CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flows from Operating Activities:
Net income	$ 57,726	$ 166,623	$ 202,326
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	113,518	116,401	81,878
Amortization	13,047	15,851	13,986
Amortization of deferred financing costs	9,347	5,587	6,977
Amortization of intangibles other than in-place leases	1,681	(1,327)	(1,857)
Straight-line rent amortization	(12,584)	(5,401)	(7,401)
Deferred income taxes	16,195	(43,463)	113,698
Restricted stock and stock option amortization	12,128	7,385	6,707
Net gain on sales and acquisitions of properties	0	(78,568)	(166,520)
Loss on redemption of senior notes due 2021	0	46,410	0
Warrant liability loss (gain)	0	43,443	24,410
Equity in earnings from Real Estate and Other Affiliates, net of distributions	(24,809)	(9,325)	(19,329)
Provision for doubtful accounts	6,078	2,710	5,664
Master Planned Community land acquisitions	(3,565)	(4,391)	(94)
Master Planned Community development expenditures	(195,504)	(193,087)	(149,592)
Master Planned Community cost of sales	113,282	107,218	88,065
Condominium development expenditures	(289,084)	(352,813)	(330,720)
Condominium rights and unit cost of sales	262,562	338,361	319,325
Provision for impairment	0	0	35,734
Percentage of completion revenue recognition from sale of condominium rights	0	(464,251)	(485,634)
Net changes:
Accounts and notes receivable	26,209	24,034	29,295
Prepaid expenses and other assets	(6,942)	(4,123)	(1,579)
Condominium deposits received	108,061	315,901	465,701
Deferred expenses	(17,697)	(15,156)	(8,911)
Accounts payable and accrued expenses	20,676	8,181	(46,322)
Condominium Receivables	0	140,122	67,574
Other, net	195	(755)	(4,278)
Cash provided by operating activities	210,520	165,567	239,103
Cash Flows from Investing Activities:
Property and equipment expenditures	(4,485)	(6,968)	(9,662)
Operating Property Improvements	(47,750)	(14,389)	(20,247)
Property Development and Redevelopment	(572,966)	(369,086)	(402,669)
Reimbursement of development cost	0	12,777	4,582
Acquisition of assets	(234,541)	(23,299)	(25,480)
Proceeds from sales of properties	0	88,384	410,917
Proceeds from insurance claims	0	0	3,107
Reimbursements under Tax Increment Financings	22,651	0	0
Notes issued to Real Estate and Other Affiliates and third party	(3,795)	(5,252)	(25,000)
Proceeds from repayment of note to Real Estate and Other Affiliates	0	0	25,000
Distributions from Real Estate and Other Affiliates	1,732	0	16,550
Investments in Real Estate and Other Affiliates, net	(2,617)	(1,138)	(11,056)
Maturity of long term investment	0	3,367	0
Cash used in investing activities	(841,771)	(315,604)	(33,958)
Cash Flows from Financing Activities:
Proceeds from mortgages, notes and loans payable	1,172,622	1,501,290	535,505
Principal payments on mortgages, notes and loans payable	(838,462)	(1,350,226)	(333,302)
Purchase of treasury stock	(58,715)	0	0
Premium paid to redeem 2021 Senior Notes	0	(39,966)	0
Special Improvement District bond funds released from (held in) escrow	8,051	35,678	11,236
Deferred financing costs and bond issuance costs, net	(15,833)	(14,188)	(5,531)
Taxes paid on stock options exercised and restricted stock vested	(3,995)	(11,672)	(1,231)
Issuance of Management Warrants	0	52,000	1,000
Acquisition of 1% partnership interest in 110 North Wacker	0	0	(8,000)
Gain on unwinding of swaps	16,104	0	0
Stock options exercised	11,748	22,708	180
Issuance of noncontrolling interests	99,646	3,586	0
Preferred dividend payment on behalf of REIT subsidiary	0	(12)	0
Cash provided by financing activities	391,166	199,198	199,857
Net change in cash, cash equivalents and restricted cash	(240,085)	49,161	405,002
Cash, cash equivalents and restricted cash at beginning of period	964,300	915,139	510,137
Cash, cash equivalents and restricted cash at end of period	724,215	964,300	915,139
Supplemental disclosure of cash flow information
Interest paid	149,693	129,022	123,687
Interest capitalized	77,918	73,207	64,344
Income taxes paid (refunded), net	70	(19,381)	11,191
Non-Cash Transactions:
Special Improvement District bond transfers associated with land sales	10,937	13,898	7,662
Accrued interest on construction loan borrowing	7,584	1,559	4,386
Acquisition of below market lease intangible	1,903	0	0
Exercise of Sponsor and Management Warrants	0	375,581	0
Capitalized stock compensation	2,434	1,121	2,559
Merriweather Post Pavilion donation
Developments	0	0	18,066
Prepaid and other assets	0	0	(10,597)
Mortgage, notes and loans payable	0	0	(2,834)
Other liabilities	0	0	(4,635)
Net assets acquired in the acquisition of Las Vegas Aviators
Non-Cash Transactions:
Net assets acquired in the acquisition	0	31,311	0
Net assets acquired in the acquisition of Constellation
Non-Cash Transactions:
Net assets acquired in the acquisition	0	41,744	0
Net assets acquired in the acquisition of Six Pines
Non-Cash Transactions:
Net assets acquired in the acquisition	$ 0	$ 0	$ 30,191