CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Cash	$ 12,173,000	$ 11,899,000	$ 19,669,000	$ 12,803,000
Receivables from managed entities and related parties, net	30,303,000	30,618,000
Investments in real estate, net	17,016,000	18,041,000
Investment securities, at fair value	12,487,000	10,576,000
Investments in unconsolidated entities	13,518,000	13,156,000
Assets of consolidated variable interest entity (VIE) - RSO (see Note 18):
Total assets of consolidated VIE - RSO	2,400,757,000	2,476,557,000
Total assets	2,563,941,000	2,636,764,000	2,417,036,000
Liabilities:
Payables to managed entities and related parties	3,219,000	3,536,000
Borrowings	20,492,000
Liabilities of consolidated VIE - RSO (see Note 18):
Total liabilities of consolidated VIE - RSO	1,623,099,000	1,856,839,000
Total liabilities	1,665,439,000	1,902,974,000
Commitments and contingencies
Equity:
Preferred stock, $1.00 par value, 1,000,000 shares authorized; none outstanding	0	0
Common stock, $.01 par value, 49,000,000 shares authorized; 30,330,554 and 30,069,822 shares issued (including nonvested restricted stock of 422,013 and 604,353), respectively	299,000	295,000
Additional paid-in capital	287,907,000	286,048,000
Accumulated deficit	(29,082,000)	(29,486,000)
Treasury stock, at cost; 9,910,144 and 9,914,090 shares, respectively	(103,392,000)	(103,472,000)
Accumulated other comprehensive loss	(2,268,000)	(2,197,000)
Total stockholders’ equity	153,464,000	151,188,000
Total equity	898,502,000	733,790,000
Liabilities and equity	2,563,941,000	2,636,764,000
Consolidated Entity Excluding RSO [Member]
ASSETS
Cash	12,173,000	11,899,000
Restricted cash	561,000	638,000
Receivables	1,069,000	468,000
Receivables from managed entities and related parties, net	30,303,000	30,618,000
Investments in real estate, net	17,016,000	18,041,000
Investment securities, at fair value	12,487,000	10,576,000
Investments in unconsolidated loan manager	37,326,000	37,221,000
Investments in unconsolidated entities	13,518,000	13,156,000
Assets of consolidated variable interest entity (VIE) - RSO (see Note 18):
Property and equipment, net	2,496,000	2,590,000
Deferred tax assets, net	29,978,000	28,274,000
Other assets	6,257,000	6,726,000
Liabilities:
Accrued expenses and other liabilities	18,629,000	21,559,000
Payables to managed entities and related parties	3,219,000	3,536,000
Borrowings	20,492,000	21,040,000
Equity:
Accumulated other comprehensive loss	(2,268,000)	(2,197,000)
Noncontrolling interests	178,000	279,000
VIE - RSO [Member]
ASSETS
Investment securities, at fair value	247,274,000	256,433,000
Assets of consolidated variable interest entity (VIE) - RSO (see Note 18):
Cash and cash equivalents (including restricted cash)	269,363,000	179,390,000
Loans	1,685,130,000	1,849,428,000
Investments, at fair value	138,265,000	120,706,000
Other assets	60,725,000	70,600,000
Liabilities of consolidated VIE - RSO (see Note 18):
Borrowings	1,558,910,000	1,785,600,000
Other liabilities	64,189,000	71,239,000
Equity:
Noncontrolling interests	$ 744,860,000	$ 582,323,000