UNAUDITED QUARTERLY FINANCIAL DATA (Signficant Events by Quarter) (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended										6 Months Ended		9 Months Ended		12 Months Ended
	Mar. 17, 2011	Oct. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Mar. 31, 2011	Mar. 31, 2010	Jun. 30, 2011	Jun. 30, 2010	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Revenues		$ 39,374,000	$ 47,889,000	$ 35,811,000	$ 39,996,000	$ 42,430,000	$ 45,944,000	$ 43,276,000	$ 35,282,000	$ 25,238,000	$ 19,400,000	$ 25,422,000	$ 78,558,000	$ 44,822,000	$ 124,502,000	$ 70,060,000	$ 170,900,000	$ 166,932,000	$ 88,728,000
Operating Income (Loss)		3,985,000	16,238,000	5,810,000	13,478,000	6,023,000	15,070,000	5,896,000	8,404,000	(5,134,000)	(1,876,000)	4,420,000	14,300,000	2,544,000	29,370,000	(2,590,000)	40,274,000	35,393,000	(8,192,000)
Income (loss) from continuing operations		(239,000)	15,622,000	46,215,000	11,625,000	(3,625,000)	13,429,000	1,555,000	10,452,000	(6,589,000)	(1,845,000)		12,007,000	(1,257,000)	25,436,000	(7,846,000)	87,862,000	21,811,000	(17,297,000)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(2,200,000)	(20,000)	(8,000)	(14,000)	(16,000)	(26,000)	(23,000)	(2,153,000)	0	(1,000)	(2,000)		(2,153,000)	(2,000)	(2,176,000)	(3,000)	(58,000)	(2,202,000)	622,000
Net income (loss)		(259,000)	15,614,000	46,201,000	11,609,000	(3,651,000)	13,406,000	(598,000)	10,452,000	(6,590,000)	(1,847,000)	588,000	9,854,000	(1,259,000)	23,260,000	(7,849,000)	87,804,000	19,609,000	(16,675,000)
Net loss attributable to noncontrolling interests							513,000	513,000	625,000	1,275,000	615,000		1,138,000	998,000	1,651,000	2,273,000	223,000	2,111,000
Net income (loss) attributable to common shareholders		(433,000)	(2,267,000)	30,211,000	(2,382,000)	(3,591,000)	(517,000)	(8,953,000)	(1,502,000)	(5,315,000)	(1,232,000)	971,000	(10,455,000)	(261,000)	(10,972,000)	(5,576,000)	25,507,000	(14,563,000)	(13,451,000)
Income (Loss) from Continuing Operations, Per Basic and Diluted Share						$ (0.18)	$ (0.03)	$ (0.35)	$ (0.08)	$ (0.28)	$ (0.06)		$ (0.43)	$ (0.01)	$ (0.46)	$ (0.29)
Discontinued operations (in dollars per share)						$ 0.00	$ 0.00	$ (0.11)	$ 0.00	$ 0.00	$ 0.00		$ (0.11)	$ 0.00	$ (0.11)	$ 0.00
Net income (loss)						$ (0.18)	$ (0.03)	$ (0.46)	$ (0.08)	$ (0.28)	$ (0.06)		$ (0.54)	$ (0.01)	$ (0.57)	$ (0.29)
Continuing operations (in dollars per share)		$ (0.02)	$ (0.11)	$ 1.52	$ (0.12)				$ (80.00)			$ 50.00					$ 1.29	$ (0.64)	$ (0.74)
Discontinued operations (in dollars per share)		$ 0.00	$ 0.00	$ 0.00	$ 0.00												$ 0.00	$ (0.11)	$ 0.03
Earnings Per Share, Basic		$ (0.02)	$ (0.11)	$ 1.52	$ (0.12)												$ 1.29	$ (0.75)	$ (0.71)
Continuing operations (in dollars per share)		$ (0.02)	$ (0.11)	$ 1.44	$ (0.12)				$ (80.00)			$ 50.00					$ 1.24	$ (0.64)	$ (0.74)
Discontinued operations (in dollars per share)		$ 0.00	$ 0.00	$ 0.00	$ 0.00			$ (0.11)									$ 0.00	$ (0.11)	$ 0.03
Earnings Per Share, Diluted		$ (0.02)	$ (0.11)	$ 1.44	$ (0.12)												$ 1.24	$ (0.75)	$ (0.71)
Gain on sale of management contracts and equity investment									5,100,000									5,100,000
Gain on Sale of Management Contracts and Equity Investment, Net of Tax									3,200,000
Gain on Sale of Management Contracts and Equity Investment, Per Share, Net of Tax									$ 0.17
(Loss) income from discontinued operations								(3,400,000)									(90,000)	(3,387,000)	622,000
Real Estate Investment [Member] | Washington, DC Building [Member]
Gain (Loss) on Sale of Investments						800,000	7,600,000
Gain (Loss) on Sale of Investments, Net of Tax						361,000	3,300,000
Gain (Loss) on Sale of Investments, Per Share, Net of Tax						$ 0.02	$ 0.17
RAI [Member]
Net loss attributable to noncontrolling interests		193,000	36,000	(45,000)	39,000	460,000	513,000	513,000	625,000			383,000	1,138,000				223,000	2,111,000	3,224,000
Gain (Loss) on Sale of Investments									(1,461,000)			0	(1,364,000)	(424,000)	(1,282,000)	(451,000)	972,000	(1,198,000)	(451,000)
RSO [Member]
Net loss attributable to noncontrolling interests		(367,000)	(17,917,000)	(15,945,000)	(14,030,000)	(400,000)	(14,436,000)	(8,868,000)	(12,579,000)	0	0	0	(21,447,000)	0	(35,883,000)	0	(62,520,000)	(36,283,000)	0
Reportable Legal Entities [Member] | RAI [Member]
Revenues		18,664,000	17,208,000	13,784,000	14,780,000	21,400,000	27,589,000	20,347,000	16,680,000	25,238,000	19,400,000	25,422,000	37,027,000	44,822,000	64,616,000	70,060,000	64,436,000	86,016,000	88,728,000
Reportable Legal Entities [Member] | RSO [Member]
Revenues		25,211,000	35,669,000	26,262,000	28,726,000	25,211,000	21,987,000	26,150,000	22,638,000	0	0	0	48,788,000	0	70,775,000	0	123,698,000	95,986,000	0
Net loss attributable to noncontrolling interests																	(62,520,000)
Consolidation, Eliminations [Member]
Revenues		$ (4,501,000)	$ (4,988,000)	$ (4,235,000)	$ (3,510,000)	$ (4,181,000)	$ (3,632,000)	$ (3,221,000)	$ (4,036,000)	$ 0	$ 0	$ 0	$ (7,257,000)	$ 0	$ (10,889,000)	$ 0	$ (17,234,000)	$ (15,070,000)	$ 0