OTHER ASSETS AND LIABILITIES (Details) - USD ($)	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Prepaid Expenses and Other Assets
Condominium inventory	$ 56,547,000	$ 198,352,000
Straight-line rent	55,342,000	50,493,000
Intangibles	33,445,000	33,955,000
Prepaid expenses	19,918,000	16,981,000
Special Improvement District receivables	17,352,000	18,838,000
Security and escrow deposits	17,291,000	17,670,000
Equipment, net of net of accumulated depreciation of $9.6 million and $8.3 million, respectively	14,288,000	15,543,000
Other	9,865,000	18,429,000
Tenant incentives and other receivables	8,154,000	8,745,000
Food and beverage and lifestyle inventory	3,782,000	1,935,000
Federal income tax receivable	200,000	2,000,000
Prepaid expenses and other assets, net	246,906,000	411,636,000
Accumulated depreciation on other equipment	9,600,000	8,300,000
Decrease in prepaid expenses and other assets	164,700,000
Decrease in condominium inventory	141,800,000
Decrease in below-market ground leases	(18,300,000)
Accounts Payable and Accrued Liabilities [Abstract]
Construction payables	276,290,000	258,749,000
Condominium deposit liabilities	170,105,000	263,636,000
Deferred income	52,235,000	42,734,000
Interest rate swap liabilities	48,788,000	16,517,000
Tenant and other deposits	32,569,000	20,893,000
Accounts payable and accrued expenses	32,299,000	38,748,000
Accrued payroll and other employee liabilities	31,403,000	42,591,000
Accrued real estate taxes	28,551,000	26,171,000
Other	16,722,000	29,283,000
Accrued interest	10,547,000	23,080,000
Straight-line ground rent liability	0	16,870,000
Accounts payable and accrued expenses	699,509,000	779,272,000
Decrease in accounts payable and accrued expenses	79,800,000
Decrease in condominium deposits liability	93,500,000
Increase in interest rate swap derivative liabilities	32,300,000
Increase in construction payables	17,500,000
Decrease in straight-line ground rent liability	16,900,000
Increase (decrease) accrued interest	12,500,000
Increase (decrease) in tenant and other deposits related to increases in land sales deposits	11,700,000
Decrease in accrued payroll and other employee liabilities	11,200,000
In-place leases
Prepaid Expenses and Other Assets
TIF receivable	5,792,000	2,470,000
Net carrying amount	4,252,000	6,539,000
Above-market tenant leases
Prepaid Expenses and Other Assets
Net carrying amount	678,000	1,044,000
Interest rate swap derivative assets
Prepaid Expenses and Other Assets
Net carrying amount	0	18,296,000
Interest rate swap derivative assets	0	$ 346,000
Senior Notes, 5.375% | Senior Notes
Accounts Payable and Accrued Liabilities [Abstract]
Loan amount	$ 1,000,000,000.0
Interest rate (as a percent)	5.375%