SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Collateralized Debt Obligation disclosures
Collateralized loan obligation secured notes	$ 5,178,657	$ 5,540,207
Minimum percentage of voting interest required to consolidate non-VIEs	50.00%
Collateralized Debt Obligation (CLOs) VIEs
Collateralized Debt Obligation disclosures
Corporate debt investment, par amount	$ 4,800,000	5,500,000
Estimated fair value of corporate debt investments	4,500,000	5,100,000
Collateralized Debt Obligation (CLOs) VIEs \| Nonaffiliates
Collateralized Debt Obligation disclosures
Collateralized loan obligation secured notes	$ 4,500,000	$ 4,900,000

Represents the par value of Corporate Debt Investments held within CLO entities.

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- Definition

The minimum percentage of voting interest required to consolidate non-Variable Interest Entities.

+ References

No definition available.

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

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- Definition

The fair value as of the balance sheet date of firm holdings in fixed income or other debt securities issued by a corporation or other issuer not elsewhere specified in the taxonomy. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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