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Derivative Instruments - Summary of Location and Amount of Gains and Losses of Derivative Contracts (Detail) - Successor [Member] - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Derivative instruments, gain (loss) recognized in income, net, Total | $ (216,962) | $ 34,177
Net Change in Fair Value of Credit Derivatives [Member] | Credit Derivatives [Member] | Financial Guarantee [Member] |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Derivative instruments, gain (loss) recognized in income, net, Total | 12,866 | (2,499)
Derivative Products [Member] | Financial Services Derivatives Products [Member] |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Derivative instruments, gain (loss) recognized in income, net, Total | (83,424) | (37,774)
Derivative Products [Member] | Interest Rate Swaps [Member] | Financial Services Derivatives Products [Member] |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Derivative instruments, gain (loss) recognized in income, net, Total | (77,107) | (35,547)
Derivative Products [Member] | Futures Contracts [Member] | Financial Services Derivatives Products [Member] |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Derivative instruments, gain (loss) recognized in income, net, Total | (6,317) | (2,227)
Income Loss On Variable Interest Entities [Member] | Variable Interest Entity [Member] |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Derivative instruments, gain (loss) recognized in income, net, Total | (146,404) | 74,450
Income Loss On Variable Interest Entities [Member] | Interest Rate Swaps [Member] | Variable Interest Entity [Member] |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Derivative instruments, gain (loss) recognized in income, net, Total | (158,343) | 52,186
Income Loss On Variable Interest Entities [Member] | Currency Swaps [Member] | Variable Interest Entity [Member] |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Derivative instruments, gain (loss) recognized in income, net, Total | $ 11,939 | $ 22,264

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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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 No definition available. + Details
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