VARIABLE INTEREST ENTITIES LOANS HELD FOR INVESTMENT (Weighted Average Life of Bank Loans, at Amortized Cost) (Details) RSO (RSO [Member], Bank Loans [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
RSO [Member] | Bank Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less than one year	$ 10,028	$ 1,968
Greater than one year and less than five years	821,568	684,376
Five years or greater	361,718	487,409
Total	$ 1,193,314	$ 1,173,753