CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash Flows from Operating Activities:
Net income (loss)	$ 126,719	$ (23,520)	$ (73,695)
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:
Depreciation	82,275	50,683	29,637
Amortization	16,722	5,275	4,208
Amortization of deferred financing costs	5,734	4,378	2,952
Amortization of intangibles other than in-place leases	462	668	213
Straight-line rent amortization	(4,985)		(3,652)
Deferred income taxes	21,152	65,010	8,352
Restricted stock and stock option amortization	7,284	8,200	5,782
Gain on disposition of assets	(29,073)	(2,373)	(8,483)
Warrant liability (gain) loss	(58,320)	60,520	181,987
Reduction (increase) in tax indemnity receivable		(90)	1,206
Interest income related to tax indemnity		(21,510)	(2,078)
Loss on settlement of tax indemnity receivable		74,095
Equity in earnings from Real Estate and Other Affiliates, net of distributions	1,182	11,222	(7,121)
Provision for doubtful accounts	4,030	1,404	836
Master Planned Community land acquisitions	(7,293)	(100,913)	(5,667)
Master Planned Community development expenditures	(197,020)	(140,735)	(133,590)
Master Planned Community cost of sales	69,104	110,885	112,695
Condominium development expenditures	(191,313)	(75,990)	(21,213)
Condominium and other cost of sales	191,606	49,995	16,572
Deferred rental income	46,366
Proceeds from sale of condominium rights			47,500
Percentage of completion revenue recognition from sale of condominium rights and units	(305,284)	(83,565)	(32,969)
Non-monetary consideration related to land transactions		(17,406)
Proceeds received on settlement of tax indemnity receivable		138,000
Payment to IRS relating to tax court decision		(203,298)
Net changes:
Accounts and notes receivable	50,228	45,209	5,935
Prepaid expenses and other assets	(1,869)	(6,311)	(1,591)
Condominium deposits received	81,881	139,187
Deferred expenses	(11,743)	(36,641)	(19,364)
Accounts payable and accrued expenses	29,867	37,213	20,333
Condominium deposits held in escrow	(81,881)	(139,187)
Condominium deposits released from escrow	177,724
Other, net	375	(8,720)	547
Cash provided by (used in) operating activities	23,930	(58,315)	129,332
Cash Flows from Investing Activities:
Property and equipment expenditures	(15,439)	(8,521)	(31,768)
Operating property improvements	(8,409)	(6,299)	(17,231)
Property developments and redevelopments	(578,506)	(759,003)	(221,071)
Proceeds from Sale of Real Estate	25,139	11,953	10,814
Proceeds from insurance claims		12,901
Proceeds from sales of investment in Real Estate Affiliates			13,270
Investments in Real Estate and Other Affiliates, net	(2,171)	(6,248)	(4,035)
Change in restricted cash	(6,580)	20,930	(17,204)
Other	1,277
Cash used in investing activities	(575,568)	(746,456)	(294,325)
Cash Flows from Financing Activities:
Proceeds from mortgages, notes and loans payable	583,822	597,553	1,120,102
Principal payments on mortgages, notes and loans payable	(103,808)	(120,182)	(279,721)
Deferred financing costs	(4,285)	(7,085)	(6,594)
Preferred dividend payment on behalf of REIT subsidiary		(12)	(12)
Distributions (contributions) to noncontrolling interests			(3,031)
Special Improvement District bonds held in escrow	(39,241)
Cash provided by financing activities	436,488	470,274	830,744
Net change in cash and cash equivalents	(115,150)	(334,497)	665,751
Cash and cash equivalents at beginning of period	560,451	894,948	229,197
Cash and cash equivalents at end of period	445,301	560,451	894,948
Supplemental Disclosure of Cash Flow Information:
Interest paid	99,296	84,497	30,600
Interest capitalized	47,221	46,513	37,470
Income taxes paid	3,318	204,898	2,268
Non-Cash Transactions:
Special Improvement District bond transfers associated with land sales	18,775	8,786	14,376
Property developments and redevelopments	2,530	38,567	85,609
MPC Land contributed to Real Estate Affiliate	15,234
Acquisition of 1701 Lake Robbins:
Building		(3,979)
Below market lease obligation		3,979
70 Columbia Corporate Center
Non-Cash Transactions:
Special Improvement District bond transfers to Real Estate Affiliates	(1,518)
Capitalized stock compensation	2,526
Distribution of land to noncontrolling interests		2,818
1701 Lake Robbins
Acquisition of 1701 Lake Robbins:
Land		(1,663)
Building		(3,725)
Other assets		(848)
Mortgages, notes and loans payable		4,600
Other liabilities		152
10-60 Columbia Corporate Center
Acquisition of 1701 Lake Robbins:
Land		(23,404)
Building		(79,247)
Other assets		(28,997)
Other liabilities		(1,648)
85 South Street
Cash Flows from Investing Activities:
Acquisition of properties		(21,555)
Non-Cash Transactions:
Accrued interest included in construction loan payable	2,863	4,785
KR Holdings LLC
Cash Flows from Investing Activities:
Distribution from (investment in) KR Holdings, LLC	$ 9,121	$ 9,386	(16,750)
Summerlin Las Vegas Baseball Club LLC
Cash Flows from Investing Activities:
Investments in Real Estate and Other Affiliates, net			$ (10,350)