RSO INVESTMENT SECURITIES, TRADING (Schedule of Investment Trading Securities at Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Schedule of Trading Securities and Other Trading Assets [Line Items]
Unrealized gain on trading securities	$ 745
Fair Value	3,796	5,365
Resource Capital Corp [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	22,828	15,460
Unrealized gain on trading securities	12,390	11,752
Unrealized Losses	(2,326)	(2,369)
Fair Value	32,892	24,843
Resource Capital Corp [Member] | Structured Notes [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	16,803	9,413
Unrealized gain on trading securities	10,964	10,894
Unrealized Losses	(1,005)	(1,028)
Fair Value	26,762	19,279
Resource Capital Corp [Member] | RMBS [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	6,025	6,047
Unrealized gain on trading securities	1,426	858
Unrealized Losses	(1,321)	(1,341)
Fair Value	$ 6,130	$ 5,564