CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS (Relationship with RSO) (Details) (USD $)				12 Months Ended			1 Months Ended	12 Months Ended	42 Months Ended			12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Maximum [Member]	Dec. 31, 2012 RSO [Member]	Dec. 31, 2011 RSO [Member]	Feb. 28, 2011 RSO [Member] CVC Credit Partners, L.P. [Member]	Jan. 31, 2011 RSO [Member]	Sep. 30, 2010 RSO [Member]	Sep. 30, 2012 RSO [Member]	Feb. 28, 2011 RSO [Member] holding	Sep. 30, 2010 RSO [Member] Commercial Finance [Member]	Sep. 30, 2010 RSO [Member] Maximum [Member]
Related Party Transaction [Line Items]
Term of management agreement									1 year
Base management fee as a percent of equity	0.083%
Number of CLOs holding										5
ColataCLOs in bank loans										$ 1,700,000,000
Percent of base and additional collateral management fees permited to be paid						10.00%
Percent of incentive collateral management fees permited to be paid						50.00%
Amount funded				0	13,600,000
Borrowings	21,343,000	214,054,000
Acquisition fees, percentage			2.00%				1.00%
Servicing fees, assets							1.00%
Loans and leases receivable, amount sold								116,000,000
Acquisition and servicing fees, loss recognized								7,500,000
Estimated reserve for acquisition and servicing fees								3,000,000
Loans and leases receivable, amount												5,900,000
Servicing liabilities at fair value											2,500,000
Write-off of unreimbursed capitalized cost								2,000,000
Loans and leases receivable, additional amount sold								10,300,000
Repurchase of loans and leases								$ 140,000