SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) (USD $)	0 Months Ended	3 Months Ended								12 Months Ended
	Nov. 09, 2010	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012 item	Dec. 31, 2011	Dec. 31, 2010
Earnings per share
Shares issued to investors in connection with spin-off	5,250,000
Numerator:
Net income (loss)										$ (127,543,000)	$ 148,470,000	$ (69,230,000)
Net income (loss) attributable to noncontrolling interests										(745,000)	(1,290,000)	(201,000)
Net income (loss) attributable to common stockholders		(929,000)	(49,411,000)	34,310,000	(112,258,000)	31,427,000	164,295,000	65,973,000	(114,515,000)	(128,288,000)	147,180,000	(69,431,000)
Denominator:
Weighted average basic common shares outstanding										38,127,000	37,908,000	37,726,000
Numerator:
Net income (loss) attributable to common stockholders		(929,000)	(49,411,000)	34,310,000	(112,258,000)	31,427,000	164,295,000	65,973,000	(114,515,000)	(128,288,000)	147,180,000	(69,431,000)
Less: Warrant liability gain										185,017,000	(101,584,000)	140,900,000
Adjusted net income (loss) available to common stockholders										(128,288,000)	45,596,000	(69,431,000)
Denominator:
Weighted average basic common shares outstanding										38,127,000	37,908,000	37,726,000
Warrants (in shares)						1,074,000					1,074,000
Weighted average diluted common shares outstanding										38,127,000	38,982,000	37,726,000
Basic Earnings (Loss) Per Share (in dollars per share)		$ (0.01)	$ (1.30)	$ 0.91	$ (2.96)	$ 0.83	$ 4.33	$ 1.74	$ (3.02)	$ (3.36)	$ 3.88	$ (1.84)
Diluted Earnings (Loss) Per Share (in dollars per share)		$ (0.01)	$ (1.30)	$ 0.27	$ (2.96)	$ 0.80	$ (0.14)	$ 0.22	$ (3.02)	$ (3.36)	$ 1.17	$ (1.84)
Reorganization Items
Number of installments in which payment to GGP employees was made										2
KEIP expenses												13,500,000
Gains on liabilities subject to compromise - vendors												(791,000)
Gains on liabilities subject to compromise, net - mortgage debt												(2,749,000)
Interest income												(16,000)
U.S. Trustee fees												571,000
Restructuring costs												60,267,000
Total reorganization items												$ 57,282,000
Stock options
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)										861,940	715,137
Restricted stock
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)										57,933	42,553
Sponsor and management warrants
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)												10,683,726
Sponsors Warrants
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)										1,916,667
Management Warrants
Denominator:
Antidilutive securities excluded from computation of diluted earnings per share (in shares)										2,862,687
GGP
Earnings per share
Shares issued to predecessor as consideration for spin-off	32,500,000