expenses	178,232,000	170,521,000
Increase in construction payable	11,900,000
Increase in deferred gains/income	6,000,000
Below-market ground leases
Prepaid Expenses and Other Assets
Net carrying amount	20,171,000	20,341,000
Above-market tenant leases
Prepaid Expenses and Other Assets
Net carrying amount	1,200,000	1,896,000
In-place value tenant leases
Prepaid Expenses and Other Assets
Net carrying amount	10,517,000	11,516,000
Above-market ground leases
Accounts Payable and Accrued Expenses
Net carrying amount	$ 2,510,000	$ 2,590,000