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Derivative Instruments - Summarize Information by Major Category of CDS Contracts (Detail) $ in Thousands	Sep. 30, 2015 USD ($) Transactions	Dec. 31, 2014 USD ($) Transactions
Summary of information by major category of CDS contracts
Gross principal notional outstanding	$ 1,313,797	$ 1,529,759
Successor [Member]
Summary of information by major category of CDS contracts
Number of CDS transactions | Transactions	14	16
CLO [Member] | Successor [Member]
Summary of information by major category of CDS contracts
Number of CDS transactions | Transactions	5	6
Gross principal notional outstanding	$ 341,668	$ 549,923
CLO [Member] | Successor [Member] | Credit Derivatives [Member]
Summary of information by major category of CDS contracts
Net derivative liabilities at fair value	$ 1,740	$ 2,027
Other [Member] | Successor [Member]
Summary of information by major category of CDS contracts
Number of CDS transactions | Transactions	9	10
Gross principal notional outstanding	$ 972,129	$ 979,836
Other [Member] | Successor [Member] | Credit Derivatives [Member]
Summary of information by major category of CDS contracts
Net derivative liabilities at fair value	$ 28,147	$ 71,432

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- Definition

Summary of information by major category of CDS contracts.

+ References

No definition available.

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Article 12



-Section 13



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Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 815



-SubTopic 10



-Section 50



-Paragraph 8



-Subparagraph (c)



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-Name Accounting Standards Codification



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-Section 50



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-Publisher FASB



-Name Accounting Standards Codification



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The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 815



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